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1

PREDICTION METRICS FOR CHEMICAL DETECTION IN LONG-WAVE INFRARED HYPERSPECTRAL IMAGERY  

SciTech Connect (OSTI)

Natural and man-made chemical processes generate gaseous plumes that may be detected by hyperspectral imaging, which produces a matrix of spectra affected by the chemical constituents of the plume, the atmosphere, the bounding background surface and instrument noise. A physics-based model of observed radiance shows that high chemical absorbance and low background emissivity result in a larger chemical signature. Using simulated hyperspectral imagery, this study investigated two metrics which exploited this relationship. The objective was to explore how well the chosen metrics predicted when a chemical would be more easily detected when comparing one background type to another. The two predictor metrics correctly rank ordered the backgrounds for about 94% of the chemicals tested as compared to the background rank orders from Whitened Matched Filtering (a detection algorithm) of the simulated spectra. These results suggest that the metrics provide a reasonable summary of how the background emissivity and chemical absorbance interact to produce the at-sensor chemical signal. This study suggests that similarly effective predictors that account for more general physical conditions may be derived.

Chilton, M.; Walsh, S.J.; Daly, D.S.

2009-01-01T23:59:59.000Z

2

Comparison of Long-Wave Infrared Imaging and Visible/Near-Infrared Imaging of Vegetation for  

E-Print Network [OSTI]

Comparison of Long-Wave Infrared Imaging and Visible/Near-Infrared Imaging of Vegetation using spectral imaging. This has been accom- plished with both visible/near-infrared (Vis/NIR) sunlight-path laser absorption measurements [14]­[16], in-situ visible and near-infrared (Vis/NIR) spectral

Lawrence, Rick L.

3

Long-wave infrared imaging of vegetation for detecting leaking CO2 gas  

E-Print Network [OSTI]

Long-wave infrared imaging of vegetation for detecting leaking CO2 gas Jennifer E. Johnson Joseph A for detecting leaking CO2 gas Jennifer E. Johnson,a Joseph A. Shaw,a Rick Lawrence,b Paul W. Nugent,a Laura M of these calibrated imagers is imaging of vegetation for CO2 gas leak detection. During a four-week period

Shaw, Joseph A.

4

Hyperspectral Imaging: Training Algorithms & Data Generation  

E-Print Network [OSTI]

Hyperspectral Imaging: Training Algorithms & Data Generation REU Students: Ping Fung and Carl +exp[-2(( + s))1/2 D / 3]} 1-rlSI +(rl - SI )exp[-2(( + s))1/2 D / 3] Data Generation To apply our possible parameters is impractical, so we generate approximate spectra using a physical model based

Mountziaris, T. J.

5

Hyperspectral Imaging At Blue Mountain Geothermal Area (Calvin...  

Open Energy Info (EERE)

search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Hyperspectral Imaging At Blue Mountain Geothermal Area (Calvin, Et Al., 2010) Exploration Activity Details Location...

6

Hyperspectral Imaging At Fish Lake Valley Area (Littlefield ...  

Open Energy Info (EERE)

Fish Lake Valley Area (Littlefield & Calvin, 2010) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Hyperspectral Imaging At Fish Lake Valley Area...

7

Hyperspectral Imaging | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating Solar Power BasicsGermany: EnergyPowerInformationHomerHydrogen CompaniesImaging

8

Methods for gas detection using stationary hyperspectral imaging sensors  

DOE Patents [OSTI]

According to one embodiment, a method comprises producing a first hyperspectral imaging (HSI) data cube of a location at a first time using data from a HSI sensor; producing a second HSI data cube of the same location at a second time using data from the HSI sensor; subtracting on a pixel-by-pixel basis the second HSI data cube from the first HSI data cube to produce a raw difference cube; calibrating the raw difference cube to produce a calibrated raw difference cube; selecting at least one desired spectral band based on a gas of interest; producing a detection image based on the at least one selected spectral band and the calibrated raw difference cube; examining the detection image to determine presence of the gas of interest; and outputting a result of the examination. Other methods, systems, and computer program products for detecting the presence of a gas are also described.

Conger, James L. (San Ramon, CA); Henderson, John R. (Castro Valley, CA)

2012-04-24T23:59:59.000Z

9

Digital Compressive Quantitation and Hyperspectral Imaging  

E-Print Network [OSTI]

Jun 20, 2013 ... produced using multivariate curve resolution (MCR) to pre-process mixture training spectra, thus facilitating the quantitation of mixtures even when no pure chemical component .... simulated annealing to ?nd the rotation matrix elements that ... the image registration was also performed in Matlab R2012a.

2013-07-25T23:59:59.000Z

10

The Robust Classification of Hyperspectral Images Using Adaptive Wavelet Kernel Support Vector Data Description  

E-Print Network [OSTI]

Detection of targets in hyperspectral images is a specific case of one-class classification. It is particularly relevant in the area of remote sensing and has received considerable interest in the past few years. The thesis proposes the use...

Kollegala, Revathi

2012-07-16T23:59:59.000Z

11

Development of Research Infrastructure in Nevada for the Exploitation of Hyperspectral Image Data to Address Proliferation and Detection of Chemical and Biological Materials.  

SciTech Connect (OSTI)

This research was to exploit hyperspectral reflectance imaging technology for the detection and mapping variability (clutter) of the natural background against which gases in the atmosphere are imaged. The natural background consists of landscape surface cover composed of consolidated rocks, unconsolidated rock weathering products, soils, coatings on rock materials, vegetation, water, materials constructed by humans, and mixtures of the above. Human made gases in the atmosphere may indicate industrial processes important to detecting non-nuclear chemical and biological proliferation. Our research was to exploit the Visible and Near-Infrared (NIR) and the Short-wave Infrared (SWIR) portions of the electromagnetic spectrum to determine the properties of solid materials on the earth’s surface that could influence the detection of gases in the Long-Wave Infrared (LWIR). We used some new experimental hyperspectral imaging technologies to collect data over the Non-Proliferation Test and Evaluation Center (NPTEC) located on the Nevada Test Site (NTS). The SpecTIR HyperSpecTIR (HST) and Specim Dual hyperspectral sensors were used to understand the variability in the imaged background (clutter), that detected, measured, identified and mapped with operational commercial hyperspectral techniques. The HST sensors were determined to be more experimental than operational because of problems with radiometric and atmospheric data correction. However the SpecTIR Dual system, developed by Specim in Finland, eventually was found to provide cost-effective hyperspectral image data collection and it was possible to correct the Dual system’s data for specific areas. Batch processing of long flightlines was still complex, and if comparison to laboratory spectra was desired, the Dual system data still had to be processed using the empirical line method. This research determined that 5-meter spatial resolution was adequate for mapping natural background variations. Furthermore, this research determined that spectral resolution of 10um was adequate, but a signal to noise above 300:1 was desirable for hyperspectral sensors with this spectral resolution. Finally, we acquired a hyperspectral thermal dataset (SEBASS) at 3m spatial resolution over our study area in Beatty, Nevada that can be co-registered with the hyperspectral reflectance, LIDAR and digital Orthophoto data sets. This data set will enable us to quantify how measurements in the reflected infrared can be used to make inferences about the response of materials in the thermal infrared, the topic of our follow-on NA-22 investigation ending in 2008. These data provide the basis for our investigations proposed for the NA-22 2008 Broad Area Announcement. Beginning in June 2008, SpecTIR Corporation and Aerospace Corporation plan to fly the SpecTIR Dual and SEBASS in a stabilized mount in a twin Otter aircraft. This research provides the foundation for using reflected and emitted hyperspectral measurements together for mapping geologic and soil materials in arid to semi-arid regions.

James V. Taranik

2007-12-31T23:59:59.000Z

12

Hyperspectral Imaging At Long Valley Caldera Geothermal Area...  

Open Energy Info (EERE)

aircraft and much in the same way more familiar geophysics are flown. The hyperspectral data records a continuous spatial record of the earth's surface, as well as measuring a...

13

Erratum to "Nonlinear Unmixing of Hyperspectral Images Using a Generalized Bilinear Model"  

E-Print Network [OSTI]

1 Erratum to "Nonlinear Unmixing of Hyperspectral Images Using a Generalized Bilinear Model for the four images. TABLE I UNMIXING ALGORITHM PERFORMANCES WITH ACTUAL AND ESTIMATED ENDMEMBERS (1ST AND 2ND SCENARIOS): RE AND SAM. 1st scenario 2nd scenario RE (×10-2 ) SAM (×10-2 ) RE (×10-2 ) SAM (×10-2 ) LMM FM

Dobigeon, Nicolas

14

3D optical sectioning with a new hyperspectral confocal fluorescence imaging system.  

SciTech Connect (OSTI)

A novel hyperspectral fluorescence microscope for high-resolution 3D optical sectioning of cells and other structures has been designed, constructed, and used to investigate a number of different problems. We have significantly extended new multivariate curve resolution (MCR) data analysis methods to deconvolve the hyperspectral image data and to rapidly extract quantitative 3D concentration distribution maps of all emitting species. The imaging system has many advantages over current confocal imaging systems including simultaneous monitoring of numerous highly overlapped fluorophores, immunity to autofluorescence or impurity fluorescence, enhanced sensitivity, and dramatically improved accuracy, reliability, and dynamic range. Efficient data compression in the spectral dimension has allowed personal computers to perform quantitative analysis of hyperspectral images of large size without loss of image quality. We have also developed and tested software to perform analysis of time resolved hyperspectral images using trilinear multivariate analysis methods. The new imaging system is an enabling technology for numerous applications including (1) 3D composition mapping analysis of multicomponent processes occurring during host-pathogen interactions, (2) monitoring microfluidic processes, (3) imaging of molecular motors and (4) understanding photosynthetic processes in wild type and mutant Synechocystis cyanobacteria.

Nieman, Linda T.; Sinclair, Michael B.; Davidson, George S.; Van Benthem, Mark Hilary; Haaland, David Michael; Timlin, Jerilyn Ann; Sasaki, Darryl Yoshio; Bachand, George David; Jones, Howland D. T.

2007-02-01T23:59:59.000Z

15

2008 IEEE TRANSACTIONS ON IMAGE PROCESSING, VOL. 21, NO. 4, APRIL 2012 SpectralSpatial Classification of Hyperspectral  

E-Print Network [OSTI]

­Spatial Classification of Hyperspectral Data Based on a Stochastic Minimum Spanning Forest Approach Kévin Bernard, Yuliya is proposed. In particular, the notion of sto- chastic minimum spanning forest (MSF) is introduced spanning forest (MSF), multiple classifiers, stochastic. I. INTRODUCTION HYPERSPECTRAL imaging can

Boyer, Edmond

16

Advanced Processing of Hyperspectral Images A. Plaza, J. A. Benediktsson, J. Boardman, J. Brazile, L. Bruzzone, G. Camps-Valls ,  

E-Print Network [OSTI]

from the interaction of solar energy with the molecular structure of the material. In this paper, we on recent, consolidated advances in technologies for efficient processing of hyperspectral imagery. First, we discuss hyperspectral image classification using support vector machines (SVMs), which are one

Plaza, Antonio J.

17

Programmable matched filter and Hadamard transform hyperspectral imagers based on micro-mirror arrays  

SciTech Connect (OSTI)

Hyperspectral imaging (HSI), in which each pixel contains a high-resolution spectrum, is a powerful technique that can remotely detect, identify, and quantify a multitude of materials and chemicals. The advent of addressable micro-mirror arrays (MMAs) makes possible a new class of programmable hyperspectral imagers that can perform key spectral processing functions directly in the optical hardware, thus alleviating some of HSI's high computational overhead, as well as offering improved signal-to-noise in certain important regimes (e.g. when using uncooled infrared detectors). We have built and demonstrated a prototype UV-Visible micro-mirror hyperspectral imager that is capable not only of matched-filter imaging, but also of full hyperspectral imagery via the Hadamard transform technique. With this instrument, one can upload a chemical-specific spectral matched filter directly to the MMA, producing an image showing the location of that chemical without further processing. Target chemicals are changeable nearly instantaneously simply by uploading new matched-filter patterns to the MMA. Alternatively, the MMA can implement Hadamard mask functions, yielding a full-spectrum hyperspectral image upon inverting the transform. In either case, the instrument can produce the 2D spatial image either by an internal scan, using the MMA itself, or with a traditional external push-broom scan. The various modes of operation are selectable simply by varying the software driving the MMA. Here the design and performance of the prototype is discussed, along with experimental results confirming the signal-to-noise improvement produced by the Hadamard technique in the noisy-detector regime.

Love, Steven P [Los Alamos National Laboratory

2008-01-01T23:59:59.000Z

18

Mapping oil spills on sea water using spectral mixture analysis of hyperspectral image data  

E-Print Network [OSTI]

Mapping oil spills on sea water using spectral mixture analysis of hyperspectral image data Javier large spill oil events threatening coastal habitats and species. Some recent examples include the 2002 Prestige tanker oil spill in Galicia, Northern Spain, as well as repeated oil spill leaks evidenced

Plaza, Antonio J.

19

Automation of waste recycling using hyperspectral image analysis Artzai Picon1  

E-Print Network [OSTI]

Automation of waste recycling using hyperspectral image analysis Artzai Picon1 Ovidiu Ghita2 Pedro. In this paper we present a novel methodology to automate the recycling process of non-ferrous metal Waste from that the proposed solution can be used to replace the manual procedure that is currently used in WEEE recycling

Whelan, Paul F.

20

Hyperspectral microscope for in vivo imaging of microstructures and cells in tissues  

DOE Patents [OSTI]

An optical hyperspectral/multimodal imaging method and apparatus is utilized to provide high signal sensitivity for implementation of various optical imaging approaches. Such a system utilizes long working distance microscope objectives so as to enable off-axis illumination of predetermined tissue thereby allowing for excitation at any optical wavelength, simplifies design, reduces required optical elements, significantly reduces spectral noise from the optical elements and allows for fast image acquisition enabling high quality imaging in-vivo. Such a technology provides a means of detecting disease at the single cell level such as cancer, precancer, ischemic, traumatic or other type of injury, infection, or other diseases or conditions causing alterations in cells and tissue micro structures.

Demos; Stavros G. (Livermore, CA)

2011-05-17T23:59:59.000Z

Note: This page contains sample records for the topic "hyperspectral imaging long-wave" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Extended data analysis strategies for high resolution imaging MS: New methods to deal with extremely large image hyperspectral datasets  

E-Print Network [OSTI]

The large size of the hyperspectral datasets that are produced with modern mass spectrometric imaging techniques makes it difficult to analyze the results. Unsupervised statistical techniques are needed to extract relevant information from these datasets and reduce the data into a surveyable overview. Multivariate statistics are commonly used for this purpose. Computational power and computer memory limit the resolution at which the datasets can be analyzed with these techniques. We introduce the use of a data format capable of efficiently storing sparse datasets for multivariate analysis. This format is more memory-efficient and therefore it increases the possible resolution together with a decrease of computation time. Three multivariate techniques are compared for both sparse-type data and non-sparse data acquired in two different imaging ToF-SIMS experiments and one LDI-ToF imaging experiment. There is no significant qualitative difference in the use of different data formats for the same multivariate algorithms. All evaluated multivariate techniques could be applied on both SIMS and the LDI imaging datasets. Principal component analysis is shown to be the fastest choice; however a small increase of computation time using a VARIMAX optimization increases the decomposition quality significantly. PARAFAC analysis is shown to be very effective in separating different chemical components but the calculations take a significant amount of time, limiting its use as a routine technique. An effective visualization of the results of the multivariate analysis is as important for the analyst as the computational issues. For this reason, a new technique for visualization is presented, combining both spectral loadings and spatial

Leendert A. Klerk A; Er Broersen B; Ian W. Fletcher C

2006-01-01T23:59:59.000Z

22

Mapping microphytobenthos biomass by non-linear inversion of visible-infrared hyperspectral images  

E-Print Network [OSTI]

- 1 - Mapping microphytobenthos biomass by non-linear inversion of visible-infrared hyperspectral-Philippe.Combe@chimie.univ-nantes.fr Abstract This study presents an innovative approach to map microphytobenthos biomass and fractional cover to microscale intimate mixtures. This prevents the use of classical linear unmixing models to retrieve biomass

Combe, Jean-Philippe

23

Long-Wave Infrared | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's Heat JumpInc Place:KeystoneSolarListLiveFuels Inc JumpLoessEnergyLong-Wave

24

VIMS images of the Huygens landing site on Titan: S. Rodriguez et al. Cassini/VIMS hyperspectral observations of the HUYGENS  

E-Print Network [OSTI]

VIMS images of the Huygens landing site on Titan: S. Rodriguez et al. 1 Cassini/VIMS hyperspectral.N. Clark2 , B. Buratti3 , R.H. Brown4 , T.B. McCord5 , P.D. Nicholson6 , K.H. Baines3 and the VIMS science Number of Table(s): 1 Number of figure(s): 11 Running Head: VIMS images of the Huygens probe landing site

Paris-Sud XI, Université de

25

Suspended sediment and hydrodynamics above mildly sloped long wave ripples  

E-Print Network [OSTI]

Suspended sediment and hydrodynamics above mildly sloped long wave ripples Yeon S. Chang of suspended sediment and the associated hydrodynamics over mildly sloped long wave ripples on the inner shelf m. The vertical and temporal structures of the suspended sediment concentration (SSC) are consistent

Kirby, James T.

26

Turbulent Flow and Transport Modeling by Long Waves and Currents  

E-Print Network [OSTI]

This dissertation presents models for turbulent flow and transport by currents and long waves in large domain. From the Navier-Stokes equations, a fully nonlinear depth-integrated equation model for weakly dispersive, turbulent and rotational flow...

Kim, Dae Hong

2010-10-12T23:59:59.000Z

27

Classification of hyperspectral images by tensor modeling and additive morphological decomposition  

E-Print Network [OSTI]

. AMD defines a scale-space decomposition for multivariate images without any loss of information. AMD`emes, MINES Paristech, France Abstract Pixel-wise classification in high-dimensional multivariate images is modeled as a tensor structure and tensor principal components analysis is compared as dimensional

Boyer, Edmond

28

Geothermal Exploration with Visible through Long Wave Infrared Imaging  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to: navigation, search OpenEI ReferenceInformation SurfaceData

29

Hyperspectral Data Classification Using Spectral-Spatial Approaches  

E-Print Network [OSTI]

Hyperspectral Data Classification Using Spectral-Spatial Approaches Yuliya Tarabalka1 , Jón Atli classification problem AVIRIS image Spatial resolution: 20m/pix Spectral resolution: 200 bands Ground-truth data.tarabalka@nasa.gov) Spectral-Spatial Classification of Hyperspectral Data 6 #12;Introduction Classification using segmentation

Dobigeon, Nicolas

30

Hyperspectral imaging spectroscopy of a Mars analogue environment at the North Pole Dome, Pilbara Craton, Western Australia  

E-Print Network [OSTI]

A visible and near infrared (VNIR) to shortwave infrared (SWIR) hyperspectral dataset of the Early Archaean North Pole Dome, Pilbara Craton, Western Australia, has been analysed for indications of hydrothermal alteration. Occurrence maps of hydrothermal alteration minerals were produced. It was found that using a spatial resolution on the ground of approximately 5 m and spectral coverage from 0.4 to 2.5 mm was sufficient to delineate several hydrothermal alteration zones and associated veins, including phyllic, serpentinitic and chloritic alteration. These results suggest this level of spectral and spatial resolution would be ideal for localising shallow epithermal activity, should such activity have existed, on the surface of Mars.

Brown, Adrian J; Cudahy, Thomas

2014-01-01T23:59:59.000Z

31

Rogue Wave Modes for the Long Wave-Short Wave Resonance Kwok Wing CHOW*(1)  

E-Print Network [OSTI]

1 Rogue Wave Modes for the Long Wave-Short Wave Resonance Model Kwok Wing CHOW*(1) , Hiu Ning CHAN.45.Yv; 47.35.Fg ABSTRACT The long wave-short wave resonance model arises physically when the phase velocity of a long wave matches the group velocity of a short wave. It is a system of nonlinear evolution

32

E-Print Network 3.0 - airborne hyperspectral sensors Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

imaging activities in Europe, ranging from sensor design and flight operation to data collection... directed towards the improvement of hyperspectral sensor and mission...

33

Hyperspectral Imaging or Imaging Spectroscopy  

E-Print Network [OSTI]

DIFFERENTIATION Every sensor is limited in respect to the size of the smallest area that can be separately V / NIR / SWIR / MWIR / LWIR Optical Region 400 14000 400 0.4 14000 14.0 1500 1.5 3000 3.0 5000 5;Sampling the Spectrum NIR SWIR MWIR LWIR 400 nm 700 1500 3000 RB 5000 14000 nm G Panchromatic: one very

Gilbes, Fernando

34

Hyperspectral stimulated emission depletion microscopy and methods of use thereof  

DOE Patents [OSTI]

A hyperspectral stimulated emission depletion ("STED") microscope system for high-resolution imaging of samples labeled with multiple fluorophores (e.g., two to ten fluorophores). The hyperspectral STED microscope includes a light source, optical systems configured for generating an excitation light beam and a depletion light beam, optical systems configured for focusing the excitation and depletion light beams on a sample, and systems for collecting and processing data generated by interaction of the excitation and depletion light beams with the sample. Hyperspectral STED data may be analyzed using multivariate curve resolution analysis techniques to deconvolute emission from the multiple fluorophores. The hyperspectral STED microscope described herein can be used for multi-color, subdiffraction imaging of samples (e.g., materials and biological materials) and for analyzing a tissue by Forster Resonance Energy Transfer ("FRET").

Timlin, Jerilyn A; Aaron, Jesse S

2014-04-01T23:59:59.000Z

35

Long waves in parallel flow in Hele-Shaw cells  

SciTech Connect (OSTI)

During the past several years the flow of immiscible flow in Hele-Shaw cells and porous media has been investigated extensively. Of particular interest to most studies has been frontal displacement, specifically viscous fingering instabilities and finger growth. The practical ramifications regarding oil recovery, as well as many other industrial processes in porous media, have served as the primary driving force for most of these investigations. By contrast, little attention has been paid to the motion of lateral fluid interface, which are parallel to the main flow direction. Parallel flow is an often encountered, although much overlooked regime. The evolution of fluid interfaces in parallel flow in Hele-Shaw cells is studied both theoretically and experimentally in the large capillary number limit. It is shown that such interfaces support wave motion, the amplitude of which for long waves is governed by the KdV equation. Experiments are conducted in a long Hele-Shaw cell that validate the theory in the symmetric case. 35 refs., 16 figs.

Zeybek, M.; Yortsos, Y.C.

1991-04-01T23:59:59.000Z

36

Rogue waves for a long wave-short wave resonance model with multiple short waves  

E-Print Network [OSTI]

1 Rogue waves for a long wave-short wave resonance model with multiple short waves Hiu Ning Chan (1 waves; Long-short resonance PACS Classification: 02.30.Jr; 05.45.Yv; 47.35.Fg #12;2 ABSTRACT A resonance between long and short waves will occur if the phase velocity of the long wave matches the group velocity

37

Physica D 159 (2001) 3557 Wave group dynamics in weakly nonlinear long-wave models  

E-Print Network [OSTI]

Physica D 159 (2001) 35­57 Wave group dynamics in weakly nonlinear long-wave models Roger Grimshawa Communicated by A.C. Newell Abstract The dynamics of wave groups is studied for long waves, using the framework reserved. Keywords: Wave group dynamics; Korteweg­de Vries equation; Nonlinear Schr¨odinger equation 1

Pelinovsky, Dmitry

38

International Journal of Mass Spectrometry 260 (2007) 222–236 Extended data analysis strategies for high resolution imaging MS: New methods to deal with extremely large image hyperspectral datasets  

E-Print Network [OSTI]

The large size of the hyperspectral datasets that are produced with modern mass spectrometric imaging techniques makes it difficult to analyze the results. Unsupervised statistical techniques are needed to extract relevant information from these datasets and reduce the data into a surveyable overview. Multivariate statistics are commonly used for this purpose. Computational power and computer memory limit the resolution at which the datasets can be analyzed with these techniques. We introduce the use of a data format capable of efficiently storing sparse datasets for multivariate analysis. This format is more memory-efficient and therefore it increases the possible resolution together with a decrease of computation time. Three multivariate techniques are compared for both sparse-type data and non-sparse data acquired in two different imaging ToF-SIMS experiments and one LDI-ToF imaging experiment. There is no significant qualitative difference in the use of different data formats for the same multivariate algorithms. All evaluated multivariate techniques could be applied on both SIMS and the LDI imaging datasets. Principal component analysis is shown to be the fastest choice; however a small increase of computation time using a VARIMAX optimization increases the decomposition quality significantly. PARAFAC analysis is shown to be very effective in separating different chemical components but the calculations take a significant amount of time, limiting its use as a routine technique. An effective visualization of the results of the multivariate analysis is as important for the analyst as the computational issues. For this reason, a new technique for visualization is presented, combining both spectral loadings and spatial

Leendert A. Klerk A; Er Broersen B; Ian W. Fletcher C

2006-01-01T23:59:59.000Z

39

Modulation and kinematics of mechanically-generated short gravity waves riding on long waves  

E-Print Network [OSTI]

for the degree of MASTER OF SCIENCE December 1992 Major Subject: Ocean Engineering MODULATION AND KINEMATICS OF MECHANICALLY- GENERATED SHORT GRAVITY WAVES RIDING ON LONG WAVES A Thesis by C~S ANTHONY SPELL Approved as to style and content by: Jun Zhang... fundamental nonlinear wave interaction occurring in an irregular wave field. The objectives of the present study are now stated: ~ Generate a dual-component wave formed from the interaction of two inde- pendently propagating monochromatic wave trains in a...

Spell, Charles Anthony

1992-01-01T23:59:59.000Z

40

Hyperspectral Microscopy of Explosives Particles Using an External Cavity Quantum Cascade Laser  

SciTech Connect (OSTI)

Using infrared hyperspectral imaging, we demonstrate microscopy of small particles of the explosives compounds RDX, tetryl, and PETN with near diffraction-limited performance. The custom microscope apparatus includes an external cavity quantum cascade laser illuminator scanned over its tuning range of 9.13-10.53 µm in four seconds, coupled with a microbolometer focal plane array to record infrared transmission images. We use the hyperspectral microscopy technique to study the infrared absorption spectra of individual explosives particles, and demonstrate sub-nanogram detection limits.

Phillips, Mark C.; Bernacki, Bruce E.

2012-12-26T23:59:59.000Z

Note: This page contains sample records for the topic "hyperspectral imaging long-wave" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

Characterization of forest crops with a range of nutrient and water treatments using AISA Hyperspectral Imagery.  

SciTech Connect (OSTI)

This research examined the utility of Airborne Imaging Spectrometer for Applications (AISA) hyperspectral imagery for estimating the biomass of three forest crops---sycamore, sweetgum and loblolly pine--planted in experimental plots with a range of fertilization and irrigation treatments on the Savannah River Site near Aiken, South Carolina.

Gong, Binglei; Im, Jungho; Jensen, John, R.; Coleman, Mark; Rhee, Jinyoung; Nelson, Eric

2012-07-01T23:59:59.000Z

42

WEAK SIGNAL DETECTION IN HYPERSPECTRAL IMAGERY USING SPARSE MATRIX TRANSFORM (SMT) COVARIANCE ESTIMATION  

E-Print Network [OSTI]

Sciences Los Alamos, NM 87544 ABSTRACT Many detection algorithms in hyperspectral image analysis, from well Laboratory. 1. INTRODUCTION The covariance matrix is the cornerstone of multivariate sta- tistical analysis and Computer Engineering West Lafayette, IN 47907 Los Alamos National Laboratory Space and Remote Sensing

43

Long wave infrared cavity-enhanced sensors using quantum cascade lasers  

SciTech Connect (OSTI)

Quantum cascade lasers (QCLs) are becoming well known as convenient and stable semiconductor laser sources operating in the mid- to long-wave infrared, and are able to be fabricated to operate virtually anywhere in the 3.5 to 25 micron region. This makes them an ideal choice for infrared chemical sensing, a topic of great interest at present, spanning at least three critical areas: national security, environmental monitoring and protection, and the early diagnosis of disease through breath analysis. There are many different laser-based spectroscopic chemical sensor architectures in use today, from simple direct detection through to more complex and highly sensitive systems. Many current sensor needs can be met by combining QCLs and appropriate sensor architectures, those needs ranging from UAV-mounted surveillance systems, through to larger ultra-sensitive systems for airport security. In this paper we provide an overview of various laser-based spectroscopic sensing techniques, pointing out advantages and disadvantages of each. As part of this process, we include our own results and observations for techniques under development at PNNL. We also present the latest performance of our ultra-quiet QCL control electronics now being commercialized, and explore how using optimized supporting electronics enables increased sensor performance and decreased sensor footprint for given applications.

Taubman, Matthew S.; Scott, David C.; Myers, Tanya L.; Cannon, Bret D.

2005-12-30T23:59:59.000Z

44

Systems having optical absorption layer for mid and long wave infrared and methods for making the same  

SciTech Connect (OSTI)

An optical system according to one embodiment includes a substrate; and an optical absorption layer coupled to the substrate, wherein the optical absorption layer comprises a layer of diamond-like carbon, wherein the optical absorption layer absorbs at least 50% of mid wave infrared light (3-5 .mu.m wavelength) and at least 50% of long wave infrared light (8-13 .mu.m wavelength). A method for applying an optical absorption layer to an optical system according to another embodiment includes depositing a layer of diamond-like carbon of an optical absorption layer above a substrate using plasma enhanced chemical vapor deposition, wherein the optical absorption layer absorbs at least 50% of mid wave infrared light (3-5 .mu.m wavelength) and at least 50% of long wave infrared light (8-13 .mu.m wavelength). Additional systems and methods are also presented.

Kuzmenko, Paul J

2013-10-01T23:59:59.000Z

45

Category:Hyperspectral Imaging | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating SolarElectricEnergyCTBarreis aCallahanWind FarmAdd a new

46

Bias-Dependent Tunable Response of Normal Incidence Long Wave Infrared Quantum Dot Detectors  

E-Print Network [OSTI]

(FLIR) applications, a broadband response is desirable. However, for multispectral imaging" sensors can be operated in the FLIR mode (possibl

Hayat, Majeed M.

47

1380 IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, VOL. 39, NO. 7, JULY 2001 Unsupervised Target Detection in Hyperspectral  

E-Print Network [OSTI]

and Tukey [1], [2] to be used as a technique for exploratory analysis of multivariate data and has been is reduced to a well-known technique, principal components analysis (PCA). Using PP for hyperspectral image set into a low dimensional data space while retaining desired informa- tion of interest. It utilizes

Chang, Chein-I

48

Radiometric and Geometric Analysis of Hyperspectral Imagery Acquired from an Unmanned Aerial Vehicle  

SciTech Connect (OSTI)

In the summer of 2010, an Unmanned Aerial Vehicle (UAV) hyperspectral in-flight calibration and characterization experiment of the Resonon PIKA II imaging spectrometer was conducted at the U.S. Department of Energy’s Idaho National Laboratory (INL) UAV Research Park. The purpose of the experiment was to validate the radiometric calibration of the spectrometer and determine the georegistration accuracy achievable from the on-board global positioning system (GPS) and inertial navigation sensors (INS) under operational conditions. In order for low-cost hyperspectral systems to compete with larger systems flown on manned aircraft, they must be able to collect data suitable for quantitative scientific analysis. The results of the in-flight calibration experiment indicate an absolute average agreement of 96.3%, 93.7% and 85.7% for calibration tarps of 56%, 24%, and 2.5% reflectivity, respectively. The achieved planimetric accuracy was 4.6 meters (based on RMSE).

Ryan C. Hruska; Jessica J. Mitchell; Matthew O. Anderson; Nancy F. Glenn

2012-09-01T23:59:59.000Z

49

Hyperspectral Mineral Mapping in Support of Geothermal Exploration: Examples from Long Valley Caldera, CA and Dixie Valley, NV, USA  

SciTech Connect (OSTI)

Growing interest and exploration dollars within the geothermal sector have paved the way for increasingly sophisticated suites of geophysical and geochemical tools and methodologies. The efforts to characterize and assess known geothermal fields and find new, previously unknown resources has been aided by the advent of higher spatial resolution airborne geophysics (e.g. aeromagnetics), development of new seismic processing techniques, and the genesis of modern multi-dimensional fluid flow and structural modeling algorithms, just to name a few. One of the newest techniques on the scene, is hyperspectral imaging. Really an optical analytical geochemical tool, hyperspectral imagers (or imaging spectrometers as they are also called), are generally flown at medium to high altitudes aboard mid-sized aircraft and much in the same way more familiar geophysics are flown. The hyperspectral data records a continuous spatial record of the earth's surface, as well as measuring a continuous spectral record of reflected sunlight or emitted thermal radiation. This high fidelity, uninterrupted spatial and spectral record allows for accurate material distribution mapping and quantitative identification at the pixel to sub-pixel level. In volcanic/geothermal regions, this capability translates to synoptic, high spatial resolution, large-area mineral maps generated at time scales conducive to both the faster pace of the exploration and drilling managers, as well as to the slower pace of geologists and other researchers trying to understand the geothermal system over the long run.

Martini, B; Silver, E; Pickles, W; Cocks, P

2004-03-25T23:59:59.000Z

50

Hyperspectral Mineral Mapping in Support of Geothermal Exploration: Examples from Long Valley Caldera, CA and Dixie Valley, NV, USA  

SciTech Connect (OSTI)

Growing interest and exploration dollars within the geothermal sector have paved the way for increasingly sophisticated suites of geophysical and geochemical tools and methodologies. The efforts to characterize and assess known geothermal fields and find new, previously unknown resources has been aided by the advent of higher spatial resolution airborne geophysics (e.g. aeromagnetics), development of new seismic processing techniques, and the genesis of modern multi-dimensional fluid flow and structural modeling algorithms, just to name a few. One of the newest techniques on the scene, is hyperspectral imaging. Really an optical analytical geochemical tool, hyperspectral imagers (or imaging spectrometers as they are also called), are generally flown at medium to high altitudes aboard mid-sized aircraft and much in the same way more familiar geophysics are flown. The hyperspectral data records a continuous spatial record of the earth's surface, as well as measuring a continuous spectral record of reflected sunlight or emitted thermal radiation. This high fidelity, uninterrupted spatial and spectral record allows for accurate material distribution mapping and quantitative identification at the pixel to sub-pixel level. In volcanic/geothermal regions, this capability translates to synoptic, high spatial resolution, large-area mineral maps generated at time scales conducive to both the faster pace of the exploration and drilling managers, as well as to the slower pace of geologists and other researchers trying to understand the geothermal system over the long run.

Pickles, W L; Martini, B A; Silver, E A; Cocks, P A

2004-03-03T23:59:59.000Z

51

Hyperspectral Aerosol Optical Depths from TCAP Flights  

SciTech Connect (OSTI)

4STAR (Spectrometer for Sky-Scanning, Sun-Tracking Atmospheric Research), the world’s first hyperspectral airborne tracking sunphotometer, acquired aerosol optical depths (AOD) at 1 Hz during all July 2012 flights of the Two Column Aerosol Project (TCAP). Root-mean square differences from AERONET ground-based observations were 0.01 at wavelengths between 500-1020 nm, 0.02 at 380 and 1640 nm and 0.03 at 440 nm in four clear-sky fly-over events, and similar in ground side-by-side comparisons. Changes in the above-aircraft AOD across 3-km-deep spirals were typically consistent with integrals of coincident in situ (on DOE Gulfstream 1 with 4STAR) and lidar (on NASA B200) extinction measurements within 0.01, 0.03, 0.01, 0.02, 0.02, 0.02 at 355, 450, 532, 550, 700, 1064 nm, respectively, despite atmospheric variations and combined measurement uncertainties. Finer vertical differentials of the 4STAR measurements matched the in situ ambient extinction profile within 14% for one homogeneous column. For the AOD observed between 350-1660 nm, excluding strong water vapor and oxygen absorption bands, estimated uncertainties were ~0.01 and dominated by (then) unpredictable throughput changes, up to +/-0.8%, of the fiber optic rotary joint. The favorable intercomparisons herald 4STAR’s spatially-resolved high-frequency hyperspectral products as a reliable tool for climate studies and satellite validation.

