Published January 15, 1981
| public
Journal Article
Open
Discrimination of form in images corrupted by speckle
- Creators
- Korwar, Vijaya N.
- Pierce, John R.
Abstract
The problem investigated is that of a human observer having to distinguish between certain specified geometrical forms corrupted by speckle-an idealization of the problem of a scientist studying a synthetic aperture radar map. Specifically, the cases of two simple alternative forms and of two and four orientations of a simple form have been considered. A theoretical model is developed for the observer's decision process by analogy with optimal receiver theory, and the probability of a correct decision is related to form parameters like size, contrast, and looks. These calculations are verified by psychophysical experiments using computer-simulated pictures.
Additional Information
© Copyright 1981 Optical Society of America Received 24 June 1980. We would like to thank various members of the Jet Propulsion Laboratory, in particular, E.C. Posner and Chialin Wu for helpful discussions and R.G. Piereson for financial support and use of the facilities used in the simulations. This work was carried out in part at the Jet Propulsion Laboratory, California. Institute of Technology, Pasadena, under contract NAS7-100, sponsored by the National Aeronautics and Space Administration.Files
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- 5182
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- CaltechAUTHORS:KORao81b
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