Spatially assisted down-track median filter for GPR image post-processing

Paglieroni, David W; Beer, N Reginald

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Title: Spatially assisted down-track median filter for GPR image post-processing

Abstract

A method and system for detecting the presence of subsurface objects within a medium is provided. In some embodiments, the imaging and detection system operates in a multistatic mode to collect radar return signals generated by an array of transceiver antenna pairs that is positioned across the surface and that travels down the surface. The imaging and detection system pre-processes the return signal to suppress certain undesirable effects. The imaging and detection system then generates synthetic aperture radar images from real aperture radar images generated from the pre-processed return signal. The imaging and detection system then post-processes the synthetic aperture radar images to improve detection of subsurface objects. The imaging and detection system identifies peaks in the energy levels of the post-processed image frame, which indicates the presence of a subsurface object.

Inventors:: Paglieroni, David W; Beer, N Reginald

Issue Date:: 2014-10-07

Research Org.:: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1159985

Patent Number(s):: 8854249

Application Number:: 13/219,493

Assignee:: Lawrence Livermore National Security, LLC (Livemore, CA)

Patent Classifications (CPCs):: G - PHYSICS G01 - MEASURING G01S - RADIO DIRECTION-FINDING

G - PHYSICS G01 - MEASURING G01V - GEOPHYSICS

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G - PHYSICS G01 - MEASURING G01S - RADIO DIRECTION-FINDING
G01S13/003 - {Bistatic radar systems
G01S13/885 - {for ground probing
G01S13/90 - using synthetic aperture techniques {, e.g. synthetic aperture radar [SAR] techniques}

G - PHYSICS G01 - MEASURING G01V - GEOPHYSICS
G01V3/12 - operating with electromagnetic waves {
G01V3/15 - specially adapted for use during transport, e.g. by a person, vehicle or boat

G - PHYSICS G06 - COMPUTING G06N - COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS
G06N99/00 - Subject matter not provided for in other groups of this subclass

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DOE Contract Number:: AC52-07NA27344

Resource Type:: Patent

Resource Relation:: Patent File Date: 2011 Aug 26

Country of Publication:: United States

Language:: English

Subject:: 47 OTHER INSTRUMENTATION

Citation Formats


                    Paglieroni, David W, and Beer, N Reginald. Spatially assisted down-track median filter for GPR image post-processing.  United States: N. p., 2014. 
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                    Paglieroni, David W, & Beer, N Reginald. Spatially assisted down-track median filter for GPR image post-processing.  United States.

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                    Paglieroni, David W, and Beer, N Reginald. Tue .  
        "Spatially assisted down-track median filter for GPR image post-processing".  United States.  https://www.osti.gov/servlets/purl/1159985.

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@article{osti_1159985,

  title        = {Spatially assisted down-track median filter for GPR image post-processing},

  author       = {Paglieroni, David W and Beer, N Reginald},

  abstractNote = {A method and system for detecting the presence of subsurface objects within a medium is provided. In some embodiments, the imaging and detection system operates in a multistatic mode to collect radar return signals generated by an array of transceiver antenna pairs that is positioned across the surface and that travels down the surface. The imaging and detection system pre-processes the return signal to suppress certain undesirable effects. The imaging and detection system then generates synthetic aperture radar images from real aperture radar images generated from the pre-processed return signal. The imaging and detection system then post-processes the synthetic aperture radar images to improve detection of subsurface objects. The imaging and detection system identifies peaks in the energy levels of the post-processed image frame, which indicates the presence of a subsurface object.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2014},

  month        = {10}

}

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Spot restoration for GPR image post-processing

Patent Paglieroni, David W; Beer, N. Reginald

A method and system for detecting the presence of subsurface objects within a medium is provided. In some embodiments, the imaging and detection system operates in a multistatic mode to collect radar return signals generated by an array of transceiver antenna pairs that is positioned across the surface and that travels down the surface. The imaging and detection system pre-processes the return signal to suppress certain undesirable effects. The imaging and detection system then generates synthetic aperture radar images from real aperture radar images generated from the pre-processed return signal. The imaging and detection system then post-processes the synthetic aperturemore » « less
Full Text Available
Spatially adaptive migration tomography for multistatic GPR imaging