Shinozuka, Yohei; Johnson, Roy R.; Flynn, Connor J.; Russell, P. B.; Schmid, Beat; Redemann, Jens; Dunagan, Stephen; Kluzek, Celine D.; Hubbe, John M.; Segal-Rosenheimer, Michal; Livingston, J. M.; Eck, T.; Wagener, Richard; Gregory, L.; Chand, Duli; Berg, Larry K.; Rogers, Ray; Ferrare, R. A.; Hair, John; Hostetler, Chris A.; Burton, S. P.

2013-11-13T23:59:59.000Z

52

Hyperspectral Mineral Mapping In Support Of Geothermal Exploration...  

Open Energy Info (EERE)

aircraft and much in the same way more familiar geophysics are flown. The hyperspectral data records a continuous spatial record of the earth's surface, as well as measuring a...

53

UNMANNED AERIAL VEHICLE (UAV) HYPERSPECTRAL REMOTE SENSING FOR DRYLAND VEGETATION MONITORING  

SciTech Connect (OSTI)

UAV-based hyperspectral remote sensing capabilities developed by the Idaho National Lab and Idaho State University, Boise Center Aerospace Lab, were recently tested via demonstration flights that explored the influence of altitude on geometric error, image mosaicking, and dryland vegetation classification. The test flights successfully acquired usable flightline data capable of supporting classifiable composite images. Unsupervised classification results support vegetation management objectives that rely on mapping shrub cover and distribution patterns. Overall, supervised classifications performed poorly despite spectral separability in the image-derived endmember pixels. Future mapping efforts that leverage ground reference data, ultra-high spatial resolution photos and time series analysis should be able to effectively distinguish native grasses such as Sandberg bluegrass (Poa secunda), from invasives such as burr buttercup (Ranunculus testiculatus) and cheatgrass (Bromus tectorum).

Nancy F. Glenn; Jessica J. Mitchell; Matthew O. Anderson; Ryan C. Hruska

2012-06-01T23:59:59.000Z

54

FPGA based image processing with R-fuctions and the curvelet transform  

E-Print Network [OSTI]

previously not feasible to develop. By using the concepts presented in this thesis, ideas have come about for the development of a large scale Boltzman equation solver, and a satellite hyperspectral imaging system. The Boltzman equation solver has been...

Wisinger, John L.

2003-01-01T23:59:59.000Z

55

Effect of Background Emissivity on Gas Detection in Thermal Hyperspectral Imagery  

SciTech Connect (OSTI)

Detecting and identifying weak gaseous plumes using thermal imaging data is complicated by many factors. These include variability due to atmosphere, ground and plume temper- ature, and background clutter. This paper presents an analysis of one formulation of the physics-based radiance model, which describes at-sensor observed radiance. The background emissivity and plume/ground temperatures are isolated, and their effects on net chemical signal are described. This analysis shows that the plume’s physical state, emission or absorption, is directly dependent on the background emissivity. It then describes what conditions on the background emissivity have inhibiting effects on the net chemical signal. These claims are illustrated by analyzing synthetic hyperspectral imaging data with the Adaptive Matched Filter using four chemicals and three distinct background emissivities. Two chemicals (Carbontetrachloride and Tetraflourosilane) in the analysis had a very strong relationship with the background emissivities: they exhibited absorbance over a small range of wavenumbers and the background emissivities showed a consistent ordering at these wavenumbers. Analysis of simulated hyperspectral images containing these chemicals showed complete agreement with the analysis of the physics-based model that described when the background emissivities would have inhibiting effects on gas detection. The other chemicals considered (Ammonia and Tributylphosphate) exhibited very complex absorbance structure across the longwave infrared spectrum. Analysis of images containing these chemicals revealed that the the analysis of the physics-based model did not hold completely for these complex chemicals but did suggest that gas detection was dominated by their dominant absorbance features. These results provide some explanation of the effect of the background emissivity on gas detection and a more general exploration of gas absorbance/background emissivity variability and their effects on gas detection is warranted. i

Walsh, Stephen J.; Tardiff, Mark F.; Chilton, Lawrence K.; Metoyer, Candace N.

2008-10-02T23:59:59.000Z

56

Correction to “Hyperspectral Aerosol Optical Depths from TCAP Flights”  

SciTech Connect (OSTI)

In the paper “Hyperspectral aerosol optical depths from TCAP flights” by Y. Shinozuka et al. (Journal of Geophysical Research: Atmospheres, 118, doi:10.1002/2013JD020596, 2013), Tables 1 and 2 were published with the column heads out of order. Tables 1 and 2 are published correctly here. The publisher regrets the error.

Shinozuka, Yohei; Johnson, Roy R.; Flynn, Connor J.; Russell, P. B.; Schmid, Beat; Redemann, Jens; Dunagan, Stephen; Kluzek, Celine D.; Hubbe, John M.; Segal-Rosenheimer, Michal; Livingston, J. M.; Eck, T.; Wagener, Richard; Gregory, L.; Chand, Duli; Berg, Larry K.; Rogers, Ray; Ferrare, R. A.; Hair, John; Hostetler, Chris A.; Burton, S. P.

2014-02-16T23:59:59.000Z

57

Joint Linear/Nonlinear Spectral Unmixing of Hyperspectral Image Data  

E-Print Network [OSTI]

of the mixing process, several naturally occurring situations exist where nonlinear models may provide the most and flexibility in different applications, there are many naturally occuring situations where nonlinear mixture mixed spectra from the reflected surface radiation of various subpixel constituent materials

Plaza, Antonio J.

58

Estimation of Atmospheric PSF Parameters for Hyperspectral Imaging  

E-Print Network [OSTI]

from the online tutorial: http://personalpages.manchester.ac.uk/staff/ david.foster/Tutorial_HSI2RGB

Plemmons, Robert J.

59

Hyperspectral Imaging At Dixie Valley Geothermal Field Area (Laney, 2005) |  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:GreerHiCalifornia: Energythe Second Workshop onDepositedHyperionOpen

60

Hyperspectral Imaging At Yellowstone Region (Hellman & Ramsey, 2004) | Open  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:GreerHiCalifornia: Energythe Second Workshop

Note: This page contains sample records for the topic "hyperspectral imaging long-wave" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


61

Hyperspectral Imaging At Blue Mountain Geothermal Area (Calvin, Et Al.,  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:PhotonHolyName HousingIIIDrive Ltd Jump to:

62

Hyperspectral Imaging At Long Valley Caldera Geothermal Area (Martini, Et  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:PhotonHolyName HousingIIIDrive Ltd Jump to:Al., 2003) |

63

E-Print Network 3.0 - airborne hyperspectral imagery Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

for Fusion of Hyperspectral and Multispectral Imagery with the Objective of Improving Spatial Resolution While Retaining Spectral Data Summary: Development of Algorithm for...

64

Cassini/VIMS hyperspectral observations of the HUYGENS landing site on Titan  

E-Print Network [OSTI]

Titan is one of the primary scientific objectives of the NASA ESA ASI Cassini Huygens mission. Scattering by haze particles in Titan's atmosphere and numerous methane absorptions dramatically veil Titan's surface in the visible range, though it can be studied more easily in some narrow infrared windows. The Visual and Infrared Mapping Spectrometer (VIMS) instrument onboard the Cassini spacecraft successfully imaged its surface in the atmospheric windows, taking hyperspectral images in the range 0.4 5.2 ?m. On 26 October (TA flyby) and 13 December 2004 (TB flyby), the Cassini Huygens mission flew over Titan at an altitude lower than 1200 km at closest approach. We report here on the analysis of VIMS images of the Huygens landing site acquired at TA and TB, with a spatial resolution ranging from 16 to14.4 km/pixel. The pure atmospheric backscattering component is corrected by using both an empirical method and a first-order theoretical model. Both approaches provide consistent results. After the removal of scat...

Rodríguez, S; Sotin, C; Clénet, H; Clark, R N; Buratti, B; Brown, R H; Mccord, T B; Nicholson, P D; Baines, K H; 10.1016/J.PSS.2006.06.016

2009-01-01T23:59:59.000Z

65

Evaluating the Effects of Spatial Resolution on Hyperspectral Fire Detection and Temperature Retrieval  

E-Print Network [OSTI]

and background land cover. Previous work has used hyperspectral data acquired from airborne platforms, limiting (Riaño et al., 2002). Hyperspectral sensors utilize a large number of contiguous bands, each, like all airborne sensors, faces issues of varying spatial resolutions and has limited spatial

66

Gas Plume Species Identification in LWIR Hyperspectral Imagery by Regression Analyses  

E-Print Network [OSTI]

Gas Plume Species Identification in LWIR Hyperspectral Imagery by Regression Analyses by David Title of Thesis: Gas Plume Species Identification in LWIR Hyperspectral Imagery by Regression Analyses I in whole or in part. Any reproduction will not be for commercial use or profit. Signature Date ii #12;Gas

Salvaggio, Carl

67

3D-FFT for Signature Detection in LWIR Images  

SciTech Connect (OSTI)

Improvements in analysis detection exploitation are possible by applying whitened matched filtering within the Fourier domain to hyperspectral data cubes. We describe an implementation of a Three Dimensional Fast Fourier Transform Whitened Matched Filter (3DFFTMF) approach and, using several example sets of Long Wave Infra Red (LWIR) data cubes, compare the results with those from standard Whitened Matched Filter (WMF) techniques. Since the variability in shape of gaseous plumes precludes the use of spatial conformation in the matched filtering, the 3DFFTMF results were similar to those of two other WMF methods. Including a spatial low-pass filter within the Fourier space can improve signal to noise ratios and therefore improve detection limit by facilitating the mitigation of high frequency clutter. The improvement only occurs if the low-pass filter diameter is smaller than the plume diameter.

Medvick, Patricia A.; Lind, Michael A.; Mackey, Patrick S.; Nuffer, Lisa L.; Foote, Harlan P.

2007-11-20T23:59:59.000Z

68

Six-dimensional supersymmetric gauge theories, quantum cohomology of instanton moduli spaces and gl(N) Quantum Intermediate Long Wave Hydrodynamics  

E-Print Network [OSTI]

We show that the exact partition function of U(N) six-dimensional gauge theory with eight supercharges on C^2 x S^2 provides the quantization of the integrable system of hydrodynamic type known as gl(N) periodic Intermediate Long Wave (ILW). We characterize this system as the hydrodynamic limit of elliptic Calogero-Moser integrable system. We compute the Bethe equations from the effective gauged linear sigma model on S^2 with target space the ADHM instanton moduli space, whose mirror computes the Yang-Yang function of gl(N) ILW. The quantum Hamiltonians are given by the local chiral ring observables of the six-dimensional gauge theory. As particular cases, these provide the gl(N) Benjamin-Ono and Korteweg-de Vries quantum Hamiltonians. In the four dimensional limit, we identify the local chiral ring observables with the conserved charges of Heisenberg plus W_N algebrae, thus providing a gauge theoretical proof of AGT correspondence.

Giulio Bonelli; Antonio Sciarappa; Alessandro Tanzini; Petr Vasko

2014-05-07T23:59:59.000Z

69

Imaging  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary)morphinanInformation Desert Southwest Region service area.Portaldefault Sign In About |Imaging Imaging Print

70

Imaging  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-SeriesFlickr FlickrGuidedCH2MLLCBasicsScience atIanIgorIlyaBuildingImaging Print

71

Imaging  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-SeriesFlickr FlickrGuidedCH2MLLCBasicsScience atIanIgorIlyaBuildingImaging

72

Estimating biodiversity of dry forests and coral reefs with hyperspectral data: a NASA EPSCOR project at UPRM  

E-Print Network [OSTI]

Estimating biodiversity of dry forests and coral reefs with hyperspectral data: a NASA EPSCOR and modelsensing and field data to assess and model components of ecosystem biodiversity · Utilize hyperspectral service in PR and PR department ofp Natural Resources #12;What is ecosystem biodiversity ?biodiversity ? D

Gilbes, Fernando

73

Molecular beam epitaxy growth and characterization of type-II InAs/GaSb strained layer superlattices for long-wave infrared detection  

E-Print Network [OSTI]

. Sharma, and S. Krishna Center for High Technology Materials, University of New Mexico, 1313 Goddard St SE, Albuquerque, New Mexico 87106 S. J. Lee and S. K. Noh Korea Research Institute Standards and Science (KRISS imaging. It includes satellite-based surveillance, atmo- spheric pollution probes, and astrophysical

New Mexico, University of

74

Hyperspectral monitoring of chemically sensitive plant Danielle A. Simmons, John P. Kerekes and Nina G. Raqueno  

E-Print Network [OSTI]

. Harnessing plants as bio-sensors allows for distributed sensing without a power supply. Monitoring the bioHyperspectral monitoring of chemically sensitive plant sentinels Danielle A. Simmons, John P ABSTRACT Automated detection of chemical threats is essential for an early warning of a potential attack

Kerekes, John

75

USING HYPERSPECTRAL IMAGERY TO ASSIST FEDERAL FOREST MONITORING AND RESTORATION PROJECTS IN THE SOUTHERN ROCKY MOUNTAINS, COLORADO  

E-Print Network [OSTI]

Hyperspectral imagery and the corresponding ability to conduct analysis below the pixel level have tremendous potential to aid in landcover monitoring. During large ecosystem restoration projects, being able to monitor ...

Wamser, William Kyle

2012-12-31T23:59:59.000Z

76

Change detection for hyperspectral sensing in a transformed low-dimensional space  

SciTech Connect (OSTI)

We present an approach to the problem of change in hyperspectral imagery that operates in a two-dimensional space. The coordinates in the space are related to Mahalanobis distances for the combined ('stacked') data and the individual hyperspectral scenes. Although it is only two-dimensional, this space is rich enough to include several well-known change detection algorithms, including the hyperbolic anomalous change detector, based on Gaussian scene clutter, and the EC-uncorrelated detector based on heavy-tailed (elliptically contoured) clutter. Because this space is only two-dimensional, adaptive machine learning methods can produce new change detectors without being stymied by the curse of dimensionality. We investigate, in particular, the utility of the support vector machine for learning boundaries in this 2-D space, and compare the performance of the resulting nonlinearly adaptjve detector to change detectors that have themselves shown good performance.

Foy, Bernard R [Los Alamos National Laboratory; Theiler, James [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

77

Long Wave Breaking Effects on Fringing Reefs  

E-Print Network [OSTI]

. The smoothing to the spectrum is performed using Bartlett averaging: the data set is broken up into a set of twenty-three realizations each consisting of 1024 individual points, and then these sets are averaged together. With a sampling time step of 0... the Nyquist frequency, or 5 Hz. An example plot of the smoothed spectrum of instantaneous dissipation events can be seen in Figure 11. The three gages chosen as key points of interest in the system are gages six, eight, and ten. Gage six is located half...

Goertz, John 1985-

2012-12-12T23:59:59.000Z

78

Design and Implementation of a Parallel Heterogeneous Algorithm for Hyperspectral Image Analysis Using HeteroMPI  

E-Print Network [OSTI]

-based networks such as ATMs, as well as distributed service and support, especially for large file systems and objects in the air, land and water on the basis of the unique reflectance patterns that result from of this technology require timely responses for swift decisions which depend upon high computing performance

Plaza, Antonio J.

79

Active hyperspectral imaging using a quantum cascade laser (QCL) array and digital-pixel focal  

E-Print Network [OSTI]

, D. L. Sivco, and A. Y. Cho, "Quantum cascade lasers," Phys. Today 55(5), 34 (2002). 13. Daylight Solutions, Inc., www.daylightsolutions.com; Block Engineering LLC, www.blockeng.com. 14. B. G. Lee, M. A

Capasso, Federico

80

Project 1640: the world's first ExAO coronagraphic hyperspectral imager for comparative planetary science  

E-Print Network [OSTI]

Zimmermang a American Museum of Natural History, Dept. of Astrophysics, Central Park West at 79th Street, New of inquiry. Exoplanetary science (the study of planets exterior to the solar system), which is nearly two These measurements and associated survey work have transformed our view of the solar neighborhood. It is full

Note: This page contains sample records for the topic "hyperspectral imaging long-wave" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Hyperspectral Imaging At Fish Lake Valley Area (Littlefield & Calvin, 2010)  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:GreerHiCalifornia: Energythe Second Workshop onDepositedHyperionOpen|

82

Hyperspectral Imaging At Dixie Valley Geothermal Area (Kennedy-Bowdoin, Et  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:PhotonHolyName HousingIIIDrive Ltd Jump to:Al., 2003) | Open

83

Hyperspectral Imaging At Dixie Valley Geothermal Area (Nash & D., 1997) |  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:PhotonHolyName HousingIIIDrive Ltd Jump to:Al., 2003) | OpenOpen

84

Hyperspectral Imaging At Salton Sea Area (Reath, Et Al., 2010) | Open  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's Heat Jump to:PhotonHolyName HousingIIIDrive Ltd Jump to:Al., 2003) |Energy

85

Environmental Monitoring with Airborne Hyperspectral Imagery (HAB Prediction)  

E-Print Network [OSTI]

) in the western basin of Lake Erie. Blooms form, spread and disappear within a four to eight week time period of the cause. MODIS satellite image of Lake Erie algal bloom. August 13, 2009. #12;Proposed Work This project of the infrequent overpasses and the blooms quick spread. Blooms recent reoccurred in the Great Lakes

86

Automated Identification of Endmembers from Hyperspectral Data Using Mathematical Morphology  

E-Print Network [OSTI]

analysis and pattern recognition technique that has proved to be especially well suited to segment images Informática, Universidad de Extremadura, Spain. b Global Science and Technology. NASA/Goddard Space Flight with irregular and complex shapes, but has rarely been applied to the classification/segmentation of multivariate

Plaza, Antonio J.

87

VEGETATION COVER ANALYSIS OF HAZARDOUS WASTE SITES IN UTAH AND ARIZONA USING HYPERSPECTRAL REMOTE SENSING  

SciTech Connect (OSTI)

Remote sensing technology can provide a cost-effective tool for monitoring hazardous waste sites. This study investigated the usability of HyMap airborne hyperspectral remote sensing data (126 bands at 2.3 x 2.3 m spatial resolution) to characterize the vegetation at U.S. Department of Energy uranium processing sites near Monticello, Utah and Monument Valley, Arizona. Grass and shrub species were mixed on an engineered disposal cell cover at the Monticello site while shrub species were dominant in the phytoremediation plantings at the Monument Valley site. The specific objectives of this study were to: (1) estimate leaf-area-index (LAI) of the vegetation using three different methods (i.e., vegetation indices, red-edge positioning (REP), and machine learning regression trees), and (2) map the vegetation cover using machine learning decision trees based on either the scaled reflectance data or mixture tuned matched filtering (MTMF)-derived metrics and vegetation indices. Regression trees resulted in the best calibration performance of LAI estimation (R{sup 2} > 0.80). The use of REPs failed to accurately predict LAI (R{sup 2} < 0.2). The use of the MTMF-derived metrics (matched filter scores and infeasibility) and a range of vegetation indices in decision trees improved the vegetation mapping when compared to the decision tree classification using just the scaled reflectance. Results suggest that hyperspectral imagery are useful for characterizing biophysical characteristics (LAI) and vegetation cover on capped hazardous waste sites. However, it is believed that the vegetation mapping would benefit from the use of 1 higher spatial resolution hyperspectral data due to the small size of many of the vegetation patches (< 1m) found on the sites.

Serrato, M.; Jungho, I.; Jensen, J.; Jensen, R.; Gladden, J.; Waugh, J.

2012-01-17T23:59:59.000Z

88

Multi- and Hyper-Spectral Sensing for Autonomous Ground Vehicle Navigation  

SciTech Connect (OSTI)

Robotic vehicles that navigate autonomously are hindered by unnecessary avoidance of soft obstacles, and entrapment by potentially avoidable obstacles. Existing sensing technologies fail to reliably distinguish hard obstacles from soft obstacles, as well as impassable thickets and other sources of entrapment. Automated materials classification through advanced sensing methods may provide a means to identify such obstacles, and from their identity, to determine whether they must be avoided. Multi- and hyper-spectral electro-optic sensors are used in remote sensing applications to classify both man-made and naturally occurring materials on the earth's surface by their reflectance spectra. The applicability of this sensing technology to obstacle identification for autonomous ground vehicle navigation is the focus of this report. The analysis is restricted to system concepts in which the multi- or hyper-spectral sensor is on-board the ground vehicle, facing forward to detect and classify obstacles ahead of the vehicle. Obstacles of interest include various types of vegetation, rocks, soils, minerals, and selected man-made materials such as paving asphalt and concrete.

FOGLER, ROBERT J.

2003-06-01T23:59:59.000Z

89

Near infrared spectral imaging of explosives using a tunable laser source  

SciTech Connect (OSTI)

Diffuse reflectance near infrared hyperspectral imaging is an important analytical tool for a wide variety of industries, including agriculture consumer products, chemical and pharmaceutical development and production. Using this technique as a method for the standoff detection of explosive particles is presented and discussed. The detection of the particles is based on the diffuse reflectance of light from the particle in the near infrared wavelength range where CH, NH, OH vibrational overtones and combination bands are prominent. The imaging system is a NIR focal plane array camera with a tunable OPO/laser system as the illumination source. The OPO is programmed to scan over a wide spectral range in the NIR and the camera is synchronized to record the light reflected from the target for each wavelength. The spectral resolution of this system is significantly higher than that of hyperspectral systems that incorporate filters or dispersive elements. The data acquisition is very fast and the entire hyperspectral cube can be collected in seconds. A comparison of data collected with the OPO system to data obtained with a broadband light source with LCTF filters is presented.

Klunder, G L; Margalith, E; Nguyen, L K

2010-03-26T23:59:59.000Z

90

Hyperspectral Aquatic Radiative Transfer Modeling Using a High-Performance Cluster Computing-Based Approach  

SciTech Connect (OSTI)

Abstract For aquatic studies, radiative transfer (RT) modeling can be used to compute hyperspectral above-surface remote sensing reflectance that can be utilized for inverse model development. Inverse models can provide bathymetry and inherent-and bottom-optical property estimation. Because measured oceanic field/organic datasets are often spatio-temporally sparse, synthetic data generation is useful in yielding sufficiently large datasets for inversion model development; however, these forward-modeled data are computationally expensive and time-consuming to generate. This study establishes the magnitude of wall-clock-time savings achieved for performing large, aquatic RT batch-runs using parallel computing versus a sequential approach. Given 2,600 simulations and identical compute-node characteristics, sequential architecture required ~100 hours until termination, whereas a parallel approach required only ~2.5 hours (42 compute nodes) a 40x speed-up. Tools developed for this parallel execution are discussed.

Filippi, Anthony M [ORNL; Bhaduri, Budhendra L [ORNL; Naughton, III, Thomas J [ORNL; King, Amy L [ORNL; Scott, Stephen L [ORNL; Guneralp, Inci [Texas A& M University

2012-01-01T23:59:59.000Z

91

Hyperspectral Aquatic Radiative Transfer Modeling Using a High-Performance Cluster Computing Based Approach  

SciTech Connect (OSTI)

For aquatic studies, radiative transfer (RT) modeling can be used to compute hyperspectral above-surface remote sensing reflectance that can be utilized for inverse model development. Inverse models can provide bathymetry and inherent- and bottom-optical property estimation. Because measured oceanic field/organic datasets are often spatio-temporally sparse, synthetic data generation is useful in yielding sufficiently large datasets for inversion model development; however, these forward-modeled data are computationally expensive and time-consuming to generate. This study establishes the magnitude of wall-clock-time savings achieved for performing large, aquatic RT batch-runs using parallel computing versus a sequential approach. Given 2,600 simulations and identical compute-node characteristics, sequential architecture required {approx}100 hours until termination, whereas a parallel approach required only {approx}2.5 hours (42 compute nodes) - a 40x speed-up. Tools developed for this parallel execution are discussed.

Fillippi, Anthony [Texas A& M University; Bhaduri, Budhendra L [ORNL; Naughton, III, Thomas J [ORNL; King, Amy L [ORNL; Scott, Stephen L [ORNL; Guneralp, Inci [Texas A& M University

2012-01-01T23:59:59.000Z

92

The MARTE VNIR Imaging Spectrometer Experiment: Design and Analysis  

E-Print Network [OSTI]

We report on the design, operation, and data analysis methods employed on the VNIR imaging spectrometer instrument that was part of the Mars Astrobiology Research and Technology Experiment (MARTE). The imaging spectrometer is a hyperspectral scanning pushbroom device sensitive to VNIR wavelengths from 400-1000 nm. During the MARTE project, the spectrometer was deployed to the Rio Tinto region of Spain. We analyzed subsets of 3 cores from Rio Tinto using a new band modeling technique. We found most of the MARTE drill cores to contain predominantly goethite, though spatially coherent areas of hematite were identified in Core 23. We also distinguished non Fe-bearing minerals that were subsequently analyzed by X-ray diffraction (XRD) and found to be primarily muscovite. We present drill core maps that include spectra of goethite, hematite, and non Fe-bearing minerals.

Brown, Adrian J; Dunagan, Stephen

2014-01-01T23:59:59.000Z

93

Infrared near-field imaging and spectroscopy based on thermal or synchrotron radiation  

SciTech Connect (OSTI)

We demonstrate the coupling of a scattering near-field scanning optical microscope combined with a Fourier transform infrared spectrometer. The set-up operates using either the near-field thermal emission from the sample itself, which is proportional to the electromagnetic local density of states, or with an external infrared synchrotron source, which is broadband and highly brilliant. We perform imaging and spectroscopy measurements with sub-wavelength spatial resolution in the mid-infrared range on surfaces made of silicon carbide and gold and demonstrate the capabilities of the two configurations for super-resolved near-field mid-infrared hyperspectral imaging and that the simple use of a properly chosen bandpass filter on the detector allows one to image the spatial distribution of materials with sub-wavelength resolution by studying the contrast in the near-field images.

Peragut, Florian; De Wilde, Yannick, E-mail: yannick.dewilde@espci.fr [ESPCI ParisTech, PSL Research University, CNRS, Institut Langevin, 1 rue Jussieu, F-75005, Paris (France); Brubach, Jean-Blaise; Roy, Pascale [Société Civile Synchrotron SOLEIL, L'Orme des Merisiers, St-Aubin BP48, 91192 Gif-sur-Yvette Cedex (France)

2014-06-23T23:59:59.000Z

94

Long-wave models of thin film fluid dynamics  

E-Print Network [OSTI]

Centre manifold techniques are used to derive rationally a description of the dynamics of thin films of fluid. The derived model is based on the free-surface $\\eta(x,t)$ and the vertically averaged horizontal velocity $\\avu(x,t)$. The approach appears to converge well and has significant differences from conventional depth-averaged models.

A. J. Roberts

1994-11-04T23:59:59.000Z

95

Category:Long-Wave Infrared | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160Benin: EnergyBostonFacilityCascadeJump to:Lists Jump to: navigation, search

96

Geothermal Exploration with Visible through Long Wave Infrared...  

Open Energy Info (EERE)

be mapped on the surface using the LWIR. Many of the aforementioned minerals have absorption features that overlap each other in other parts of the electromagnetic spectrum....

97

Estimating radiological background using imaging spectroscopy  

SciTech Connect (OSTI)

Optical imaging spectroscopy is investigated as a method to estimate radiological background by spectral identification of soils, sediments, rocks, minerals and building materials derived from natural materials and assigning tabulated radiological emission values to these materials. Radiological airborne surveys are undertaken by local, state and federal agencies to identify the presence of radiological materials out of regulatory compliance. Detection performance in such surveys is determined by (among other factors) the uncertainty in the radiation background; increased knowledge of the expected radiation background will improve the ability to detect low-activity radiological materials. Radiological background due to naturally occurring radiological materials (NORM) can be estimated by reference to previous survey results, use of global 40K, 238U, and 232Th (KUT) values, reference to existing USGS radiation background maps, or by a moving average of the data as it is acquired. Each of these methods has its drawbacks: previous survey results may not include recent changes, the global average provides only a zero-order estimate, the USGS background radiation map resolutions are coarse and are accurate only to 1 km – 25 km sampling intervals depending on locale, and a moving average may essentially low pass filter the data to obscure small changes in radiation counts. Imaging spectroscopy from airborne or spaceborne platforms can offer higher resolution identification of materials and background, as well as provide imaging context information. AVIRIS hyperspectral image data is analyzed using commercial exploitation software to determine the usefulness of imaging spectroscopy to identify qualitative radiological background emissions when compared to airborne radiological survey data.

Bernacki, Bruce E.; Schweppe, John E.; Stave, Sean C.; Jordan, David V.; Kulisek, Jonathan A.; Stewart, Trevor N.; Seifert, Carolyn E.

2014-06-13T23:59:59.000Z

98

Test Images  

E-Print Network [OSTI]

Test Images. I hope to have a set of test images for the course soon. Some images are available now; some will have to wait until I can find another 100-200

99

Image Analysis  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Recognition Image Analysis and Recognition Snapshot1498121slicesqResedison Fibers permeating imaged material (Courtesy: Bale, Loring, Perciano and Ushizima) Imagery coming from...

100

Concentric multi-reflection lenses for ultra-compact imaging systems  

E-Print Network [OSTI]

near infrared to long wave infrared broadband four- reflectionreflection CMR lens. This lens design is proposed for use with dual-band near- infrared (

Tremblay, Eric Julian

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hyperspectral imaging long-wave" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


101

People Images  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

People Images People Images Several hundred of the 1700 U.S. scientists contributing to the LHC accelerator and experiments gathered in June 2008 in CERN's building 40 CE0252 Joel...

102

Image alignment  

DOE Patents [OSTI]

Disclosed is a method and device for aligning at least two digital images. An embodiment may use frequency-domain transforms of small tiles created from each image to identify substantially similar, "distinguishing" features within each of the images, and then align the images together based on the location of the distinguishing features. To accomplish this, an embodiment may create equal sized tile sub-images for each image. A "key" for each tile may be created by performing a frequency-domain transform calculation on each tile. A information-distance difference between each possible pair of tiles on each image may be calculated to identify distinguishing features. From analysis of the information-distance differences of the pairs of tiles, a subset of tiles with high discrimination metrics in relation to other tiles may be located for each image. The subset of distinguishing tiles for each image may then be compared to locate tiles with substantially similar keys and/or information-distance metrics to other tiles of other images. Once similar tiles are located for each image, the images may be aligned in relation to the identified similar tiles.

Dowell, Larry Jonathan

2014-04-22T23:59:59.000Z

103

Computing Images  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Computing Images The interior of an automated tape library in Brookhaven's RHIC and ATLAS Computing Facility. Brookhaven engineers in the RHIC and ATLAS Computing Facility....

104

Imaging bolometer  

DOE Patents [OSTI]

Radiation-hard, steady-state imaging bolometer. A bolometer employing infrared (IR) imaging of a segmented-matrix absorber of plasma radiation in a cooled-pinhole camera geometry is described. The bolometer design parameters are determined by modeling the temperature of the foils from which the absorbing matrix is fabricated by using a two-dimensional time-dependent solution of the heat conduction equation. The resulting design will give a steady-state bolometry capability, with approximately 100 Hz time resolution, while simultaneously providing hundreds of channels of spatial information. No wiring harnesses will be required, as the temperature-rise data will be measured via an IR camera. The resulting spatial data may be used to tomographically investigate the profile of plasmas.

Wurden, Glen A. (Los Alamos, NM)

1999-01-01T23:59:59.000Z

105

Imaging bolometer  

DOE Patents [OSTI]

Radiation-hard, steady-state imaging bolometer is disclosed. A bolometer employing infrared (IR) imaging of a segmented-matrix absorber of plasma radiation in a cooled-pinhole camera geometry is described. The bolometer design parameters are determined by modeling the temperature of the foils from which the absorbing matrix is fabricated by using a two-dimensional time-dependent solution of the heat conduction equation. The resulting design will give a steady-state bolometry capability, with approximately 100 Hz time resolution, while simultaneously providing hundreds of channels of spatial information. No wiring harnesses will be required, as the temperature-rise data will be measured via an IR camera. The resulting spatial data may be used to tomographically investigate the profile of plasmas. 2 figs.

Wurden, G.A.

1999-01-19T23:59:59.000Z

106

Nanometric Optical Imaging Frontiers in Chemical Imaging  

E-Print Network [OSTI]

Nanometric Optical Imaging Frontiers in Chemical Imaging Seminar Series Presented by... Professor growing field which has provided for nanometric optical imaging in the near-field. Even though a variety of techniques are being developed with nanometric optical imaging potential, near-field optics remains the most

107

Split image optical display  

DOE Patents [OSTI]

A video image is displayed from an optical panel by splitting the image into a plurality of image components, and then projecting the image components through corresponding portions of the panel to collectively form the image. Depth of the display is correspondingly reduced.

Veligdan, James T. (Manorville, NY)

2007-05-29T23:59:59.000Z

108

Femtosecond Transient Imaging  

E-Print Network [OSTI]

This thesis proposes a novel framework called transient imaging for image formation and scene understanding through impulse illumination and time images. Using time-of-flight cameras and multi-path analysis of global light ...

Kirmani, Ahmed (Ghulam Ahmed)

2010-01-01T23:59:59.000Z

109

Tracking Elevated Pollution Layers with a Newly Developed Hyperspectral Sun/Sky Spectrometer (4STAR): Results from the TCAP 2012 and 2013 Campaigns  

SciTech Connect (OSTI)

Total columnar amounts of water vapor, nitrogen dioxide (NO2) and ozone (O3) are derived from a newly developed, hyperspectral airborne sun-sky spectrometer (4STAR) for the first time during the two intensive phases of the Two Column Aerosol Project (TCAP) in summer 2012 and winter 2013 aboard the DOE G-1 aircraft. We compare results with coincident measurements. We find 0.045 g/cm2 (4.2%) negative bias and 0.28 g/cm2 (26.3%) root-mean-square (RMS) difference in water vapor layer comparison with in-situ hygrometer, and an overall RMS difference of 1.28 g/m3 (38%) water vapor amount in profile by profile comparisons, with differences distributed evenly around zero in most cases. The RMS differences for O3 values average to 3%, with a 1% negative bias for 4STAR compared with the spaceborne Ozone Measuring Instrument (OMI) along the aircraft flight-track for 14 flights during both TCAP phases. Ground-based comparisons with the Pandora spectrometer system at the Goddard Space Flight Center (GSFC), Greenbelt, Maryland showed excellent agreement between the instruments for both O3 and NO2, further emphasizing 4STAR’s new capabilities. During the summer phase, we have succeeded in identifying variations in elevated pollution layers corresponding to urban pollution outflow and transported biomass burning. This was done using clustering analysis of the retrieved products (e.g. Ångstrom exponent, NO2 and columnar water vapor), and was confirmed by aerosol type identification by HSRL2 aboard the NASA B-200 aircraft. These newly demonstrated 4STAR capabilities are expected to be instrumental in improving our understanding of atmospheric composition variability and aerosol-trace-gas interactions; they open new horizons and opportunities in airborne sunphotometry.

