Total dimensions are sq.
Inspired by neuromorphic models of vision across the retina and several layers in visual cortex, the design integrates in each pixel the functions of photoreception, simple cells, complex cells, hyper-complex cells, and bipole cells, in each of three directions interconnected on a hexagonal grid. Experimental results from a fabricated pixel prototype in a 1.2 m CMOS process demonstrate the robustness of the implemented BCS model in selecting image contours in a cluttered and noisy background.