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Proceedings Paper

Thermal contrast definition for infrared imaging sensors
Author(s): Michael R. Whalen; Eric J. Borg
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Paper Abstract

Given the dependence of infrared imaging system performance on target thermal contrast, the accuracy in defining target (Delta) Ts is of critical importance. The current definition of (Delta) T neglects temperature variance across the target, and its inadequacy in characterizing infrared signatures is becoming increasingly apparent. With the advent of more sophisticated sensors and signal processors, with increased capabilities to extract more detailed thermal features, a new method of defining (Delta) T which includes temperature variance is required. This paper presents a new definition of thermal contrast, validates its improved capability to predict thermal imaging sensor performance with the available data, and addresses related issues including the effects of range and sensor resolution on the apparent temperature variance and the contribution of background clutter to the overall scene variance.

Paper Details

Date Published: 13 August 1993
PDF: 8 pages
Proc. SPIE 1967, Characterization, Propagation, and Simulation of Sources and Backgrounds III, (13 August 1993); doi: 10.1117/12.151043
Show Author Affiliations
Michael R. Whalen, Dynetics, Inc. (United States)
Eric J. Borg, Dynetics, Inc. (United States)

Published in SPIE Proceedings Vol. 1967:
Characterization, Propagation, and Simulation of Sources and Backgrounds III
Wendell R. Watkins; Dieter Clement, Editor(s)

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