Segal Rozenhaimer, Michal; Russell, P. B.; Schmid, Beat; Redemann, Jens; Livingston, J. M.; Flynn, Connor J.; Johnson, Roy R.; Dunagan, Stephen; Shinozuka, Yohei; Herman, J. R.; Cede, A.; Abuhassan, N.; Comstock, Jennifer M.; Hubbe, John M.; Zelenyuk, Alla; Wilson, Jacqueline M.

2014-03-16T23:59:59.000Z

110

Imaging Sciences Workshop Proceedings  

SciTech Connect (OSTI)

This report contains the proceedings of the Imaging Sciences Workshop sponsored by C.A.S.LS., the Center for Advanced Signal & Image Sciences. The Center, established primarily to provide a forum where researchers can freely exchange ideas on the signal and image sciences in a comfortable intellectual environment, has grown over the last two years with the opening of a Reference Library (located in Building 272). The Technical Program for the 1996 Workshop include a variety of efforts in the Imaging Sciences including applications in the Microwave Imaging, highlighted by the Micro-Impulse Radar (MIR) system invented at LLNL, as well as other applications in this area. Special sessions organized by various individuals in Speech, Acoustic Ocean Imaging, Radar Ocean Imaging, Ultrasonic Imaging, and Optical Imaging discuss various applica- tions of real world problems. For the more theoretical, sessions on Imaging Algorithms and Computed Tomography were organized as well as for the more pragmatic featuring a session on Imaging Systems.

Candy, J.V.

1996-11-21T23:59:59.000Z

111

NMR imaging of materials  

SciTech Connect (OSTI)

Interest in the area of NMR imaging has been driven by the widespread success of medical imaging. John M. Listerud of the Pendergrass Diagnostic Research Laboratories, Steven W. Sinton of Lockheed, and Gary P. Drobny of the University of Washington describe the principal image reconstruction methods, factors limiting spatial resolution, and applications of imaging to the study of materials.

Listerud, J.M.; Sinton, S.W.; Drobny, G.P.

1989-01-01T23:59:59.000Z

112

Seismic Imaging and Monitoring  

SciTech Connect (OSTI)

I give an overview of LANL's capability in seismic imaging and monitoring. I present some seismic imaging and monitoring results, including imaging of complex structures, subsalt imaging of Gulf of Mexico, fault/fracture zone imaging for geothermal exploration at the Jemez pueblo, time-lapse imaging of a walkway vertical seismic profiling data for monitoring CO{sub 2} inject at SACROC, and microseismic event locations for monitoring CO{sub 2} injection at Aneth. These examples demonstrate LANL's high-resolution and high-fidelity seismic imaging and monitoring capabilities.

Huang, Lianjie [Los Alamos National Laboratory

2012-07-09T23:59:59.000Z

113

Ground-based Technologies for Cotton Root Rot Control  

E-Print Network [OSTI]

. The effects of multiple plant stressors on the accuracy of this technique are unknown. A similar classification process was done using hyperspectral images by Yang et al. (2010). Their study showed that both hyperspectral and multispectral methods could...

Cribben, Curtis D

2013-04-24T23:59:59.000Z

114

Under consideration for publication in J. Fluid Mech. 1 Long-wave Dynamics of an Inextensible  

E-Print Network [OSTI]

, is essential to a wide range of cellular functions partly because the membrane regulates the transport of par 2013) electric fields. Negative membrane tension and the ion currents in the diffuse layers near by the ion currents near the membrane (Lacoste et al. 2007, 2009; Ziebert et al. 2010; Ziebert & Lacoste 2010

Young, Yuan N.

115

Visco-potential free-surface flows and long wave modelling  

E-Print Network [OSTI]

waves on deep water. What is less known is that Boussinesq studied this effect as well [Bou95]. In this particular case they both showed that d dt = -2k2 , (1) where denotes the wave amplitude, the kinematic of viscous effects for water waves has been observed in various experimental studies. For example, in [ZG7

Paris-Sud XI, Université de

116

570 BIOCHIMICA ET BIOPHYSICA ACTA A LONG-WAVE ABSORBING FORM OF CHLOROPHYLL a RESPONSIBLE  

E-Print Network [OSTI]

Chlorella cells are ruptured at pH 4.6 by sonication in air, its absorption spectrum can be best explained Chlorella cells at 77 °K, may be due to increased fluorescence efficiency of Chl a 693 at low temperature to perform light reactions I and II. In the present work, we ruptured Chlorella cells by sonication

Govindjee

117

A numerical investigation of long waves in the atmosphere produced by flow over various mountain profiles  

E-Print Network [OSTI]

. The wavelengths range from 2000 to 7000 km. With sinusoidal initial streaulines, a study is made nf the ef- fect of a mountain ridge placed at different positions relative to the initial flow. This experiment demonstrates the blocking and splitting action... Upstream from the Trough of the Initial Streamlines. 45 16c. Case Xllc - Pattern of Vorticity after Three Days with the Mountain Placed at the Ridge of the Initial Streamlines. 17. Case XIII - Pattern of Positive Vorticity after Three Days. 48 LIST...

Collins, Ralph Warren

1968-01-01T23:59:59.000Z

118

Nonlinear Interactions between Longs Waves in a Two-Layer Fluid  

E-Print Network [OSTI]

(Cacchoine et al., 1995); coast of Surinam; the Persian Gulf (Soltanpour et al., 2010)). Generally, the immediate effect of cohesive sediments on the surface waves has been that of very strong damping, as reported by Wells & Coleman (1981). However...

Tahvildari, Navid

2012-02-14T23:59:59.000Z

119

Spontaneous breaking of symmetry of the gravitons of the long wave spectrum in the early Universe  

E-Print Network [OSTI]

It is shown that nonlinear terms in equations of gravitons on the background of curved space-time of the expanding Universe can solve the problem of the negative square of the effective mass formally arising in linear approximation for gravitons. Similar to well known spontaneous breaking of symmetry in Goldstone model one must take another vacuum so that nonzero vacuum expectation value of the quantized graviton field leads to change of spectrum for gravitons. There appears two graviton fields, one with the positive mass, another with the zero mass. Energy density and the density of particles created by gravitation of the expanding Universe are calculated for some special cases of the scale factor. Numerical of result are obtained for the dust universe case.

A. A. Grib

2009-05-07T23:59:59.000Z

120

Variability in Long-Wave Runup as a Function of Nearshore Bathymetric Features  

E-Print Network [OSTI]

and can be highly variable. The dynamic environment along the coast requires the thorough analysis of offshore features (Plant and Holman, 1997; Wang and Davis, 1998) which can be obtained through Light Detection and Ranging (lidar) (Brock et al., 2002... the movement of the sandbar to growth ratio. The results show that the sandbars moved onshore when the significant wave height was less than 1 m and offshore for wave heights greater than 1 m (Plant and Holman, 1997). The magnitude of the sandbar response...

Dunkin, Lauren M.

2011-08-08T23:59:59.000Z

Note: This page contains sample records for the topic "hyperspectral imaging long-wave" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


121

Hollow Core Fiber Optics for Mid-Wave and Long-Wave Infrared Spectroscopy  

E-Print Network [OSTI]

angle cleaving or anti- reflection coatings to minimize laser feedback effects, and effectively transmit deeper into the infrared. This paper focuses on recent developments in hollow fiber technology geared

122

Long-Wave Infrared At Coso Geothermal Area (1968-1971) | Open Energy  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to:46 - 429Lacey,(Monaster AndLittletown, Arizona:Lockland,LIPA

123

Imaging in radiotherapy  

SciTech Connect (OSTI)

The text contains details of recording media, image quality, sensitometry, processing and equipment used in radiotherapy for imaging. It reflects part of the syllabus for the College of Radiographers.

Taylor, J.

1987-01-01T23:59:59.000Z

124

User Science Images  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Image: OBrianImageBig.png | png | 5 MB SlavaFull.png FES: Small Scale Experimental Plasma Research October 21, 2010 | Author(s): Vyacheslav Lukin (NRL) | Category: Fusion Energy |...

125

Dual Plane Imaging  

E-Print Network [OSTI]

We outline a technique called Dual Plane Imaging which should significantly improve images which would otherwise be blurred due to atmospheric turbulence. The technique involves capturing all the spatial, directional and temporal information about the arriving photons and processing the data afterwards to produce the sharpened images. The technique has particular relevance for imaging at around 400-1000nm on extremely large telescopes (ELTs).

Parry, Ian

2015-01-01T23:59:59.000Z

126

Consumers' Image of Broilers.  

E-Print Network [OSTI]

which they feel the product possesses. This research was designed to determine consumers' favorable and unfavorable images as to broilers, both in making purchases in stores and in serving them as a meat dish. These images, summarized briefly here... count. The Preparation and Cooking Image: The h0u.l wife's image of broilers focuses on one metliotl- frying. The major deterrent to preparing othci dishes was that these are either too difficult or canno* be prepared satisfactorily...

Courtenay, Henry V.; Branson, Robert E.

1962-01-01T23:59:59.000Z

127

Imaging with Scattered Neutrons  

E-Print Network [OSTI]

We describe a novel experimental technique for neutron imaging with scattered neutrons. These scattered neutrons are of interest for condensed matter physics, because they permit to reveal the local distribution of incoherent and coherent scattering within a sample. In contrast to standard attenuation based imaging, scattered neutron imaging distinguishes between the scattering cross section and the total attenuation cross section including absorption. First successful low-noise millimeter-resolution images by scattered neutron radiography and tomography are presented.

H. Ballhausen; H. Abele; R. Gaehler; M. Trapp; A. Van Overberghe

2006-10-30T23:59:59.000Z

128

Medical imaging systems  

DOE Patents [OSTI]

A medical imaging system provides simultaneous rendering of visible light and diagnostic or functional images. The system may be portable, and may include adapters for connecting various light sources and cameras in open surgical environments or laparascopic or endoscopic environments. A user interface provides control over the functionality of the integrated imaging system. In one embodiment, the system provides a tool for surgical pathology.

Frangioni, John V

2013-06-25T23:59:59.000Z

129

Magnetic Imaging Wolfgang Kuch  

E-Print Network [OSTI]

Magnetic Imaging Wolfgang Kuch Freie Universit¨at Berlin, Institut f¨ur Experimentalphysik, Arnimallee 14, 14195 Berlin, Germany kuch@physik.fu-berlin.de Abstract. Imaging of magnetic domains has- ern techniques is used nowadays routinely for magnetic imaging of magnetic ma- terials

Kuch, Wolfgang

130

Human Functional Brain Imaging  

E-Print Network [OSTI]

Human Functional Brain Imaging 1990­2009 September 2011 Portfolio Review Summary Brain Imaging #12 Dale ­ one of our first Trustees. Understanding the brain remains one of our key strategic aims today three-fold: · to identify the key landmarks and influences on the human functional brain imaging

Rambaut, Andrew

131

Human Functional Brain Imaging  

E-Print Network [OSTI]

Human Functional Brain Imaging 1990­2009 September 2011 Portfolio Review #12;2 | Portfolio Review: Human Functional Brain ImagingThe Wellcome Trust is a charity registered in England and Wales, no's role in supporting human functional brain imaging and have informed `our' speculations for the future

Rambaut, Andrew

132

Near-electrode imager  

DOE Patents [OSTI]

An apparatus, near-electrode imager, for employing nuclear magnetic resonance imaging to provide in situ measurements of electrochemical properties of a sample as a function of distance from a working electrode. The near-electrode imager uses the radio frequency field gradient within a cylindrical toroid cavity resonator to provide high-resolution nuclear magnetic resonance spectral information on electrolyte materials.

Rathke, Jerome W. (Lockport, IL); Klingler, Robert J. (Westmont, IL); Woelk, Klaus (Wachtberg, DE); Gerald, II, Rex E. (Brookfield, IL)

2000-01-01T23:59:59.000Z

133

JOURNAL OF MICROELECTROMECHANICAL SYSTEMS, VOL. 19, NO. 6, DECEMBER 2010 1341 Encapsulation of Capacitive Micromachined  

E-Print Network [OSTI]

-time imaging conditions. Index Terms--Fourier spectrometer, hyperspectral imaging, microelectromechanical-systems]­[6]. Espe- cially the progress in optical microelectromechanical systems (MEMS) technology has initiated

Khuri-Yakub, Butrus T. "Pierre"

134

Automation in image cytometry : continuous HCS and kinetic image cytometry  

E-Print Network [OSTI]

OF CALIFORNIA, SAN DIEGO Automation in Image Cytometry:xiv Abstract of Dissertation Automation in Image Cytometry:

Charlot, David J.

2012-01-01T23:59:59.000Z

135

Image compression technique  

DOE Patents [OSTI]

An image is compressed by identifying edge pixels of the image; creating a filled edge array of pixels each of the pixels in the filled edge array which corresponds to an edge pixel having a value equal to the value of a pixel of the image array selected in response to the edge pixel, and each of the pixels in the filled edge array which does not correspond to an edge pixel having a value which is a weighted average of the values of surrounding pixels in the filled edge array which do correspond to edge pixels; and subtracting the filled edge array from the image array to create a difference array. The edge file and the difference array are then separately compressed and transmitted or stored. The original image is later reconstructed by creating a preliminary array in response to the received edge file, and adding the preliminary array to the received difference array. Filling is accomplished by solving Laplace`s equation using a multi-grid technique. Contour and difference file coding techniques also are described. The techniques can be used in a method for processing a plurality of images by selecting a respective compression approach for each image, compressing each of the images according to the compression approach selected, and transmitting each of the images as compressed, in correspondence with an indication of the approach selected for the image. 16 figs.

Fu, C.Y.; Petrich, L.I.

1997-03-25T23:59:59.000Z

136

Video Toroid Cavity Imager  

DOE Patents [OSTI]

A video toroid cavity imager for in situ measurement of electrochemical properties of an electrolytic material sample includes a cylindrical toroid cavity resonator containing the sample and employs NMR and video imaging for providing high-resolution spectral and visual information of molecular characteristics of the sample on a real-time basis. A large magnetic field is applied to the sample under controlled temperature and pressure conditions to simultaneously provide NMR spectroscopy and video imaging capabilities for investigating electrochemical transformations of materials or the evolution of long-range molecular aggregation during cooling of hydrocarbon melts. The video toroid cavity imager includes a miniature commercial video camera with an adjustable lens, a modified compression coin cell imager with a fiat circular principal detector element, and a sample mounted on a transparent circular glass disk, and provides NMR information as well as a video image of a sample, such as a polymer film, with micrometer resolution.

Gerald, Rex E. II; Sanchez, Jairo; Rathke, Jerome W.

2004-08-10T23:59:59.000Z

137

Quantitative luminescence imaging system  

DOE Patents [OSTI]

The QLIS images and quantifies low-level chemiluminescent reactions in an electromagnetic field. It is capable of real time nonperturbing measurement and simultaneous recording of many biochemical and chemical reactions such as luminescent immunoassays or enzyme assays. The system comprises image transfer optics, a low-light level digitizing camera with image intensifying microchannel plates, an image process or, and a control computer. The image transfer optics may be a fiber image guide with a bend, or a microscope, to take the light outside of the RF field. Output of the camera is transformed into a localized rate of cumulative digitalized data or enhanced video display or hard-copy images. The system may be used as a luminescent microdosimetry device for radiofrequency or microwave radiation, as a thermal dosimeter, or in the dosimetry of ultra-sound (sonoluminescence) or ionizing radiation. It provides a near-real-time system capable of measuring the extremely low light levels from luminescent reactions in electromagnetic fields in the areas of chemiluminescence assays and thermal microdosimetry, and is capable of near-real-time imaging of the sample to allow spatial distribution analysis of the reaction. It can be used to instrument three distinctly different irradiation configurations, comprising (1) RF waveguide irradiation of a small Petri-dish-shaped sample cell, (2) RF irradiation of samples in a microscope for the microscopie imaging and measurement, and (3) RF irradiation of small to human body-sized samples in an anechoic chamber.

Erwin, David N. (San Antonio, TX); Kiel, Johnathan L. (San Antonio, TX); Batishko, Charles R. (West Richland, WA); Stahl, Kurt A. (Richland, WA)

1990-01-01T23:59:59.000Z

138

Quantitative luminescence imaging system  

DOE Patents [OSTI]

The QLIS images and quantifies low-level chemiluminescent reactions in an electromagnetic field. It is capable of real time nonperturbing measurement and simultaneous recording of many biochemical and chemical reactions such as luminescent immunoassays or enzyme assays. The system comprises image transfer optics, a low-light level digitizing camera with image intensifying microchannel plates, an image process or, and a control computer. The image transfer optics may be a fiber image guide with a bend, or a microscope, to take the light outside of the RF field. Output of the camera is transformed into a localized rate of cumulative digitalized data or enhanced video display or hard-copy images. The system may be used as a luminescent microdosimetry device for radiofrequency or microwave radiation, as a thermal dosimeter, or in the dosimetry of ultra-sound (sonoluminescence) or ionizing radiation. It provides a near-real-time system capable of measuring the extremely low light levels from luminescent reactions in electromagnetic fields in the areas of chemiluminescence assays and thermal microdosimetry, and is capable of near-real-time imaging of the sample to allow spatial distribution analysis of the reaction. It can be used to instrument three distinctly different irradiation configurations, comprising (1) RF waveguide irradiation of a small Petri-dish-shaped sample cell, (2) RF irradiation of samples in a microscope for the microscopic imaging and measurement, and (3) RF irradiation of small to human body-sized samples in an anechoic chamber. 22 figs.

Erwin, D.N.; Kiel, J.L.; Batishko, C.R.; Stahl, K.A.

1990-08-14T23:59:59.000Z

139

Ferroelectric optical image comparator  

DOE Patents [OSTI]

A ferroelectric optical image comparator has a lead lanthanum zirconate titanate thin-film device which is constructed with a semi-transparent or transparent conductive first electrode on one side of the thin film, a conductive metal second electrode on the other side of the thin film, and the second electrode is in contact with a nonconducting substrate. A photoinduced current in the device represents the dot product between a stored image and an image projected onto the first electrode. One-dimensional autocorrelations are performed by measuring this current while displacing the projected image. 7 figures.

Butler, M.A.; Land, C.E.; Martin, S.J.; Pfeifer, K.B.

1993-11-30T23:59:59.000Z

140

EMSL - image superimposition  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

image-superimposition en Magnesium behavior and structural defects in Mg+ ion implanted silicon carbide. http:www.emsl.pnl.govemslwebpublicationsmagnesium-behavior-and-structu...

Note: This page contains sample records for the topic "hyperspectral imaging long-wave" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


141

image superimposition | EMSL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

superimposition image superimposition Leads No leads are available at this time. Magnesium behavior and structural defects in Mg+ ion implanted silicon carbide. Abstract: As a...

142

Restoring functional PET Images using Anatomical MR Images  

E-Print Network [OSTI]

Restoring functional PET Images using Anatomical MR Images Peter Philipsen, Ulrik Kjems, Peter Toft signal to noise ratio and the low spa­ tial resolution in Positron Emission Tomography (PET) images ? And Positron Emission Tomography (PET) Images? ffl Segmentation of MR Images ­ Extraction of important edges

Mosegaard, Klaus

143

Compression of Computer Graphics Images with Image-Based Rendering  

E-Print Network [OSTI]

Compression of Computer Graphics Images with Image-Based Rendering Ilmi Yoon and Ulrich Neumann information from previously rendered images. Images predicted from prior images are combined with a residual-based rendering tech- nique provides accurate motion prediction and accelerates rendering at the same time

Shahabi, Cyrus

144

DOUBLE MAJORS Imaging Science + ...  

E-Print Network [OSTI]

DOUBLE MAJORS Imaging Science + ... Applied Mathematics Biomedical Sciences Computer Science Undergraduate Research Internships and Cooperative Education (Co-op) (optional) Study Abroad WHY IMAGING SCIENCE Science: BS, MS, PhD Color Science: MS, PhD BS + MS/PhD Combos HUMAN VISION BIO- MEDICAL ASTRO- PHYSICS

Zanibbi, Richard

145

Directional Multiresolution Image Representations  

E-Print Network [OSTI]

) are not necessarily best suited for images. Thus, there is a strong motivation to search for more powerful schemes consid´er´ees comme de bonnes repr´esentations des images na- turelles. Le lien entre les courbelettes et

Do, Minh N.

146

Medical imaging systems  

DOE Patents [OSTI]

A medical imaging system provides simultaneous rendering of visible light and fluorescent images. The system may employ dyes in a small-molecule form that remains in a subject's blood stream for several minutes, allowing real-time imaging of the subject's circulatory system superimposed upon a conventional, visible light image of the subject. The system may also employ dyes or other fluorescent substances associated with antibodies, antibody fragments, or ligands that accumulate within a region of diagnostic significance. In one embodiment, the system provides an excitation light source to excite the fluorescent substance and a visible light source for general illumination within the same optical guide that is used to capture images. In another embodiment, the system is configured for use in open surgical procedures by providing an operating area that is closed to ambient light. More broadly, the systems described herein may be used in imaging applications where a visible light image may be usefully supplemented by an image formed from fluorescent emissions from a fluorescent substance that marks areas of functional interest.

Frangioni, John V. (Wayland, MA)

2012-07-24T23:59:59.000Z

147

Heart imaging method  

DOE Patents [OSTI]

A method for providing an image of the human heart's electrical system derives time-of-flight data from an array of EKG electrodes and this data is transformed into phase information. The phase information, treated as a hologram, is reconstructed to provide an image in one or two dimensions of the electrical system of the functioning heart.

Collins, H. Dale (Richland, WA); Gribble, R. Parks (Richland, WA); Busse, Lawrence J. (Littleton, CO)

1991-01-01T23:59:59.000Z

148

Fluorescent image tracking velocimeter  

DOE Patents [OSTI]

A multiple-exposure fluorescent image tracking velocimeter (FITV) detects and measures the motion (trajectory, direction and velocity) of small particles close to light scattering surfaces. The small particles may follow the motion of a carrier medium such as a liquid, gas or multi-phase mixture, allowing the motion of the carrier medium to be observed, measured and recorded. The main components of the FITV include: (1) fluorescent particles; (2) a pulsed fluorescent excitation laser source; (3) an imaging camera; and (4) an image analyzer. FITV uses fluorescing particles excited by visible laser light to enhance particle image detectability near light scattering surfaces. The excitation laser light is filtered out before reaching the imaging camera allowing the fluoresced wavelengths emitted by the particles to be detected and recorded by the camera. FITV employs multiple exposures of a single camera image by pulsing the excitation laser light for producing a series of images of each particle along its trajectory. The time-lapsed image may be used to determine trajectory and velocity and the exposures may be coded to derive directional information.

Shaffer, Franklin D. (Library, PA)

1994-01-01T23:59:59.000Z

149

Adaptive wiener image restoration kernel  

DOE Patents [OSTI]

A method and device for restoration of electro-optical image data using an adaptive Wiener filter begins with constructing imaging system Optical Transfer Function, and the Fourier Transformations of the noise and the image. A spatial representation of the imaged object is restored by spatial convolution of the image using a Wiener restoration kernel.

Yuan, Ding (Henderson, NV)

2007-06-05T23:59:59.000Z

150

Time encoded radiation imaging  

DOE Patents [OSTI]

The various technologies presented herein relate to detecting nuclear material at a large stand-off distance. An imaging system is presented which can detect nuclear material by utilizing time encoded imaging relating to maximum and minimum radiation particle counts rates. The imaging system is integrated with a data acquisition system that can utilize variations in photon pulse shape to discriminate between neutron and gamma-ray interactions. Modulation in the detected neutron count rates as a function of the angular orientation of the detector due to attenuation of neighboring detectors is utilized to reconstruct the neutron source distribution over 360 degrees around the imaging system. Neutrons (e.g., fast neutrons) and/or gamma-rays are incident upon scintillation material in the imager, the photons generated by the scintillation material are converted to electrical energy from which the respective neutrons/gamma rays can be determined and, accordingly, a direction to, and the location of, a radiation source identified.

Marleau, Peter; Brubaker, Erik; Kiff, Scott

2014-10-21T23:59:59.000Z

151

Polarization transfer NMR imaging  

DOE Patents [OSTI]

A nuclear magnetic resonance (NMR) image is obtained with spatial information modulated by chemical information. The modulation is obtained through polarization transfer from a first element representing the desired chemical, or functional, information, which is covalently bonded and spin-spin coupled with a second element effective to provide the imaging data. First and second rf pulses are provided at first and second frequencies for exciting the imaging and functional elements, with imaging gradients applied therebetween to spatially separate the nuclei response for imaging. The second rf pulse is applied at a time after the first pulse which is the inverse of the spin coupling constant to select the transfer element nuclei which are spin coupled to the functional element nuclei for imaging. In a particular application, compounds such as glucose, lactate, or lactose, can be labeled with .sup.13 C and metabolic processes involving the compounds can be imaged with the sensitivity of .sup.1 H and the selectivity of .sup.13 C.

Sillerud, Laurel O. (Los Alamos, NM); van Hulsteyn, David B. (Santa Fe, NM)

1990-01-01T23:59:59.000Z

152

Nuclear medicine imaging system  

DOE Patents [OSTI]

It is an object of this invention to provide a nuclear imaging system having the versatility to do positron annihilation studies, rotating single or opposed camera gamma emission studies, and orthogonal gamma emission studies. It is a further object of this invention to provide an imaging system having the capability for orthogonal dual multipinhole tomography. It is another object of this invention to provide a nuclear imaging system in which all available energy data, as well as patient physiological data, are acquired simultaneously in list mode.

Bennett, G.W.; Brill, A.B.; Bizais, Y.J.C.; Rowe, R.W.; Zubal, I.G.

1983-03-11T23:59:59.000Z

153

Image portion identification methods, image parsing methods, image parsing systems, and articles of manufacture  

DOE Patents [OSTI]

Image portion identification methods, image parsing methods, image parsing systems, and articles of manufacture are described. According to one embodiment, an image portion identification method includes accessing data regarding an image depicting a plurality of biological substrates corresponding to at least one biological sample and indicating presence of at least one biological indicator within the biological sample and, using processing circuitry, automatically identifying a portion of the image depicting one of the biological substrates but not others of the biological substrates.

Lassahn, Gordon D.; Lancaster, Gregory D.; Apel, William A.; Thompson, Vicki S.

2013-01-08T23:59:59.000Z

154

Photothermal imaging scanning microscopy  

DOE Patents [OSTI]

Photothermal Imaging Scanning Microscopy produces a rapid, thermal-based, non-destructive characterization apparatus. Also, a photothermal characterization method of surface and subsurface features includes micron and nanoscale spatial resolution of meter-sized optical materials.

Chinn, Diane (Pleasanton, CA); Stolz, Christopher J. (Lathrop, CA); Wu, Zhouling (Pleasanton, CA); Huber, Robert (Discovery Bay, CA); Weinzapfel, Carolyn (Tracy, CA)

2006-07-11T23:59:59.000Z

155

JOB OPPORTUNITIES Breast imaging  

E-Print Network [OSTI]

Genitourinary Radiology Head and Neck Radiology Musculoskeletal Radiology Neuroradiology Pediatric RadiologyJOB OPPORTUNITIES Breast imaging Chest Radiology Emergency Radiology Gastrointestinal Radiology Interventional Radiology Nuclear Radiology Radiation Oncology What Can I Do With a Major in... Radiological

Jiang, Huiqiang

156

THERMAL NEUTRON BACKSCATTER IMAGING.  

SciTech Connect (OSTI)

Objects of various shapes, with some appreciable hydrogen content, were exposed to fast neutrons from a pulsed D-T generator, resulting in a partially-moderated spectrum of backscattered neutrons. The thermal component of the backscatter was used to form images of the objects by means of a coded aperture thermal neutron imaging system. Timing signals from the neutron generator were used to gate the detection system so as to record only events consistent with thermal neutrons traveling the distance between the target and the detector. It was shown that this time-of-flight method provided a significant improvement in image contrast compared to counting all events detected by the position-sensitive {sup 3}He proportional chamber used in the imager. The technique may have application in the detection and shape-determination of land mines, particularly non-metallic types.

VANIER,P.; FORMAN,L.; HUNTER,S.; HARRIS,E.; SMITH,G.

2004-10-16T23:59:59.000Z

157

Overview of Image Reconstruction  

SciTech Connect (OSTI)

Image reconstruction (or computerized tomography, etc.) is any process whereby a function, f, on Rn is estimated from empirical data pertaining to its integrals, ∫f(x) dx, for some collection of hyperplanes of dimension k < n. The paper begins with background information on how image reconstruction problems have arisen in practice, and describes some of the application areas of past or current interest; these include radioastronomy, optics, radiology and nuclear medicine, electron microscopy, acoustical imaging, geophysical tomography, nondestructive testing, and NMR zeugmatography. Then the various reconstruction algorithms are discussed in five classes: summation, or simple back-projection; convolution, or filtered back-projection; Fourier and other functional transforms; orthogonal function series expansion; and iterative methods. Certain more technical mathematical aspects of image reconstruction are considered from the standpoint of uniqueness, consistency, and stability of solution. The paper concludes by presenting certain open problems. 73 references. (RWR)

Marr, R.B.

1980-04-01T23:59:59.000Z

158

Reflective optical imaging system  

DOE Patents [OSTI]

An optical system compatible with short wavelength (extreme ultraviolet) radiation comprising four reflective elements for projecting a mask image onto a substrate. The four optical elements are characterized in order from object to image as convex, concave, convex and concave mirrors. The optical system is particularly suited for step and scan lithography methods. The invention increases the slit dimensions associated with ringfield scanning optics, improves wafer throughput and allows higher semiconductor device density.

Shafer, David R. (Fairfield, CT)

2000-01-01T23:59:59.000Z

159

Restoring functional PET Images using Anatomical MR Images  

E-Print Network [OSTI]

Restoring functional PET Images using Anatomical MR Images Peter Alshede Philipsen, Ulrik Kjems,uk,pto,lkh@imm.dtu.dk Abstract In this paper we present a Bayesian method to enhance functional 3D PET images using apriori as a true PET­MR result, and further more show how to obtain the desired information from the MR images. 1

Mosegaard, Klaus

160

E-Print Network 3.0 - airborne gravitational noise Sample Search...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Planetary Science Conference XXXIV, abstract 1887, 2003 FIRST AIRBORNE THERMAL INFRARED HYPERSPECTRAL IMAGING OF A DRY LAKE: REAL- Summary: resolution and sensitivity...

Note: This page contains sample records for the topic "hyperspectral imaging long-wave" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Resonant-cavity-enhanced multispectral infrared photodetectors for monolithic integration on silicon  

E-Print Network [OSTI]

Multispectral infrared (IR) detection has been widely employed for numerous applications including hyperspectral imaging, IR spectroscopy, and target identification. Traditional multispectral detection technology is based ...

Wang, Jianfei, Ph. D. Massachusetts Institute of Technology

2010-01-01T23:59:59.000Z

162

FINAL LAYOUT_ 7-24-13dp.indd  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

multiple bioscience research endeavors. Among these, two are especially noteworthy: microfluidics technology enabling single-cell interrogation, and hyperspectral imaging with...

163

arXiv:1302.4385v1 [stat.ML] 18 Feb 2013  

E-Print Network [OSTI]

Feb 18, 2013 ... Page 1 ... separability means that, for each topic, there exists a word associated only with that topic; see [2, 3]. • In hyperspectral imaging, where ...

2013-02-18T23:59:59.000Z

164

Multispectral imaging probe  

DOE Patents [OSTI]

A multispectral imaging probe delivers a range of wavelengths of excitation light to a target and collects a range of expressed light wavelengths. The multispectral imaging probe is adapted for mobile use and use in confined spaces, and is sealed against the effects of hostile environments. The multispectral imaging probe comprises a housing that defines a sealed volume that is substantially sealed from the surrounding environment. A beam splitting device mounts within the sealed volume. Excitation light is directed to the beam splitting device, which directs the excitation light to a target. Expressed light from the target reaches the beam splitting device along a path coaxial with the path traveled by the excitation light from the beam splitting device to the target. The beam splitting device directs expressed light to a collection subsystem for delivery to a detector.

Sandison, David R. (Moriarty, NM); Platzbecker, Mark R. (Albuquerque, NM); Descour, Michael R. (Tucson, AZ); Armour, David L. (Albuquerque, NM); Craig, Marcus J. (Albuquerque, NM); Richards-Kortum, Rebecca (Austin, TX)

1999-01-01T23:59:59.000Z

165

Multispectral imaging probe  

DOE Patents [OSTI]

A multispectral imaging probe delivers a range of wavelengths of excitation light to a target and collects a range of expressed light wavelengths. The multispectral imaging probe is adapted for mobile use and use in confined spaces, and is sealed against the effects of hostile environments. The multispectral imaging probe comprises a housing that defines a sealed volume that is substantially sealed from the surrounding environment. A beam splitting device mounts within the sealed volume. Excitation light is directed to the beam splitting device, which directs the excitation light to a target. Expressed light from the target reaches the beam splitting device along a path coaxial with the path traveled by the excitation light from the beam splitting device to the target. The beam splitting device directs expressed light to a collection subsystem for delivery to a detector. 8 figs.

Sandison, D.R.; Platzbecker, M.R.; Descour, M.R.; Armour, D.L.; Craig, M.J.; Richards-Kortum, R.

1999-07-27T23:59:59.000Z

166

Variable waveband infrared imager  

DOE Patents [OSTI]

A waveband imager includes an imaging pixel that utilizes photon tunneling with a thermally actuated bimorph structure to convert infrared radiation to visible radiation. Infrared radiation passes through a transparent substrate and is absorbed by a bimorph structure formed with a pixel plate. The absorption generates heat which deflects the bimorph structure and pixel plate towards the substrate and into an evanescent electric field generated by light propagating through the substrate. Penetration of the bimorph structure and pixel plate into the evanescent electric field allows a portion of the visible wavelengths propagating through the substrate to tunnel through the substrate, bimorph structure, and/or pixel plate as visible radiation that is proportional to the intensity of the incident infrared radiation. This converted visible radiation may be superimposed over visible wavelengths passed through the imaging pixel.

Hunter, Scott R.

2013-06-11T23:59:59.000Z

167

\\NeuroImage" Informatics  

E-Print Network [OSTI]

International Neuroimaging Consortium Introduction Author cocitation analysis describes a scienti#12;c #12;eld on data collected by the Institute of Scien- ti#12;c Information among a limited set of key au- thors within a #12;eld. Here we work on data from a single journal (the journal \\NeuroImage") down- loaded from

Nielsen, Finn Ã?rup

168

EBSD Images Theoretical Background  

E-Print Network [OSTI]

Motivation EBSD Images Theoretical Background Defects in the Weld Grain Growth Low Speed Welding High Speed Welding Conclusion Heat-Affected Zone Observations Welding Experiments The low density in the transportation industries. Reproducibility and the low cost make welding a major large scale assembly process

Candea, George

169

Image Charge Differential  

E-Print Network [OSTI]

Image Charge Differential Amplifier FT 0 Crude Oil Time (s) 543210 Frequency (kHz) m/z m q B f Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) uses the frequency of cyclotron motion of the ions in a static magnetic field to determine the mass-to-charge ratio, which is then used

Weston, Ken

170

Fundamentals of Image Processing  

E-Print Network [OSTI]

Fourier transform Log power spectrum #12;Review - The Convolution Theorem · The Fourier transform components · Fourier (1807): Periodic functions could be represented as a weighted sum of sines and cosines Image courtesy of Technology Review #12;Review - Fourier Transform We want to understand

Erdem, Erkut

171

Time-Encoded Imagers.  

