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![]() | Harrison, Reid R. | Single-chip CMOS visual orientation sensor | We present a single-chip, low-power vision sensor capable of measuring local edge orientation across a wide field of view. The sensor was fabricated in a 0.5-µm CMOS process. Quadratic spatial filters were implemented using differential pairs and an "antibump" circuit to give a current-mode out... | Low-power; Vision sensor; CMOS | 2004-01-01 |