Accession Number : AD0910699

Title :   Feasibility Test of a Target Contrast Measurement Technique.

Descriptive Note : Final rept. 15 Apr 72-11 Feb 73,

Corporate Author : ARMAMENT DEVELOPMENT AND TEST CENTER EGLIN AFB FL

Personal Author(s) : Coursey, James E.

Report Date : MAY 1973

Pagination or Media Count : 96

Abstract : This report describes a test conducted to determine the feasibility of using a photographic/microdensitometer technique to determine target contrast at event times for combat air support and target detection/acquisition/identification tests. Data obtained from this test, with related problems and limitations, are presented and analyzed. The data consist primarily of target luminances and contrasts as functions of atmospheric attenuation, slant ranges to the targets, elevation angles, weather parameters, and camera/lens combinations. Statistical comparisons are made between photometrically determined and microdensitometer derived luminances, contrasts, and contrast transmission parameters. It was determined that it is feasible to use a photographic/microdensitometer technique to determine target-to-background contrasts. (Author)

Descriptors :   (*TARGET ACQUISITION, FEASIBILITY STUDIES), (*DENSITOMETERS, TARGET DISCRIMINATION), (*PHOTOGRAPHY, TARGET DISCRIMINATION), OPTICS, TARGETS, OPTICAL PROPERTIES, LIGHT TRANSMISSION, ATMOSPHERES, ATTENUATION, METEOROLOGICAL PHENOMENA, CAMERA LENSES, TELEPHOTO LENSES, PHOTOGRAPHIC FILM, PHOTOGRAPHIC FILTERS, PHOTOMETERS, STATISTICAL ANALYSIS, EQUATIONS.

Subject Categories : Optical Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE