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Proceedings Paper

Derivation Of Transmittance In A Dust Environment Using Imaging Technology
Author(s): Carlos McDonald; John W Stahoviak; Harold N Ballard; Robert Olsen; Jagir S Randhawa
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Paper Abstract

Photopic transmittances within and through localized, inhomogeneous dust clouds were estimated by contrast transmittances derived from image processing of video recordings of dust scenes which included optical targets contrasted against the sky or terrain background. Comparison between the estimated contrast transmittances and actual transmittances measured through dust clouds by a transmissometer yielded correlation coefficients of up to 0.933. The contrast transmittances within the dust clouds were estimated from the ratios of contrast between adjacent targets, absolute estimates, and by the use of black and white targets. Comparison between these latter methods yielded correlation coefficients of up to 0.987.

Paper Details

Date Published: 10 August 1988
PDF: 12 pages
Proc. SPIE 0926, Optical, Infrared, Millimeter Wave Propagation Engineering, (10 August 1988); doi: 10.1117/12.945767
Show Author Affiliations
Carlos McDonald, The University of Texas at El Paso (United States)
John W Stahoviak, The University of Texas at El Paso (United States)
Harold N Ballard, The University of Texas at El Paso (United States)
Robert Olsen, U.S. Army Atmospheric Sciences Laboratory (United States)
Jagir S Randhawa, U.S. Army Atmospheric Sciences Laboratory (United States)


Published in SPIE Proceedings Vol. 0926:
Optical, Infrared, Millimeter Wave Propagation Engineering
Norman S. Kopeika; Walter B. Miller, Editor(s)

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