Improved formulas for CSNR with an example

Charles C. Kim

doi:10.1117/12.2551895

23 April 2020 Improved formulas for CSNR with an example

Charles C. Kim

Author Affiliations +

Proceedings Volume 11406, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXXI; 114060C (2020) https://doi.org/10.1117/12.2551895
Event: SPIE Defense + Commercial Sensing, 2020, Online Only

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.

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Charles C. Kim "Improved formulas for CSNR with an example", Proc. SPIE 11406, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXXI, 114060C (23 April 2020); https://doi.org/10.1117/12.2551895

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