Information-Efficient Spectral Imaging Sensor With Tdi
Abstract
A programmable optical filter for use in multispectral and hyperspectral imaging employing variable gain time delay and integrate arrays. A telescope focuses an image of a scene onto at least one TDI array that is covered by a multispectral filter that passes separate bandwidths of light onto the rows in the TDI array. The variable gain feature of the TDI array allows individual rows of pixels to be attenuated individually. The attenuations are functions of the magnitudes of the positive and negative components of a spectral basis vector. The spectral basis vector is constructed so that its positive elements emphasize the presence of a target and its negative elements emphasize the presence of the constituents of the background of the imaged scene. This system provides for a very efficient determination of the presence of the target, as opposed to the very data intensive data manipulations that are required in conventional hyperspectral imaging systems.
- Inventors:
-
- Albuquerque, NM
- Issue Date:
- Research Org.:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- OSTI Identifier:
- 879602
- Patent Number(s):
- 6678048
- Application Number:
- 09/356809
- Assignee:
- Sandia Corporation (Albuquerque, NM)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01J - MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT
- DOE Contract Number:
- AC04-94AL85000
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Rienstra, Jeffrey L, Gentry, Stephen M, and Sweatt, William C. Information-Efficient Spectral Imaging Sensor With Tdi. United States: N. p., 2004.
Web.
Rienstra, Jeffrey L, Gentry, Stephen M, & Sweatt, William C. Information-Efficient Spectral Imaging Sensor With Tdi. United States.
Rienstra, Jeffrey L, Gentry, Stephen M, and Sweatt, William C. Tue .
"Information-Efficient Spectral Imaging Sensor With Tdi". United States. https://www.osti.gov/servlets/purl/879602.
@article{osti_879602,
title = {Information-Efficient Spectral Imaging Sensor With Tdi},
author = {Rienstra, Jeffrey L and Gentry, Stephen M and Sweatt, William C},
abstractNote = {A programmable optical filter for use in multispectral and hyperspectral imaging employing variable gain time delay and integrate arrays. A telescope focuses an image of a scene onto at least one TDI array that is covered by a multispectral filter that passes separate bandwidths of light onto the rows in the TDI array. The variable gain feature of the TDI array allows individual rows of pixels to be attenuated individually. The attenuations are functions of the magnitudes of the positive and negative components of a spectral basis vector. The spectral basis vector is constructed so that its positive elements emphasize the presence of a target and its negative elements emphasize the presence of the constituents of the background of the imaged scene. This system provides for a very efficient determination of the presence of the target, as opposed to the very data intensive data manipulations that are required in conventional hyperspectral imaging systems.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 13 00:00:00 EST 2004},
month = {Tue Jan 13 00:00:00 EST 2004}
}
Works referenced in this record:
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