SciTech Connect (OSTI)

This report provides a short overview of the DNN R&D funded project, Time-Encoded Imagers. The project began in FY11 and concluded in FY14. The Project Description below provides the overall motivation and objectives for the project as well as a summary of programmatic direction. It is followed by a short description of each task and the resulting deliverables.

Marleau, Peter; Brubaker, Erik

2014-11-01T23:59:59.000Z

172

Image Reconstruction for Prostate Specific Nuclear Medicine imagers  

SciTech Connect (OSTI)

There is increasing interest in the design and construction of nuclear medicine detectors for dedicated prostate imaging. These include detectors designed for imaging the biodistribution of radiopharmaceuticals labeled with single gamma as well as positron-emitting radionuclides. New detectors and acquisition geometries present challenges and opportunities for image reconstruction. In this contribution various strategies for image reconstruction for these special purpose imagers are reviewed. Iterative statistical algorithms provide a framework for reconstructing prostate images from a wide variety of detectors and acquisition geometries for PET and SPECT. The key to their success is modeling the physics of photon transport and data acquisition and the Poisson statistics of nuclear decay. Analytic image reconstruction methods can be fast and are useful for favorable acquisition geometries. Future perspectives on algorithm development and data analysis for prostate imaging are presented.

Mark Smith

2007-01-11T23:59:59.000Z

173

Devices, systems, and methods for imaging  

DOE Patents [OSTI]

Certain exemplary embodiments comprise a system, which can comprise an imaging plate. The imaging plate can be exposable by an x-ray source. The imaging plate can be configured to be used in digital radiographic imaging. The imaging plate can comprise a phosphor-based image storage device configured to convert an image stored therein into light.

Appleby, David (North Garden, VA); Fraser, Iain (Ruckersville, VA); Watson, Scott (Jemez Springs, NM)

2008-04-15T23:59:59.000Z

174

Efficient MR image reconstruction for compressed MR imaging Junzhou Huang  

E-Print Network [OSTI]

to be very powerful for the MR image reconstruction. First, we decompose the original problem into L1 and TV.V. All rights reserved. 1. Introduction Magnetic Resonance (MR) imaging has been widely used in medical. Computation became the bottleneck that prevented this good model (1) from being used in practical MR image

Huang, Junzhou

175

Efficient MR Image Reconstruction for Compressed MR Imaging  

E-Print Network [OSTI]

demonstrate the superior performance of the proposed algorithm for com- pressed MR image reconstruction. 1 [1][2] show that it is possi- ble to accurately reconstruct the Magnetic Resonance (MR) images from for real MR images. Computation became the bottleneck that prevented this good model (1) from being used

Huang, Junzhou

176

Image Utility Assessment and a Relationship with Image Quality Assessment  

E-Print Network [OSTI]

Image Utility Assessment and a Relationship with Image Quality Assessment David M. Rouse , Romuald information to humans, and this paper investigates the utility assessment task, where human observers evaluate the usefulness of a natural image as a surrogate for a reference. Current QA algorithms implicitly assess utility

Hemami, Sheila S.

177

Primer on Use of Multi-Spectral and Infra Red Imaging for On-Site Inspections  

SciTech Connect (OSTI)

The purpose of an On-Site Inspection (OSI) is to determine whether a nuclear explosion has occurred in violation of the Comprehensive Nuclear Test Ban Treaty (CTBT), and to gather information which might assist in identifying the violator (CTBT, Article IV, Paragraph 35) Multi-Spectral and Infra Red Imaging (MSIR) is allowed by the treaty to detect observables which might help reduce the search area and thus expedite an OSI and make it more effective. MSIR is permitted from airborne measurements, and at and below the surface to search for anomalies and artifacts (CTBT, Protocol, Part II, Paragraph 69b). The three broad types of anomalies and artifacts MSIR is expected to be capable of observing are surface disturbances (disturbed earth, plant stress or anomalous surface materials), human artifacts (man-made roads, buildings and features), and thermal anomalies. The purpose of this Primer is to provide technical information on MSIR relevant to its use for OSI. It is expected that this information may be used for general background information, to inform decisions about the selection and testing of MSIR equipment, to develop operational guidance for MSIR use during an OSI, and to support the development of a training program for OSI Inspectors. References are provided so readers can pursue a topic in more detail than the summary information provided here. The following chapters will provide more information on how MSIR can support an OSI (Section 2), a short summary what Multi-Spectral Imaging and Infra Red Imaging is (Section 3), guidance from the CTBT regarding the use of MSIR (Section 4), and a description of several nuclear explosion scenarios (Section 5) and consequent observables (Section 6). The remaining sections focus on practical aspects of using MSIR for an OSI, such as specification and selection of MSIR equipment, operational considerations for deployment of MISR equipment from an aircraft, and the conduct of field exercises to mature MSIR for an OSI. Finally, an appendix provides detail describing the magnitude and spatial extent of the surface shock expected from an underground nuclear explosion. If there is a seismic event or other data to suggest there has been a nuclear explosion in violation of the CTBT, an OSI may be conducted to determine whether a nuclear explosion has occurred and to gather information which may be useful in identifying the party responsible for conducting the explosion. The OSI must be conducted in the area where the event that triggered the inspection request occurred, and the inspected area must not exceed 1,000 square kilometers, or be more than 50 km on aside (CTBT Protocol, Part II, Paragraphs 2 and 3). One of the guiding principles for an inspection is that it be effective, minimally intrusive, timely, and cost-effective [Hawkins, Feb 1998]. In that context, MSIR is one of several technologies that can be used during an aircraft overflight to identify ground regions of high interest in a timely and cost-effective manner. This allows for an optimized inspection on the ground. The primary purpose for MSIR is to identify artifacts and anomalies that might be associated with a nuclear explosion, and to use the location of those artifacts and anomalies to reduce the search area that must be inspected from the ground. The MSIR measurements can have additional utility. The multi-spectral measurements of the ground can be used for terrain classification, which can aid in geological characterization of the Inspected Area. In conditions of where light smoke or haze is present, long-wave infrared imaging can provide better imaging of the ground than is possible with standard visible imagery.

Henderson, J R

2010-10-26T23:59:59.000Z

178

Comprehensive Study of Image Restoration Algorithms.  

E-Print Network [OSTI]

??Abstract Comprehensive Study of Image Restoration Algorithms By Lize Zong Master of Science in Electrical Engineering Image restoration is an important part of digital image-processing.… (more)

Zong, Lize

2015-01-01T23:59:59.000Z

179

Unsupervised Image Ranking Eva Hrster  

E-Print Network [OSTI]

these are the most interesting and relevant shots. For instance, if there are many images of the Golden Gate Bridge

Weinberger, Kilian

180

6, 19532001, 2006 Imaging gravity  

E-Print Network [OSTI]

ACPD 6, 1953­2001, 2006 Imaging gravity waves in lower stratospheric AMSU-A radiances S. D under a Creative Commons License. Atmospheric Chemistry and Physics Discussions Imaging gravity waves.eckermann@nrl.navy.mil) 1953 #12;ACPD 6, 1953­2001, 2006 Imaging gravity waves in lower stratospheric AMSU-A radiances S. D

Boyer, Edmond

Note: This page contains sample records for the topic "hyperspectral imaging long-wave" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


181

Fourier Analysis of Ghost Imaging  

E-Print Network [OSTI]

Fourier analysis of ghost imaging (FAGI) is proposed in this paper to analyze the properties of ghost imaging with thermal light sources. This new theory is compatible with the general correlation theory of intensity fluctuation and could explain some amazed phenomena. Furthermore we design a series of experiments to verify the new theory and investigate the inherent properties of ghost imaging.

Honglin Liu; Jing Cheng; Yanfeng Bai; Shensheng Han

2006-09-28T23:59:59.000Z

182

Automated Very Low Magnification Imaging  

E-Print Network [OSTI]

of the entire available imaging area on the grid. The VLM image can then be used as a reference map of Illinois at Urbana- Champaign, Urbana, IL 61801. A typical TEM specimen grid provides approximately a 2x2 mm area that is available for imaging. In order to identify and locate suitable targets on the grid

183

Multimode imaging device  

DOE Patents [OSTI]

Apparatus for detecting and locating a source of gamma rays of energies ranging from 10-20 keV to several MeV's includes plural gamma ray detectors arranged in a generally closed extended array so as to provide Compton scattering imaging and coded aperture imaging simultaneously. First detectors are arranged in a spaced manner about a surface defining the closed extended array which may be in the form a circle, a sphere, a square, a pentagon or higher order polygon. Some of the gamma rays are absorbed by the first detectors closest to the gamma source in Compton scattering, while the photons that go unabsorbed by passing through gaps disposed between adjacent first detectors are incident upon second detectors disposed on the side farthest from the gamma ray source, where the first spaced detectors form a coded aperture array for two or three dimensional gamma ray source detection.

Mihailescu, Lucian; Vetter, Kai M

2013-08-27T23:59:59.000Z

184

Imaging alpha particle detector  

DOE Patents [OSTI]

A method and apparatus for detecting and imaging alpha particles sources is described. A dielectric coated high voltage electrode and a tungsten wire grid constitute a diode configuration discharge generator for electrons dislodged from atoms or molecules located in between these electrodes when struck by alpha particles from a source to be quantitatively or qualitatively analyzed. A thin polyester film window allows the alpha particles to pass into the gas enclosure and the combination of the glass electrode, grid and window is light transparent such that the details of the source which is imaged with high resolution and sensitivity by the sparks produced can be observed visually as well. The source can be viewed directly, electronically counted or integrated over time using photographic methods. A significant increase in sensitivity over other alpha particle detectors is observed, and the device has very low sensitivity to gamma or beta emissions which might otherwise appear as noise on the alpha particle signal.

Anderson, D.F.

1980-10-29T23:59:59.000Z

185

Imaging alpha particle detector  

DOE Patents [OSTI]

A method and apparatus for detecting and imaging alpha particles sources is described. A conducting coated high voltage electrode (1) and a tungsten wire grid (2) constitute a diode configuration discharge generator for electrons dislodged from atoms or molecules located in between these electrodes when struck by alpha particles from a source (3) to be quantitatively or qualitatively analyzed. A thin polyester film window (4) allows the alpha particles to pass into the gas enclosure and the combination of the glass electrode, grid and window is light transparent such that the details of the source which is imaged with high resolution and sensitivity by the sparks produced can be observed visually as well. The source can be viewed directly, electronically counted or integrated over time using photographic methods. A significant increase in sensitivity over other alpha particle detectors is observed, and the device has very low sensitivity to gamma or beta emissions which might otherwise appear as noise on the alpha particle signal.

Anderson, David F. (Los Alamos, NM)

1985-01-01T23:59:59.000Z

186

Acoustic imaging microscope  

DOE Patents [OSTI]

An imaging system includes: an object wavefront source and an optical microscope objective all positioned to direct an object wavefront onto an area of a vibrating subject surface encompassed by a field of view of the microscope objective, and to direct a modulated object wavefront reflected from the encompassed surface area through a photorefractive material; and a reference wavefront source and at least one phase modulator all positioned to direct a reference wavefront through the phase modulator and to direct a modulated reference wavefront from the phase modulator through the photorefractive material to interfere with the modulated object wavefront. The photorefractive material has a composition and a position such that interference of the modulated object wavefront and modulated reference wavefront occurs within the photorefractive material, providing a full-field, real-time image signal of the encompassed surface area.

Deason, Vance A.; Telschow, Kenneth L.

2006-10-17T23:59:59.000Z

187

Imaging the Antikythera Mechanism  

SciTech Connect (OSTI)

In 1900, a party of sponge divers chanced on the wreck of a Roman merchant vessel between Crete and mainland Greece. It was found to contain numerous ancient Greek treasures, among them a mysterious lump of clay that split open to reveal 'mathematical gears' as it dried out. This object is now known as the Antikythera Mechanism, one of the most enlightening artifacts in terms of revealing the advanced nature of ancient Greek science and technology. In 2005 we travelled to the National Archeological Museum in Athens to apply our Reflectance Imaging methods to the mechanism in the hopes of revealing ancient writing on the device. We were successful, and along with the results of Microfocus CT imaging, we are able to decipher 3000 characters compared with the original 800 known. This lead to an understanding that the device was a mechanical, astronomical computer from 150 B.C.E. capable of predicting solar and lunar eclipses along with other celestial events. This talk will overview both the imaging methods as well as what they reveal about the Antikythera Mechanism.

Malzbender, Tom (Hewlett Packard Laboratories) [Hewlett Packard Laboratories

2011-01-12T23:59:59.000Z

188

Fiducial marker for correlating images  

DOE Patents [OSTI]

The invention relates to a fiducial marker having a marking grid that is used to correlate and view images produced by different imaging modalities or different imaging and viewing modalities. More specifically, the invention relates to the fiducial marking grid that has a grid pattern for producing either a viewing image and/or a first analytical image that can be overlaid with at least one other second analytical image in order to view a light path or to image different imaging modalities. Depending on the analysis, the grid pattern has a single layer of a certain thickness or at least two layers of certain thicknesses. In either case, the grid pattern is imageable by each imaging or viewing modality used in the analysis. Further, when viewing a light path, the light path of the analytical modality cannot be visualized by viewing modality (e.g., a light microscope objective). By correlating these images, the ability to analyze a thin sample that is, for example, biological in nature but yet contains trace metal ions is enhanced. Specifically, it is desired to analyze both the organic matter of the biological sample and the trace metal ions contained within the biological sample without adding or using extrinsic labels or stains.

Miller, Lisa Marie (Rocky Point, NY); Smith, Randy J. (Wading River, NY); Warren, John B. (Port Jefferson, NY); Elliott, Donald (Hampton Bays, NY)

2011-06-21T23:59:59.000Z

189

Bistatic SAR: Imagery & Image Products.  

SciTech Connect (OSTI)

While typical SAR imaging employs a co-located (monostatic) RADAR transmitter and receiver, bistatic SAR imaging separates the transmitter and receiver locations. The transmitter and receiver geometry determines if the scattered signal is back scatter, forward scatter, or side scatter. The monostatic SAR image is backscatter. Therefore, depending on the transmitter/receiver collection geometry, the captured imagery may be quite different that that sensed at the monostatic SAR. This document presents imagery and image products formed from captured signals during the validation stage of the bistatic SAR research. Image quality and image characteristics are discussed first. Then image products such as two-color multi-view (2CMV) and coherent change detection (CCD) are presented.

Yocky, David A.; Wahl, Daniel E.; Jakowatz, Charles V,

2014-10-01T23:59:59.000Z

190

Speckle-free laser imaging  

E-Print Network [OSTI]

Many imaging applications require increasingly bright illumination sources, motivating the replacement of conventional thermal light sources with light emitting diodes (LEDs), superluminescent diodes (SLDs) and lasers. Despite their brightness, lasers and SLDs are poorly suited for full-field imaging applications because their high spatial coherence leads to coherent artifacts known as speckle that corrupt image formation. We recently demonstrated that random lasers can be engineered to provide low spatial coherence. Here, we exploit the low spatial coherence of specifically-designed random lasers to perform speckle-free full-field imaging in the setting of significant optical scattering. We quantitatively demonstrate that images generated with random laser illumination exhibit higher resolution than images generated with spatially coherent illumination. By providing intense laser illumination without the drawback of coherent artifacts, random lasers are well suited for a host of full-field imaging applicatio...

Redding, Brandon; Cao, Hui

2011-01-01T23:59:59.000Z

191

Biomedical Imaging & Informatics | GE Global Research  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Biomedical Imaging & Informatics - European Research and Training Initiative Biomedical Imaging & Informatics - European Research and Training Initiative Dr. Marion I. Menzel...

192

Photogrammetry & Machine Vision 1. Image sensors  

E-Print Network [OSTI]

Photogrammetry & Machine Vision 1. Image sensors (a) Fundamentals of image sensors (b) CCD image. Remondino, N. D'Apuzzo Photogrammetry and Machine Vision ­ 1. Measurement in images (b) Camera calibration of Photogrammetry and Machine Vision Fully understand: 1. Image based 3D and 4D measurement 2. Image based 3D

Giger, Christine

193

ON THE CONTINUITY OF IMAGES BY TRANSMISSION IMAGING Abstract. Transmission imaging is an important imaging technique which is widely used in  

E-Print Network [OSTI]

ON THE CONTINUITY OF IMAGES BY TRANSMISSION IMAGING CHUNLIN WU Abstract. Transmission imaging imaging principle is quite different from that of reflection imaging used in our everyday life. As well scholars studied the application of TV regularization to processing images generated by transmission

Soatto, Stefano

194

Device for wavelength-selective imaging  

DOE Patents [OSTI]

An imaging device captures both a visible light image and a diagnostic image, the diagnostic image corresponding to emissions from an imaging medium within the object. The visible light image (which may be color or grayscale) and the diagnostic image may be superimposed to display regions of diagnostic significance within a visible light image. A number of imaging media may be used according to an intended application for the imaging device, and an imaging medium may have wavelengths above, below, or within the visible light spectrum. The devices described herein may be advantageously packaged within a single integrated device or other solid state device, and/or employed in an integrated, single-camera medical imaging system, as well as many non-medical imaging systems that would benefit from simultaneous capture of visible-light wavelength images along with images at other wavelengths.

Frangioni, John V. (Wayland, MA)

2010-09-14T23:59:59.000Z

195

Associated particle imaging (API)  

SciTech Connect (OSTI)

Associated Particle Imaging (API) is an active neutron probe technique that provides a 3-D image with elemental composition of the material under interrogation, and so occupies a unique niche in the interrogation of unknown objects. The highly penetrating nature of neutrons enables API to provide detailed information about targets of interest that are hidden from view. Due to the isotropic nature of the induced reactions, radiation detectors can be set on the same side of the object as the neutron source, so that the object can be interrogated from a single side. At the heat of the system is a small generator that produces a continuous, monoenergetic flux of neutrons. By measuring the trajectory of coincident alpha particles that are produced as part of the process, the trajectory of the neutron can be inferred. Interactions between a neutron and the material in its path often produce a gamma ray whose energy is characteristic of that material. When the gamma ray is detected, its energy is measured and combined with the trajectory information to produce a 3-D image of the composition of the object being interrogated. During the course of API development, a number of improvements have been made. A new, more rugged sealed Tube Neutron Generator (STNG) has been designed and fabricated that is less susceptible to radiation damage and better able to withstand the rigors of fielding than earlier designs. A specialized high-voltage power supply for the STNG has also been designed and built. A complete package of software has been written for the tasks of system calibration, diagnostics and data acquisition and analysis. A portable system has been built and field tested, proving that API can be taken out of the lab and into real-world situations, and that its performance in the field is equal to that in the lab.

NONE

1998-05-01T23:59:59.000Z

196

Radiation imaging apparatus  

DOE Patents [OSTI]

A radiation imaging system using a charge multiplier and a position sensitive anode in the form of periodically arranged sets of interconnected anode regions for detecting the position of the centroid of a charge cloud arriving thereat from the charge multiplier. Various forms of improved position sensitive anodes having single plane electrode connections are disclosed. Various analog and digital signal processing systems are disclosed, including systems which use the fast response of microchannel plates, anodes and preamps to perform scintillation pulse height analysis digitally. 15 figs.

Anger, H.O.; Martin, D.C.; Lampton, M.L.

1983-07-26T23:59:59.000Z

197

Radiation imaging apparatus  

DOE Patents [OSTI]

A radiation imaging system using a charge multiplier and a position sensitive anode in the form of periodically arranged sets of interconnected anode regions for detecting the position of the centroid of a charge cloud arriving thereat from the charge multiplier. Various forms of improved position sensitive anodes having single plane electrode connections are disclosed. Various analog and digital signal processing systems are disclosed, including systems which use the fast response of microchannel plates, anodes and preamps to perform scintillation pulse height analysis digitally.

Anger, Hal O. (Berkeley, CA); Martin, Donn C. (Berkeley, CA); Lampton, Michael L. (Berkeley, CA)

1983-01-01T23:59:59.000Z

198

Superconductive imaging surface magnetometer  

DOE Patents [OSTI]

An improved pick-up coil system for use with Superconducting Quantum Interference Device gradiometers and magnetometers involving the use of superconducting plates near conventional pick-up coil arrangements to provide imaging of nearby dipole sources and to deflect environmental magnetic noise away from the pick-up coils. This allows the practice of gradiometry and magnetometry in magnetically unshielded environments. One embodiment uses a hemispherically shaped superconducting plate with interior pick-up coils, allowing brain wave measurements to be made on human patients. another embodiment using flat superconducting plates could be used in non-destructive evaluation of materials.

Overton, Jr., William C. (Los Alamos, NM); van Hulsteyn, David B. (Santa Fe, NM); Flynn, Edward R. (Los Alamos, NM)

1991-01-01T23:59:59.000Z

199

Imaging XPS | EMSL  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-SeriesFlickr FlickrGuidedCH2MLLCBasicsScienceRadiation LightsourceImaging XPS

200

Fourier plane image amplifier  

DOE Patents [OSTI]

A solid state laser is frequency tripled to 0.3 .mu.m. A small portion of the laser is split off and generates a Stokes seed in a low power oscillator. The low power output passes through a mask with the appropriate hole pattern. Meanwhile, the bulk of the laser output is focused into a larger stimulated Brillouin scattering (SBS) amplifier. The low power beam is directed through the same cell in the opposite direction. The majority of the amplification takes place at the focus which is the fourier transform plane of the mask image. The small holes occupy large area at the focus and thus are preferentially amplified. The amplified output is now imaged onto the multichip module where the holes are drilled. Because of the fourier plane amplifier, only .about.1/10th the power of a competitive system is needed. This concept allows less expensive masks to be used in the process and requires much less laser power.

Hackel, Lloyd A. (Livermore, CA); Hermann, Mark R. (San Ramon, CA); Dane, C. Brent (Livermore, CA); Tiszauer, Detlev H. (Tracy, CA)

1995-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hyperspectral imaging long-wave" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


201

This article has been accepted for inclusion in a future issue of this journal. Content is final as presented, with the exception of pagination. IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING 1  

E-Print Network [OSTI]

Unmixing of Hyperspectral Images Using a Generalized Bilinear Model Abderrahim Halimi, Yoann Altmann bilinear model and a hierarchical Bayesian algorithm for unmix- ing hyperspectral images. The proposed simulations conducted on synthetic and real data. Index Terms--Bayesian algorithm, bilinear model, Gibbs sam

Dobigeon, Nicolas

202

Application of Parallel Imaging to Murine Magnetic Resonance Imaging  

E-Print Network [OSTI]

. This dissertation describes foundational level work to enable parallel imaging of mice on a 4.7 Tesla/40 cm bore research scanner. Reducing the size of the hardware setup associated with typical parallel imaging was an integral part of achieving the work, as animal...

Chang, Chieh-Wei 1980-

2012-09-21T23:59:59.000Z

203

Processing Visual Images  

SciTech Connect (OSTI)

The back of the eye is lined by an extraordinary biological pixel detector, the retina. This neural network is able to extract vital information about the external visual world, and transmit this information in a timely manner to the brain. In this talk, Professor Litke will describe a system that has been implemented to study how the retina processes and encodes dynamic visual images. Based on techniques and expertise acquired in the development of silicon microstrip detectors for high energy physics experiments, this system can simultaneously record the extracellular electrical activity of hundreds of retinal output neurons. After presenting first results obtained with this system, Professor Litke will describe additional applications of this incredible technology.

Litke, Alan (UC Santa Cruz) [UC Santa Cruz

2006-03-27T23:59:59.000Z

204

Imaging synthetic aperture radar  

DOE Patents [OSTI]

A linear-FM SAR imaging radar method and apparatus to produce a real-time image by first arranging the returned signals into a plurality of subaperture arrays, the columns of each subaperture array having samples of dechirped baseband pulses, and further including a processing of each subaperture array to obtain coarse-resolution in azimuth, then fine-resolution in range, and lastly, to combine the processed subapertures to obtain the final fine-resolution in azimuth. Greater efficiency is achieved because both the transmitted signal and a local oscillator signal mixed with the returned signal can be varied on a pulse-to-pulse basis as a function of radar motion. Moreover, a novel circuit can adjust the sampling location and the A/D sample rate of the combined dechirped baseband signal which greatly reduces processing time and hardware. The processing steps include implementing a window function, stabilizing either a central reference point and/or all other points of a subaperture with respect to doppler frequency and/or range as a function of radar motion, sorting and compressing the signals using a standard fourier transforms. The stabilization of each processing part is accomplished with vector multiplication using waveforms generated as a function of radar motion wherein these waveforms may be synthesized in integrated circuits. Stabilization of range migration as a function of doppler frequency by simple vector multiplication is a particularly useful feature of the invention; as is stabilization of azimuth migration by correcting for spatially varying phase errors prior to the application of an autofocus process.

Burns, Bryan L. (Tijeras, NM); Cordaro, J. Thomas (Albuquerque, NM)

1997-01-01T23:59:59.000Z

205

Image Mining: Detecting Deforestation Patterns  

E-Print Network [OSTI]

54 Chapter IV Image Mining: Detecting Deforestation Patterns Through Satellites Marcelino Pereira to analyze satellite images and extract knowledge from this kind of data. The Amazonia deforestation problem of change on deforested areas of Amazonia. The purpose of the authors is to present relevant technologies

Camara, Gilberto

206

Spatial Sampling for Image Segmentation  

E-Print Network [OSTI]

AND ALONSO RAMIREZ­MANZANARES3 1 Centro de Investigacion en Matematicas A.C, Guanajuato GTO 36000, Mexico 2 Matematicas, Guanajuato GTO 36000, Mexico Email: mrivera@cimat.mx We present a novel framework for image­ processing in order to obtain a desired solution. On the other hand, the image segmentation is commonly

Rivera, Mariano

207

Image texture analysis of elastograms  

E-Print Network [OSTI]

generated elastograms to obtain effective texture features. Four image analysis techniques, co-occurrence statistics, wavelet decomposition, fractal analysis and granulomeay are used to extract a number of features from each image. The inclusions...-RESOLUTION FRACTAL ANALYSIS . . . . . . E. GRANULOMETRIC FEATURES . . F. DATA NORMALIZATION . G. SEPARABILITY MEASURE 13 13 . . . . . 14 . . . . . 20 . . . . . 29 33 36 36 IV TEXTURE ANALYSIS OF SIMULATED ELASTOGRAMS. . . . . . . . . . . 38 A. SIMULATION...

Hussain, Fasahat

1999-01-01T23:59:59.000Z

208

Nested Images Qiang Tong#1  

E-Print Network [OSTI]

Nested Images Qiang Tong#1 , Song-Hai Zhang#2 , Ralph R. Martin*3 , Paul L. Rosin*4 # Tsinghua.Rosin@cs.cardiff.ac.uk Abstract--A nested image is a form of artistic expression in which one or more secondary figures detects the enclosed outer contour of the figure to be nested, and then finds a place in the outer figure

Martin, Ralph R.

209

Geosciences 466/566 Digital Image Processing  

E-Print Network [OSTI]

Geosciences 466/566 Digital Image Processing Winter 2007 Instructor Dr. Anne Nolin Wilkinson 120 This course focuses on the digital image processing of satellite image data. Topics include: data types, image://my.oregonstate.edu Textbook Jensen, J. R., Digital Image Processing: A Remote Sensing Perspective, 3rd Edition, Prentice Hall

Wright, Dawn Jeannine

210

Simultaneous acquisition of differing image types  

DOE Patents [OSTI]

A system in one embodiment includes an image forming device for forming an image from an area of interest containing different image components; an illumination device for illuminating the area of interest with light containing multiple components; at least one light source coupled to the illumination device, the at least one light source providing light to the illumination device containing different components, each component having distinct spectral characteristics and relative intensity; an image analyzer coupled to the image forming device, the image analyzer decomposing the image formed by the image forming device into multiple component parts based on type of imaging; and multiple image capture devices, each image capture device receiving one of the component parts of the image. A method in one embodiment includes receiving an image from an image forming device; decomposing the image formed by the image forming device into multiple component parts based on type of imaging; receiving the component parts of the image; and outputting image information based on the component parts of the image. Additional systems and methods are presented.

Demos, Stavros G

2012-10-09T23:59:59.000Z

211

Digital holographic imaging of aquatic species  

E-Print Network [OSTI]

The aim of this thesis is to design, develop and implement a digital holographic imaging (DHI) system, capable of capturing three-dimensional (3D) images of aquatic species. The images produced by this system are used in ...

Domínguez-Caballero, José Antonio

2006-01-01T23:59:59.000Z

212

Semantic image representation for visual recognition  

E-Print Network [OSTI]

Flickr Images (F18) . . . . . . . . . . . . . . . A.1.5A.1.3. Flickr Images (F18) consists of 1, 800 images fromset. A detailed description of F18 is provided in Appendix.

Rasiwasia, Nikhil

2011-01-01T23:59:59.000Z

213

Reaction product imaging  

SciTech Connect (OSTI)

Over the past few years the author has investigated the photochemistry of small molecules using the photofragment imaging technique. Bond energies, spectroscopy of radicals, dissociation dynamics and branching ratios are examples of information obtained by this technique. Along with extending the technique to the study of bimolecular reactions, efforts to make the technique as quantitative as possible have been the focus of the research effort. To this end, the author has measured the bond energy of the C-H bond in acetylene, branching ratios in the dissociation of HI, the energetics of CH{sub 3}Br, CD{sub 3}Br, C{sub 2}H{sub 5}Br and C{sub 2}H{sub 5}OBr dissociation, and the alignment of the CD{sub 3} fragment from CD{sub 3}I photolysis. In an effort to extend the technique to bimolecular reactions the author has studied the reaction of H with HI and the isotopic exchange reaction between H and D{sub 2}.

Chandler, D.W. [Sandia National Laboratories, Livermore, CA (United States)

1993-12-01T23:59:59.000Z

214

Nuclear medicine imaging system  

DOE Patents [OSTI]

A nuclear medicine imaging system having two large field of view scintillation cameras mounted on a rotatable gantry and being movable diametrically toward or away from each other is disclosed. In addition, each camera may be rotated about an axis perpendicular to the diameter of the gantry. The movement of the cameras allows the system to be used for a variety of studies, including positron annihilation, and conventional single photon emission, as well as static orthogonal dual multi-pinhole tomography. In orthogonal dual multi-pinhole tomography, each camera is fitted with a seven pinhole collimator to provide seven views from slightly different perspectives. By using two cameras at an angle to each other, improved sensitivity and depth resolution is achieved. The computer system and interface acquires and stores a broad range of information in list mode, including patient physiological data, energy data over the full range detected by the cameras, and the camera position. The list mode acquisition permits the study of attenuation as a result of Compton scatter, as well as studies involving the isolation and correlation of energy with a range of physiological conditions.

Bennett, Gerald W. (East Moriches, NY); Brill, A. Bertrand (Shoreham, NY); Bizais, Yves J. C. (Upton, NY); Rowe, R. Wanda (Upton, NY); Zubal, I. George (Upton, NY)

1986-01-01T23:59:59.000Z

215

Image indexing using color correlograms  

DOE Patents [OSTI]

A color correlogram is a three-dimensional table indexed by color and distance between pixels which expresses how the spatial correlation of color changes with distance in a stored image. The color correlogram may be used to distinguish an image from other images in a database. To create a color correlogram, the colors in the image are quantized into m color values, c.sub.i . . . c.sub.m. Also, the distance values k.epsilon.[d] to be used in the correlogram are determined where [d] is the set of distances between pixels in the image, and where dmax is the maximum distance measurement between pixels in the image. Each entry (i, j, k) in the table is the probability of finding a pixel of color c.sub.i at a selected distance k from a pixel of color c.sub.i. A color autocorrelogram, which is a restricted version of the color correlogram that considers color pairs of the form (i,i) only, may also be used to identify an image.

Huang, Jing (Ossining, NY); Kumar, Shanmugasundaram Ravi (San Jose, CA); Mitra, Mandar (Calcutta, IN); Zhu, Wei-Jing (Ossining, NY)

2001-01-01T23:59:59.000Z

216

ORNL microscopy directly images problematic lithium dendrites...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

865.574.7308 ORNL microscopy directly images problematic lithium dendrites in batteries ORNL electron microscopy captured the first real-time nanoscale images of the nucleation and...

217

Correlated Biofilm Imaging, Transport and Metabolism Measurements...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Biofilm Imaging, Transport and Metabolism Measurements via Combined Nuclear Magnetic Resonance and Confocal Correlated Biofilm Imaging, Transport and Metabolism Measurements via...

218

VAX-based ''IMAGE'' backup  

SciTech Connect (OSTI)

Increasing usage of the Applicon IMAGE systems at Bendix Kansas City Division (BKC) conflicts with the need to do daily backup of changed AGS files. This paper describes a VAX-based method for automated, unattended, off-shift backup.

Harris, D.D.

1985-10-01T23:59:59.000Z

219

Imaging atoms in 3-D  

SciTech Connect (OSTI)

Berkeley Lab's Peter Ercius discusses "Imaging atoms in 3-D" in this Oct. 28, 2013 talk, which is part of a Science at the Theater event entitled Eight Big Ideas

Ercius, Peter

2013-10-31T23:59:59.000Z

220

Imaging atoms in 3-D  

ScienceCinema (OSTI)

Berkeley Lab's Peter Ercius discusses "Imaging atoms in 3-D" in this Oct. 28, 2013 talk, which is part of a Science at the Theater event entitled Eight Big Ideas

Ercius, Peter

2014-06-27T23:59:59.000Z

Note: This page contains sample records for the topic "hyperspectral imaging long-wave" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


221

Identifying structural damage from images  

E-Print Network [OSTI]

Pattern Recognition, 26 PDC. Paci?c disater center, 2008.which were acquired from the Paci?c Disaster Center (PDC) (PDC, 2008). These images cover Banda Aceh and its

Chen, ZhiQiang

2009-01-01T23:59:59.000Z

222

Methods for functional brain imaging  

E-Print Network [OSTI]

Magnetic resonance imaging (MRI) has demonstrated the potential for non-invasive mapping of structure and function (fMRI) in the human brain. In this thesis, we propose a series of methodological developments towards ...

Witzel, Thomas, Ph. D. Massachusetts Institute of Technology

2011-01-01T23:59:59.000Z

223

Imaging Liquids Using Microfluidic Cells  

SciTech Connect (OSTI)

Chemistry occurring in the liquid and liquid surface is important in many applications. Chemical imaging of liquids using vacuum based analytical techniques is challenging due to the difficulty in working with liquids with high volatility. Recent development in microfluidics enabled and increased our capabilities to study liquid in situ using surface sensitive techniques such as electron microscopy and spectroscopy. Due to its small size, low cost, and flexibility in design, liquid cells based on microfluidics have been increasingly used in studying and imaging complex phenomena involving liquids. This paper presents a review of microfluidic cells that were developed to adapt to electron microscopes and various spectrometers for in situ chemical analysis and imaging of liquids. The following topics will be covered including cell designs, fabrication techniques, unique technical features for vacuum compatible cells, and imaging with electron microscopy and spectroscopy. Challenges are summarized and recommendations for future development priority are proposed.

