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Prediction of Viking lander camera image qualityFormulations are presented that permit prediction of image quality as a function of camera performance, surface radiance properties, and lighting and viewing geometry. Predictions made for a wide range of surface radiance properties reveal that image quality depends strongly on proper camera dynamic range command and on favorable lighting and viewing geometry. Proper camera dynamic range commands depend mostly on the surface albedo that will be encountered. Favorable lighting and viewing geometries depend mostly on lander orientation with respect to the diurnal sun path over the landing site, and tend to be independent of surface albedo and illumination scattering function. Side lighting with low sun elevation angles (10 to 30 deg) is generally favorable for imaging spatial details and slopes, whereas high sun elevation angles are favorable for measuring spectral reflectances.
Document ID
19760015424
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Technical Note (TN)
Authors
Huck, F. O. (NASA Langley Research Center Hampton, VA, United States)
Burcher, E. E. (NASA Langley Research Center Hampton, VA, United States)
Jobson, D. J. (NASA Langley Research Center Hampton, VA, United States)
Wall, S. D. (NASA Langley Research Center Hampton, VA, United States)
Date Acquired
September 3, 2013
Publication Date
April 1, 1976
Subject Category
Instrumentation And Photography
Report/Patent Number
L-10626
NASA-TN-D-8148
Accession Number
76N22512
Funding Number(s)
PROJECT: RTOP 815-20-04-03
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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