Sun, Jennifer and Perona, Pietro (1996) Early computation of shape and reflectance in the visual system. Nature, 379 (6561). pp. 165-168. ISSN 0028-0836. doi:10.1038/379165a0. https://resolver.caltech.edu/CaltechAUTHORS:20140730-101722925
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Abstract
A COMPELLING sense of three-dimensional shape may be conveyed by the photograph of an object. Cues such as contour, shading, perspective and occlusion, to name a few, contribute to this percept. Psychophysical experiments suggest that certain aspects of three-dimensional shape are computed rapidly and in parallel by the visual system. Here we report that reflectance is also computed rapidly; moreover, it is the apparent reflectance, rather than brightness or perceptual three-dimensional shape, that is the primary basis for discrimination during the early stages of visual processing.
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| Additional Information: | © 1996 Nature Publishing Group. Received 27 July; accepted 13 October 1995. We thank J. Braun and J. Malik for suggestions and B. Julesz, I. Kovacs, T. Sejnowski, S. Shimojo and T. Watanabe for their contributions. This research was supposed by the California Institute of Technology, an NSF National Young Investigator Award to P.P., and NSF Fellowship and Training Grant for J.Y.S., and the NSF Center for Neuromorphic Systems Engineering at Caltech. | |||||||||
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| Issue or Number: | 6561 | |||||||||
| DOI: | 10.1038/379165a0 | |||||||||
| Record Number: | CaltechAUTHORS:20140730-101722925 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20140730-101722925 | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 47643 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Caroline Murphy | |||||||||
| Deposited On: | 06 Aug 2014 22:49 | |||||||||
| Last Modified: | 10 Nov 2021 17:48 |
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