Signal estimation using wavelet-Markov models

Matthew S. Crouse; Richard G. Baraniuk; Robert D. Nowak

Signal estimation using wavelet-Markov models

Matthew S. Crouse, Richard G. Baraniuk, Robert D. Nowak

Houston Methodist

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

10 Scopus citations

Abstract

Current wavelet-based statistical signal and image processing techniques such as shrinkage and filtering treat the wavelet coefficients as though they were statistically independent. This assumption is unrealistic; considering the statistical dependencies between wavelet coefficients can yield substantial performance improvements. In this paper, we develop a new framework for wavelet-based signal processing that employs hidden Markov models to characterize the dependencies between wavelet coefficients. To illustrate the power of the new framework, we derive a new algorithm for signal estimation in nonGaussian noise.

Original language	English (US)
Title of host publication	ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Editors	Anon
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	3429-3432
Number of pages	4
Volume	5
State	Published - 1997
Event	Proceedings of the 1997 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP. Part 1 (of 5) - Munich, Ger Duration: Apr 21 1997 → Apr 24 1997

Other

Other	Proceedings of the 1997 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP. Part 1 (of 5)
City	Munich, Ger
Period	4/21/97 → 4/24/97

ASJC Scopus subject areas

Signal Processing
Electrical and Electronic Engineering
Acoustics and Ultrasonics

Cite this

Signal estimation using wavelet-Markov models. / Crouse, Matthew S.; Baraniuk, Richard G.; Nowak, Robert D.
ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. ed. / Anon. Vol. 5 Institute of Electrical and Electronics Engineers Inc., 1997. p. 3429-3432.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Crouse, MS, Baraniuk, RG & Nowak, RD 1997, Signal estimation using wavelet-Markov models. in Anon (ed.), ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings. vol. 5, Institute of Electrical and Electronics Engineers Inc., pp. 3429-3432, Proceedings of the 1997 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP. Part 1 (of 5), Munich, Ger, 4/21/97.

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ER -

Signal estimation using wavelet-Markov models

Abstract

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ASJC Scopus subject areas

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