27 January 2009 High-speed and high-dynamic range difference imaging based on the near-sensor image processing concept
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Abstract
The paper describes the Near Sensor Image Processing (NSIP) paradigm developed in the early 1990s and shows that it was a precursor to recent architectures proposed for direct (in the sensor) image processing and high dynamic range (HDR) image sensing. Both of these architectures are based on the specific properties of CMOS light sensors, in particular the ability to continuously monitor the accumulation of photon-induced charge as a function of time. We further propose an extension of the original NSIP pixel to include a circuit that facilitates temporal and spatio-temporal processing.
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Anders Åström, Anders Åström, Robert Forchheimer, Robert Forchheimer, } "High-speed and high-dynamic range difference imaging based on the near-sensor image processing concept", Proc. SPIE 7249, Sensors, Cameras, and Systems for Industrial/Scientific Applications X, 72490G (27 January 2009); doi: 10.1117/12.805713; https://doi.org/10.1117/12.805713
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