Study of information content of SAR images

Author

Aragone, M. ; Caridi, A. ; Serpico, S.B. ; Moser, G. ; Cerra, D. ; Datcu, M.

fYear

2008

fDate

26-30 May 2008

Firstpage

1

Lastpage

6

Abstract

Recent and future space missions for Earth Observation grant a growing avaibility of high resolution SAR images. The analysis of this data tipology critically requires exploiting the spatial-contextual information in the related images. In this paper we propose a contextual measure of the amount of information in a SAR image based on Gauss Markov Random Fields, which takes into account both the radiometric resolution and the spatial one. This is related to an analitical expression of the channel capacity associated to the SAR image, i.e. a channel affected by a Gamma distributed multiplicative noise.

Keywords

channel capacity; information theory; synthetic aperture radar; Gauss Markov random fields; SAR images; channel capacity; data tipology; gamma distributed multiplicative noise; information content; information theory; Data analysis; Earth; Gaussian processes; Image analysis; Image resolution; Information analysis; Markov random fields; Radiometry; Space missions; Spatial resolution; Gauss Markov Random Fields (GMRF); Information Theory (IT); SAR;

fLanguage

English

Publisher

ieee

Conference_Titel

Radar Conference, 2008. RADAR '08. IEEE

Conference_Location

Rome

ISSN

1097-5659

Print_ISBN

978-1-4244-1538-0

Electronic_ISBN

1097-5659

Type

conf

DOI

10.1109/RADAR.2008.4720890

Filename

4720890