Patent Paglieroni, David W; Beer, N. Reginald

A method and system for detecting the presence of subsurface objects within a medium is provided. In some embodiments, the imaging and detection system operates in a multistatic mode to collect radar return signals generated by an array of transceiver antenna pairs that is positioned across the surface and that travels down the surface. The imaging and detection system pre-processes the return signal to suppress certain undesirable effects. The imaging and detection system then generates synthetic aperture radar images from real aperture radar images generated from the pre-processed return signal. The imaging and detection system then post-processes the synthetic aperturemore » « less
Full Text Available
Imaging, object detection, and change detection with a polarized multistatic GPR array

Patent Beer, N. Reginald; Paglieroni, David W.

A polarized detection system performs imaging, object detection, and change detection factoring in the orientation of an object relative to the orientation of transceivers. The polarized detection system may operate on one of several modes of operation based on whether the imaging, object detection, or change detection is performed separately for each transceiver orientation. In combined change mode, the polarized detection system performs imaging, object detection, and change detection separately for each transceiver orientation, and then combines changes across polarizations. In combined object mode, the polarized detection system performs imaging and object detection separately for each transceiver orientation, and thenmore » « less
Full Text Available
Buried object detection in GPR images

Patent Paglieroni, David W; Chambers, David H; Bond, Steven W; ...

A method and system for detecting the presence of subsurface objects within a medium is provided. In some embodiments, the imaging and detection system operates in a multistatic mode to collect radar return signals generated by an array of transceiver antenna pairs that is positioned across the surface and that travels down the surface. The imaging and detection system pre-processes the return signal to suppress certain undesirable effects. The imaging and detection system then generates synthetic aperture radar images from real aperture radar images generated from the pre-processed return signal. The imaging and detection system then post-processes the synthetic aperturemore » « less
Full Text Available
Zero source insertion technique to account for undersampling in GPR imaging

Patent Chambers, David H; Mast, Jeffrey E; Paglieroni, David W

A method and system for detecting the presence of subsurface objects within a medium is provided. In some embodiments, the imaging and detection system operates in a multistatic mode to collect radar return signals generated by an array of transceiver antenna pairs that is positioned across the surface and that travels down the surface. The imaging and detection system pre-processes the return signal to suppress certain undesirable effects. The imaging and detection system then generates synthetic aperture radar images from real aperture radar images generated from the pre-processed return signal. The imaging and detection system then post-processes the synthetic aperturemore » « less
Full Text Available

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Title: Spatially assisted down-track median filter for GPR image post-processing

Abstract

Citation Formats

System for reducing speckle noise patent, November 1988

System for detecting underground objects patent, June 1989

Synthetic aperture radar guidance system and method of operating same patent, June 1995

Synthetic aperture radar guidance system and method of operating same patent, July 1995

Automatic position calculating imaging radar with low-cost synthetic aperture sensor for imaging layered media patent, August 1998

Ultra wideband ground penetrating radar imaging of heterogeneous solids patent, November 1998

Method and apparatus for identifying buried objects using ground penetrating radar patent, April 2006

Method and system for forming an image with enhanced contrast and/or reduced noise patent, September 2010

Detection of a concealed object patent, November 2010

Synthetic aperture integration (SAI) algorithm for SAR imaging patent, July 2013

Spatially adaptive migration tomography for multistatic GPR imaging patent, August 2013

Radar signal pre-processing to suppress surface bounce and multipath patent, December 2013

Zero source insertion technique to account for undersampling in GPR imaging patent, February 2014

Detection of a concealed object patent-application, July 2004

Depth-based surveillance imaging patent-application, July 2006

Depth-based surveillance image reconstruction patent-application, July 2006

Spotlight synthetic aperture radar (SAR) system and method for generating a SAR map in real-time using a modified polar format algorithm (PFA) approach patent-application, August 2007

Detection of a Concealed Object patent-application, June 2009

Image Reducing Apparatus and Reduced Image Generating Method patent-application, June 2009

Method and System for Forming Images by Comparing Subsets of Image Data patent-application, August 2012

