Accession Number : ADA299945

Title :   Toward a Neurobiological Theory of Visual Attention.

Descriptive Note : Final rept. 1 Sep 92-31 Aug 95,

Corporate Author : CALIFORNIA INST OF TECH PASADENA DIV OF BIOLOGY

Personal Author(s) : Koch, Christoff

PDF Url : ADA299945

Report Date : 1995

Pagination or Media Count : 12

Abstract : The purpose of this effort was to study visual, focal selective attention and its implementation in the primate visual system from a computational point of view. It is know that at the neuronal level, two cortical pathways exists that are responsible for mediating attention: the where pathway that selects interesting or conspicuous locations and the what pathway that identifies and recognizes objects. In the effort, it was shown how neuronal networks based on those found in the cerebral cortex can implemented these pathways using real images. In particular, the use of a saliency map, that encodes how "interesting" or "salient" locations are in the visual field (rather than what features are present at these locations) represents a powerful strategy to aid visual search.These algorithms are being ported onto Pentium-based machines for various machine-vision applications.

Descriptors :   *NERVE CELLS, *VISUAL PERCEPTION, *CEREBRAL CORTEX, *NEUROBIOLOGY, ALGORITHMS, COMPUTATIONS, NETWORKS, THEORY, IMAGES, SEARCHING, VISION, ATTENTION.

Subject Categories : Anatomy and Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE