Hotelling trace criterion as a model for the performance of an IR imaging system

Vanitha Sankaran M.D.; Harrison H. Barrett; Elizabeth A. Krupinski; Eustace L. Dereniak; Howard V. Kennedy

doi:10.1117/12.188673

17 October 1994 Hotelling trace criterion as a model for the performance of an IR imaging system

Vanitha Sankaran M.D., Harrison H. Barrett, Elizabeth A. Krupinski, Eustace L. Dereniak, Howard V. Kennedy

Proceedings Volume 2269, Infrared Technology XX; (1994) https://doi.org/10.1117/12.188673
Event: SPIE's 1994 International Symposium on Optics, Imaging, and Instrumentation, 1994, San Diego, CA, United States

Abstract

The effect of fixed-pattern noise on the detection of subtle targets embedded in Gaussian white noise was investigated, comparing human detection performance with that of an ideal linear observer characterized by the Hotelling Trace Criterion (HTC). Five signal-to-noise ratios (SNR) were tested for the two conditions: with and without fixed-pattern noise, where both sets of images also contained Gaussian white noise. In this study, the SNR was calculated using the Gaussian white noise only; the additional fixed pattern noise was not figured into the SNR. Human detection performance did not differ significantly in the two conditions. In both conditions performance increased significantly with increases in SNR. The HTC figure of merit predicted accurately the experimental results for the fixed-pattern noise.

Citation Download Citation

Vanitha Sankaran M.D., Harrison H. Barrett, Elizabeth A. Krupinski, Eustace L. Dereniak, and Howard V. Kennedy "Hotelling trace criterion as a model for the performance of an IR imaging system", Proc. SPIE 2269, Infrared Technology XX, (17 October 1994); https://doi.org/10.1117/12.188673

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