Real-Time System for Imaging and Object Detection with a Multistatic GPR Array patent-application, April 2013

Distributed Road Assessment System patent-application, April 2013

Classification of Subsurface Objects Using Singular Values Derived from Signal Frames patent-application, April 2013

Spatially Adaptive Migration Tomography for Multistatic GPR Imaging patent-application, April 2013

Buried Object Detection in GPR Images patent-application, April 2013

Spot Restoration for GPR Image Post-Processing patent-application, April 2013

Radar Signal Pre-Processing to Suppress Surface Bounce and Multipath patent-application, April 2013

Determining Root Correspondence Between Previously and Newly Detected Objects patent-application, April 2013

Synthetic Aperture Integration (SAI) Algorithm for SAR Imaging patent-application, April 2013

Attribute and Topology Based Change Detection in a Constellation of Previously Detected Objects patent-application, April 2013

Range-Cued Object Segmentation System and Method patent-application, September 2013

MUSIC‐Type Electromagnetic Imaging of a Collection of Small Three‐Dimensional Inclusions journal, January 2007

A MUSIC Algorithm for Locating Small Inclusions Buried in a Half-Space from the Scattering Amplitude at a Fixed Frequency journal, January 2005

Validation of 2d iNverse Scattering Algorithms From Multi-Frequency Experimental Data journal, January 2000

Time Reversal Experiments In The Microwave Range: Description Of The Radar And Results journal, January 2010

Target Characterization Using Time-Reversal Symmetry Of Wave Propagation journal, August 2007

Analysis of the Time-Reversal Operator for a Small Spherical Scatterer in an Electromagnetic Field journal, July 2004

Target characterization using decomposition of the time-reversal operator: electromagnetic scattering from small ellipsoids journal, October 2006

Time-Reversal Analysis for Scatterer Characterization journal, January 2004

Fuzzy-attribute graph with application to Chinese character recognition journal, January 1992

A Two-Step Procedure for Characterizing Obstacles Under a Rough Surface From Bistatic Measurements journal, September 2007

Multistatic Ground-Penetrating Radar Experiments journal, August 2007

Time-domain processing of electromagnetic data for multiple-target detection conference, January 2009

Ground Penetrating Radar for Buried Landmine and IED Detection book, January 2009

A review of GPR for landmine detection journal, September 2006

An assessment of the fundamental performance of GPR against buried landmines conference, April 2007

Classification of landmines using GPR conference, May 2008

Time reversal imaging of obscured targets from multistatic data journal, May 2005

Localization and characterization of two-dimensional targets buried in a cluttered environment journal, November 2004

Retrieval of inhomogeneous targets from experimental frequency diversity data journal, November 2005

Imaging of dielectric cylinders from experimental stepped-frequency data journal, April 2006

Pre-stack migration applied to GPR for landmine detection journal, November 2004

Time-reversed acoustics journal, November 2000

Acoustic time-reversal mirrors journal, January 2001

Detecting landmines with ground-penetrating radar using feature-based rules, order statistics, and adaptive whitening journal, November 2004

Detection of land-mines using ultra-wideband radar data and time–frequency signal analysis journal, January 2004

Derivation and comparison of SAR and frequency-wavenumber migration within a common inverse scalar wave problem formulation journal, June 2006

General convergence results for linear discriminant updates conference, January 1997

Multistatic Response Matrix of a 3-D Inclusion in Half Space and MUSIC Imaging journal, September 2007

Multistatic Response Matrix of Spherical Scatterers and the Back-Propagation of Singular Fields journal, March 2008

UWB Tomographic Radar Imaging of Penetrable and Impenetrable Objects journal, February 2009

The Hungarian method for the assignment problem journal, March 1955

Optimizing the Area Under a Receiver Operating Characteristic Curve With Application to Landmine Detection journal, February 2007

Three-dimensional ground-penetrating radar imaging using multifrequency diffraction tomography conference, September 1994

Three-dimensional ground-penetrating radar imaging using synthetic aperture time-domain focusing conference, September 1994

DORT method as applied to ultrawideband signals for detection of buried objects journal, August 2003

Eigenmodes of the time reversal operator: A solution to selective focusing in multiple-target media journal, September 1994

