A centroid computation system is disclosed. The system has an imager array, a switching network, computation elements, and a divider circuit. The imager array has columns and rows of pixels. The switching network is adapted to receive pixel signals from the image array. The plurality of computation elements...http://www.google.com.au/patents/US20030133625?utm_source=gb-gplus-sharePatent US20030133625 - High-speed on-chip windowed centroiding using photodiode-based CMOS imager
