Published 1988
| public
Journal Article
A silicon model of early visual processing
- Creators
-
Mead, Carver A.
- Mahowald, M. A.
Chicago
Abstract
An analog model of the first stages of retinal processing has been constructed on a single silicon chip. Each photoreceptor computes the logarithm of the incident light intensity. A resistive network is used to compute a spatially smoothed version of the receptor outputs. An amplified difference between the receptor signals and their smoothed counterparts forms a second-order spatial filter. Measured outputs from an experimental 48 × 48 pixel array show many of the characteristics of the bipolar cells in vertebrate retina.
Additional Information
Copyright © 1988 Pergamon Journals. Received and accepted 5 October 1987.Additional details
- Eprint ID
- 52989
- DOI
- 10.1016/0893-6080(88)90024-X
- Resolver ID
- CaltechAUTHORS:20141217-152336241
- Created
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2014-12-17Created from EPrint's datestamp field
- Updated
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2021-11-10Created from EPrint's last_modified field