Detection thresholds of structured noise in the presence of shot noise

Feng Li; Brian Keelan; Robin Jenkin; Alex Dokoutchaev

doi:10.1117/12.909588

24 January 2012 Detection thresholds of structured noise in the presence of shot noise

Feng Li, Brian Keelan, Robin Jenkin, Alex Dokoutchaev

Author Affiliations +

Proceedings Volume 8299, Digital Photography VIII; 82990B (2012) https://doi.org/10.1117/12.909588
Event: IS&T/SPIE Electronic Imaging, 2012, Burlingame, California, United States

Abstract

An observer study was run to determine the detection thresholds of several representative examples of column fixed pattern noise, in the presence of varying levels of shot noise, which is known to mask structured noise. The data obtained were fit well at relevant shot noise levels by a simple model based on signal detection theory. Individual metrics of fixed pattern noise and shot noise, used in the masking equation, were computed from one dimensional integrations involving the capture noise power spectra (mapped to CIELAB space); the modulation transfer function of the display; the display pixel pitch; the viewing distance; and the S-CIELAB luminance contrast sensitivity function. The results of this work can be used to predict detection thresholds that can be added to photon transfer curves for the purpose of determining whether fixed pattern noise will be visible.

Citation Download Citation

Feng Li, Brian Keelan, Robin Jenkin, and Alex Dokoutchaev "Detection thresholds of structured noise in the presence of shot noise", Proc. SPIE 8299, Digital Photography VIII, 82990B (24 January 2012); https://doi.org/10.1117/12.909588

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