Suppression of subpixel sensor jitter fluctuations using temporal whitening

Steven M. Adler-Golden; Steven C. Richtsmeier; Robert M. Shroll

doi:10.1117/12.780005

16 April 2008 Suppression of subpixel sensor jitter fluctuations using temporal whitening

Steven M. Adler-Golden, Steven C. Richtsmeier, Robert M. Shroll

Author Affiliations +

Proceedings Volume 6969, Signal and Data Processing of Small Targets 2008; 69691D (2008) https://doi.org/10.1117/12.780005
Event: SPIE Defense and Security Symposium, 2008, Orlando, Florida, United States

Abstract

Sensor jitter introduces non-white noise fluctuations in imagery of cluttered scenes. These fluctuations are a major source of interference in the detection of weak time-dependent signals, which may be associated with a subject's appearance, motion, or brightness modulation. Due to the presence of sensor pattern noise and uncertainty in the scene's subpixel spatial structure, standard frame-to-frame registration methods have limited ability to model and remove these fluctuations. A simple temporal whitening approach, applicable to a wide variety of imaging systems, is found to be highly effective for suppressing subpixel jitter effects, leading to dramatic (up to several orders of magnitude) improvement in signal detection ability.

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Steven M. Adler-Golden, Steven C. Richtsmeier, and Robert M. Shroll "Suppression of subpixel sensor jitter fluctuations using temporal whitening", Proc. SPIE 6969, Signal and Data Processing of Small Targets 2008, 69691D (16 April 2008); https://doi.org/10.1117/12.780005

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