An Information Processing Approach to Understanding the Visual Cortex
dc.contributor.author | Crick, Francis H.C. | en_US |
dc.contributor.author | Marr, David C. | en_US |
dc.contributor.author | Poggio, Tomaso | en_US |
dc.date.accessioned | 2004-10-04T14:51:59Z | |
dc.date.available | 2004-10-04T14:51:59Z | |
dc.date.issued | 1980-04-01 | en_US |
dc.identifier.other | AIM-557 | en_US |
dc.identifier.uri | http://hdl.handle.net/1721.1/6332 | |
dc.description.abstract | An outline description is given of the experimental work on the visual acuity and hyperacuity of human beings. The very high resolution achieved in hyperacuity corresponds to a fraction of the spacing between adjacent cones in the fovea. We briefly outline a computational theory of early vision, according to which (a) retinal image is filtered through a set of approximately bandpass, spatial filters and (b) zero-crossings may contain sufficient information for much of the subsequent processing. Consideration of the optimum filter lead to one which is equivalent to a cell with a particular center-surround type of response. An "edge" in the visual field then corresponds to a line of zero-crossings in the filtered image. The mathematics of sampling and of Logan's zero-crossing theorem are briefly explained. | en_US |
dc.format.extent | 10159430 bytes | |
dc.format.extent | 8043369 bytes | |
dc.format.mimetype | application/postscript | |
dc.format.mimetype | application/pdf | |
dc.language.iso | en_US | |
dc.relation.ispartofseries | AIM-557 | en_US |
dc.title | An Information Processing Approach to Understanding the Visual Cortex | en_US |