Monday, January 14, 20083:00 PM - 4:00 PMCNLS Conference Room (TA-3, Bldg 1690)|
Visual Computations and Visual Cortex
Steven ZuckerDept. of Computer Science and Program in Applied Mathematics, Yale University
We seek to understand the principles underlying visual information processing as an abstraction in computational neuroscience. A theory of early computational vision, from boundary detection
to color, shading and stereo, is sketched. The theory is geometrical. It is derived by identifying the columnar organization prevalent
in primate neurobiology with the tangent bundle.
We consider in particular how long-range horizontal connections relate to connection forms (curvatures). For example, edge elements are identified with a local approximation to
tangents and curvature is necessary to introduce consistency between them. Local circuitry for these computations in primate V1 is
described. The resultant models quantitatively predict the anatomy and physiology of long-range horizontal connections to second-order, and
provide a foundation for inferences about perceptual surfaces.
Steven W. Zucker
Dept. of Computer Science and Program in Applied Mathematics
New Haven, CT 06520-8285
Host: Eddy Timmermans/T-CNLS