Abstract
We describe a unique implementation of an optical-in/optical- out focal plane processor whose functionality is derived from a biological retina. The retina chip has increased control over the output through a novel differential difference amplifier and a clocked analog scheme. Pro- cessing is done on-chip to produce an edge-detected version of the op- tical input signal. However, the output signal is also optical, enabled by a liquid crystal spatial light modulator on the chip. We present experimen- tal results from a 19319 array and demonstrate how the edge informa- tion can be controlled on-chip and read out in parallel from each process- ing cell. © 2003 Society of Photo-Optical Instrumentation Engineers.
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