Reconstruction of buried objects surrounded by small inhomogeneities journal, October 2000

3D wavefront image formation for NIITEK GPR conference, May 2009

The efficacy of human observation for discrimination and feature identification of targets measured by the NIITEK ground-penetrating radar conference, September 2004

Constrained filter optimization for subsurface landmine detection conference, May 2006

Application of the LMC algorithm to anomaly detection using the Wichmann/NIITEK ground-penetrating radar conference, September 2003

Decomposition of the Time Reversal Operator for Electromagnetic Scattering journal, January 1999

Error-Correcting Isomorphisms of Attributed Relational Graphs for Pattern Analysis journal, January 1979

Resonances of perfectly conducting wires and bodies of revolution buried in a lossy dispersive half-space journal, January 1996

Short-pulse plane-wave scattering from buried perfectly conducting bodies of revolution journal, January 1996

A Large-Scale Systematic Evaluation of Algorithms Using Ground-Penetrating Radar for Landmine Detection and Discrimination journal, August 2007

System for reducing speckle noise
patent, November 1988

System for detecting underground objects
patent, June 1989

Synthetic aperture radar guidance system and method of operating same
patent, June 1995

Synthetic aperture radar guidance system and method of operating same
patent, July 1995

Automatic position calculating imaging radar with low-cost synthetic aperture sensor for imaging layered media
patent, August 1998

Ultra wideband ground penetrating radar imaging of heterogeneous solids
patent, November 1998

Method and apparatus for identifying buried objects using ground penetrating radar
patent, April 2006

Method and system for forming an image with enhanced contrast and/or reduced noise
patent, September 2010

Detection of a concealed object
patent, November 2010

Synthetic aperture integration (SAI) algorithm for SAR imaging
patent, July 2013

Spatially adaptive migration tomography for multistatic GPR imaging
patent, August 2013

Radar signal pre-processing to suppress surface bounce and multipath
patent, December 2013

Zero source insertion technique to account for undersampling in GPR imaging
patent, February 2014

Detection of a concealed object
patent-application, July 2004

Depth-based surveillance imaging
patent-application, July 2006

Depth-based surveillance image reconstruction
patent-application, July 2006

Spotlight synthetic aperture radar (SAR) system and method for generating a SAR map in real-time using a modified polar format algorithm (PFA) approach
patent-application, August 2007

Detection of a Concealed Object
patent-application, June 2009

Image Reducing Apparatus and Reduced Image Generating Method
patent-application, June 2009

Method and System for Forming Images by Comparing Subsets of Image Data
patent-application, August 2012

Real-Time System for Imaging and Object Detection with a Multistatic GPR Array
patent-application, April 2013

Distributed Road Assessment System
patent-application, April 2013

Classification of Subsurface Objects Using Singular Values Derived from Signal Frames
patent-application, April 2013

Spatially Adaptive Migration Tomography for Multistatic GPR Imaging
patent-application, April 2013

Buried Object Detection in GPR Images
patent-application, April 2013

Spot Restoration for GPR Image Post-Processing
patent-application, April 2013

Radar Signal Pre-Processing to Suppress Surface Bounce and Multipath
patent-application, April 2013

Determining Root Correspondence Between Previously and Newly Detected Objects
patent-application, April 2013

Synthetic Aperture Integration (SAI) Algorithm for SAR Imaging
patent-application, April 2013

Attribute and Topology Based Change Detection in a Constellation of Previously Detected Objects
patent-application, April 2013

Range-Cued Object Segmentation System and Method
patent-application, September 2013

MUSIC‐Type Electromagnetic Imaging of a Collection of Small Three‐Dimensional Inclusions
journal, January 2007

A MUSIC Algorithm for Locating Small Inclusions Buried in a Half-Space from the Scattering Amplitude at a Fixed Frequency
journal, January 2005

Validation of 2d iNverse Scattering Algorithms From Multi-Frequency Experimental Data
journal, January 2000

Time Reversal Experiments In The Microwave Range: Description Of The Radar And Results
journal, January 2010

Target Characterization Using Time-Reversal Symmetry Of Wave Propagation
journal, August 2007

