16 April 2008 Suppression of subpixel sensor jitter fluctuations using temporal whitening
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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 M. Adler-Golden, Steven C. Richtsmeier, Steven C. Richtsmeier, Robert M. Shroll, 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); doi: 10.1117/12.780005; https://doi.org/10.1117/12.780005
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