Orientation-Selective VLSI Retina

  title={Orientation-Selective VLSI Retina},
  author={Timothy P. Allen and Carver A. Mead and Federico Faggin and Glenn E. Gribble},
In both biological and artificial patternrecognition systems, the detection of oriented lightintensity edges is an important preprocessing step. We have constructed a silicon VLSI device containing an array of photoreceptors with additional hardware for computing center -surround (edgeenhanced) response as well as edge orientation at every point in the receptor lattice. Because computing the edge orientations in the array local to each photoreceptor would have made each pixelcomputation unit… CONTINUE READING

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