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While conventional CMOS active pixel sensors embed only the circuitry required for photo-detection, pixel addressing and voltage buffering, smart pixels incorporate also circuitry for data processing, data storage and control of data interchange. This additional circuitry enables data processing be realized concurrently with the acquisition of images which is instrumental to reduce the number of data...
This paper conveys a proof-of-concept chip for Gaussian pyramid generation for image feature detectors. Gaussian filtering and image resizing are performed with a switched-capacitor (SC) network. The chip is conceived as the mapping of a CMOS-3D architecture for feature detectors onto a conventional technology, with some functionality removed, and the corresponding area overhead with respect to that...
This paper describes the use of a reconfigurable focal-plane processing array in order to achieve an image representation which dramatically reduces the computational load of the Viola-Jones object detection framework. Additionally, such representation provides richer information than the simple sum of pixels within rectangular regions originally defined in this framework. As a result, more elaborated...
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