Analysis of the Time-Reversal Operator for a Small Spherical Scatterer in an Electromagnetic Field
journal, July 2004

Target characterization using decomposition of the time-reversal operator: electromagnetic scattering from small ellipsoids
journal, October 2006

Time-Reversal Analysis for Scatterer Characterization
journal, January 2004

Fuzzy-attribute graph with application to Chinese character recognition
journal, January 1992

A Two-Step Procedure for Characterizing Obstacles Under a Rough Surface From Bistatic Measurements
journal, September 2007

Multistatic Ground-Penetrating Radar Experiments
journal, August 2007

Time-domain processing of electromagnetic data for multiple-target detection
conference, January 2009

Ground Penetrating Radar for Buried Landmine and IED Detection
book, January 2009

A review of GPR for landmine detection
journal, September 2006

An assessment of the fundamental performance of GPR against buried landmines
conference, April 2007

Classification of landmines using GPR
conference, May 2008

Time reversal imaging of obscured targets from multistatic data
journal, May 2005

Localization and characterization of two-dimensional targets buried in a cluttered environment
journal, November 2004

Retrieval of inhomogeneous targets from experimental frequency diversity data
journal, November 2005

Imaging of dielectric cylinders from experimental stepped-frequency data
journal, April 2006

Pre-stack migration applied to GPR for landmine detection
journal, November 2004

Time-reversed acoustics
journal, November 2000

Acoustic time-reversal mirrors
journal, January 2001

Detecting landmines with ground-penetrating radar using feature-based rules, order statistics, and adaptive whitening
journal, November 2004

Detection of land-mines using ultra-wideband radar data and time–frequency signal analysis
journal, January 2004

Derivation and comparison of SAR and frequency-wavenumber migration within a common inverse scalar wave problem formulation
journal, June 2006

General convergence results for linear discriminant updates
conference, January 1997

Multistatic Response Matrix of a 3-D Inclusion in Half Space and MUSIC Imaging
journal, September 2007

Multistatic Response Matrix of Spherical Scatterers and the Back-Propagation of Singular Fields
journal, March 2008

UWB Tomographic Radar Imaging of Penetrable and Impenetrable Objects
journal, February 2009

The Hungarian method for the assignment problem
journal, March 1955

Optimizing the Area Under a Receiver Operating Characteristic Curve With Application to Landmine Detection
journal, February 2007

Three-dimensional ground-penetrating radar imaging using multifrequency diffraction tomography
conference, September 1994

Three-dimensional ground-penetrating radar imaging using synthetic aperture time-domain focusing
conference, September 1994

DORT method as applied to ultrawideband signals for detection of buried objects
journal, August 2003

Eigenmodes of the time reversal operator: A solution to selective focusing in multiple-target media
journal, September 1994

Reconstruction of buried objects surrounded by small inhomogeneities
journal, October 2000

3D wavefront image formation for NIITEK GPR
conference, May 2009

The efficacy of human observation for discrimination and feature identification of targets measured by the NIITEK ground-penetrating radar
conference, September 2004

Constrained filter optimization for subsurface landmine detection
conference, May 2006

Application of the LMC algorithm to anomaly detection using the Wichmann/NIITEK ground-penetrating radar
conference, September 2003

Decomposition of the Time Reversal Operator for Electromagnetic Scattering
journal, January 1999

Error-Correcting Isomorphisms of Attributed Relational Graphs for Pattern Analysis
journal, January 1979

Resonances of perfectly conducting wires and bodies of revolution buried in a lossy dispersive half-space
journal, January 1996

Short-pulse plane-wave scattering from buried perfectly conducting bodies of revolution
journal, January 1996

A Large-Scale Systematic Evaluation of Algorithms Using Ground-Penetrating Radar for Landmine Detection and Discrimination
journal, August 2007

Full Time-Domain DORT for Ultrawideband Electromagnetic Fields in Dispersive, Random Inhomogeneous Media
journal, August 2006

On the Sensitivity of Time-Reversal Imaging Techniques to Model Perturbations
journal, March 2008

Space–Frequency Ultrawideband Time-Reversal Imaging
journal, April 2008