Visual Search and Image Quality.

Abstract

This report presents the results of an air-to-ground television target acquisition experiment which investigated the effects of mission profile, video system line rate and bandwidth, and video noise level. The target acquisition performance data are related to these variables and to a measure of display image quality, the Modulation Transfer Function Area (MTFA), which is measured microphotometrically at the display surface. The target acquisition performance results are largely as expected. For a camera field of view of 18.8 x 14.2 deg, the mean ground ranges of correctly acquired targets are 28,661, 24,376, and 12,171 ft, respectively, for mission profiles of 23 deg depression angle, 500 ft/s velocity; 23 deg, 3000 ft/s; and 45 deg, 500 ft/s. As depression angle decreased, there was a large decrease in acquisition range; as velocity increased, there was a smaller decrease in acquisition range. Altitude was 10,000 ft.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1976
Accession Number
ADA036263

Entities

People

  • Harry L. Snyder

Organizations

  • Virginia Tech

Tags

Communities of Interest

  • Air Platforms
  • Biomedical
  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Acquisition
  • Analysis Of Variance
  • Biomedical Research
  • Camera Controls
  • Cameras
  • Contracts
  • Depression Angles
  • Display Systems
  • Engineering
  • Experimental Design
  • Human Factors Engineering
  • Industrial Engineering
  • Measurement
  • Operations Research
  • Photographs
  • Photography
  • Target Acquisition

Fields of Study

  • Physics

Readers

  • Computer Vision.
  • Geodesy
  • Image Processing and Computer Vision.