Redundant Coding in Visual Search Displays: Effects of Shape and Colour.

Abstract

Subjects sought a unique target shape in a display of distractor shapes under three color coding conditions. In the no color coding condition (NC C) all shapes shared the same color. In the two color-coded conditions, the target was uniquely and redundantly color coded with a color whose CIE xy chromaticity coordinates were linearly separable (LS) or were not linearly separable (NLS) from the set of distractor chromaticity coordinates. Performance was optimal under LS coding, was reduced under NLS coding and was least efficient in the NCC condition. We discuss the implications of these results for refining color selection algorithms and for color coding in situations where the gamut of available colors is limited. In a secondary set of analyses, we note large performance differences as a function of target shape.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1997
Accession Number
ADA323155

Entities

People

  • Ben Bauer
  • Sharon Mcfadden

Organizations

  • DRDC Toronto

Tags

DTIC Thesaurus Topics

  • Abstracts
  • Algorithms
  • Applied Psychology
  • Chromaticity
  • Classification
  • Cognitive Workload
  • Color Coding
  • Color Displays
  • Computer Programming
  • Detection
  • Discrimination
  • Engineering
  • National Security
  • Psychology
  • Reaction Time
  • Refining
  • Security

Readers

  • Computer Science.
  • Graph Algorithms and Convex Optimization.
  • Vision Science/Vision Psychology/Cognitive Neuroscience.