Abstract

Several optimal spatial filters that could be used in a coherent imaging system to remove post-detection linear distortions are obtained and their performance assessed. It is shown that the minimum mean square error filter approximates the usual inverse filter for low-contrast images. The performance of these compensation filters is illustrated by use of examples of one-dimensional signals.

© 1979 Optical Society of America

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Figures (5)

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Equations (33)

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