Yu, Xiao-Ying; Liu, Bingwen; Yang, Li

2013-05-10T23:59:59.000Z

224

Radiopharmaceuticals for imaging the heart  

DOE Patents [OSTI]

Radiopharmaceuticals for imaging myocardial tissues are prepared by forming lipophilic, cationic complexes of radioactive metal ions with metal chelating ligands comprising the Schiff base adducts of triamines and tetraamines with optionally substituted salicylaldehydes. The lipophilic, cationic, radioactive complexes of the invention exhibit high uptake and retention in myocardial tissues. Preferred gallium-68(III) complexes in accordance with this invention can be used to image the heart using positron emission tomography. 6 figures.

Green, M.A.; Tsang, B.W.

1994-06-28T23:59:59.000Z

225

Radiopharmaceuticals for imaging the heart  

DOE Patents [OSTI]

Radiopharmaceuticals for imaging myocardial tissues are prepared by forming lipophilic, cationic complexes of radioactive metal ions with metal chelating ligands comprising the Schiff base adducts of triamines and tetraamines with optionally substituted salicylaldehydes. The lipophilic, cationic, radioactive complexes of the invention exhibit high uptake and retention in myocardial tissues. Preferred gallium-68(III) complexes in accordance with this invention can be used to image the heart using positron emission tomography.

Green, Mark A. (West Lafayette, IN); Tsang, Brenda W. (Lafayette, IN)

1994-01-01T23:59:59.000Z

226

Soviet image pattern recognition research  

SciTech Connect (OSTI)

This report is an assessment of the published Soviet image pattern recognition (IPR) research and was written by a panel of six US academic experts in that research field. Image pattern recognition is a set of technological research topics involving automatic or interactive computer processing of pictorial information, utilizing optical, electronic, and computer technologies. This report focuses on IPR system configuration (optical, hybrid, digital), and current research. The topical chapter headings are Image Processing Hardware and Software Preprocessing, Statistical Pattern Recognition, Computer Vision, and Optical Techniques and Systems. Soviet research in all areas of IPR is strong in theory, but limited by poor availability of equipment for generating and handling digital images, and digital computer hardware and software. Nevertheless, some Soviet IPR achievements compare favorably with those of the West. There is strong Soviet research in statistical pattern recognition, where fundamental relationships related to the factors determining error rates in classification of images are being developed. There has been good Soviet work in enhancement and restoration of images (visible and radar) of the surface of Venus. There is a strong Soviet development program in optics and optical processing related to IPR. Nevertheless, the state of Soviet research in computer vision is ten to fifteen years behind the West, because of the lack of adequate hardware and software. The Soviet scientists in the area appear competent and knowledgeable of Western work, so that any improvement in their research output would be derived from access to more capable equipment. 402 refs., 4 figs., 4 tabs.

McKenney, B.L.; McGrain, M. (eds.) (Science Applications International Corp., McLean, VA (USA). Foreign Applied Sciences Assessment Center); Klinger, A. (California Univ., Los Angeles, CA (USA). Dept. of Computer Science); Aggarwal, J.K. (Texas Univ., Austin, TX (USA)); George, N.J. (Rochester Univ., NY (USA). Inst. of Optics); Haralick, R.M. (Washington Univ., Seattle, WA (USA). Dept. of Electric

1989-12-01T23:59:59.000Z

227

High speed imager test station  

DOE Patents [OSTI]

A test station enables the performance of a solid state imager (herein called a focal plane array or FPA) to be determined at high image frame rates. A programmable waveform generator is adapted to generate clock pulses at determinable rates for clock light-induced charges from a FPA. The FPA is mounted on an imager header board for placing the imager in operable proximity to level shifters for receiving the clock pulses and outputting pulses effective to clock charge from the pixels forming the FPA. Each of the clock level shifters is driven by leading and trailing edge portions of the clock pulses to reduce power dissipation in the FPA. Analog circuits receive output charge pulses clocked from the FPA pixels. The analog circuits condition the charge pulses to cancel noise in the pulses and to determine and hold a peak value of the charge for digitizing. A high speed digitizer receives the peak signal value and outputs a digital representation of each one of the charge pulses. A video system then displays an image associated with the digital representation of the output charge pulses clocked from the FPA. In one embodiment, the FPA image is formatted to a standard video format for display on conventional video equipment. 12 figs.

Yates, G.J.; Albright, K.L.; Turko, B.T.

1995-11-14T23:59:59.000Z

228

Image description. Cover Image End of image description. NATIONAL CENTER FOR EDUCATION STATISTICS  

E-Print Network [OSTI]

a context for examining the data they submitted to IPEDS. Our goal is to produce a report that is useful University 2 #12;Image description. Bar chart with 10 groups with 2 items per group.Y scale titled Percent

Mohaghegh, Shahab

229

Image Based Gisting in CLIR Mark Sanderson  

E-Print Network [OSTI]

from the Rosch [1] paper. These search terms were entered into the Google Image search engine in order the ability of subjects to derive the search term that might have been used to return a set of images from on subjects' abilities in this respect. Search terms were defined and images found using an online image

Sanderson, Mark

230

Automatic Eyeglasses Removal from Face Images  

E-Print Network [OSTI]

Automatic Eyeglasses Removal from Face Images Chenyu Wu, Ce Liu, Heung-Yueng Shum, Member, IEEE an intelligent image editing and face synthesis system that automatically removes eyeglasses from an input frontal face image. Although conventional image editing tools can be used to remove eyeglasses by pixel

Narasayya, Vivek

231

BLIND DECONVOLUTION AND DEBLURRING IN IMAGE ANALYSIS  

E-Print Network [OSTI]

BLIND DECONVOLUTION AND DEBLURRING IN IMAGE ANALYSIS Peter Hall 1 and Peihua Qiu 1.2 ABSTRACT. Blind deconvolution problems arise in image analysis when both the extent of image blur, and the true from image data. This is a blind deconvolution problem and is, of course, significantly more

Qiu, Peihua

232

Forensic Imaging and Art Herbert Buckley  

E-Print Network [OSTI]

Forensic Imaging and Art Herbert Buckley Director, Forensic Imaging, New York State Police 4pm, Wed by the Forensic Imaging Office of the New York State Police are physiognomical (facial) reconstruction of skeletal of Forensic Imaging. Mr. Buckley has been a guest lecturer before the annual conclave of the New York State

Zanibbi, Richard

233

Image processing applications in NDE  

SciTech Connect (OSTI)

Nondestructive examination (NDE) can be defined as a technique or collection of techniques that permits one to determine some property of a material or object without damaging the object. There are a large number of such techniques and most of them use visual imaging in one form or another. They vary from holographic interferometry where displacements under stress are measured to the visual inspection of an objects surface to detect cracks after penetrant has been applied. The use of image processing techniques on the images produced by NDE is relatively new and can be divided into three general categories: classical image enhancement; mensuration techniques; and quantitative sensitometry. An example is discussed of how image processing techniques are used to nondestructively and destructively test the product throughout its life cycle. The product that will be followed is the microballoon target used in the laser fusion program. The laser target is a small (50 to 100 ..mu..m - dia) glass sphere with typical wall thickness of 0.5 to 6 ..mu..m. The sphere may be used as is or may be given a number of coatings of any number of materials. The beads are mass produced by the millions and the first nondestructive test is to separate the obviously bad beads (broken or incomplete) from the good ones. After this has been done, the good beads must be inspected for spherocity and wall thickness uniformity. The microradiography of the glass, uncoated bead is performed on a specially designed low-energy x-ray machine. The beads are mounted in a special jig and placed on a Kodak high resolution plate in a vacuum chamber that contains the x-ray source. The x-ray image is made with an energy less that 2 keV and the resulting images are then inspected at a magnification of 500 to 1000X. Some typical results are presented.

Morris, R.A.

1980-01-01T23:59:59.000Z

234

Understanding User Intentions in Vertical Image Search  

E-Print Network [OSTI]

proposed for solving the image matching problem and object location problem in crowded scenes. Such method was further developed in [Stricker and Orengo, 1995] with improved indexing techniques to color information in dig- ital images. In [Huang et al...-tree, R-tree and its variant R+-tree and R?-tree, are usually not scalable to dimensions higher than 20 [White and Jain, 1996]. 2.2 Image annotation Image annotation or image tagging is an area closely related to image retrieval. Image anno- tation...

Chen, Yuxin

235

Microscopy image segmentation tool: Robust image data analysis  

SciTech Connect (OSTI)

We present a software package called Microscopy Image Segmentation Tool (MIST). MIST is designed for analysis of microscopy images which contain large collections of small regions of interest (ROIs). Originally developed for analysis of porous anodic alumina scanning electron images, MIST capabilities have been expanded to allow use in a large variety of problems including analysis of biological tissue, inorganic and organic film grain structure, as well as nano- and meso-scopic structures. MIST provides a robust segmentation algorithm for the ROIs, includes many useful analysis capabilities, and is highly flexible allowing incorporation of specialized user developed analysis. We describe the unique advantages MIST has over existing analysis software. In addition, we present a number of diverse applications to scanning electron microscopy, atomic force microscopy, magnetic force microscopy, scanning tunneling microscopy, and fluorescent confocal laser scanning microscopy.

Valmianski, Ilya, E-mail: ivalmian@ucsd.edu; Monton, Carlos; Schuller, Ivan K. [Department of Physics and Center for Advanced Nanoscience, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093 (United States)] [Department of Physics and Center for Advanced Nanoscience, University of California San Diego, 9500 Gilman Drive, La Jolla, California 92093 (United States)

2014-03-15T23:59:59.000Z

236

Mineralogic Interpretation Of Hymap Hyperspectral Data, Dixie...  

Open Energy Info (EERE)

over a new exploration target in Dixie Valley, Nevada, U. S. A. Related research at the Energy & Geoscience Institute is currently focused on mineralogy mapping at the outcrop...

237

Testing Hyperspectral Data for Geobatanical Anomaly Mapping,...  

Open Energy Info (EERE)

Mapping, Dixie Valley, Nevada, Geothermal Area. Washington, D.C.: U.S. Department of Energy. Report No.: NA. Related Geothermal Exploration Activities Activities (3)...

238

Image Forensic of Glare Feature for Improving Image Retrieval Using Benford's Law  

E-Print Network [OSTI]

Image Forensic of Glare Feature for Improving Image Retrieval Using Benford's Law Ghulam Qadir proposed technique is novel and has a potential to be an image forensic tool for quick image analysis. I. INTRODUCTION The field of digital image forensics is striving hard to restore the lost trust in digital content

Doran, Simon J.

239

STAR Images: Image gallery from the Solenoidal Tracker at RHIC  

DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

The primary physics task of STAR is to study the formation and characteristics of the quark-gluon plasma (QGP), a state of matter believed to exist at sufficiently high energy densities. STAR consists of several types of detectors, each specializing in detecting certain types of particles or characterizing their motion. These detectors allow final statements to be made about the collision. The gallery of STAR images makes available a small collection of event-generated images from Gold-Beam experiments, a simulation of TCP Drift, and a library of STAR instrument and construction photos. [See also DDE00093

240

Miniature hybrid optical imaging lens  

DOE Patents [OSTI]

A miniature lens system that corrects for imaging and chromatic aberrations, the lens system being fabricated from primarily commercially-available components. A first element at the input to a lens housing is an aperture stop. A second optical element is a refractive element with a diffractive element closely coupled to, or formed a part of, the rear surface of the refractive element. Spaced closely to the diffractive element is a baffle to limit the area of the image, and this is closely followed by a second refractive lens element to provide the final correction. The image, corrected for aberrations exits the last lens element to impinge upon a detector plane were is positioned any desired detector array. The diffractive element is fabricated according to an equation that includes, as variables, the design wavelength, the index of refraction and the radius from an optical axis of the lens system components.

Sitter, Jr., David N. (Knoxville, TN); Simpson, Marc L. (Knoxville, TN)

1997-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hyperspectral imaging long-wave" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


241

Miniature hybrid optical imaging lens  

DOE Patents [OSTI]

A miniature lens system that corrects for imaging and chromatic aberrations is disclosed, the lens system being fabricated from primarily commercially-available components. A first element at the input to a lens housing is an aperture stop. A second optical element is a refractive element with a diffractive element closely coupled to, or formed a part of, the rear surface of the refractive element. Spaced closely to the diffractive element is a baffle to limit the area of the image, and this is closely followed by a second refractive lens element to provide the final correction. The image, corrected for aberrations exits the last lens element to impinge upon a detector plane were is positioned any desired detector array. The diffractive element is fabricated according to an equation that includes, as variables, the design wavelength, the index of refraction and the radius from an optical axis of the lens system components. 2 figs.

Sitter, D.N. Jr.; Simpson, M.L.

1997-10-21T23:59:59.000Z

242

Electronic imaging system and technique  

DOE Patents [OSTI]

A method and system for viewing objects obscurred by intense plasmas or flames (such as a welding arc) includes a pulsed light source to illuminate the object, the peak brightness of the light reflected from the object being greater than the brightness of the intense plasma or flame; an electronic image sensor for detecting a pulsed image of the illuminated object, the sensor being operated as a high-speed shutter; and electronic means for synchronizing the shutter operation with the pulsed light source.

Bolstad, J.O.

1984-06-12T23:59:59.000Z

243

Tunable Imaging Filters in Astronomy  

E-Print Network [OSTI]

While tunable filters are a recent development in night time astronomy, they have long been used in other physical sciences, e.g. solar physics, remote sensing and underwater communications. With their ability to tune precisely to a given wavelength using a bandpass optimized for the experiment, tunable filters are already producing some of the deepest narrowband images to date of astrophysical sources. Furthermore, some classes of tunable filters can be used in fast telescope beams and therefore allow for narrowband imaging over angular fields of more than a degree over the sky.

J. Bland-Hawthorn

2000-06-05T23:59:59.000Z

244

Multispectral imaging method and apparatus  

DOE Patents [OSTI]

A multispectral imaging method and apparatus are described which are adapted for use in determining material properties, especially properties characteristic of abnormal non-dermal cells. A target is illuminated with a narrow band light beam. The target expresses light in response to the excitation. The expressed light is collected and the target's response at specific response wavelengths to specific excitation wavelengths is measured. From the measured multispectral response the target's properties can be determined. A sealed, remote probe and robust components can be used for cervical imaging. 5 figs.

Sandison, D.R.; Platzbecker, M.R.; Vargo, T.D.; Lockhart, R.R.; Descour, M.R.; Richards-Kortum, R.

1999-07-06T23:59:59.000Z

245

Gamma-ray Imaging Methods  

SciTech Connect (OSTI)

In this document we discuss specific implementations for gamma-ray imaging instruments including the principle of operation and describe systems which have been built and demonstrated as well as systems currently under development. There are several fundamentally different technologies each with specific operational requirements and performance trade offs. We provide an overview of the different gamma-ray imaging techniques and briefly discuss challenges and limitations associated with each modality (in the appendix we give detailed descriptions of specific implementations for many of these technologies). In Section 3 we summarize the performance and operational aspects in tabular form as an aid for comparing technologies and mapping technologies to potential applications.

Vetter, K; Mihailescu, L; Nelson, K; Valentine, J; Wright, D

2006-10-05T23:59:59.000Z

246

Chapter 20. Magnetic Resonance Imaging Magnetic Resonance Imaging  

E-Print Network [OSTI]

, and software training from Siemens Medical Solutions; research funding through the Siemens-MIT Alliance and Technology (HST). 2 Siemens Medical Solutions, Erlangen, Germany. #12;Chapter 20. Magnetic Resonance Imaging, Siemens Medical Solutions, Siemens-MIT Alliance, HST Martinos Catalyst Fund. Project Staff: Audrey P. Fan

247

Multi-channel medical imaging system  

DOE Patents [OSTI]

A medical imaging system provides simultaneous rendering of visible light and fluorescent images. The system may employ dyes in a small-molecule form that remain in the subject's blood stream for several minutes, allowing real-time imaging of the subject's circulatory system superimposed upon a conventional, visible light image of the subject. The system may provide an excitation light source to excite the fluorescent substance and a visible light source for general illumination within the same optical guide used to capture images. The system may be configured for use in open surgical procedures by providing an operating area that is closed to ambient light. The systems described herein provide two or more diagnostic imaging channels for capture of multiple, concurrent diagnostic images and may be used where a visible light image may be usefully supplemented by two or more images that are independently marked for functional interest.

Frangioni, John V

2013-12-31T23:59:59.000Z

248

Upright cone beam CT imaging using the onboard imager  

SciTech Connect (OSTI)

Purpose: Many patients could benefit from being treated in an upright position. The objectives of this study were to determine whether cone beam computed tomography (CBCT) could be used to acquire upright images for treatment planning and to demonstrate whether reconstruction of upright images maintained accurate geometry and Hounsfield units (HUs). Methods: A TrueBeam linac was programmed in developer mode to take upright CBCT images. The gantry head was positioned at 0°, and the couch was rotated to 270°. The x-ray source and detector arms were extended to their lateral positions. The x-ray source and gantry remained stationary as fluoroscopic projections were taken and the couch was rotated from 270° to 90°. The x-ray tube current was normalized to deposit the same dose (measured using a calibrated Farmer ion chamber) as that received during a clinical helical CT scan to the center of a cylindrical, polyethylene phantom. To extend the field of view, two couch rotation scans were taken with the detector offset 15 cm superiorly and then 15 cm inferiorly. The images from these two scans were stitched together before reconstruction. Upright reconstructions were compared to reconstructions from simulation CT scans of the same phantoms. Two methods were investigated for correcting the HUs, including direct calibration and mapping the values from a simulation CT. Results: Overall geometry, spatial linearity, and high contrast resolution were maintained in upright reconstructions. Some artifacts were created and HU accuracy was compromised; however, these limitations could be removed by mapping the HUs from a simulation CT to the upright reconstruction for treatment planning. Conclusions: The feasibility of using the TrueBeam linac to take upright CBCT images was demonstrated. This technique is straightforward to implement and could be of enormous benefit to patients with thoracic tumors or those who find a supine position difficult to endure.

Fave, Xenia, E-mail: xjfave@mdanderson.org; Martin, Rachael [Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030 and The University of Texas Graduate School of Biomedical Sciences at Houston, Houston, Texas 77030 (United States)] [Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030 and The University of Texas Graduate School of Biomedical Sciences at Houston, Houston, Texas 77030 (United States); Yang, Jinzhong; Balter, Peter; Court, Laurence [Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030 (United States)] [Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030 (United States); Carvalho, Luis [Varian Medical Systems, Zug 6303 (Switzerland)] [Varian Medical Systems, Zug 6303 (Switzerland); Pan, Tinsu [Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030 (United States)] [Department of Imaging Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030 (United States)

2014-06-15T23:59:59.000Z

249

Imaging Robot Jonathan Dyssel Stets  

E-Print Network [OSTI]

with a Command File, a file that contains the coordinates and directions of the robot arm. One of the interfaces and an attached camera. The other interface, programmed in Matlab, controls the calculations of the robot armImaging Robot Jonathan Dyssel Stets Kongens Lyngby 2010 IMM-B.Sc-2010-42 #12;Technical University

250

Hadamard multimode optical imaging transceiver  

DOE Patents [OSTI]

Disclosed is a method and system for simultaneously acquiring and producing results for multiple image modes using a common sensor without optical filtering, scanning, or other moving parts. The system and method utilize the Walsh-Hadamard correlation detection process (e.g., functions/matrix) to provide an all-binary structure that permits seamless bridging between analog and digital domains. An embodiment may capture an incoming optical signal at an optical aperture, convert the optical signal to an electrical signal, pass the electrical signal through a Low-Noise Amplifier (LNA) to create an LNA signal, pass the LNA signal through one or more correlators where each correlator has a corresponding Walsh-Hadamard (WH) binary basis function, calculate a correlation output coefficient for each correlator as a function of the corresponding WH binary basis function in accordance with Walsh-Hadamard mathematical principles, digitize each of the correlation output coefficient by passing each correlation output coefficient through an Analog-to-Digital Converter (ADC), and performing image mode processing on the digitized correlation output coefficients as desired to produce one or more image modes. Some, but not all, potential image modes include: multi-channel access, temporal, range, three-dimensional, and synthetic aperture.

Cooke, Bradly J; Guenther, David C; Tiee, Joe J; Kellum, Mervyn J; Olivas, Nicholas L; Weisse-Bernstein, Nina R; Judd, Stephen L; Braun, Thomas R

2012-10-30T23:59:59.000Z

251

Quantum Computing, Metrology, and Imaging  

E-Print Network [OSTI]

Information science is entering into a new era in which certain subtleties of quantum mechanics enables large enhancements in computational efficiency and communication security. Naturally, precise control of quantum systems required for the implementation of quantum information processing protocols implies potential breakthoughs in other sciences and technologies. We discuss recent developments in quantum control in optical systems and their applications in metrology and imaging.

Hwang Lee; Pavel Lougovski; Jonathan P. Dowling

2005-06-17T23:59:59.000Z

252

Imaging Genetics --Towards Discovery Neuroscience  

E-Print Network [OSTI]

variants that influence measures derived from anatomical or functional brain im- ages, which are in turn related to brain-related illnesses or fundamental cognitive, emotional and behavioral processes a tremendous growth in brain imaging as well as an enor- mous explosion of interest and success in genomics

Feng, Jianfeng

253

Dissertation Imaging as Characterization Techniques  

E-Print Network [OSTI]

Telluride Photovoltaics The goal of increasing the efficiency of solar cell devices is a universal oneDissertation Imaging as Characterization Techniques for Thin-Film Cadmium Telluride Photovoltaics. Increased photovoltaic (PV) performance means an increase in competition with other energy tech- nologies

Sites, James R.

254

Image Processing Apr. 16, 2012  

E-Print Network [OSTI]

- The Discrete Fourier transform Log power spectrum #12;Review - The Convolution Theorem · The Fourier frequency components · Fourier (1807): Periodic functions could be represented as a weighted sum of sines and cosines Image courtesy of Technology Review #12;Review - Fourier Transform We want

Erdem, Erkut

255

Covered Product Category: Imaging Equipment  

Broader source: Energy.gov [DOE]

FEMP provides acquisition guidance and Federal efficiency requirements across a variety of product categories, including imaging equipment, which is covered by the ENERGY STAR® program. Federal laws and requirements mandate that agencies meet these efficiency requirements in all procurement and acquisition actions that are not specifically exempted by law.

256

angiographic image segmentation: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Summary: Image segmentation is very essential and critical to image processing and pattern recognition. This survey provides a summary of color image segmentation techniques...

257

Search Log Analysis of the ARTstor Cultural Heritage Image Database  

E-Print Network [OSTI]

Patterns in a Digital Image Database. Information RetrievalCultural Heritage Image Database A thesis submitted inCultural Heritage Image Database by Heather Ann Lowe Master

Lowe, Heather Ann

2013-01-01T23:59:59.000Z

258

MAUI: Modeling, Analysis, and Ultrafast Imaging | Argonne National...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Data Science Modeling and Simulation Multimodal Imaging MAUI: Modeling, Analysis, and Ultrafast Imaging MAUI: Modeling, Analysis, and Ultrafast Imaging Project Goals...

259

Non-Destructive Neutron Imaging to Analyze Particulate Filters...  

Broader source: Energy.gov (indexed) [DOE]

Non-Destructive Neutron Imaging to Analyze Particulate Filters Non-Destructive Neutron Imaging to Analyze Particulate Filters Non-destructive, non-invasive imaging is being...

260

Image fusion for a nighttime driving display  

E-Print Network [OSTI]

An investigation into image fusion for a nighttime driving display application was performed. Most of the image fusion techniques being investigated in this application were developed for other purposes. When comparing the ...

Herrington, William Frederick

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hyperspectral imaging long-wave" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


261

Iterative synthetic aperture radar imaging algorithms   

E-Print Network [OSTI]

Synthetic aperture radar is an important tool in a wide range of civilian and military imaging applications. This is primarily due to its ability to image in all weather conditions, during both the day and the night, ...

Kelly, Shaun Innes

2014-06-30T23:59:59.000Z

262

Image sense disambiguation : a multimodal approach  

E-Print Network [OSTI]

If a picture is worth a thousand words, can a thousand words be worth a training image? Most successful object recognition algorithms require manually annotated images of objects to be collected for training. The amount ...

Saenko, Ekaterina, 1976-

2009-01-01T23:59:59.000Z

263

Predicting gene function from images of cells  

E-Print Network [OSTI]

This dissertation shows that biologically meaningful predictions can be made by analyzing images of cells. In particular, groups of related genes and their biological functions can be predicted using images from large ...

Jones, Thouis Raymond, 1971-

2007-01-01T23:59:59.000Z

264

Foreword,xiii SECTION 1:BASIC IMAGING  

E-Print Network [OSTI]

Guide: Imaging Synaptogenesis by Measuring Accumulation of Synaptic Proteins, 225 C. Dean and F! Scheiffele A Practical Guide: Imaging Retinotectal Synaptic Connectivity,229 S. Cohen-Corey A Practical Guide

265

Lensless X-Ray Imaging in Reflection  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

X-Ray Imaging in Reflection Print The advent of x-ray free-electron laser (XFEL) light sources has led to an outburst of research activities in the field of lensless imaging. XFELs...

266

Imaging the High Energy Cosmic Ray Sky  

E-Print Network [OSTI]

Imaging the High Energy Cosmic Ray Sky PETTER HOFVERBERG Licentiate Thesis Stockholm, Sweden 2006 #12;#12;Licentiate Thesis Imaging the High Energy Cosmic Ray Sky Petter Hofverberg Particle

Haviland, David

267

Automatic caption generation for news images   

E-Print Network [OSTI]

This thesis is concerned with the task of automatically generating captions for images, which is important for many image-related applications. Automatic description generation for video frames would help security ...

Feng, Yansong

2011-06-30T23:59:59.000Z

268

Lensless X-Ray Imaging in Reflection  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Lensless X-Ray Imaging in Reflection Lensless X-Ray Imaging in Reflection Print Wednesday, 26 October 2011 00:00 The advent of x-ray free-electron laser (XFEL) light sources has...

269

BIOMEDICAL MATHEMATICS: Promising Directions in Imaging,  

E-Print Network [OSTI]

BIOMEDICAL MATHEMATICS: Promising Directions in Imaging, Therapy Planning, and Inverse Problems #12;BIOMEDICAL MATHEMATICS: Promising Directions in Imaging, Therapy Planning, and Inverse Problems Yair Censor, Ming Jiang, Ge Wang Editors The Huangguoshu International Interdisciplinary Conference on Biomedical

Censor, Yair

270

Image upload with broken thumbnail image | OpenEI Community  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentrating Solar Power BasicsGermany:Information IDSDloomis's picture Submitted byImage

271

Automated Microarray Image Analysis Toolbox for MATLAB  

SciTech Connect (OSTI)

The Automated Microarray Image Analysis (AMIA) Toolbox for MATLAB is a flexible, open-source microarray image analysis tool that allows the user to customize analysis of sets of microarray images. This tool provides several methods of identifying and quantify spot statistics, as well as extensive diagnostic statistics and images to identify poor data quality or processing. The open nature of this software allows researchers to understand the algorithms used to provide intensity estimates and to modify them easily if desired.

White, Amanda M.; Daly, Don S.; Willse, Alan R.; Protic, Miroslava; Chandler, Darrell P.

2005-09-01T23:59:59.000Z

272

Method for imaging a concealed object  

DOE Patents [OSTI]

A method for imaging a concealed object is described and which includes a step of providing a heat radiating body, and wherein an object to be detected is concealed on the heat radiating body; imaging the heat radiating body to provide a visibly discernible infrared image of the heat radiating body; and determining if the visibly discernible infrared image of the heat radiating body is masked by the presence of the concealed object.

Davidson, James R [Idaho Falls, ID; Partin, Judy K [Idaho Falls, ID; Sawyers, Robert J [Idaho Falls, ID

2007-07-03T23:59:59.000Z

273

SEISMIC IMAGING WITH THE GENERALIZED RADON ...  

E-Print Network [OSTI]

SEISMIC IMAGING WITH THE GENERALIZED RADON. TRANSFORM AND DOUBLE BEAMFORMING: A CURVELET. TRANSFORM PERSPECTIVE. M V DE ...

2008-07-29T23:59:59.000Z

274

Fast neutron imaging device and method  

DOE Patents [OSTI]

A fast neutron imaging apparatus and method of constructing fast neutron radiography images, the apparatus including a neutron source and a detector that provides event-by-event acquisition of position and energy deposition, and optionally timing and pulse shape for each individual neutron event detected by the detector. The method for constructing fast neutron radiography images utilizes the apparatus of the invention.

Popov, Vladimir; Degtiarenko, Pavel; Musatov, Igor V.

2014-02-11T23:59:59.000Z

275

Photogrammetry & Machine Vision 1. Image sensors  

E-Print Network [OSTI]

Photogrammetry & Machine Vision 1. Image sensors (a) Fundamentals of image sensors (b) CCD image'Apuzzo Photogrammetry and Machine Vision - 3 Point cloud processing, surface generation, texturing (b) Camera, noise) 2N. D'Apuzzo Photogrammetry and Machine Vision - 3 Point cloud processing, surface generation

Giger, Christine

276

Photogrammetry & Machine Vision 1. Image sensors  

E-Print Network [OSTI]

Photogrammetry & Machine Vision 1. Image sensors (a) Fundamentals of image sensors (b) CCD image. Remondino, N. D'Apuzzo Photogrammetry and Machine Vision ­ 2. Camera calibration and orientation (b) Camera and Machine Vision ­ 2. Camera calibration and orientation (b) Calibration methods (reference object, point

Giger, Christine

277

Composite ultrasound imaging apparatus and method  

DOE Patents [OSTI]

An imaging apparatus and method for use in presenting composite two dimensional and three dimensional images from individual ultrasonic frames. A cross-sectional reconstruction is applied by using digital ultrasound frames, transducer orientation and a known center. Motion compensation, rank value filtering, noise suppression and tissue classification are utilized to optimize the composite image. 37 figs.

Morimoto, A.K.; Bow, W.J. Jr.; Strong, D.S.; Dickey, F.M.

1998-09-15T23:59:59.000Z

278

Composite ultrasound imaging apparatus and method  

DOE Patents [OSTI]

An imaging apparatus and method for use in presenting composite two dimensional and three dimensional images from individual ultrasonic frames. A cross-sectional reconstruction is applied by using digital ultrasound frames, transducer orientation and a known center. Motion compensation, rank value filtering, noise suppression and tissue classification are utilized to optimize the composite image.

Morimoto, Alan K. (Albuquerque, NM); Bow, Jr., Wallace J. (Albuquerque, NM); Strong, David Scott (Albuquerque, NM); Dickey, Fred M. (Albuquerque, NM)

1998-01-01T23:59:59.000Z

279

THE ROLE OF IMAGE REGISTRATION BRAIN MAPPING  

E-Print Network [OSTI]

1 THE ROLE OF IMAGE REGISTRATION IN BRAIN MAPPING Arthur W. Toga and Paul Thompson Laboratory of Neuro Imaging, Dept. of Neurology, Division of Brain Mapping, UCLA School of Medicine, Los Angeles, CA-5518 E-mail: thompson@loni.ucla.edu #12;2 THE ROLE OF IMAGE REGISTRATION IN BRAIN MAPPING Arthur W. Toga

Thompson, Paul

280

Improved Image Fusion Using Balanced Multiwavelets  

E-Print Network [OSTI]

Improved Image Fusion Using Balanced Multiwavelets Lahouari Ghouti, Ahmed Bouridane and Mohammad K. Ibrahim Abstract-- This paper presents the use of balanced multi- wavelets for image fusion. The proposed image fusion scheme incorporates the use of balanced multiwavelets transform, which uses multiple

Ghouti, Lahouari

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281

Chemical Imaging Initiative Delivering New Capabilities for  

E-Print Network [OSTI]

Chemical Imaging Initiative Delivering New Capabilities for In Situ, Molecular-Scale Imaging A complete, precise and realistic view of chemical, materials and biochemical processes and an understanding sources and mathematical models. At Pacific Northwest National Laboratory, the Chemical Imaging Initiative

282

3D Imaging Of Wet Granular Matter  

E-Print Network [OSTI]

3D Imaging Of Wet Granular Matter Leonard Goff Advisor: Dr. Wolfgang Losert With Application to Penetrometer Insertion #12;3D Imaging Of Wet Granular Matter Leonard Goff, Advisor: Dr. Wolfgang Losert CoffeeSand Gravel Oops! #12;3D Imaging Of Wet Granular Matter Leonard Goff, Advisor: Dr. Wolfgang Losert

Anlage, Steven

283

Reconstruction and Restoration of PET Images.  

E-Print Network [OSTI]

Reconstruction and Restoration of PET Images. Ph.D. Thesis Peter Alshede Philipsen LYNGBY 1998 IMM with reconstruction and restoration of Positron Emission Tomography (PET) images carried out at the Section of Digital contains a short introduction to PET imaging. The second part, chapters 2 to 4, describe the PET scanner

Mosegaard, Klaus

284

HDR CFA IMAGE RENDERING David Alleysson,1  

E-Print Network [OSTI]

HDR CFA IMAGE RENDERING David Alleysson,1 Laurence Meylan,2 and Sabine S¨usstrunk2 1Laboratory of the already demosaiced image. This render- ing is closer to retinal processing where an image is acquired framework, demosaicing is the final step of the rendering. Our method, inspired by retinal sampling

Alleysson, David

285

COMPUTATIONAL IMAGING Berthold K.P. Horn  

E-Print Network [OSTI]

Ziock, and Lorenzo Fabris. #12;Coded Aperture Imaging · Can't refract or reflect gamma rays · Pinhole Principle #12;Decoding Method Rationale #12;Coded Aperture Imaging · Can't refract or reflect gamma rays Squares Match in FT #12;Polystyrene Micro Beads (1µm) #12;#12;(2) CODED APERTURE IMAGING · Can't refract

Treuille, Adrien

286

Nuclide Imaging: Planar Scintigraphy, SPECT, PET  

E-Print Network [OSTI]

: energy of each photon 2 4 r AE I = #12;EL5823 Nuclear Imaging Yao Wang, Polytechnic U., Brooklyn 9 by Prince. Figures are from the textbook except otherwise noted. #12;EL5823 Nuclear Imaging Yao Wang5823 Nuclear Imaging Yao Wang, Polytechnic U., Brooklyn 3 What is Nuclear Medicine · Also known

Suel, Torsten

287

Supplemental Material for "Efficient MR Image Reconstruction for Compressed MR Imaging"  

E-Print Network [OSTI]

D MR images: cardiac, brain, chest and artery respectively. Figure 1, 2, 3 and 4 shows the visual complexity. (a) (b) (c) (d) (e) (f) Fig. 1. Cardiac MR image reconstruction from 20% sampling (a) OriginalSupplemental Material for "Efficient MR Image Reconstruction for Compressed MR Imaging" Paper ID

Huang, Junzhou

288

High-contrast imaging testbed  

SciTech Connect (OSTI)

Several high-contrast imaging systems are currently under construction to enable the detection of extra-solar planets. In order for these systems to achieve their objectives, however, there is considerable developmental work and testing which must take place. Given the need to perform these tests, a spatially-filtered Shack-Hartmann adaptive optics system has been assembled to evaluate new algorithms and hardware configurations which will be implemented in these future high-contrast imaging systems. In this article, construction and phase measurements of a membrane 'woofer' mirror are presented. In addition, results from closed-loop operation of the assembled testbed with static phase plates are presented. The testbed is currently being upgraded to enable operation at speeds approaching 500 hz and to enable studies of the interactions between the woofer and tweeter deformable mirrors.

