Feasibility Test of a Target Contrast Measurement Technique

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 li...

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1. Verfasser:	Coursey, James E
Format:	Report
Sprache:	eng
Schlagworte:	ATMOSPHERES ATTENUATION CAMERA LENSES DENSITOMETERS EQUATIONS FEASIBILITY STUDIES LIGHT TRANSMISSION METEOROLOGICAL PHENOMENA Optical Detection and Detectors OPTICAL PROPERTIES OPTICS PHOTOGRAPHIC FILM PHOTOGRAPHIC FILTERS PHOTOGRAPHY PHOTOMETERS STATISTICAL ANALYSIS TARGET ACQUISITION TARGET DISCRIMINATION TARGETS TELEPHOTO LENSES
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Zusammenfassung:	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)