Analysis of interscale and intrascale dependencies between image wavelet coefficients

Author

Liu, Juan ; Moulin, Pierre

Author_Institution

Beckman Inst. for Adv. Sci. & Technol., Illinois Univ., Urbana, IL, USA

Volume

1

fYear

2000

fDate

2000

Firstpage

669

Abstract

We develop an information-theoretic analysis of dependencies between image wavelet coefficients. The dependencies are measured using mutual information, which has a direct link with data compression and estimation performance. Mutual information can be computed analytically for the special case where the image is a stationary autoregressive (AR)-1 Gaussian process. We have also developed methods to compute mutual information experimentally from wavelet domain image data. Our mutual-information analysis provides a mechanism for model evaluation and comparison

Keywords

Gaussian processes; autoregressive processes; data compression; image coding; information theory; transform coding; wavelet transforms; AR-1 Gaussian process; data compression; image compression; image wavelet coefficients; information-theoretic analysis; interscale dependence; intrascale dependence; mutual information; stationary autoregressive Gaussian process; Data compression; Entropy; Gaussian processes; Image analysis; Image coding; Information analysis; Mutual information; Performance analysis; Wavelet coefficients; Wavelet domain;

fLanguage

English

Publisher

ieee

Conference_Titel

Image Processing, 2000. Proceedings. 2000 International Conference on

Conference_Location

Vancouver, BC

ISSN

1522-4880

Print_ISBN

0-7803-6297-7

Type

conf

DOI

10.1109/ICIP.2000.901047

Filename

901047