Threshold and Suprathreshold Lateral Spatial Interactions in Brightness, Contrast and Stereoscopic Depth Perception.

Abstract

We measured the effects of stereoscopic and pictorial depth separation on a variety of phenomena involving lateral interactions in the luminance and contrast domains (e.g., grating induction, perceptual transparency, simulataneous brightness contrast and contrast-contrast). In addition, the early visual mechanisms underlying the formation of illusory contours were assessed by measuring the effects of illusory contours on the visibility of spatiotemporally limited targets (i.e., Gabor patches); and by measuring the effects of filtered noise textures on the strength of illusory contours. Finally, the temporal characteristics of the mechanisms underlying grating induction and simultaneous brightness contrast were measured.

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Document Details

Document Type
Technical Report
Publication Date
Apr 30, 1996
Accession Number
ADA310102

Entities

People

  • Barbara Blakeslee
  • Mark E. Mccourt

Organizations

  • North Dakota State University

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Aspect Ratio
  • Bandpass Filters
  • Brightness
  • Computer Vision
  • Computers
  • Contrast
  • Detection
  • Filtration
  • Frequency
  • Frequency Response
  • Geometry
  • Graphics
  • Optics
  • Perception
  • Psychology
  • Target Detection
  • Three Dimensional

Readers

  • Theoretical Analysis.
  • Vision Science/Vision Psychology/Cognitive Neuroscience.