Baker, K; Silva, D; Poyneer, L; Macintosh, B; Bauman, B; Palmer, D; Remington, T; Delgadillo-Lariz, M

2008-01-23T23:59:59.000Z

289

Dynamic imaging with electron microscopy  

SciTech Connect (OSTI)

Livermore researchers have perfected an electron microscope to study fast-evolving material processes and chemical reactions. By applying engineering, microscopy, and laser expertise to the decades-old technology of electron microscopy, the dynamic transmission electron microscope (DTEM) team has developed a technique that can capture images of phenomena that are both very small and very fast. DTEM uses a precisely timed laser pulse to achieve a short but intense electron beam for imaging. When synchronized with a dynamic event in the microscope's field of view, DTEM allows scientists to record and measure material changes in action. A new movie-mode capability, which earned a 2013 R&D 100 Award from R&D Magazine, uses up to nine laser pulses to sequentially capture fast, irreversible, even one-of-a-kind material changes at the nanometer scale. DTEM projects are advancing basic and applied materials research, including such areas as nanostructure growth, phase transformations, and chemical reactions.

Campbell, Geoffrey; McKeown, Joe; Santala, Melissa

2014-02-20T23:59:59.000Z

290

Interpreting atomic resolution spectroscopic images  

SciTech Connect (OSTI)

Core-loss electron energy loss spectroscopy is a powerful experimental tool providing information about electronic structure essential for understanding the properties of new and emerging materials. Here we show that the shape and width of spectroscopic images do not show a simple variation with binding energy, as commonly assumed. Rather they exhibit a complex dependence on the effective nonlocal scattering potential, and also on the dynamical channeling and absorption of the incident probe through the specimen. Consequently, in LaMnO$_3$, the low lying La N$_{4,5}$ edge at 99 eV can produce images of similar width to higher lying edges such as the O $K$ edge at 532 eV.

Oxley, Mark P [ORNL; Varela del Arco, Maria [ORNL; Pennycook, Timothy J [ORNL; van Benthem, Klaus [ORNL; Findlay, Scott D. [University of Melbourne, Australia; Allen, L. J. [University of Melbourne, Australia; Pennycook, Stephen J [ORNL

2007-01-01T23:59:59.000Z

291

Dynamic imaging with electron microscopy  

ScienceCinema (OSTI)

Livermore researchers have perfected an electron microscope to study fast-evolving material processes and chemical reactions. By applying engineering, microscopy, and laser expertise to the decades-old technology of electron microscopy, the dynamic transmission electron microscope (DTEM) team has developed a technique that can capture images of phenomena that are both very small and very fast. DTEM uses a precisely timed laser pulse to achieve a short but intense electron beam for imaging. When synchronized with a dynamic event in the microscope's field of view, DTEM allows scientists to record and measure material changes in action. A new movie-mode capability, which earned a 2013 R&D 100 Award from R&D Magazine, uses up to nine laser pulses to sequentially capture fast, irreversible, even one-of-a-kind material changes at the nanometer scale. DTEM projects are advancing basic and applied materials research, including such areas as nanostructure growth, phase transformations, and chemical reactions.

Campbell, Geoffrey; McKeown, Joe; Santala, Melissa

2014-05-30T23:59:59.000Z

292

Medical imaging with coded apertures  

SciTech Connect (OSTI)

Now algorithms were investigated for image reconstruction in emission tomography which could incorporate complex instrumental effects such as might be obtained with a coded aperture system. The investigation focused on possible uses of the wavelet transform to handle non-stationary instrumental effects and analytic continuation of the Radon transform to handle self-absorption. Neither investigation was completed during the funding period and whether such algorithms will be useful remains an open question.

Keto, E.; Libby, S.

1995-06-16T23:59:59.000Z

293

Document Imaging | Department of Energy  

Energy Savers [EERE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious RankCombustion |Energy UsageAUDITVehicles » AlternativeUp HomeHorseDOECybersecurityDocument Imaging Document

294

Image compression/decompression based on mathematical transform, reduction/expansion, and image sharpening  

DOE Patents [OSTI]

An image represented in a first image array of pixels is first decimated in two dimensions before being compressed by a predefined compression algorithm such as JPEG. Another possible predefined compression algorithm can involve a wavelet technique. The compressed, reduced image is then transmitted over the limited bandwidth transmission medium, and the transmitted image is decompressed using an algorithm which is an inverse of the predefined compression algorithm (such as reverse JPEG). The decompressed, reduced image is then interpolated back to its original array size. Edges (contours) in the image are then sharpened to enhance the perceptual quality of the reconstructed image. Specific sharpening techniques are described. 22 figs.

Fu, C.Y.; Petrich, L.I.

1997-12-30T23:59:59.000Z

295

Radiation-tolerant imaging device  

DOE Patents [OSTI]

A barrier at a uniform depth for an entire wafer is used to produce imaging devices less susceptible to noise pulses produced by the passage of ionizing radiation. The barrier prevents charge created in the bulk silicon of a CCD detector or a semiconductor logic or memory device from entering the collection volume of each pixel in the imaging device. The charge barrier is a physical barrier, a potential barrier, or a combination of both. The physical barrier is formed by an SiO{sub 2} insulator. The potential barrier is formed by increasing the concentration of majority carriers (holes) to combine with the electron`s generated by the ionizing radiation. A manufacturer of CCD imaging devices can produce radiation-tolerant devices by merely changing the wafer type fed into his process stream from a standard wafer to one possessing a barrier beneath its surface, thus introducing a very small added cost to his production cost. An effective barrier type is an SiO{sub 2} layer. 7 figs.

Colella, N.J.; Kimbrough, J.R.

1996-11-19T23:59:59.000Z

296

VLBI Imaging of Seyfert Galaxies  

E-Print Network [OSTI]

The advent of the Very Long Baseline Array and its phase-referencing capability have enabled milliarcsecond-scale imaging of radio sources at sub-millijansky sensitivity, opening the door to high-resolution imaging of Seyfert galaxies. Over the last few years, this has led to a number of interesting new results that shed light on the characteristics of the inner cores of Seyfert galaxies. These include the following: (1) classical Seyfert galaxies with steep radio spectra have a strong tendency to exhibit radio jets at milliarcsecond scales, sometimes with considerable curvature in the jets; (2) apparent speeds of jets imaged at multiple epochs generally are considerably less than c, often in the vicinity of 0.1c or less, although there sometimes are faster motions seen after strong outbursts; and (3) lower luminosity Seyfert galaxies have a much stronger tendency to show flat or somewhat inverted radio spectra, usually are unresolved on milliarcsecond scales, and probably are dominated by a combination of low-radiative-efficiency accretion flows and very compact radio jets. This paper discusses some examples that illustrate these properties, and summarizes some of what we have learned about weak active galaxies on milliarcsecond scales.

James S. Ulvestad

2003-01-05T23:59:59.000Z

297

Image Resolution in Scanning Transmission Electron Microscopy  

SciTech Connect (OSTI)

Digital images captured with electron microscopes are corrupted by two fundamental effects: shot noise resulting from electron counting statistics and blur resulting from the nonzero width of the focused electron beam. The generic problem of computationally undoing these effects is called image reconstruction and for decades has proved to be one of the most challenging and important problems in imaging science. This proposal concerned the application of the Pixon method, the highest-performance image-reconstruction algorithm yet devised, to the enhancement of images obtained from the highest-resolution electron microscopes in the world, now in operation at Oak Ridge National Laboratory.

Pennycook, S. J.; Lupini, A.R.

2008-06-26T23:59:59.000Z

298

Collaborative Initiative in Biomedical Imaging to Study Complex Diseases  

SciTech Connect (OSTI)

The work reported addressed these topics: Fluorescence imaging; Optical coherence tomography; X-ray interferometer/phase imaging system; Quantitative imaging from scattered fields, Terahertz imaging and spectroscopy; and Multiphoton and Raman microscopy.

Lin, Weili [The University of North Carolina at Chapel Hill; Fiddy, Michael A. [The University of North Carolina at Charlotte

2012-03-31T23:59:59.000Z

299

Image display device in digital TV  

DOE Patents [OSTI]

Disclosed is an image display device in a digital TV that is capable of carrying out the conversion into various kinds of resolution by using single bit map data in the digital TV. The image display device includes: a data processing part for executing bit map conversion, compression, restoration and format-conversion for text data; a memory for storing the bit map data obtained according to the bit map conversion and compression in the data processing part and image data inputted from an arbitrary receiving part, the receiving part receiving one of digital image data and analog image data; an image outputting part for reading the image data from the memory; and a display processing part for mixing the image data read from the image outputting part and the bit map data converted in format from the a data processing part. Therefore, the image display device according to the present invention can convert text data in such a manner as to correspond with various resolution, carry out the compression for bit map data, thereby reducing the memory space, and support text data of an HTML format, thereby providing the image with the text data of various shapes.

Choi, Seung Jong (Seoul, KR)

2006-07-18T23:59:59.000Z

300

Image  

Broader source: Energy.gov (indexed) [DOE]

Domestic Source Recovery- FY 2013 Program or Field Office: Los Alamos Site Office (DOENNSA) Locationls) ICityCountyState): Los Alamos, NM Proposed Action Description: Submit by...

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301

Image  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

LEFT BLANK B-3 DOCUMENTS REVIEWED * BJCPAD-427 R7, Hazard Analysis for the C-746-Q Hazardous and Low-Level Waste Storage Facility Paducah Gaseous Diffusion Plant, Paducah,...

302

Image  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

... 17 L-4e Statistical Analysis of Laboratory Analytical Data ... 17 L-4e(1) Temporal and Spatial...

303

Image  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

are based on South's (1977) Method and Theory in Historical Archeology, but include an expanded list of categories. It should be noted that technical guidance from OHPO staff...

304

Image  

National Nuclear Security Administration (NNSA)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarlyEnergyDepartmentNationalRestart of the Review of theOFFICEACMEFUTURE MOBILITY INPROCEEDINGS,Los

305

Image  

National Nuclear Security Administration (NNSA)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarlyEnergyDepartmentNationalRestart of the Review of theOFFICEACMEFUTURE MOBILITY INPROCEEDINGS,Los

306

Image  

National Nuclear Security Administration (NNSA)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarlyEnergyDepartmentNationalRestart of the Review of theOFFICEACMEFUTURE MOBILITY INPROCEEDINGS,Los

307

Image  

Broader source: Energy.gov (indexed) [DOE]

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarly Career Scientists'Montana.ProgramJulietipDepartment of Energy MediaRequirements ofPaulThe

308

Image  

Office of Legacy Management (LM)

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309

Image  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-SeriesFlickr FlickrGuidedCH2MLLCBasicsScience atIanIgorIlya Prigogine, Chaos,

310

Image  

Office of Environmental Management (EM)

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311

Image  

Office of Environmental Management (EM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergyENERGY TAX POLICIES7.pdfFuel CellandVehicles &StandardsEnergy1 U.S.

312

Image  

Office of Environmental Management (EM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergyENERGY TAX POLICIES7.pdfFuel CellandVehicles &StandardsEnergy1 U.S.

313

Image  

Office of Environmental Management (EM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergyENERGY TAX POLICIES7.pdfFuel CellandVehicles &StandardsEnergy1 U.S.

314

Image  

Office of Environmental Management (EM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergyENERGY TAX POLICIES7.pdfFuel CellandVehicles &StandardsEnergy1 U.S.

315

Image  

Office of Environmental Management (EM)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "of EnergyEnergyENERGY TAX POLICIES7.pdfFuel CellandVehicles &StandardsEnergy1 U.S.

316

Image  

National Nuclear Security Administration (NNSA)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May Jun Jul(Summary) "ofEarlyEnergyDepartmentNational NuclearhasAdministration77Nuclear SecurityFAPAC-NMNRC 741No. M202I.ITEM

317

Image  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun withconfinementEtching. |Endecaheme c-Type|Iltt: Fermi

318

Image  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun withconfinementEtching. |Endecaheme c-Type|Iltt: Fermi CONTRACT!D CODE

319

Image  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun withconfinementEtching. |Endecaheme c-Type|Iltt: Fermi CONTRACT!D

320

Image  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun withconfinementEtching. |Endecaheme c-Type|Iltt: Fermi CONTRACT!D

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321

Image  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

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322

Image  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

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323

Image  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

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324

Image  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

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325

Image  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun withconfinementEtching. |Endecaheme c-Type|Iltt: Fermi CONTRACT!D

326

Image  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun withconfinementEtching. |Endecaheme c-Type|Iltt: Fermi CONTRACT!D

327

Image  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun withconfinementEtching. |Endecaheme c-Type|Iltt: Fermi CONTRACT!D

328

Image  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun withconfinementEtching. |Endecaheme c-Type|Iltt: Fermi CONTRACT!DMA RTINEZ

329

Image  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

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330

Image  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

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331

Image  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

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332

Image  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

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333

Image  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

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334

Image  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

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335

Image  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to: navigation,Ohio:GreerHiCalifornia:ISI SolarIdanha,Information Illinois.Illumitex

336

Search Log Analysis of the ARTstor Cultural Heritage Image Database  

E-Print Network [OSTI]

Image downloaded Advanced search Records when an image ispages Records when an advanced search function is used The

Lowe, Heather Ann

2013-01-01T23:59:59.000Z

337

Relativistic approach to electromagnetic imaging  

E-Print Network [OSTI]

A novel imaging principle based on the interaction of electromagnetic waves with a beam of relativistic electrons is proposed. Wave-particle interaction is assumed to take place in a small spatial domain, so that each electron is only briefly accelerated by the incident field. In the one-dimensional case the spatial distribution of the source density can be directly observed in the temporal spectrum of the scattered field. Whereas, in the two-dimensional case the relation between the source and the spectrum is shown to be approximately the Radon transform.

Budko, N

2004-01-01T23:59:59.000Z

338

Relativistic approach to electromagnetic imaging  

E-Print Network [OSTI]

A novel imaging principle based on the interaction of electromagnetic waves with a beam of relativistic electrons is proposed. Wave-particle interaction is assumed to take place in a small spatial domain, so that each electron is only briefly accelerated by the incident field. In the one-dimensional case the spatial distribution of the source density can be directly observed in the temporal spectrum of the scattered field. Whereas, in the two-dimensional case the relation between the source and the spectrum is shown to be approximately the Radon transform.

Neil Budko

2004-03-11T23:59:59.000Z

339

Lensless Imaging of Magnetic Nanostructures  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

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340

Lensless Imaging of Magnetic Nanostructures  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: VegetationEquipment Surfaces and Interfaces Sample6, 2011 LawrenceE C H N ILensless Imaging of

Note: This page contains sample records for the topic "hyperspectral imaging long-wave" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
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341

Lensless Imaging of Magnetic Nanostructures  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: VegetationEquipment Surfaces and Interfaces Sample6, 2011 LawrenceE C H N ILensless Imaging ofLensless

342

Lensless Imaging of Magnetic Nanostructures  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

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343

Lensless Imaging of Magnetic Nanostructures  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: VegetationEquipment Surfaces and Interfaces Sample6, 2011 LawrenceE C H N ILensless ImagingLensless

344

X-ray Imaging Workshop  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched FerromagnetismWaste and MaterialsWenjun1of EnergyX-ray Computed TomographyImaging

345

Imaging (XSD) | Advanced Photon Source  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-SeriesFlickr FlickrGuidedCH2MLLCBasicsScience atIanIgorIlyaBuildingImaging About

346

Sandia National Laboratories: Image Gallery  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

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347

Quantitative imaging of turbulent and reacting flows  

SciTech Connect (OSTI)

Quantitative digital imaging, using planar laser light scattering techniques is being developed for the analysis of turbulent and reacting flows. Quantitative image data, implying both a direct relation to flowfield variables as well as sufficient signal and spatial dynamic range, can be readily processed to yield two-dimensional distributions of flowfield scalars and in turn two-dimensional images of gradients and turbulence scales. Much of the development of imaging techniques to date has concentrated on understanding the requisite molecular spectroscopy and collision dynamics to be able to determine how flowfield variable information is encoded into the measured signal. From this standpoint the image is seen as a collection of single point measurements. The present effort aims at realizing necessary improvements in signal and spatial dynamic range, signal-to-noise ratio and spatial resolution in the imaging system as well as developing excitation/detection strategies which provide for a quantitative measure of particular flowfield scalars. The standard camera used for the study is an intensified CCD array operated in a conventional video format. The design of the system was based on detailed modeling of signal and image transfer properties of fast UV imaging lenses, image intensifiers and CCD detector arrays. While this system is suitable for direct scalar imaging, derived quantities (e.g. temperature or velocity images) require an exceptionally wide dynamic range imaging detector. To apply these diagnostics to reacting flows also requires a very fast shuttered camera. The authors have developed and successfully tested a new type of gated low-light level detector. This system relies on fast switching of proximity focused image-diode which is direct fiber-optic coupled to a cooled CCD array. Tests on this new detector show significant improvements in detection limit, dynamic range and spatial resolution as compared to microchannel plate intensified arrays.

Paul, P.H. [Sandia National Laboratories, Livermore, CA (United States)

1993-12-01T23:59:59.000Z

348

Selective document image data compression technique  

DOE Patents [OSTI]

A method of storing information from filled-in form-documents comprises extracting the unique user information in the foreground from the document form information in the background. The contrast of the pixels is enhanced by a gamma correction on an image array, and then the color value of each of pixel is enhanced. The color pixels lying on edges of an image are converted to black and an adjacent pixel is converted to white. The distance between black pixels and other pixels in the array is determined, and a filled-edge array of pixels is created. User information is then converted to a two-color format by creating a first two-color image of the scanned image by converting all pixels darker than a threshold color value to black. All the pixels that are lighter than the threshold color value to white. Then a second two-color image of the filled-edge file is generated by converting all pixels darker than a second threshold value to black and all pixels lighter than the second threshold color value to white. The first two-color image and the second two-color image are then combined and filtered to smooth the edges of the image. The image may be compressed with a unique Huffman coding table for that image. The image file is also decimated to create a decimated-image file which can later be interpolated back to produce a reconstructed image file using a bilinear interpolation kernel.--(235 words)

Fu, Chi-Yung (29 Cameo Way, San Francisco, CA 94131); Petrich, Loren I. (1674 Cordoba St., #4, Livermore, CA 94550)

1998-01-01T23:59:59.000Z

349

Selective document image data compression technique  

DOE Patents [OSTI]

A method of storing information from filled-in form-documents comprises extracting the unique user information in the foreground from the document form information in the background. The contrast of the pixels is enhanced by a gamma correction on an image array, and then the color value of each of pixel is enhanced. The color pixels lying on edges of an image are converted to black and an adjacent pixel is converted to white. The distance between black pixels and other pixels in the array is determined, and a filled-edge array of pixels is created. User information is then converted to a two-color format by creating a first two-color image of the scanned image by converting all pixels darker than a threshold color value to black. All the pixels that are lighter than the threshold color value to white. Then a second two-color image of the filled-edge file is generated by converting all pixels darker than a second threshold value to black and all pixels lighter than the second threshold color value to white. The first two-color image and the second two-color image are then combined and filtered to smooth the edges of the image. The image may be compressed with a unique Huffman coding table for that image. The image file is also decimated to create a decimated-image file which can later be interpolated back to produce a reconstructed image file using a bilinear interpolation kernel. 10 figs.

Fu, C.Y.; Petrich, L.I.

1998-05-19T23:59:59.000Z

350

Satellite-based remote sensing of cirrus clouds: hyperspectral radiative transfer modeling, analysis of uncertainties in in-situ cloud extinction measurements and intercomparison of cirrus retrievals from a-train instruments  

E-Print Network [OSTI]

, 2007 (UTC time 18:45).......................... 93 4.6 GOES-12 and GOES-10 merged infrared (11mm) color images over Central America for a) 10:45 b) 12:45 c) 14:28 d) 16:45 e) 18:45 and f) 20:28 UTC, on July 22, 2007............................................................................................. 106 4.14 Same as Fig. 4.10 for the ratio ! c A / MODIS . ......................................... 109 4.15 Same as Fig. 4.10 for the ratio B ?????????????. 111 4.16 Same as Fig. 4.10 for the ratio c C / A ?????????????. 113 4.17 The left...

Zhang, Zhibo

2009-05-15T23:59:59.000Z

351

Cancer Imaging Clinical Cancer Research  

E-Print Network [OSTI]

Purpose: Near-IR fluorescence imaging has great potential for noninvasive in vivo imaging of tumors. In this study, we show the preferential uptake and retention of two hepatamethine cyanine dyes, IR-783 and MHI-148, in tumor cells and tissues. Experimental Design: IR-783 and MHI-148 were investigated for their ability to accumulate in human cancer cells, tumor xenografts, and spontaneous mouse tumors in transgenic animals. Time- and concentration-dependent dye uptake and retention in normal and cancer cells and tissues were compared, and subcellular localization of the dyes and mechanisms of the dye uptake and retention in tumor cells were evaluated using organelle-specific tracking dyes and bromosulfophthalein, a competitive inhibitor of organic anion transporting peptides. These dyes were used to detect human cancer metastases in a mouse model and differentiate cancer cells from normal cells in blood. Results: These near-IR hepatamethine cyanine dyes were retained in cancer cells but not normal cells, in tumor xenografts, and in spontaneous tumors in transgenic mice. They can be used to detect cancer metastasis and cancer cells in blood with a high degree of sensitivity. The dyes were found to concentrate in the mitochondria and lysosomes of cancer cells, probably through organic anion transporting peptides,

Near Ir; Heptamethine Cyanine Dye–mediated; Xiaojian Yang; Chunmeng Shi; Rong Tong; Weiping Qian; Haiyen E. Zhau; Ruoxiang Wang; Guodong Zhu; Jianjun Cheng; Vincent W. Yang; Tianmin Cheng; Maged Henary; Lucjan Strekowski; W. K. Chung

352

Coherent hybrid electromagnetic field imaging  

DOE Patents [OSTI]

An apparatus and corresponding method for coherent hybrid electromagnetic field imaging of a target, where an energy source is used to generate a propagating electromagnetic beam, an electromagnetic beam splitting means to split the beam into two or more coherently matched beams of about equal amplitude, and where the spatial and temporal self-coherence between each two or more coherently matched beams is preserved. Two or more differential modulation means are employed to modulate each two or more coherently matched beams with a time-varying polarization, frequency, phase, and amplitude signal. An electromagnetic beam combining means is used to coherently combine said two or more coherently matched beams into a coherent electromagnetic beam. One or more electromagnetic beam controlling means are used for collimating, guiding, or focusing the coherent electromagnetic beam. One or more apertures are used for transmitting and receiving the coherent electromagnetic beam to and from the target. A receiver is used that is capable of square-law detection of the coherent electromagnetic beam. A waveform generator is used that is capable of generation and control of time-varying polarization, frequency, phase, or amplitude modulation waveforms and sequences. A means of synchronizing time varying waveform is used between the energy source and the receiver. Finally, a means of displaying the images created by the interaction of the coherent electromagnetic beam with target is employed.

Cooke, Bradly J. (Jemez Springs, NM); Guenther, David C. (Los Alamos, NM)

2008-08-26T23:59:59.000Z

353

Scannerless loss modulated flash color range imaging  

DOE Patents [OSTI]

Scannerless loss modulated flash color range imaging methods and apparatus are disclosed for producing three dimensional (3D) images of a target within a scene. Apparatus and methods according to the present invention comprise a light source providing at least three wavelengths (passbands) of illumination that are each loss modulated, phase delayed and simultaneously directed to illuminate the target. Phase delayed light backscattered from the target is spectrally filtered, demodulated and imaged by a planar detector array. Images of the intensity distributions for the selected wavelengths are obtained under modulated and unmodulated (dc) illumination of the target, and the information contained in the images combined to produce a 3D image of the target.

Sandusky, John V. (Albuquerque, NM); Pitts, Todd Alan (Rio Rancho, NM)

2008-09-02T23:59:59.000Z

354

Scannerless loss modulated flash color range imaging  

DOE Patents [OSTI]

Scannerless loss modulated flash color range imaging methods and apparatus are disclosed for producing three dimensional (3D) images of a target within a scene. Apparatus and methods according to the present invention comprise a light source providing at least three wavelengths (passbands) of illumination that are each loss modulated, phase delayed and simultaneously directed to illuminate the target. Phase delayed light backscattered from the target is spectrally filtered, demodulated and imaged by a planar detector array. Images of the intensity distributions for the selected wavelengths are obtained under modulated and unmodulated (dc) illumination of the target, and the information contained in the images combined to produce a 3D image of the target.

Sandusky, John V. (Albuquerque, NM); Pitts, Todd Alan (Rio Rancho, NM)

2009-02-24T23:59:59.000Z

355

Calibration method for video and radiation imagers  

DOE Patents [OSTI]

The relationship between the high energy radiation imager pixel (HERIP) coordinate and real-world x-coordinate is determined by a least square fit between the HERIP x-coordinate and the measured real-world x-coordinates of calibration markers that emit high energy radiation imager and reflect visible light. Upon calibration, a high energy radiation imager pixel position may be determined based on a real-world coordinate of a moving vehicle. Further, a scale parameter for said high energy radiation imager may be determined based on the real-world coordinate. The scale parameter depends on the y-coordinate of the moving vehicle as provided by a visible light camera. The high energy radiation imager may be employed to detect radiation from moving vehicles in multiple lanes, which correspondingly have different distances to the high energy radiation imager.

Cunningham, Mark F. (Oak Ridge, TN); Fabris, Lorenzo (Knoxville, TN); Gee, Timothy F. (Oak Ridge, TN); Goddard, Jr., James S. (Knoxville, TN); Karnowski, Thomas P. (Knoxville, TN); Ziock, Klaus-peter (Clinton, TN)

2011-07-05T23:59:59.000Z

356

Method for position emission mammography image reconstruction  

DOE Patents [OSTI]

An image reconstruction method comprising accepting coincidence datat from either a data file or in real time from a pair of detector heads, culling event data that is outside a desired energy range, optionally saving the desired data for each detector position or for each pair of detector pixels on the two detector heads, and then reconstructing the image either by backprojection image reconstruction or by iterative image reconstruction. In the backprojection image reconstruction mode, rays are traced between centers of lines of response (LOR's), counts are then either allocated by nearest pixel interpolation or allocated by an overlap method and then corrected for geometric effects and attenuation and the data file updated. If the iterative image reconstruction option is selected, one implementation is to compute a grid Siddon retracing, and to perform maximum likelihood expectation maiximization (MLEM) computed by either: a) tracing parallel rays between subpixels on opposite detector heads; or b) tracing rays between randomized endpoint locations on opposite detector heads.

Smith, Mark Frederick

2004-10-12T23:59:59.000Z

357

Atomic resolution images of graphite in air  

SciTech Connect (OSTI)

One sample used for proof of operation for atomic resolution in STM is highly oriented pyrolytic graphite (HOPG). This sample has been imaged with many different STM`s obtaining similar results. Atomic resolution images of HOPG have now been obtained using an STM designed and built at the Precision Engineering Center. This paper discusses the theoretical predictions and experimental results obtained in imaging of HOPG.

Grigg, D.A.; Shedd, G.M.; Griffis, D.; Russell, P.E.

1988-12-01T23:59:59.000Z

358

University of Vermont Center for Biomedical Imaging  

SciTech Connect (OSTI)

This grant was awarded in support of Phase 2 of the University of Vermont Center for Biomedical Imaging. Phase 2 outlined several specific aims including: The development of expertise in MRI and fMRI imaging and their applications The acquisition of peer reviewed extramural funding in support of the Center The development of a Core Imaging Advisory Board, fee structure and protocol review and approval process.

Bernstein, Dr. Ira [University of Vermont and State Agricultural College

2013-08-02T23:59:59.000Z

359

Simplified image processing system for softcopy presentation  

E-Print Network [OSTI]

-based i, echniques for its particular application. In the field of astronomy, digital image processing techniques are used to process images acquired through earth-based telescopes as well as earth orbiting outward- looking satellites jfij, I7j, j8... and analysis is being used to support computerized axial tomography and ultrasound scanning systems ]9]. Typical digital techniques used in biomedical applications include image enhancement, geometric transformation, edge detection, color and pseudo color...

Corleto-Mena, Jose Gilberto

1984-01-01T23:59:59.000Z

360

Precursors to radiopharmaceutical agents for tissue imaging  

DOE Patents [OSTI]

A class of radiolabeled compounds to be used in tissue imaging that exhibits rapid brain uptake, good brain:blood radioactivity ratios, and long retention times. The imaging agents are more specifically radioiodinated aromatic amines attached to dihydropyridine carriers, that exhibit heart as well as brain specificity. In addition to the radiolabeled compounds, classes of compounds are also described that are used as precursors and intermediates in the preparation of the imaging agents.

Srivastava, Prem C. (Oak Ridge, TN); Knapp, Jr., Furn F. (Oak Ridge, TN)

1988-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hyperspectral imaging long-wave" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


361

EIS - An Imaging Survey for VLT Science  

E-Print Network [OSTI]

The imaging data assembled by the recently completed ESO Imaging Survey (EIS) are reviewed and their scientific value briefly assessed. Among the various applications, the imaging data has been used to build a large sample of candidate distant clusters of galaxies in the Southern Hemisphere to be used for follow-up observations with the VLT as well as other space and ground-based facilities. Preliminary results from ongoing work to confirm these candidates are reported and the future prospects discussed.

Luiz da Costa

1999-05-18T23:59:59.000Z

362

Positron emission tomography and optical tissue imaging  

DOE Patents [OSTI]

A mobile compact imaging system that combines both PET imaging and optical imaging into a single system which can be located in the operating room (OR) and provides faster feedback to determine if a tumor has been fully resected and if there are adequate surgical margins. While final confirmation is obtained from the pathology lab, such a device can reduce the total time necessary for the procedure and the number of iterations required to achieve satisfactory resection of a tumor with good margins.

Falen, Steven W. (Carmichael, CA); Hoefer, Richard A. (Newport News, VA); Majewski, Stanislaw (Yorktown, VA); McKisson, John (Hampton, VA); Kross, Brian (Yorktown, VA); Proffitt, James (Newport News, VA); Stolin, Alexander (Newport News, VA); Weisenberger, Andrew G. (Yorktown, VA)

2012-05-22T23:59:59.000Z

363

An Imaging Fourier Transform Spectrometer for NGST  

E-Print Network [OSTI]

Due to its simultaneous deep imaging and integral field spectroscopic capability, an Imaging Fourier Transform Spectrograph (IFTS) is ideally suited to the Next Generation Space Telescope (NGST) mission, and offers opportunities for tremendous scientific return in many fields of astrophysical inquiry. We describe the operation and quantify the advantages of an IFTS for space applications. The conceptual design of the Integral Field Infrared Spectrograph (IFIRS) is a wide field (5'.3 x 5'.3) four-port imaging Michelson interferometer.

James R. Graham

1999-07-18T23:59:59.000Z

364

Science, Optics and You: Mirror and Images  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

opticstutorialsindex.html INTRODUCTION MIRRORS AND IMAGES MODULE m3 SCIENCE, OPTICS & YOU GUIDEBOOK - 44 - SCIENCE, OPTICS & YOU GUIDEBOOK - 45 - m3: Mirrors and...

365

Neutron Imaging of Advanced Engine Technologies  

Broader source: Energy.gov (indexed) [DOE]

during a series of partial regenerations (9302012). - Achieved * Determine temporal and spatial resolution of neutron imaging with respect to fluid density and flow in fuel...

366

Neutron Imaging of Advanced Engine Technologies  

Broader source: Energy.gov (indexed) [DOE]

diesel injector: Filled reservoir Void in reservoir 6 Milestones * Determine temporal and spatial resolution of neutron imaging with respect to fluid density and flow in fuel...

367

Interactive image processing console A6471  

SciTech Connect (OSTI)

Many system designs and implementations of image processors have been published and discussed to which the authors add another one promising a good compromise between speed, flexibility, and costs. Its main components are programmable semiconductor image refresh memories and a fast parallel processor both acting at TV scan velocity. They are embedded in a 16-bit microcomputer system which interfaces them to the user and the programmer. Special features are the possibility to share the image memories between some systems and a crossconnection between image processor and graphic data. A glance onto the programming techniques is given. Prototypes of such a system are operating in remote sensing and biomedical applications. 6 references.

Kempe, V.; Rebel, B.; Wilhelmi, W.

1982-01-01T23:59:59.000Z

368

Polarization imaging apparatus with auto-calibration  

DOE Patents [OSTI]

A polarization imaging apparatus measures the Stokes image of a sample. The apparatus consists of an optical lens set, a first variable phase retarder (VPR) with its optical axis aligned 22.5.degree., a second variable phase retarder with its optical axis aligned 45.degree., a linear polarizer, a imaging sensor for sensing the intensity images of the sample, a controller and a computer. Two variable phase retarders were controlled independently by a computer through a controller unit which generates a sequential of voltages to control the phase retardations of the first and second variable phase retarders. A auto-calibration procedure was incorporated into the polarization imaging apparatus to correct the misalignment of first and second VPRs, as well as the half-wave voltage of the VPRs. A set of four intensity images, I.sub.0, I.sub.1, I.sub.2 and I.sub.3 of the sample were captured by imaging sensor when the phase retardations of VPRs were set at (0,0), (.pi.,0), (.pi.,.pi.) and (.pi./2,.pi.), respectively. Then four Stokes components of a Stokes image, S.sub.0, S.sub.1, S.sub.2 and S.sub.3 were calculated using the four intensity images.

Zou, Yingyin Kevin; Zhao, Hongzhi; Chen, Qiushui

2013-08-20T23:59:59.000Z

369

Imaging - Clearer brain scans ... | ornl.gov  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Imaging - Clearer brain scans ... A clever signal noise reduction strategy developed by a team that includes Oak Ridge National Laboratory's Ben Lawrie could dramatically improve...

370

Photoacoustic phasoscopy super-contrast imaging  

SciTech Connect (OSTI)

Phasoscopy is a recently proposed concept correlating electromagnetic (EM) absorption and scattering properties based on energy conservation. Phase information can be extracted from EM absorption induced acoustic wave and scattered EM wave for biological tissue characterization. In this paper, an imaging modality, termed photoacoustic phasoscopy imaging (PAPS), is proposed and verified experimentally based on phasoscopy concept with laser illumination. Both endogenous photoacoustic wave and scattered photons are collected simultaneously to extract the phase information. The PAPS images are then reconstructed on vessel-mimicking phantom and ex vivo porcine tissues to show significantly improved contrast than conventional photoacoustic imaging.

Gao, Fei; Feng, Xiaohua; Zheng, Yuanjin, E-mail: yjzheng@ntu.edu.sg [School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore 639798 (Singapore)

2014-05-26T23:59:59.000Z

371

Imaging and sensing based on muon tomography  

DOE Patents [OSTI]

Techniques, apparatus and systems for detecting particles such as muons for imaging applications. Subtraction techniques are described to enhance the processing of the muon tomography data.

Morris, Christopher L; Saunders, Alexander; Sossong, Michael James; Schultz, Larry Joe; Green, J. Andrew; Borozdin, Konstantin N; Hengartner, Nicolas W; Smith, Richard A; Colthart, James M; Klugh, David C; Scoggins, Gary E; Vineyard, David C

2012-10-16T23:59:59.000Z

372

Modeling gated neutron images of THD capsules  

SciTech Connect (OSTI)

Time gating a neutron detector 28m from a NIF implosion can produce images at different energies. The brighter image near 14 MeV reflects the size and symmetry of the capsule 'hot spot'. Scattered neutrons, {approx}9.5-13 MeV, reflect the size and symmetry of colder, denser fuel, but with only {approx}1-7% of the neutrons. The gated detector records both the scattered neutron image, and, to a good approximation, an attenuated copy of the primary image left by scintillator decay. By modeling the imaging system the energy band for the scattered neutron image (10-12 MeV) can be chosen, trading off the decayed primary image and the decrease of scattered image brightness with energy. Modeling light decay from EJ399, BC422, BCF99-55, Xylene, DPAC-30, and Liquid A leads to a preference from BCF99-55 for the first NIF detector, but DPAC 30 and Liquid A would be preferred if incorporated into a system. Measurement of the delayed light from the NIF scintillator using implosions at the Omega laser shows BCF99-55 to be a good choice for down-scattered imaging at 28m.

