Accession Number : AD0647376

Title :   RELATIVE EFFECTIVENESS OF DIFFERENT VIEWING DEVICES FOR PHOTO INTERPRETATION,

Corporate Author : SYSTEM DEVELOPMENT CORP FALLS CHURCH VA

Personal Author(s) : Mathers,Boyd L.

Report Date : NOV 1966

Pagination or Media Count : 34

Abstract : A study was undertaken to assess the usefulness of different viewing devices -- light table and projection -- designed to aid interpreters in extracting information from imagery. Particular consideration was given to variations in magnification, scale, and image quality as applied to viewing conditions. Interpreter performance in screening, quick-time, and detailed interpretation tasks was compared by three methods--rear projection (optic), light table, and magnified projection. In a separate experiment, using projection only, interpreter performance on the same three tasks was compared when different levels of image quality, scale, and enlargement were introduced. Significantly better performance resulted under the light table method than the other two methods in quick-time tasks. Imagery of the larger scale yielded significantly better performance on both quick-time and detailed interpretation tasks. (Author)

Descriptors :   (*PHOTOINTERPRETATION, EFFECTIVENESS), LABORATORY EQUIPMENT, PHOTOGRAPHIC PROJECTORS, DISPLAY SYSTEMS, PHOTOGRAPHIC INTELLIGENCE, PHOTOINTERPRETABILITY, PHOTOINTERPRETERS, PERFORMANCE(HUMAN)

Subject Categories : Photography
      Military Intelligence

Distribution Statement : APPROVED FOR PUBLIC RELEASE