Mead, Carver A. and Mahowald, M. A. (1988) A silicon model of early visual processing. Neural Networks, 1 (1). pp. 91-97. ISSN 0893-6080. doi:10.1016/0893-6080(88)90024-X. https://resolver.caltech.edu/CaltechAUTHORS:20141217-152336241
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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.
| Item Type: | Article | |||||||||
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| Additional Information: | Copyright © 1988 Pergamon Journals. Received and accepted 5 October 1987. | |||||||||
| Subject Keywords: | Retina; Machine vision; Analog CMOS; Spatial filter; Neural model | |||||||||
| Issue or Number: | 1 | |||||||||
| DOI: | 10.1016/0893-6080(88)90024-X | |||||||||
| Record Number: | CaltechAUTHORS:20141217-152336241 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20141217-152336241 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 52989 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Kristin Buxton | |||||||||
| Deposited On: | 17 Dec 2014 23:28 | |||||||||
| Last Modified: | 10 Nov 2021 19:46 |
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