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Proceedings Paper

Detection and estimation of spectral emissivity variations in the thermal infrared
Author(s): David Kryskowski; James R. Maxwell
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Paper Abstract

When the thermal contrast between a target and the background is large it is usually sufficient to use a single spectral band for detection purposes and consequently spectral emissivity variations are ignored. We consider the problem of detection and estimation of spectral emissivity in the thermal infrared emphasizing the particular detection situation where the target thermal contrast is small. More generally, we show that temperature can be considered as random interference of low rank. This leads to a procedure of optimally estimating both the temperature and spectral emissivity components. of radiance measurements. In addition to temperature and spectral emissivity estimation we outline a phenomenology based optimal detector that is invariant to unknown levels of temperature variation and unknown levels of target thermal contrast.

Paper Details

Date Published: 22 October 1993
PDF: 16 pages
Proc. SPIE 1954, Signal and Data Processing of Small Targets 1993, (22 October 1993); doi: 10.1117/12.157759
Show Author Affiliations
David Kryskowski, Environmental Research Institute of Michigan (United States)
James R. Maxwell, Environmental Research Institute of Michigan (United States)


Published in SPIE Proceedings Vol. 1954:
Signal and Data Processing of Small Targets 1993
Oliver E. Drummond, Editor(s)

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