A STUDY OF PHOTOINTERPRETER PERFORMANCE IN CHANGE DISCRIMINATION

Abstract

Two methods of inspecting pairs of comparison photographs were studied: (1) side-by-side display; and (2) apparent-motion display, in which pictures in spatial registry were presented in temporal alternation. This second presentation method produces apparent motion, where a difference between the pictures exists, which aids in the rapid detection of objects that have changed. Both experienced and inexperienced interpreters were tested with aerial photography varing in scale, contrast, resolution, and terrain complexity. Under certain conditions the apparent-motion display method was found to enhance significantly interpreter performance in the change detection task. However, it became relatively less effective with poorer quality imagery or where these was a high percentage of irrelevant change. Under difficult conditions, neither display method was significantly better than the other. Although the applications of the apparent-motion technique are limited, the results of this study suggest the value of further efforts to define the extent of its usefulness.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1963
Accession Number
AD0431495

Entities

People

  • C. L. Elworth
  • C. L. Klingberg
  • C. L. Kraft

Organizations

  • Boeing

Tags

Communities of Interest

  • Electronic Warfare
  • Energy and Power Technologies
  • Human Systems
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Aerial Photography
  • Air Force
  • Aircrafts
  • Analysis Of Variance
  • Cameras
  • Detection
  • Display Systems
  • Experimental Design
  • Human Factors Engineering
  • Information Processing
  • Measurement
  • Military Aircraft
  • Photographic Materials
  • Photographs
  • Photography
  • Psychology
  • United States

Readers

  • Computer Vision.
  • Defense Acquisition Program Management