Wilson, Douglas Carl [Los Alamos National Laboratory; Grim, Gary P [Los Alamos National Laboratory; Tregillis, Ian L [Los Alamos National Laboratory; Wilke, Mark D [Los Alamos National Laboratory; Morgan, George L [Los Alamos National Laboratory; Loomis, Eric N [Los Alamos National Laboratory; Wilde, Carl H [Los Alamos National Laboratory; Oertel, John A [Los Alamos National Laboratory; Fatherley, Valerie E [Los Alamos National Laboratory; Clark, David D [Los Alamos National Laboratory; Schmitt, Mark J [Los Alamos National Laboratory; Merrill, Frank E [Los Alamos National Laboratory; Wang, Tai - Sen F [Los Alamos National Laboratory; Danly, Christopher R [Los Alamos National Laboratory; Batha, Steven H [Los Alamos National Laboratory; Patel, M [LLNL; Sepke, S [LLNL; Hatarik, R [LLNL; Fittinghoff, D [LLNL; Bower, D [LLNL; Marinak, M [LLNL; Munro, D [LLNL; Moran, M [LLNL; Hilko, R [NSTEC; Frank, M [LLNL; Buckles, R [NSTEC

2010-01-01T23:59:59.000Z

373

Ultrasonic flow imaging system: A feasibility study  

SciTech Connect (OSTI)

This report examines the feasibility and potential problems in developing a real-time ultrasonic flow imaging instrument for on-line monitoring of mixed-phased flows such as coal slurries. State-of-the-art ultrasonic imaging techniques are assessed for this application. Reflection and diffraction tomographies are proposed for further development, including image-reconstruction algorithms and parallel processing systems. A conventional ultrasonic C-scan technique is used to demonstrate the feasibility of imaging the particle motion in a solid/water flow. 13 refs., 11 figs.

Sheen, S.H.; Lawrence, W.P.; Chien, H.T.; Raptis, A.C.

1991-09-01T23:59:59.000Z

374

Tissue Imaging Using Nanospray Desorption Electrospray Ionization...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

drug discovery, molecular biology, and biochemistry. Citation: Laskin J, BS Heath, PJ Roach, LH Cazares, and OJ Semmes.2012."Tissue Imaging Using Nanospray Desorption...

375

A Comparison of Human and Machine Assessments of Image Similarity for the Organization of Image Databases  

E-Print Network [OSTI]

Databases Scandinavian Conference on Image Analysis June 9--11, 1997, Lappeenranta, Finland David Mc. #12; Scandinavian Conference on Image Analysis June 9--11, 1997, Lappeenranta, Finland David Mc

Genève, Université de

376

Automatic image analysis for detecting and quantifying gamma-ray sources in coded-aperture images  

SciTech Connect (OSTI)

The authors report the development of an automatic image analysis system that detects gamma-ray source regions in images obtained from a coded aperture, gamma-ray imager. The number of gamma sources in the image is not known prior to analysis. The system counts the number (K) of gamma sources detected in the image and estimates the lower bound for the probability that the number of sources in the image is K. The system consists of a two-stage pattern classification scheme in which the probabilistic neural network is used in the supervised learning mode. The algorithms were developed and tested using real gamma-ray images from controlled experiments in which the number and location of depleted uranium source disks in the scene are known. The novelty of the work lies in the creative combination of algorithms and the successful application of the algorithms to real images of gamma-ray sources.

Schaich, P.C.; Sengupta, S.K.; Ziock, K.P. [Lawrence Livermore National Lab., CA (United States)] [Lawrence Livermore National Lab., CA (United States); Clark, G.A. [Lawrence Livermore National Lab., CA (United States)] [Lawrence Livermore National Lab., CA (United States); [Univ. of California, Davis, CA (United States). Center for Image Processing and Integrated Computing

1996-08-01T23:59:59.000Z

377

Silver Peak Innovative Exploration Project  

Broader source: Energy.gov (indexed) [DOE]

indicator minerals from the Visible-Near Infrared (VNIR) region of the spectrum at spatial resolutions of 3 - 5 m 2 - Access the value of hyperspectral imaging for the...

378

Alum Innovative Exploration  

Broader source: Energy.gov (indexed) [DOE]

indicator minerals from the Visible-Near Infrared (VNIR) region of the spectrum at spatial resolutions of 3 - 5 m 2 - Access the value of hyperspectral imaging for the...

379

CX-011728: Categorical Exclusion Determination  

Broader source: Energy.gov [DOE]

BlazeTech Corp. - Hyperspectral Imaging for the Identification of Light Metals CX(s) Applied: B3.6 Date: 10/31/2013 Location(s): Massachusetts Offices(s): Advanced Research Projects Agency-Energy

380

actual situation analysis: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

traffic participants. The proposed ASA includes all four levels of the traditional JDL (Joint Desel, Jrg 2 HOW TO APPLY ICA ON ACTUAL DATA ? EXAMPLE OF MARS HYPERSPECTRAL IMAGE...

Note: This page contains sample records for the topic "hyperspectral imaging long-wave" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


381

Advanced applications in wide-area impedance sensing  

E-Print Network [OSTI]

In this thesis a wide-area impedance sensor used in hyperspectral imaging for a wide variety of applications is presented. Building on previous work, this sensor is decoupled from fluorescent lamps and thus is used to ...

George, Elizabeth C. (Elizabeth Christine)

2014-01-01T23:59:59.000Z

382

Bayesian Estimation of Material Properties in Case of Correlated and Insufficient Data  

E-Print Network [OSTI]

applied in various versions to nancial applications [9], molecular biology and genetics [10], hyperspectral imaging and optics [11]. Coming to Bayesian inference, hierarchical models considering the multivariate covariance matrix in terms of its...

Giugno, Matteo

2013-04-09T23:59:59.000Z

383

MARKOV RANDOM FIELD IMAGE PRIOR MODELS FOR MAP RECONSTRUCTION OF MAGNETOENCEPHALOGRAM IMAGES  

E-Print Network [OSTI]

MARKOV RANDOM FIELD IMAGE PRIOR MODELS FOR MAP RECONSTRUCTION OF MAGNETOENCEPHALOGRAM IMAGES Brian as a classical inverse imaging prob- lem, which for MEG is notoriously ill posed and requires strong sam- ple grid. The second model permits simulating an MRF over the non-uniform grid required

Wirthlin, Michael J.

384

Imaging system for cardiac planar imaging using a dedicated dual-head gamma camera  

DOE Patents [OSTI]

A cardiac imaging system employing dual gamma imaging heads co-registered with one another to provide two dynamic simultaneous views of the heart sector of a patient torso. A first gamma imaging head is positioned in a first orientation with respect to the heart sector and a second gamma imaging head is positioned in a second orientation with respect to the heart sector. An adjustment arrangement is capable of adjusting the distance between the separate imaging heads and the angle between the heads. With the angle between the imaging heads set to 180 degrees and operating in a range of 140-159 keV and at a rate of up to 500kHz, the imaging heads are co-registered to produce simultaneous dynamic recording of two stereotactic views of the heart. The use of co-registered imaging heads maximizes the uniformity of detection sensitivity of blood flow in and around the heart over the whole heart volume and minimizes radiation absorption effects. A normalization/image fusion technique is implemented pixel-by-corresponding pixel to increase signal for any cardiac region viewed in two images obtained from the two opposed detector heads for the same time bin. The imaging system is capable of producing enhanced first pass studies, bloodpool studies including planar, gated and non-gated EKG studies, planar EKG perfusion studies, and planar hot spot imaging.

Majewski, Stanislaw (Morgantown, VA); Umeno, Marc M. (Woodinville, WA)

2011-09-13T23:59:59.000Z

385

Fast Image Drift Compensation in Scanning Electron Microscope Using Image Registration  

E-Print Network [OSTI]

Fast Image Drift Compensation in Scanning Electron Microscope Using Image Registration Naresh Marturi, Sounkalo Demb´el´e and Nadine Piat Abstract-- Scanning Electron Microscope (SEM) image ac analysis and characterization of materials to recover their structural, mechanical, electrical and optical

Boyer, Edmond

386

Observation of the proton aurora with IMAGE FUV imager and simultaneous ion flux in situ measurements  

E-Print Network [OSTI]

Observation of the proton aurora with IMAGE FUV imager and simultaneous ion flux in situ satellite images the aurora in three different spectral regions. One of the channels of the spectrographic to spectrally discriminate between the proton and electron FUV aurora and to globally map the energetic protons

California at Berkeley, University of

387

Image-Based Texture Replacement Using Multiview Images Technion Israel Inst. of Technology  

E-Print Network [OSTI]

Image-Based Texture Replacement Using Multiview Images Doron Tal Technion ­ Israel Inst replacement is one such task. It is the process of painting a new texture over an ex- isting textured image for perform- ing texture replacement, which is based on multiview stereo tech- niques that produce depth

Tal, Ayellet

388

Offshore wind resource assessment through satellite images  

E-Print Network [OSTI]

1 Slide no. 4 Offshore wind resource assessment through satellite images Charlotte Bay Hasager images for offshore wind ressource assessment in lieu of in-situ mast observations #12;4 Slide no Hasager, Dellwik, Nielsen and Furevik, 2004, Validation of ERS-2 SAR offshore wind-speed maps in the North

389

Solid-state NMR imaging system  

DOE Patents [OSTI]

An apparatus for use with a solid-state NMR spectrometer includes a special imaging probe with linear, high-field strength gradient fields and high-power broadband RF coils using a back projection method for data acquisition and image reconstruction, and a real-time pulse programmer adaptable for use by a conventional computer for complex high speed pulse sequences.

Gopalsami, Nachappa (Naperville, IL); Dieckman, Stephen L. (Elmhurst, IL); Ellingson, William A. (Naperville, IL)

1992-01-01T23:59:59.000Z

390

Image Fusion for MR Bias Correction  

E-Print Network [OSTI]

. For example, for fast-spin echo (FSE) pulse sequences, the MR signal is given by this equation: · Target T1Image Fusion for MR Bias Correction Ayres Fan Stochastic Systems Group Joint work with W. Wells, J strength · Spatially varying field strength encodes spatial location in the frequency domain #12;MR Imaging

Willsky, Alan S.

391

BIOSIGNAL 2002 Tagged cardiac MR images analysis  

E-Print Network [OSTI]

in cardiac tagged MR images analysis. 1 Introduction The non invasive assessment of the cardiac functionBIOSIGNAL 2002 Tagged cardiac MR images analysis A. HISTACE, L. HERMAND, C. CAVARO-MENARD LISA used by tagged MRI displays a deformable dark grid which sticks to the contraction of myocardium (fig.1

Histace, Aymeric

392

Thermal Imaging Control of Furnaces and Combustors  

SciTech Connect (OSTI)

The object if this project is to demonstrate and bring to commercial readiness a near-infrared thermal imaging control system for high temperature furnaces and combustors. The thermal imaging control system, including hardware, signal processing, and control software, is designed to be rugged, self-calibrating, easy to install, and relatively transparent to the furnace operator.

David M. Rue; Serguei Zelepouga; Ishwar K. Puri

2003-02-28T23:59:59.000Z

393

Frontiers in Chemical Imaging Seminar Series  

E-Print Network [OSTI]

the positions of Professor in the Dept. of Materials Science and Engineering, University of TennesseeFrontiers in Chemical Imaging Seminar Series Presented by Dr. Stephen J Pennycook, Ph.D. Materials properties. Finally, the direct imaging and identification of point defect configurations in monolayer BN

394

Distribution of anomalous exponents of natural images  

E-Print Network [OSTI]

to the appropriate Fourier components of the image. Such a behavior is typical to the Fourier transform of the spin logarithm, (i), the power spectrum of the whole set of images is taken. The power spectrum is found dimension, is positive and usually not large [5­7]. Such power law behavior is also characteristic of system

Sochen, Nir

395

Compton Dry-Cask Imaging System  

ScienceCinema (OSTI)

The Compton-Dry Cask Imaging Scanner is a system that verifies and documents the presence of spent nuclear fuel rods in dry-cask storage and determines their isotopic composition without moving or opening the cask. For more information about this project, visit http://www.inl.gov/rd100/2011/compton-dry-cask-imaging-system/

None

2013-05-28T23:59:59.000Z

396

Compton Dry-Cask Imaging System  

SciTech Connect (OSTI)

The Compton-Dry Cask Imaging Scanner is a system that verifies and documents the presence of spent nuclear fuel rods in dry-cask storage and determines their isotopic composition without moving or opening the cask. For more information about this project, visit http://www.inl.gov/rd100/2011/compton-dry-cask-imaging-system/

None

2011-01-01T23:59:59.000Z

397

Method for nuclear magnetic resonance imaging  

DOE Patents [OSTI]

A method for in vivo NMR imaging of the blood vessels and organs of a patient characterized by using a dark dye-like imaging substance consisting essentially of a stable, high-purity concentration of D/sub 2/O in a solution with water.

Kehayias, J.J.; Joel, D.D.; Adams, W.H.; Stein, H.L.

1988-05-26T23:59:59.000Z

398

TRADEOFFS AND LIMITATIONS IN STATISTICALLY BASED IMAGE  

E-Print Network [OSTI]

Tomography (Compton SPECT) system is derived, and reconstructed images from both simulated and measured data of the projection data using vector quantizers. Asymptotic expressions for the loss in the KullbackTRADEOFFS AND LIMITATIONS IN STATISTICALLY BASED IMAGE RECONSTRUCTION PROBLEMS by Thomas J. Kragh

Hero, Alfred O.

399

System for imaging plutonium through heavy shielding  

SciTech Connect (OSTI)

A single pinhole can be used to image strong self-luminescent gamma-ray sources such as plutonium on gamma scintillation (Anger) cameras. However, if the source is weak or heavily shielded, a poor signal to noise ratio can prevent acquisition of the image. An imaging system designed and built at Los Alamos National Laboratory uses a coded aperture to image heavily shielded sources. The paper summarizes the mathematical techniques, based on the Fast Delta Hadamard transform, used to decode raw images. Practical design considerations such as the phase of the uniformly redundant aperture and the encoded image sampling are discussed. The imaging system consists of a custom designed m-sequence coded aperture, a Picker International Corporation gamma scintillation camera, a LeCroy 3500 data acquisition system, and custom imaging software. The paper considers two sources - 1.5 mCi /sup 57/Co unshielded at a distance of 27 m and 220 g of bulk plutonium (11.8% /sup 240/Pu) with 0.3 cm lead, 2.5 cm steel, and 10 cm of dense plastic material at a distance of 77.5 cm. Results show that the location and geometry of a source hidden in a large sealed package can be determined without having to open the package. 6 references, 4 figures.

Kuckertz, T.H.; Cannon, T.M.; Fenimore, E.E.; Moss, C.E.; Nixon, K.V.

1984-04-01T23:59:59.000Z

400

Confidence-Driven Image Co-matting Linbo Wanga  

E-Print Network [OSTI]

, the task of estimating accurate foreground opacity from a given image, is a severely ill stack than applying state-of-the-art single image matting techniques individually on each image fore- ground opacity from natural images. Specifically, given an input image I, it estimates

Wang, Jue

Note: This page contains sample records for the topic "hyperspectral imaging long-wave" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


401

Edge Detection in Digital Image Processing Debosmit Ray  

E-Print Network [OSTI]

Edge Detection in Digital Image Processing Debosmit Ray Thursday, June 06, 2013. 1. Introduction In this paper, I discuss the mathematical theorems and algorithms used in image processing. Digital Image Processing is the use of com- puter algorithms to perform image processing on digital images. Since the use

Morrow, James A.

402

Angle-resolved scattering spectroscopy of explosives using an external cavity quantum cascade laser  

SciTech Connect (OSTI)

Investigation of angle-resolved scattering from solid explosives residues on a car door for non-contact sensing geometries. Illumination with a mid-infrared external cavity quantum cascade laser tuning between 7 and 8 microns was detected both with a sensitive single point detector and a hyperspectral imaging camera. Spectral scattering phenomena were discussed and possibilities for hyperspectral imaging at large scattering angles were outlined.

Suter, Jonathan D.; Bernacki, Bruce E.; Phillips, Mark C.

2012-04-01T23:59:59.000Z

403

Robust diffusion imaging framework for clinical studies  

E-Print Network [OSTI]

Clinical diffusion imaging requires short acquisition times and good image quality to permit its use in various medical applications. In turn, these demands require the development of a robust and efficient post-processing framework in order to guarantee useful and reliable results. However, multiple artefacts abound in in vivo measurements; from either subject such as cardiac pulsation, bulk head motion, respiratory motion and involuntary tics and tremor, or imaging hardware related problems, such as table vibrations, etc. These artefacts can severely degrade the resulting images and render diffusion analysis difficult or impossible. In order to overcome these problems, we developed a robust and efficient framework enabling the use of initially corrupted images from a clinical study. At the heart of this framework is an improved least trimmed squares diffusion tensor estimation algorithm that works well with severely degraded datasets with low signal-to-noise ratio. This approach has been compared with other...

Maximov, Ivan I; Neuner, Irene; Shah, N Jon

2015-01-01T23:59:59.000Z

404

Electric field Induced Patterns in Soft Visco-elastic films: From Long Waves of Viscous Liquids to Short Waves of Elastic Solids  

E-Print Network [OSTI]

We show that the electric field driven surface instability of visco-elastic films has two distinct regimes: (1) The visco-elastic films behaving like a liquid display long wavelengths governed by applied voltage and surface tension, independent of its elastic storage and viscous loss moduli, and (2) the films behaving like a solid require a threshold voltage for the instability whose wavelength always scales as ~ 4 x film thickness, independent of its surface tension, applied voltage, loss and storage moduli. Wavelength in a narrow transition zone between these regimes depends on the storage modulus.

N. Arun; Ashutosh Sharma; Partho S. G. Pattader; Indrani Banerjee; Hemant M. Dixit; K. S. Narayan

2009-06-02T23:59:59.000Z

405

Content-oriented 3D reconstruction from image streams  

E-Print Network [OSTI]

the automatisation of SaM from image sequences and videosby the input images to improve 3D reconstructions in SaMMo- tion (SaM). Structure and Motion from image sequences or

Knoblauch, Daniel

2011-01-01T23:59:59.000Z

406

arrays ultrasonic imaging: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

1988-01-01 74 The SORDS trimodal imager detector arrays MIT - DSpace Summary: The Raytheon Trimodal Imager (TMI) uses coded aperture and Compton imaging technologies as well as...

407

Engineering and information technology: Using imaging to reengineer business  

SciTech Connect (OSTI)

Image processing can be a great asset to business process reengineering. This paper examines image processing`s impact on workflow and attempts to list the questions that should be addressed before imaging technology is introduced.

Norton, F.J.

1996-06-10T23:59:59.000Z

408

Surface Dependent Representations for Illumination Insensitive Image Comparison  

E-Print Network [OSTI]

. Lighting variation significantly affects surface appearance and makes image comparison difficultSurface Dependent Representations for Illumination Insensitive Image Comparison Margarita Osadchy the problem of matching images to tell whether they come from the same scene viewed under different lighting

Lindenbaum, Michael

409

Statistical Image Reconstruction Algorithms Using Paraboloidal Surrogates for PET Transmission  

E-Print Network [OSTI]

Statistical Image Reconstruction Algorithms Using Paraboloidal Surrogates for PET Transmission Reconstruction Algorithms Using Paraboloidal Surrogates for PET Transmission Scans by Hakan Erdogan Chair: Jeffrey A. Fessler Positron Emission Tomography (PET) is a diagnostic imaging tool that provides images

Fessler, Jeffrey A.

410

Urbanhermes : fashion signaling and the social mobility of images  

E-Print Network [OSTI]

Urbanhermes is a messenger bag designed to display and disseminate meaningful yet ephemeral images between people in the public realm. These images surface as representation of the daily zeitgeist; the image as fashion ...

Liu, Christine M. (Christine Mae)

2006-01-01T23:59:59.000Z

411

Method for eliminating artifacts in CCD imagers  

DOE Patents [OSTI]

An electronic method for eliminating artifacts in a video camera employing a charge coupled device (CCD) as an image sensor is disclosed. The method comprises the step of initializing the camera prior to normal read out and includes a first dump cycle period for transferring radiation generated charge into the horizontal register while the decaying image on the phosphor being imaged is being integrated in the photosites, and a second dump cycle period, occurring after the phosphor image has decayed, for rapidly dumping unwanted smear charge which has been generated in the vertical registers. Image charge is then transferred from the photosites and to the vertical registers and read out in conventional fashion. The inventive method allows the video camera to be used in environments having high ionizing radiation content, and to capture images of events of very short duration and occurring either within or outside the normal visual wavelength spectrum. Resultant images are free from ghost, smear and smear phenomena caused by insufficient opacity of the registers and, and are also free from random damage caused by ionization charges which exceed the charge limit capacity of the photosites. 3 figs.

Turko, B.T.; Yates, G.J.

1992-06-09T23:59:59.000Z

412

The Neutron Imaging Diagnostic at NIF  

SciTech Connect (OSTI)

A neutron imaging diagnostic has recently been commissioned at the National Ignition Facility (NIF). This new system is an important diagnostic tool for inertial fusion studies at the NIF for measuring the size and shape of the burning DT plasma during the ignition stage of ICF implosions. The imaging technique utilizes a pinhole neutron aperture, placed between the neutron source and a neutron detector. The detection system measures the two dimensional distribution of neutrons passing through the pinhole. This diagnostic has been designed to collect two images at two times. The long flight path for this diagnostic, 28 m, results in a chromatic separation of the neutrons, allowing the independently timed images to measure the source distribution for two neutron energies. Typically the first image measures the distribution of the 14 MeV neutrons and the second image of the 6-12 MeV neutrons. The combination of these two images has provided data on the size and shape of the burning plasma within the compressed capsule, as well as a measure of the quantity and spatial distribution of the cold fuel surrounding this core.

Merrill, F E; Buckles, R; Clark, D; Danly, C R; Drury, O B; Dzenitis, J M; Fatherly, V E; Fittinghoff, D N; Gallegos, R; Grim, G P; Guler, N; Loomis, E N; Lutz, S; Malone, R M; Martinson, D D; Mares, D; Morley, D J; Morgan, G L; Oertel, J A; Tregillis, I L; Volegov, P L; Weiss, P B; Wilde, C H

2012-10-01T23:59:59.000Z

413

The neutron imaging diagnostic at NIF (invited)  

SciTech Connect (OSTI)

A neutron imaging diagnostic has recently been commissioned at the National Ignition Facility (NIF). This new system is an important diagnostic tool for inertial fusion studies at the NIF for measuring the size and shape of the burning DT plasma during the ignition stage of Inertial Confinement Fusion (ICF) implosions. The imaging technique utilizes a pinhole neutron aperture, placed between the neutron source and a neutron detector. The detection system measures the two dimensional distribution of neutrons passing through the pinhole. This diagnostic has been designed to collect two images at two times. The long flight path for this diagnostic, 28 m, results in a chromatic separation of the neutrons, allowing the independently timed images to measure the source distribution for two neutron energies. Typically the first image measures the distribution of the 14 MeV neutrons and the second image of the 6-12 MeV neutrons. The combination of these two images has provided data on the size and shape of the burning plasma within the compressed capsule, as well as a measure of the quantity and spatial distribution of the cold fuel surrounding this core.

Merrill, F. E.; Clark, D. D.; Danly, C. R.; Drury, O. B.; Fatherley, V. E.; Gallegos, R.; Grim, G. P.; Guler, N.; Loomis, E. N.; Martinson, D. D.; Mares, D.; Morley, D. J.; Morgan, G. L.; Oertel, J. A.; Tregillis, I. L.; Volegov, P. L.; Wilde, C. H.; Wilson, D. C. [Los Alamos National Laboratory, Los Alamos, New Mexico 87544 (United States); Bower, D.; Dzenitis, J. M. [Livermore National Laboratory, Livermore, California 94550 (United States); and others

2012-10-15T23:59:59.000Z

414

X-ray lithography using holographic images  

DOE Patents [OSTI]

Methods for forming X-ray images having 0.25 .mu.m minimum line widths on X-ray sensitive material are presented. A holgraphic image of a desired circuit pattern is projected onto a wafer or other image-receiving substrate to allow recording of the desired image in photoresist material. In one embodiment, the method uses on-axis transmission and provides a high flux X-ray source having modest monochromaticity and coherence requirements. A layer of light-sensitive photoresist material on a wafer with a selected surface is provided to receive the image(s). The hologram has variable optical thickness and variable associated optical phase angle and amplitude attenuation for transmission of the X-rays. A second embodiment uses off-axis holography. The wafer receives the holographic image by grazing incidence reflection from a hologram printed on a flat metal or other highly reflecting surface or substrate. In this second embodiment, an X-ray beam with a high degree of monochromaticity and spatial coherence is required.

Howells, Malcolm S. (Berkeley, CA); Jacobsen, Chris (Sound Beach, NY)

1997-01-01T23:59:59.000Z

415

Storage and retrieval of large digital images  

DOE Patents [OSTI]

Image compression and viewing are implemented with (1) a method for performing DWT-based compression on a large digital image with a computer system possessing a two-level system of memory and (2) a method for selectively viewing areas of the image from its compressed representation at multiple resolutions and, if desired, in a client-server environment. The compression of a large digital image I(x,y) is accomplished by first defining a plurality of discrete tile image data subsets T.sub.ij (x,y) that, upon superposition, form the complete set of image data I(x,y). A seamless wavelet-based compression process is effected on I(x,y) that is comprised of successively inputting the tiles T.sub.ij (x,y) in a selected sequence to a DWT routine, and storing the resulting DWT coefficients in a first primary memory. These coefficients are periodically compressed and transferred to a secondary memory to maintain sufficient memory in the primary memory for data processing. The sequence of DWT operations on the tiles T.sub.ij (x,y) effectively calculates a seamless DWT of I(x,y). Data retrieval consists of specifying a resolution and a region of I(x,y) for display. The subset of stored DWT coefficients corresponding to each requested scene is determined and then decompressed for input to an inverse DWT, the output of which forms the image display. The repeated process whereby image views are specified may take the form an interaction with a computer pointing device on an image display from a previous retrieval.

Bradley, Jonathan N. (Los Alamos, NM)

1998-01-01T23:59:59.000Z

416

Storage and retrieval of large digital images  

DOE Patents [OSTI]

Image compression and viewing are implemented with (1) a method for performing DWT-based compression on a large digital image with a computer system possessing a two-level system of memory and (2) a method for selectively viewing areas of the image from its compressed representation at multiple resolutions and, if desired, in a client-server environment. The compression of a large digital image I(x,y) is accomplished by first defining a plurality of discrete tile image data subsets T{sub ij}(x,y) that, upon superposition, form the complete set of image data I(x,y). A seamless wavelet-based compression process is effected on I(x,y) that is comprised of successively inputting the tiles T{sub ij}(x,y) in a selected sequence to a DWT routine, and storing the resulting DWT coefficients in a first primary memory. These coefficients are periodically compressed and transferred to a secondary memory to maintain sufficient memory in the primary memory for data processing. The sequence of DWT operations on the tiles T{sub ij}(x,y) effectively calculates a seamless DWT of I(x,y). Data retrieval consists of specifying a resolution and a region of I(x,y) for display. The subset of stored DWT coefficients corresponding to each requested scene is determined and then decompressed for input to an inverse DWT, the output of which forms the image display. The repeated process whereby image views are specified may take the form an interaction with a computer pointing device on an image display from a previous retrieval. 6 figs.

Bradley, J.N.

1998-01-20T23:59:59.000Z

417

Estimating IMU heading error from SAR images.  

SciTech Connect (OSTI)

Angular orientation errors of the real antenna for Synthetic Aperture Radar (SAR) will manifest as undesired illumination gradients in SAR images. These gradients can be measured, and the pointing error can be calculated. This can be done for single images, but done more robustly using multi-image methods. Several methods are provided in this report. The pointing error can then be fed back to the navigation Kalman filter to correct for problematic heading (yaw) error drift. This can mitigate the need for uncomfortable and undesired IMU alignment maneuvers such as S-turns.

Doerry, Armin Walter

2009-03-01T23:59:59.000Z

418

Method for large and rapid terahertz imaging  

DOE Patents [OSTI]

A method of large-scale active THz imaging using a combination of a compact high power THz source (>1 watt), an optional optical system, and a camera for the detection of reflected or transmitted THz radiation, without the need for the burdensome power source or detector cooling systems required by similar prior art such devices. With such a system, one is able to image, for example, a whole person in seconds or less, whereas at present, using low power sources and scanning techniques, it takes several minutes or even hours to image even a 1 cm.times.1 cm area of skin.

Williams, Gwyn P.; Neil, George R.

2013-01-29T23:59:59.000Z

419

ESO Imaging Survey: Finding Targets for VLT  

E-Print Network [OSTI]

Data from the wide-angle, moderately deep ESO Imaging Survey have been used to produce target lists for the first year of the VLT. About 250 candidate clusters of galaxies have been identified from the I-band images covering $\\sim$ 17 square degrees. In addition, using the multicolor data available over an area of 1.3 square degrees over 300 potentially interesting point-sources have been selected. The color-selected targets include low-mass stars/brown dwarfs, white-dwarfs and quasars. Images, object catalogs and derived target lists are available from the world-wide web (http://www.eso.org/eis)

L. N. da Costa

1998-09-16T23:59:59.000Z

420

Imaging Fukushima Daiichi reactors with muons  

SciTech Connect (OSTI)

A study of imaging the Fukushima Daiichi reactors with cosmic-ray muons to assess the damage to the reactors is presented. Muon scattering imaging has high sensitivity for detecting uranium fuel and debris even through thick concrete walls and a reactor pressure vessel. Technical demonstrations using a reactor mockup, detector radiation test at Fukushima Daiichi, and simulation studies have been carried out. These studies establish feasibility for the reactor imaging. A few months of measurement will reveal the spatial distribution of the reactor fuel. The muon scattering technique would be the best and probably the only way for Fukushima Daiichi to make this determination in the near future.

Miyadera, Haruo; Borozdin, Konstantin N.; Greene, Steve J.; Milner, Edward C.; Morris, Christopher L. [Los Alamos National Laboratory, Los Alamos, NM 87545 (United States); Lukic, Zarija [Computational Cosmology Center, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 (United States); Masuda, Koji [University of New Mexico, Albuquerque, NM 87131 (United States); Perry, John O. [Los Alamos National Laboratory, Los Alamos, NM 87545 (United States); University of New Mexico, Albuquerque, NM 87131 (United States)

2013-05-15T23:59:59.000Z

Note: This page contains sample records for the topic "hyperspectral imaging long-wave" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


421

Magnetic Resonance Imaging (MRI) of PEM Dehydration and Gas Manifold...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Resonance Imaging (MRI) of PEM Dehydration and Gas Manifold Flooding During Continuous Fuel Cell Operation. Magnetic Resonance Imaging (MRI) of PEM Dehydration and Gas Manifold...

422

Advanced Imaging and Ultra-fast Material Probing With Inverse...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

imaging simulation software based on Geometrical Optics Phase Contrast imaging simulation software based on Fresnel-Kirchhoff integrals Comparison among Phase...

423

Application of Neutron Imaging and Scattering to Fluid Flow and...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Application of Neutron Imaging and Scattering to Fluid Flow and Fracture in EGS Environments Application of Neutron Imaging and Scattering to Fluid Flow and Fracture in EGS...

424

An Automated Platform for High-Resolution Tissue Imaging Using...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

entire image is acquired. The performance of the system is demonstrated by imaging rat brain tissue sections. High resolution mass analysis combined with MSMS experiments enabled...

425

Fracture Network and Fluid Flow Imaging for EGS Applications...  

Broader source: Energy.gov (indexed) [DOE]

Fracture Network and Fluid Flow Imaging for EGS Applications from Multi-Dimensional Electrical Resistivity Structure Fracture Network and Fluid Flow Imaging for EGS Applications...

426

Imaging, Characterizing, and Modeling of Fracture Networks and...  

Office of Energy Efficiency and Renewable Energy (EERE) Indexed Site

Imaging, Characterizing, and Modeling of Fracture Networks and Fluid Flow in EGS Reservoirs Imaging, Characterizing, and Modeling of Fracture Networks and Fluid Flow in EGS...

427

COMPARISON OF ACOUSTIC AND ELECTRICAL IMAGE LOGS FROM THE COSO...  

Open Energy Info (EERE)

to permeability in the reservoir. Acoustic image logs reveal a similar natural fracture population, but generally image slightly fewer fractures, and do not reveal rock...

428

Method of imaging the heart using copper-64 citrate  

DOE Patents [OSTI]

A method of imaging the heart to provide a distinct image using positron emission tomography comprises administering copper-64 citrate and a compatible carrier.

Crook, James E. (Oak Ridge, TN)

1988-01-01T23:59:59.000Z

429

Reflective Terahertz Imaging for early diagnosis of skin burn severity  

E-Print Network [OSTI]

the brand area is also visualized in the THz images of thebrand shape is discernible as early as the post burn THz image.

TEWARI, PRIYAMVADA

2013-01-01T23:59:59.000Z

430

E-Print Network 3.0 - autoradiographic image intensification...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

RECEPTOR SUBUNIT Summary: . Digitized images over autoradiographs were acquired with NIH image software, maintaining the same... each temporal group were exposed to the same film....

431

Real-Time Virus Trapping and Fluorescent Imaging in Microfluidic  

E-Print Network [OSTI]

particles; however, this method requires the samples to be dried, fixed, coated, and laboriously prepared time, the images were collected with a computer running a video image capture

Bashir, Rashid

432

Vehicle Technologies Office Merit Review 2014: Neutron Imaging...  

Broader source: Energy.gov (indexed) [DOE]

Neutron Imaging of Advanced Transportation Technologies Vehicle Technologies Office Merit Review 2014: Neutron Imaging of Advanced Transportation Technologies Presentation given by...

433

Advanced 3D Geophysical Imaging Technologies for Geothermal Resource...  

Broader source: Energy.gov (indexed) [DOE]

Advanced 3D Geophysical Imaging Technologies for Geothermal Resource Characterization Advanced 3D Geophysical Imaging Technologies for Geothermal Resource Characterization Advanced...

434

Advanced 3D Geophysical Imaging Technologies for Geothermal Resource...  

Broader source: Energy.gov (indexed) [DOE]

Advanced 3D Geophysical Imaging Technologies for Geothermal Resource Characterization Advanced 3D Geophysical Imaging Technologies for Geothermal Resource Characterization DOE...

435

abscess imaging approach: Topics by E-print Network  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

may be necessary. 3 Kanishka W. Garvin; James H. Willig 2010-01-01 2 New Approach Fractal Image Compression Mathematics Websites Summary: MRCM New Approach Fractal Image...

436

A New Interpretation of the Scanning Tunneling Microscope Image...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

of Graphite. A New Interpretation of the Scanning Tunneling Microscope Image of Graphite. Abstract: In this work, highly-resolved scanning tunneling microscopy images of graphite...

