Information Content Of Images Degraded By Speckle Noise

H. H. Arsenault; G. April

doi:10.1117/12.949539

25 November 1985 Information Content Of Images Degraded By Speckle Noise

H. H. Arsenault, G. April

Proceedings Volume 0556, Intl Conf on Speckle; (1985) https://doi.org/10.1117/12.949539
Event: 29th Annual Technical Symposium, 1985, San Diego, United States

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.

Citation Download Citation

H. H. Arsenault and G. April "Information Content Of Images Degraded By Speckle Noise", Proc. SPIE 0556, Intl Conf on Speckle, (25 November 1985); https://doi.org/10.1117/12.949539

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available