Characterizing IR dynamic response for foliage backgrounds

Document Type

Conference Proceeding

Publication Date

9-1-1990

Abstract

© 1990 SPIE. All rights reserved. There are several factors which can contribute to radiometric variability in IR imagery of foliage backgrounds, including variation in solar absorptivity, convective coupling, emissivity; as well as geometry considerations such as variation in leaf shading factors. One factor often neglected is scene variation resulting from differences in transient response for different foliage types under dynamic solar loading. This paper discusses the measurement and characterization of foliage dynamic response, and the effect foliage dynamic response has on scene variability under variable solar loading. Measurements of transient response were obtained under controlled laboratory conditions. Radiometric data was collected for two foliage types using step function solar loading input, using both imaging and nonimaging thermal sensors.

Publication Title

Proceedings of SPIE - The International Society for Optical Engineering

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