Effects of Spatial Luminance Nonuniformities on Visual-Task Performance and Subjective Uniformity.

Abstract

The objectives of the experiment described in the paper were the determination of the effects of nonuniformities on operator performance and perception, and the validation of current recommended standards. Subjects performed two tasks in the presence of nonuniformities: an objective visual search task and a subjective magnitude-estimation task for the determination of perceived uniformity. The results indicated that the nonuniformities did not appreciably affect search performance, and that current recommendations are appropriate, although the magnitude-estimation task results indicated that the subjects were sensitive to the nonuniformities. The subject impressions of perceived uniformity results follow the contrast threshold function of the visual system. display luminance nonuniformity, perceived uniformity, visual displays.

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Document Details

Document Type
Technical Report
Publication Date
Jul 01, 1992
Accession Number
ADA255989

Entities

People

  • J. J. Gallimore
  • W. W. Farley

Organizations

  • Human Engineering Laboratory

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Abstracts
  • Classification
  • Computer-Aided Design
  • Detection
  • Engineering
  • Flat Panel Displays
  • Frequency
  • Generators
  • Human Factors Engineering
  • Identification
  • Psychology
  • Security
  • Sine Waves
  • Square Waves
  • Task Performance And Analysis
  • Two Dimensional
  • Waveforms

Readers

  • Pulsed Power and Plasma Physics.
  • Vision Science/Vision Psychology/Cognitive Neuroscience.