An Evaluation and Comparison of Several Measures of Image Quality for Television Displays

Abstract

Television display systems are currently widely used for many image transmission applications other than home entertainment. For many military and commercial uses the quality of the displayed imagery is critical with respect to its effect on observer performance. This dissertation investigates 19 figures of merit (FOM's) that have been proposed as measures of television image quality. Target detection and target recognition study was implemented to determine which of the 19 FOM's correlated highest with performance. The study employed a 525 line, 60 Hz field rate television display system with 2:1 interlace of fields. Nine different display quality conditions were investigated using all combinations of three contrast ratios (50:1, 50:5 and 50:15) and three video bandwidths (6.0 MHz, 1.0 MHz, and 0.4 MHz). Noise was not varied. Three FOM's stood out as promising indicators of display quality and observer performance. The highest correlating FOM was the log band-limited modulation transfer function area (log BLMTFA) closely followed by the just-noticeable difference area-log (JNDA-log), 1/2 cpd and the JNDA-log, 2 cpd.

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1979
Accession Number
ADA069690

Entities

People

  • Harry Lee Task

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Biomedical
  • Sensors

DTIC Thesaurus Topics

  • Air Force
  • Biomedical Research
  • Cameras
  • Cathode Ray Tubes
  • Data Displays
  • Detection
  • Detectors
  • Display Systems
  • Photographs
  • Psychology
  • Recognition
  • Systems Engineering
  • Target Detection
  • Target Recognition
  • Television Display Systems
  • Transfer Functions
  • Two Dimensional

Readers

  • Human-Computer Interaction (HCI).
  • Radar Systems Engineering.