On Interpreting Stereo Disparity

Abstract

The problems under consideration center around the interpretation of binocular stereo disparity. In particular, the goal is to establish a set of mappings from stereo disparity to corresponding three dimensional scene geometry. Stereo disparity is represented as a vector field derived from differential projection of a three dimensional scene onto a pair of two- dimensional imaging surfaces. The resulting disparity field is analysed with the aid of mathematical tools from classical field theory. This analysis shows how disparity information can be interpreted in terms of three dimensional scene properties, such as surface depth, discontinuities and orientation. These theoretical developments have been embodied in a set of computer algorithms for the recovery of scene geometry from input stereo disparity. The results of applying these algorithms to several disparity maps are presented. Finally, comparisons are made to the interpretation of stereo disparity by biological systems. Keywords: Image understanding; Stereo images; Surface representation; Three dimensional vision; Theses.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1989
Accession Number
ADA209398

Entities

People

  • Richard P. Wildes

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Algorithms
  • Artificial Intelligence
  • Change Detection
  • Cognitive Science
  • Computer Programs
  • Computer Stereo Vision
  • Computer Vision
  • Coordinate Systems
  • Detection
  • Difference Equations
  • Differential Equations
  • Error Analysis
  • Geometry
  • Information Processing
  • Pattern Recognition
  • Systems Biology
  • Three Dimensional

Readers

  • Computer Vision.
  • Theoretical Analysis.