Orientation-Selective VLSI Retina
- Other:
- Hsing, T. Russell
Abstract
In both biological and artificial pattern-recognition systems, the detection of oriented light-intensity 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 (edge-enhanced) 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 pixel-computation unit too large (thereby reducing the resolution of the device), we devised a novel technique for computing the orientations outside of the array. All the transducers and computational elements are analog circuits made with a conventional CMOS process.
Additional Information
© 1988 SPIE--The International Society for Optical Engineering.Attached Files
Published - 1001_1040.pdf
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Additional details
- Eprint ID
- 61008
- Resolver ID
- CaltechAUTHORS:20151012-141538820
- Created
-
2015-10-15Created from EPrint's datestamp field
- Updated
-
2021-11-10Created from EPrint's last_modified field
- Series Name
- Proceedings of the SPIE
- Series Volume or Issue Number
- 1001