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Recognizing the gist of a visual scene: possible perceptual and neural mechanisms

Rasche, Christoph and Koch, Christof (2002) Recognizing the gist of a visual scene: possible perceptual and neural mechanisms. Neurocomputing, 44-46 . pp. 979-984. ISSN 0925-2312. http://resolver.caltech.edu/CaltechAUTHORS:20130816-103222989

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Abstract

We try to understand the basics of human image processing from a gist recognition perspective. Because the gist is only a subset of the image's information, we think that it is extracted with help of interpretation (feedback). In a perceptual section we list possible mechanisms that the interpretation process uses to determine the gist: in addition to the commonly known local-to-global perception evolvement, there is likely to be also a global-to-local evolvement direction, a coarse/fine scale, as well as a foreground/background scale. In a neural section we first summarize feedback connections that can possibly be involved in gist recognition. Second, we propose that the perceptual mechanisms are spread all over the cortex and that cortical visual computation occurs distributively rather than hierarchical.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/S0925-2312(02)00500-3DOIArticle
http://www.sciencedirect.com/science/article/pii/S0925231202005003PublisherArticle
Additional Information:c2002 Published by Elsevier Science B.V. Available online 27 March 2002. This work was supported in part by the Engineering Research Centers Program of the National Science Foundation under Award Number EEC-9402726 and in part by the Swiss National Science Foundation.
Group:Koch Laboratory, KLAB
Funders:
Funding AgencyGrant Number
NSF Engineering Research Centers Program EEC-9402726
Swiss National Science FoundationUNSPECIFIED
Subject Keywords:Vision; Gist; Scales; Feedback
Record Number:CaltechAUTHORS:20130816-103222989
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20130816-103222989
Official Citation:Christoph Rasche, Christof Koch, Recognizing the gist of a visual scene: possible perceptual and neural mechanisms, Neurocomputing, Volumes 44–46, June 2002, Pages 979-984, ISSN 0925-2312, http://dx.doi.org/10.1016/S0925-2312(02)00500-3. (http://www.sciencedirect.com/science/article/pii/S0925231202005003)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:40499
Collection:CaltechAUTHORS
Deposited By: KLAB Import
Deposited On:11 Jan 2008 23:20
Last Modified:03 Dec 2013 00:31

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