437

Effects of Vehicle Image in Gasoline-Hybrid Electric Vehicles  

E-Print Network [OSTI]

of Vehicle Image in Gasoline-Hybrid Electric Vehicles Reidof Vehicle Image in Gasoline-Hybrid Electric Vehicles Reidhigh demand for gasoline-hybrid electric vehicles (HEVs)?

Heffner, Reid R.; Kurani, Kenneth S; Turrentine, Tom

2005-01-01T23:59:59.000Z

438

Micro-Spectroscopic Imaging and Characterization of Individually...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

Spectroscopic Imaging and Characterization of Individually Identified Ice Nucleating Particles from a Case Field Study. Micro-Spectroscopic Imaging and Characterization of...

439

Three-dimensional Chemical Imaging of Embedded Nanoparticles...  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

dimensional Chemical Imaging of Embedded Nanoparticles using Atom Probe Tomography. Three-dimensional Chemical Imaging of Embedded Nanoparticles using Atom Probe Tomography....

440

Single echo acquisition magnetic resonance imaging  

E-Print Network [OSTI]

The dramatic improvement in magnetic resonance imaging (MRI) scan time over the past fifteen years through gradient-based methods that sample k-space more efficiently and quickly cannot be sustained, as thresholds regarding hardware and safety...

McDougall, Mary Preston

2006-04-12T23:59:59.000Z

Note: This page contains sample records for the topic "hyperspectral imaging long-wave" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


441

Efficient implementation schemes for image enhancement filters  

E-Print Network [OSTI]

Generalized median filtering techniques that have appeared in previous literature suffer from some severe disadvantages. They are not only hardware intensive and time consuming but also tend to smear image edges. These shortcomings can be overcome...

Yusuf, Khadem Mahmud

2012-06-07T23:59:59.000Z

442

Wetpaint: Scraping Through Multi-Layered Images  

E-Print Network [OSTI]

We introduce a technique for exploring multi-layered images by scraping arbitrary areas to determine meaningful relationships. Our system, called Wetpaint, uses perceptual depth cues to help users intuitively navigate ...

Bonanni, Leonardo Amerigo

443

HEAVY-ION IMAGING APPLIED TO MEDICINE  

E-Print Network [OSTI]

heavy particles rat h er than the vax~at1.on 1n t h e x-rayprograms on the a PDPll-34 and VAX- 780 computers. The image

Fabrikant, J.I.

2013-01-01T23:59:59.000Z

444

Portable low-cost magnetic resonance imaging  

E-Print Network [OSTI]

Purpose: As the premiere modality for brain imaging, MRI could find wider applicability if lightweight, portable systems were available for siting in unconventional locations such as intensive care units (ICUs), physician ...

Cooley, Clarissa Zimmerman

2014-01-01T23:59:59.000Z

445

TECHNICAL REPORT VSG IMAGE PROCESSING AND  

E-Print Network [OSTI]

TECHNICAL REPORT VSG IMAGE PROCESSING AND ANALYSIS (VSG IPA) TOOLBOX Version 3.2 VSG IPA outlines the mechanism by which you can interface MATLAB with the VSG IPA toolbox functions. Each function

Whelan, Paul F.

446

Parallel magnetic resonance imaging: characterization and comparison  

E-Print Network [OSTI]

[Sodickson, 1997], GRAPPA [Griswold, 2002] and SPACE RIP [Kyriakos, 2000]; developed in the past decade have been studied, simulated and compared in this research. Because of the dependence of the parallel imaging methods on numerous factors such as receiver...

Rane, Swati Dnyandeo

2005-11-01T23:59:59.000Z

447

Japan Space Imaging Corporation Business Overview  

E-Print Network [OSTI]

Workshop #12;1 Company ProfileCompany Profile Date established May 11, 1998 Paid in capital JPY 490M (US $5 Service:Imagery Service: Image Search Service Search and DiscoverySearch and Discovery AOI Storage

448

Multimodality Imaging Atlas of Coronary Atherosclerosis  

E-Print Network [OSTI]

NEW HIGH-RESOLUTION IMAGING TECHNOLOGIES HAVE ENHANCED OUR UNDERSTANDING OF THE CORONARY atherosclerotic disease process, and this atlas provides a multimodality pictorial review of the development of histologically verified ...

Donnelly, Patrick

449

Frontiers in Chemical Imaging Seminar Series  

E-Print Network [OSTI]

Frontiers in Chemical Imaging Seminar Series On the trail of the Chimera The Atom the Chimera is still elusive. 1. Thomas F. Kelly and David J. Larson. Ann Rev. Materials Res 42 (2012) 1. 2

450

PMI Toolbox User's Guide Photon Migration Imaging  

E-Print Network [OSTI]

PMI Toolbox User's Guide 2/25/2002 1 Photon Migration Imaging Toolbox 2001 http Temple Place - Suite 330, Boston, MA 02111-1307, USA. http://www.gnu.org/copyleft/gpl.html #12;PMI

Boas, David

451

Lensless X-Ray Imaging in Reflection  

Broader source: All U.S. Department of Energy (DOE) Office Webpages (Extended Search)

X-Ray Imaging in Reflection Print Wednesday, 26 October 2011 00:00 The advent of x-ray free-electron laser (XFEL) light sources has led to an outburst of research activities...

452

Bioelectrical strategies for image-guided therapies  

E-Print Network [OSTI]

There is a pressing need in minimally-invasive surgery for novel imaging methods that can rapidly and accurately localize the surgical instrument and its target. We have developed two novel localization methods for the ...

Barley, Maya

2007-01-01T23:59:59.000Z

453

CMOS passive pixel image design techniques  

E-Print Network [OSTI]

CMOS technology provides an attractive alternative to the currently dominant CCD technology for implementing low-power, low-cost imagers with high levels of integration. Two pixel configurations are possible in CMOS ...

Fujimori, Iliana L. (Iliana Lucia)

2002-01-01T23:59:59.000Z

454

Fluid Imaging of Enhanced Geothermal Systems  

Broader source: Energy.gov (indexed) [DOE]

eere.energy.gov Velocity & Resistivity Imaging Possibility & Potential Fluid Filled Fracture Network? VpVs Ratio Map 500 m below sea level Conductivity Map 500 m below sea level...

455

David Brick, MD, FAAP, FACC Image credit  

E-Print Network [OSTI]

#12;David Brick, MD, FAAP, FACC #12;Image credit: www.imagewisely.org #12;1) Understand why Adolescent medicine 12-24 years Brain scans show unique features. Adult congenital Brand new natural

456

Signal and imaging sciences workshop proceedings  

SciTech Connect (OSTI)

Papers are presented in the areas of: Medical Technologies; Non-Destructive Evaluation; Applications of Signal/Image Processing; Laser Guide Star and Adaptive Optics; Computational Electromagnetic, Acoustics and Optics; Micro-Impulse Radar Processing; Optical Applications; TANGO Space Shuttle.

Candy, J.V.

1997-11-01T23:59:59.000Z

457

Blind assessment of localisation microscope image resolution  

E-Print Network [OSTI]

localisation precisions and densities. Methods By analysing localisation microscopy as a statistical method of Density Estimation, we present a method that produces a blind estimate of the resolution in a super-resolved image. This estimate is derived directly...

Rees, Eric J; Erdelyi, Miklos; Pinotsi, Dorothea; Knight, Alex; Metcalf, Daniel; Kaminski, Clemens F

2012-12-10T23:59:59.000Z

458

Subsurface imaging with reverse vertical seismic profiles  

E-Print Network [OSTI]

This thesis presents imaging results from a 3D reverse vertical seismic profile (RVSP) dataset measured at a hydrocarbon bearing pinnacle reef in northern Michigan. The study presented many challenges in seismic data ...

Krasovec, Mary L. (Mary Lee), 1972-

2001-01-01T23:59:59.000Z

459

Gigapixel Computational Imaging Oliver S. Cossairt  

E-Print Network [OSTI]

Gigapixel Computational Imaging Oliver S. Cossairt ollie@cs.columbia.edu Daniel Miau dm2701 size. As an example, consider the commercially available F/8 500mm focal length Schneider Apo

Nayar, Shree K.

460

Segmentation of medical images under topological constraints  

E-Print Network [OSTI]

Major advances in the field of medical imaging over the past two decades have provided physicians with powerful, non-invasive techniques to probe the structure, function, and pathology of the human body. This increasingly ...

Ségonne, Florent, 1976-

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "hyperspectral imaging long-wave" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


461

Synchrotron radiation imaging is a powerful tool to image brain microvasculature  

SciTech Connect (OSTI)

Synchrotron radiation (SR) imaging is a powerful experimental tool for micrometer-scale imaging of microcirculation in vivo. This review discusses recent methodological advances and findings from morphological investigations of cerebral vascular networks during several neurovascular pathologies. In particular, it describes recent developments in SR microangiography for real-time assessment of the brain microvasculature under various pathological conditions in small animal models. It also covers studies that employed SR-based phase-contrast imaging to acquire 3D brain images and provide detailed maps of brain vasculature. In addition, a brief introduction of SR technology and current limitations of SR sources are described in this review. In the near future, SR imaging could transform into a common and informative imaging modality to resolve subtle details of cerebrovascular function.

Zhang, Mengqi; Sun, Danni; Xie, Yuanyuan; Xia, Jian; Long, Hongyu; Hu, Kai; Xiao, Bo, E-mail: csuxiaobo123456@163.com [Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan 410008 (China)] [Department of Neurology, Xiangya Hospital, Central South University, Changsha, Hunan 410008 (China); Peng, Guanyun [Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800 (China)] [Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800 (China)

2014-03-15T23:59:59.000Z

462

Method for the reduction of image content redundancy in large image databases  

DOE Patents [OSTI]

A method of increasing information content for content-based image retrieval (CBIR) systems includes the steps of providing a CBIR database, the database having an index for a plurality of stored digital images using a plurality of feature vectors, the feature vectors corresponding to distinct descriptive characteristics of the images. A visual similarity parameter value is calculated based on a degree of visual similarity between features vectors of an incoming image being considered for entry into the database and feature vectors associated with a most similar of the stored images. Based on said visual similarity parameter value it is determined whether to store or how long to store the feature vectors associated with the incoming image in the database.

Tobin, Kenneth William (Harriman, TN); Karnowski, Thomas P. (Knoxville, TN)

2010-03-02T23:59:59.000Z

463

Reflective optical imaging method and circuit  

DOE Patents [OSTI]

An optical system compatible with short wavelength (extreme ultraviolet) radiation comprising four reflective elements for projecting a mask image onto a substrate. The four optical elements are characterized in order from object to image as convex, concave, convex and concave mirrors. The optical system is particularly suited for step and scan lithography methods. The invention increases the slit dimensions associated with ringfield scanning optics, improves wafer throughput and allows higher semiconductor device density.

Shafer, David R. (Fairfield, CT)

2001-01-01T23:59:59.000Z

464

Robust phase sensitive inversion recovery imaging  

E-Print Network [OSTI]

in all the cases was maintained constant with maximum variation rate of 0:026 cycles per pixel. : : : : : : : : 43 19 Phasesensitivereconstructionofimagewithveryhighbackground phase variation rate using block merging algorithm. (a) True image, (b) Real... re- construction, (d) PSIR image obtained using block merging algorithm. 46 21 Error vs. SNR plot for the region growing algorithm. The back- ground phase variation in all the cases was maintained constant with maximum variation rate of 0:026 cycles...

Garach, Ravindra Mahendrakumar

2005-11-01T23:59:59.000Z

465

Application of infrared imaging in ferrocyanide tanks  

SciTech Connect (OSTI)

This report analyzes the feasibility of using infrared imaging techniques and scanning equipment to detect potential hot spots within ferrocyanide waste tanks at the Hanford Site. A hot spot is defined as a volumetric region within a waste tank with an excessively warm temperature that is generated by radioactive isotopes. The thermal image of a hot spot was modeled by computer. this model determined the image an IR system must detect. Laboratory and field tests of the imaging system are described, and conclusions based on laboratory and field data are presented. The report shows that infrared imaging is capable of detecting hot spots in ferrocyanide waste tanks with depths of up to 3.94 m (155 in.). The infrared imaging system is a useful technology for initial evaluation and assessment of hot spots in the majority of ferrocyanide waste tanks at the Hanford Site. The system will not allow an exact hot spot and temperature determination, but it will provide the necessary information to determine the worst-case hot spot detected in temperature patterns. Ferrocyanide tanks are one type of storage tank on the Watch List. These tanks are identified as priority 1 Hanford Site Tank farm Safety Issues.

Morris, K.L.; Mailhot, R.B. Jr.; McLaren, J.M.; Morris, K.L.

1994-09-28T23:59:59.000Z

466

Stereo multiplexed holographic particle image velocimeter  

DOE Patents [OSTI]

A holographic particle image velocimeter employs stereoscopic recording of particle images, taken from two different perspectives and at two distinct points in time for each perspective, on a single holographic film plate. The different perspectives are provided by two optical assemblies, each including a collecting lens, a prism and a focusing lens. Collimated laser energy is pulsed through a fluid stream, with elements carried in the stream scattering light, some of which is collected by each collecting lens. The respective focusing lenses are configured to form images of the scattered light near the holographic plate. The particle images stored on the plate are reconstructed using the same optical assemblies employed in recording, by transferring the film plate and optical assemblies as a single integral unit to a reconstruction site. At the reconstruction site, reconstruction beams, phase conjugates of the reference beams used in recording the image, are directed to the plate, then selectively through either one of the optical assemblies, to form an image reflecting the chosen perspective at the two points in time.

Adrian, Ronald J. (Champaign, IL); Barnhart, Donald H. (Urbana, IL); Papen, George A. (Urbana, IL)

1996-01-01T23:59:59.000Z

467

Stereo multiplexed holographic particle image velocimeter  

DOE Patents [OSTI]

A holographic particle image velocimeter employs stereoscopic recording of particle images, taken from two different perspectives and at two distinct points in time for each perspective, on a single holographic film plate. The different perspectives are provided by two optical assemblies, each including a collecting lens, a prism and a focusing lens. Collimated laser energy is pulsed through a fluid stream, with elements carried in the stream scattering light, some of which is collected by each collecting lens. The respective focusing lenses are configured to form images of the scattered light near the holographic plate. The particle images stored on the plate are reconstructed using the same optical assemblies employed in recording, by transferring the film plate and optical assemblies as a single integral unit to a reconstruction site. At the reconstruction site, reconstruction beams, phase conjugates of the reference beams used in recording the image, are directed to the plate, then selectively through either one of the optical assemblies, to form an image reflecting the chosen perspective at the two points in time. 13 figs.

Adrian, R.J.; Barnhart, D.H.; Papen, G.A.

1996-08-20T23:59:59.000Z

468

Salvo: Seismic imaging software for complex geologies  

SciTech Connect (OSTI)

This report describes Salvo, a three-dimensional seismic-imaging software for complex geologies. Regions of complex geology, such as overthrusts and salt structures, can cause difficulties for many seismic-imaging algorithms used in production today. The paraxial wave equation and finite-difference methods used within Salvo can produce high-quality seismic images in these difficult regions. However this approach comes with higher computational costs which have been too expensive for standard production. Salvo uses improved numerical algorithms and methods, along with parallel computing, to produce high-quality images and to reduce the computational and the data input/output (I/O) costs. This report documents the numerical algorithms implemented for the paraxial wave equation, including absorbing boundary conditions, phase corrections, imaging conditions, phase encoding, and reduced-source migration. This report also describes I/O algorithms for large seismic data sets and images and parallelization methods used to obtain high efficiencies for both the computations and the I/O of seismic data sets. Finally, this report describes the required steps to compile, port and optimize the Salvo software, and describes the validation data sets used to help verify a working copy of Salvo.

OBER,CURTIS C.; GJERTSEN,ROB; WOMBLE,DAVID E.

2000-03-01T23:59:59.000Z

469

Semi-Automatic Image Annotation Using Event and Torso Identification  

E-Print Network [OSTI]

Semi-Automatic Image Annotation Using Event and Torso Identification Bongwon Suh, Benjamin B. Bulk annotation, where multiple images are annotated at once, is a desired feature for image management for automatically creating meaningful image clusters for efficient bulk annotation. These techniques are not perfect

Golbeck, Jennifer

470

Hindawi Publishing Corporation International Journal of Biomedical Imaging  

E-Print Network [OSTI]

Hindawi Publishing Corporation International Journal of Biomedical Imaging Volume 2006, Article ID, functional, cel- lular, and molecular imaging. The overall goal of the Inter- national Journal of Biomedical the current imaging journals handle. In addition, there are new imag- ing areas that are not specifically

Virginia Tech

471

The Method of Small-Volume Expansions for Medical Imaging  

E-Print Network [OSTI]

elastography (MRE), impediogra- phy, magneto-acoustic imaging, infrared thermography, and acoustic radiation

Ammari, Habib

472

15 Acoustic Daylight Imaging in the Michael J. Buckingham  

E-Print Network [OSTI]

15 Acoustic Daylight Imaging in the Ocean Michael J. Buckingham Scripps Institution of Oceanography . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 418 15.4 Acoustic daylight images . . . . . . . . . . . . . . . . . . . . . . . . 420 15.5 Concluding. Sensors and Imaging ISBN 0­12­379771­3/$30.00 #12;416 15 Acoustic Daylight Imaging in the Ocean Acoustic

Buckingham, Michael

473

Image Forgery Detection Using Multi-Resolution Weber Local Descriptors  

E-Print Network [OSTI]

Image Forgery Detection Using Multi-Resolution Weber Local Descriptors Muhammad Hussain1 , Ghulam * ghulam@ksu.edu.sa Abstract-- In this paper, a multi-resolution Weber law descriptors (WLD) based image of the images. Keywords: image forgery detection, Weber local descriptor, splicing forgery, copy-move forgery

Bebis, George

474

The Segmentation of Sparse MR Images Patrick Craig Marais  

E-Print Network [OSTI]

The Segmentation of Sparse MR Images Patrick Craig Marais A thesis submitted to the Department of Sparse MR Images Patrick C. Marais A thesis submitted for the degree of Doctor of Philosophy ``sparse'' MR images. Sparse images were acquired in large numbers prior to the emergence of high

Marais, Patrick

475

JPEG2000-based Viewer Guidance for Mobile Image Browsing  

E-Print Network [OSTI]

is needed - the new image must only be decoded. The same principle is applied for image transmission, where properties of the new and flexible image coding standard JPEG2000 for creation and transmission- quires less bandwidth during image transmission. Regard- ing the main limitations of mobile devices

Rosenbaum, Rene

476

Methods for increasing the sensitivity of gamma-ray imagers  

DOE Patents [OSTI]

Methods are presented that increase the position resolution and granularity of double sided segmented semiconductor detectors. These methods increase the imaging resolution capability of such detectors, either used as Compton cameras, or as position sensitive radiation detectors in imagers such as SPECT, PET, coded apertures, multi-pinhole imagers, or other spatial or temporal modulated imagers.

Mihailescu, Lucian (Pleasanton, CA); Vetter, Kai M. (Alameda, CA); Chivers, Daniel H. (Fremont, CA)

2012-02-07T23:59:59.000Z

477

Near-infrared spectroscopic tissue imaging for medical applications  

DOE Patents [OSTI]

Near infrared imaging using elastic light scattering and tissue autofluorescence are explored for medical applications. The approach involves imaging using cross-polarized elastic light scattering and tissue autofluorescence in the Near Infra-Red (NIR) coupled with image processing and inter-image operations to differentiate human tissue components.

Demos; Stavros (Livermore, CA), Staggs; Michael C. (Tracy, CA)

2006-03-21T23:59:59.000Z

478

Near-infrared spectroscopic tissue imaging for medical applications  

DOE Patents [OSTI]

Near infrared imaging using elastic light scattering and tissue autofluorescence are explored for medical applications. The approach involves imaging using cross-polarized elastic light scattering and tissue autofluorescence in the Near Infra-Red (NIR) coupled with image processing and inter-image operations to differentiate human tissue components.

Demos, Stavros (Livermore, CA); Staggs, Michael C. (Tracy, CA)

2006-12-12T23:59:59.000Z

479

Systems for increasing the sensitivity of gamma-ray imagers  

DOE Patents [OSTI]

Systems that increase the position resolution and granularity of double sided segmented semiconductor detectors are provided. These systems increase the imaging resolution capability of such detectors, either used as Compton cameras, or as position sensitive radiation detectors in imagers such as SPECT, PET, coded apertures, multi-pinhole imagers, or other spatial or temporal modulated imagers.

Mihailescu, Lucian; Vetter, Kai M.; Chivers, Daniel H.

2012-12-11T23:59:59.000Z

480

What is Imaging Science? With the word "imaging" in the name, many people think  

E-Print Network [OSTI]

is created because we want someone to feel something, or learn something, or do something. That's why imaging is all about photography. That's not the case. Photographers are artists. They want to make pictures that imaging scientists have to know something about each of these subjects in order to do their job. That may

Zanibbi, Richard

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481

Modeling the imaging performance of prototype organic x-ray imagers  

SciTech Connect (OSTI)

A unified Monte Carlo and cascaded systems model for the simulation of active-matrix flat-panel imagers is presented. With few input parameters, the model simulated the imaging performance of previously measured flat-panel imagers with reasonable accuracy. The model is used to predict the properties of conceptual flat-panel imagers based on organic semiconductors on plastic substrates. The model suggests that significant improvements in resolution and detective quantum efficiency could be achieved by operating such a detector in a back-side illuminated configuration, or by employing two imaging arrays arranged face-to-face. The effect of semiconductor properties on the conceptual imagers is investigated. According to the model, a photodiode quantum efficiency of 25% and dark current of less than 100 pA mm{sup -2} would be satisfactory for a prototype imager, while a competitive imager would require a photodiode quantum efficiency of 40-50% with a dark current of less than 10 pA mm{sup -2} to be quantum limited over the radiographic exposure range.

Blakesley, J. C.; Speller, R. [Department of Medical Physics and Bioengineering, University College London, London WC1E 6BT, United Kingdom and Department of Physics, University of Cambridge, Cambridge CB3 OHE (United Kingdom); Department of Medical Physics and Bioengineering, University College London, London WC1E 6BT (United Kingdom)

2008-01-15T23:59:59.000Z

482

Image Forensics of Digital Cameras by Analysing Image Variations using Statistical Process Control  

E-Print Network [OSTI]

the novel use of Statistical Process Control (SPC) as a tool for identifying anomalies in digital cameras, by analysing image variations. We apply SPC on six low-end cameras, and one mid-range camera. By plotting the mean distribution of image pixel data through control charts, we have been able to identify a clear

Doran, Simon J.

483

Compensation du mouvement respiratoire dans les images TEP Respiratory motion correction in PET images  

E-Print Network [OSTI]

Compensation du mouvement respiratoire dans les images TEP Respiratory motion correction in PET itérative. Abstract The quality of the Positron Emission Tomography (PET) is currently limited an integrated system to compensate respiratory motion in PET images. It is based on synchronous acquisition

Paris-Sud XI, Université de

484

ALLAN, VERBEEK: RANKING USER-ANNOTATED IMAGES 1 Ranking user-annotated images for multiple  

E-Print Network [OSTI]

, for example, the user enters the search terms `cat' and `dog', we can quickly find potentially-relevant images, and that performance when searching for multiple terms can be increased by learning a new combined model and taking be increased by rejecting images from `untrustwor- thy' users. We focus on search queries for multiple terms

Paris-Sud XI, Université de

485

RIT IMAGING BASH COME ONE, COME ALL, Submit an IMAGE that encapsulates an  

E-Print Network [OSTI]

to expression astronomy to biomedical printing to digital display ethics to cinema engineering to vision remote.cis.rit.edu/ImagingBash for past years' entries R I TCENTER FOR IMAGING SCIENCE ROCHESTER INSTITUTE OF TECHNOLOGY 6 JUNE 2011 3 PM

Zanibbi, Richard

486

Clinical Imaging and Intervention in Cancer: Imaging and Cryotherapy in Renal Cancer  

E-Print Network [OSTI]

Clinical Imaging and Intervention in Cancer: Imaging and Cryotherapy in Renal Cancer Graeme Houston Fluoroscopy 2 #12;Treatments for Cancer Palliative ­ Relief of obstruction ­ Reduce Bleeding ­ Pain Control ­ Avoid complications Disease Modifying 4 #12;Disease Modifying Cancer Treatment In Situ Ablation

Greenaway, Alan

487

Illumination-Based Image Synthesis: Creating Novel Images of Human Faces Under Di ering Pose and Lighting  

E-Print Network [OSTI]

methods, the Lumigraph 12, 19 exhaustively sam- ples the ray space and renders images of an object fromIllumination-Based Image Synthesis: Creating Novel Images of Human Faces Under Di ering Pose-8267 Urbana, IL 61801 Abstract We present an illumination-based method for synthe- sizing images of an object

Yang, Junfeng

488

982 IEEE TRANSACTIONS ON IMAGE PROCESSING, VOL. 18, NO. 5, MAY 2009 Bayesian Separation of Images Modeled  

E-Print Network [OSTI]

on a statistical model of the gradient image, and we use a fully Bayesian method with modified-Gibbs sam- pling. We982 IEEE TRANSACTIONS ON IMAGE PROCESSING, VOL. 18, NO. 5, MAY 2009 Bayesian Separation of Images fields within a Bayesian framework. The Bayesian for- mulation enables the incorporation of prior image

489

Eur J Nucl Med Mol Imaging . Author manuscript The age of reason for FDG PET image-derived indices  

E-Print Network [OSTI]

Eur J Nucl Med Mol Imaging . Author manuscript Page /1 3 The age of reason for FDG PET image Author Keywords image derived parameters ; 18F-FDG-PET ; prediction ; prognosis ; therapy response The clinical use of Positron Emission Tomography (PET) imaging using the 2-deoxy-2-(18F

Paris-Sud XI, Université de

490

128 IEEE TRANSACTIONS ON MEDICAL IMAGING, VOL. 25, NO. 1, JANUARY 2006 Unwrapping of MR Phase Images Using a  

E-Print Network [OSTI]

128 IEEE TRANSACTIONS ON MEDICAL IMAGING, VOL. 25, NO. 1, JANUARY 2006 Unwrapping of MR Phase of blood flow [1], [2]. Extracting the phase image from its measured complex MR image is nontrivial because, phase unwrapping. I. INTRODUCTION A. Background Magnetic resonance (MR) phase images often contain

Koetter, Ralf

491

106 IEEE TRANSACTIONS ON MEDICAL IMAGING, VOL. 29, NO. 1, JANUARY 2010 Feature Based Nonrigid Brain MR Image Registration  

E-Print Network [OSTI]

106 IEEE TRANSACTIONS ON MEDICAL IMAGING, VOL. 29, NO. 1, JANUARY 2010 Feature Based Nonrigid Brain MR Image Registration With Symmetric Alpha Stable Filters Shu Liao* and Albert C. S. Chung Abstract--A new feature based nonrigid image registration method for magnetic resonance (MR) brain images

Chung, Albert C. S.

492

Three Dimensional Molecular Imaging for Lignocellulosic Materials  

SciTech Connect (OSTI)

The development of high efficiency, inexpensive processing protocols to render biomass components into fermentable substrates for the sequential processing of cell wall components into fuels and important feedstocks for the biorefinery of the future is a key goal of the national roadmap for renewable energy. Furthermore, the development of such protocols depends critically on detailed knowledge of the spatial and temporal infiltration of reagents designed to remove and separate the phenylpropenoid heteropolymer (lignin) from the processable sugar components sequestered in the rigid cell walls of plants. A detailed chemical and structural understanding of this pre-enzymatic processing in space and time was the focus of this program. We worked to develop new imaging strategies that produce real-time molecular speciation information in situ; extract sub-surface information about the effects of processing; and follow the spatial and temporal characteristics of the molecular species in the matrix and correlate this complex profile with saccharification. Spatially correlated SIMS and Raman imaging were used to provide high quality, high resolution subcellular images of Miscanthus cross sections. Furthermore, the combination of information from the mass spectrometry and Raman scattering allows specific chemical assignments of observed structures, difficult to assign from either imaging approach alone and lays the foundation for subsequent heterocorrelated imaging experiments targeted at more challenging biological systems, such as the interacting plant-microbe systems relevant to the rhizosphere.

Bohn, Paul W.; Sweedler, Jonathan V.

2011-06-09T23:59:59.000Z

493

Distributed computing of Seismic Imaging Algorithms  

E-Print Network [OSTI]

The primary use of technical computing in the oil and gas industries is for seismic imaging of the earth's subsurface, driven by the business need for making well-informed drilling decisions during petroleum exploration and production. Since each oil/gas well in exploration areas costs several tens of millions of dollars, producing high-quality seismic images in a reasonable time can significantly reduce the risk of drilling a "dry hole". Similarly, these images are important as they can improve the position of wells in a billion-dollar producing oil field. However seismic imaging is very data- and compute-intensive which needs to process terabytes of data and require Gflop-years of computation (using "flop" to mean floating point operation per second). Due to the data/computing intensive nature of seismic imaging, parallel computing are used to process data to reduce the time compilation. With introducing of Cloud computing, MapReduce programming model has been attracted a lot of attention in parallel and di...

Emami, Masnida; Jaberi, Nasrin

2012-01-01T23:59:59.000Z

494

High power THz sources for nonlinear imaging  

SciTech Connect (OSTI)

Many biological and chemical compounds have unique absorption features in the THz (0.1 - 10 THz) region, making the use of THz waves attractive for imaging in defense, security, biomedical imaging, and monitoring of industrial processes. Unlike optical radiation, THz frequencies can pass through many substances such as paper, clothing, ceramic, etc. with little attenuation. The use of currently available THz systems is limited by lack of highpower, sources as well as sensitive detectors and detector arrays operating at room temperature. Here we present a novel, high power THz source based on intracavity downconverison of optical pulses. The source delivers 6 ps pulses at 1.5 THz, with an average power of >300 ?W and peak powers >450 mW. We propose an imaging method based on frequency upconverison that is ideally suited to use the narrow bandwidth and high peak powers produced by the source. By upconverting the THz image to the infrared, commercially available detectors can be used for real time imaging.

Tekavec, Patrick F.; Kozlov, Vladimir G. [Microtech Instruments, 858 West Park Street, Eugene, OR 97401 (United States)

2014-02-18T23:59:59.000Z

495

Image Artifacts Resulting from Gamma-Ray Tracking Algorithms Used with Compton Imagers  

SciTech Connect (OSTI)

For Compton imaging it is necessary to determine the sequence of gamma-ray interactions in a single detector or array of detectors. This can be done by time-of-flight measurements if the interactions are sufficiently far apart. However, in small detectors the time between interactions can be too small to measure, and other means of gamma-ray sequencing must be used. In this work, several popular sequencing algorithms are reviewed for sequences with two observed events and three or more observed events in the detector. These algorithms can result in poor imaging resolution and introduce artifacts in the backprojection images. The effects of gamma-ray tracking algorithms on Compton imaging are explored in the context of the 4? Compton imager built by the University of Michigan.

Seifert, Carolyn E.; He, Zhong

2005-10-01T23:59:59.000Z

496

INTERSTELLAR NEUTRAL ATOMS AT 1 AU OBSERVED BY THE IMAGE/LENA IMAGER  

SciTech Connect (OSTI)

Observations from the Imager for Magnetopause to Aurora: Global Exploration (IMAGE) Low Energy Neutral Atom (LENA) imager from 2005 are used to investigate characteristics of interstellar neutrals in the inner solar system. The LENA imager detected an interstellar neutral signal starting in 2004 December and extending to early 2005 April. Using the orientation of the field of view of the imager and the date of the loss of the interstellar neutral signal, it is concluded that the signal is consistent with a relatively compact (several degrees wide in ecliptic latitude and longitude) source of neutral helium and/or energetic (>150 eV) hydrogen originating from the solar apex direction. Observations later in 2005 are used to distinguish the composition and conclude that the relatively compact source likely contains some energetic hydrogen (in addition to the helium)

Fuselier, S. A.; Ghielmetti, A. G. [Lockheed Martin Advanced Technology Center, Palo Alto, CA (United States); Wurz, P. [Physikalishes Institut, University of Bern, CH-3012, Bern (Switzerland)], E-mail: Stephen.a.fuselier@lmco.com, E-mail: gmetti@mail.spasci.com, E-mail: peter.wurz@space.unibe.ch

2009-06-20T23:59:59.000Z

497

Isotropic 3D fast spin-echo imaging versus standard 2D imaging at 3.0 T of the knee—image quality and diagnostic performance  

E-Print Network [OSTI]

SB (2007) High-resolution 3D cartilage imaging with IDEALMa Thomas M. Link Isotropic 3D fast spin-echo imaging versusintermediate-weighted (IM-w) 3D fast spin-echo (FSE) se-

2009-01-01T23:59:59.000Z

498

2D microwave imaging reflectometer electronics  

SciTech Connect (OSTI)

A 2D microwave imaging reflectometer system has been developed to visualize electron density fluctuations on the DIII-D tokamak. Simultaneously illuminated at four probe frequencies, large aperture optics image reflections from four density-dependent cutoff surfaces in the plasma over an extended region of the DIII-D plasma. Localized density fluctuations in the vicinity of the plasma cutoff surfaces modulate the plasma reflections, yielding a 2D image of electron density fluctuations. Details are presented of the receiver down conversion electronics that generate the in-phase (I) and quadrature (Q) reflectometer signals from which 2D density fluctuation data are obtained. Also presented are details on the control system and backplane used to manage the electronics as well as an introduction to the computer based control program.

Spear, A. G.; Domier, C. W., E-mail: cwdomier@ucdavis.edu; Hu, X.; Muscatello, C. M.; Ren, X.; Luhmann, N. C. [Electrical and Computer Engineering, University of California, Davis, California 95616 (United States); Tobias, B. J. [Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543 (United States)

2014-11-15T23:59:59.000Z

499

A software framework for image processing  

SciTech Connect (OSTI)

There exists a great potential for the development of customizable image processing software that accommodates a wide variety of customers and applications. Such software would be able to read and process the many common image file formats, in addition to allowing the incorporation of those that have been custom made. Furthermore, the software would have the ability to handle the infinite variety of accompanying support files, which can contain quite different information for various applications and customers. A software framework designed to read and process this wide variety of input image files and support files would be extremely valuable. This paper develops the foundation of this proposed software architecture by using a composite of several common design patterns. Any similar software framework required to process input information and corresponding algorithms can benefit from the exposition of these composite design structures.

Garren, D.A. [Raytheon E-Systems, Garland Operations, TX (United States)

1996-12-31T23:59:59.000Z

500

Scannerless laser range imaging using loss modulation  

DOE Patents [OSTI]

A scannerless 3-D imaging apparatus is disclosed which utilizes an amplitude modulated cw light source to illuminate a field of view containing a target of interest. Backscattered light from the target is passed through one or more loss modulators which are modulated at the same frequency as the light source, but with a phase delay .delta. which can be fixed or variable. The backscattered light is demodulated by the loss modulator and detected with a CCD, CMOS or focal plane array (FPA) detector to construct a 3-D image of the target. The scannerless 3-D imaging apparatus, which can operate in the eye-safe wavelength region 1.4-1.7 .mu.m and which can be constructed as a flash LADAR, has applications for vehicle collision avoidance, autonomous rendezvous and docking, robotic vision, industrial inspection and measurement, 3-D cameras, and facial recognition.

Sandusky, John V. (Albuquerque, NM)

2011-08-09T23:59:59.000Z