Curvature Estimation in Orientation Selection

Abstract

To summarize, progress has been made on a family of related problems, including: A model of endstopped visual cortical neurons was extended to include complex components; An extensive simulation of the model was completed with regard to orientation, positional, spatial frequency, curvature, chevron, and end-line sensitivity; Orientation discontinuities were extended into the motion domain, and psychological and computational experiments were performed to confirm the hypothesis of multiple directions being represented at a point of discontinuity; A theory was developed to capture the non-linearities necessary for early measurement of orientation and curvature; A totally different theory has begun to take shape for functionally characterizing cytochrome oxidase blobs; and The mathematical foundations were laid for a theory of shape.

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Document Details

Document Type
Technical Report
Publication Date
Jan 31, 1992
Accession Number
ADA247862

Entities

People

  • Max S. Cynader
  • Steven W. Zucker

Tags

Communities of Interest

  • Autonomy

DTIC Thesaurus Topics

  • Automata Theory
  • Change Detection
  • Computations
  • Computer Science
  • Computer Vision
  • Computers
  • Curvature
  • Detectors
  • Discontinuities
  • Electrical Engineering
  • Linearity
  • Mathematical Analysis
  • Mean Field Theory
  • Neural Networks
  • Orientation (Direction)
  • Robotics
  • Simulations

Readers

  • Control Systems Engineering.
  • Neural Network Machine Learning.
  • Structural Dynamics.