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Proceedings Paper

Improved formulas for CSNR with an example
Author(s): Charles C. Kim
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Paper Abstract

Contrast signal to noise ratio (CSNR) is an important metric for a thermal camera. Listing two, it guides a system architect to design the camera for a desired performance. It predicts the performance of the camera for a given scenario. Many an author developed its formulas and used them. Holst presented them systematically in his textbook. The formulas for CSNR are not always the same one another for they are derived under different assumptions and approximations. This paper reviews some and presents improved formulas for both the point source and the extended source. They are compared to others in the literature, delineating the improvement. The formulas are applied to one scenario as an example.

Paper Details

Date Published: 23 April 2020
PDF: 7 pages
Proc. SPIE 11406, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXXI, 114060C (23 April 2020); doi: 10.1117/12.2551895
Show Author Affiliations
Charles C. Kim, Northrop Grumman Mission Systems (United States)


Published in SPIE Proceedings Vol. 11406:
Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXXI
Gerald C. Holst; David P. Haefner, Editor(s)

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