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Proceedings Paper

Differential Imaging System
Author(s): Honctsuk H. Kim; Gregory C. Elman
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Paper Abstract

In this study, a technique which enhances image contrast using differentials of radiances being measured from successively over-lapping footprints is discussed. One of the immediate advantages of this approach is to improve spatial resolution when the practical size limitation of detectors is reached. When diffraction is considered, radiometric accuracy at the higher spatial frequencies is decreased even though edge response (boundary crossing sharpness) will improve. For instance, an imager system based on this principle could have a primary aperture no larger than 30 cm diameter yet be capable of resolving a ground footprint as small as 2 m from a 780 km altitude.

Paper Details

Date Published: 30 January 1990
PDF: 10 pages
Proc. SPIE 1153, Applications of Digital Image Processing XII, (30 January 1990); doi: 10.1117/12.962355
Show Author Affiliations
Honctsuk H. Kim, NASA Goddard Space Flight Center (United States)
Gregory C. Elman, Ressler Associates Inc (United States)

Published in SPIE Proceedings Vol. 1153:
Applications of Digital Image Processing XII
Andrew G. Tescher, Editor(s)

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