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This paper reports on a Q VGA vision sensor embedding 160 column-level digital processors executing real-time tunable scene background subtraction for robust event detection. The single-ramp column-parallel ADCs are used to estimate the pixel variations and detecting anomalous behaviors against two reference images stored in on-chip. The sensor generates a 160×120 pixel bitmap associated to potential...
In surveillance and monitoring applications, motion detection using commercial cameras with off-line high-level algorithm processing is not efficient. They have to force the high-level processor continuously analyze the acquired high-resolution images. This causes a large waste of power, since there are no events in most of the cases. Embedding low-level image processing on-chip will make the system...
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