Information-Efficient Spectral Imaging Sensor With Tdi
- Albuquerque, NM
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.
- Research Organization:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- DOE Contract Number:
- AC04-94AL85000
- Assignee:
- Sandia Corporation (Albuquerque, NM)
- Patent Number(s):
- US 6678048
- Application Number:
- 09/356809
- OSTI ID:
- 879602
- Country of Publication:
- United States
- Language:
- English
HYDICE: an airborne system for hyperspectral imaging
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conference | September 1993 |
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conference | September 1990 |
A System Overview Of The Airborne Visible/Infrared Imaging Spectrometer (Aviris)
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conference | January 1987 |
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conference | November 1996 |
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