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Proceedings Paper

Information Content Of Images Degraded By Speckle Noise
Author(s): H. H. Arsenault; G. April
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Paper Abstract

After a homomorphic transformation has been used to transform speckle noise into additive signal-independent noise, classical techniques are used to evaluate the number of discerni-ble grey levels and the information capacity of images degraded by fully developed speckle noise. The probability distributions developed earlier by us are used to evaluate the required probabilities of error. Expressions are derived for square and for circular apertures. The information capacity is found to have a maximum of about 0.2 bits per speckle. The spatial frequency resolution required to obtain a given signal to noise ratio by spatial integration is evaluated.

Paper Details

Date Published: 25 November 1985
PDF: 6 pages
Proc. SPIE 0556, Intl Conf on Speckle, (25 November 1985); doi: 10.1117/12.949539
Show Author Affiliations
H. H. Arsenault, Universite Laval (Canada)
G. April, Universite Laval (Canada)

Published in SPIE Proceedings Vol. 0556:
Intl Conf on Speckle
Henri H. Arsenault, Editor(s)

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