Seeing 'Ghost' Solutions in Stereo Vision

Abstract

A unique matching is a stated objective of most computational theories of stereo vision. This report describes situations where humans perceive a small number of surfaces carried by non-unique matching of random dot patterns, although a unique solution exists and is observed unambiguously in the perception of isolated features. We find both cases where non-unique matchings compete and suppress each other and cases where they are all perceived as transparent surfaces. The circumstances under which each behavior occurs are discussed and a possible explanation is sketched. It appears that matching reduces many false targets to a few, but may still yield multiple solutions in some cases through a (possibly different) process of surface interpolation.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1988
Accession Number
ADA203581

Entities

People

  • Daphna Weinshall

Organizations

  • Massachusetts Institute of Technology

Tags

DTIC Thesaurus Topics

  • Algorithms
  • Ambiguity
  • Application Software
  • Artificial Intelligence
  • Computations
  • Computer Stereo Vision
  • Disparities
  • False Targets
  • Information Processing
  • Information Systems
  • Interpolation
  • Low Density
  • Military Research
  • Neurobehavioral Manifestations
  • Perception
  • Security
  • Targets

Readers

  • Calculus or Mathematical Analysis
  • Computer Vision.
  • Theoretical Analysis.