A Fast Method for Despeckling in Wavelet Domain Using Laplacian Prior and Rayleigh Noise

A Fast Method for Despeckling in Wavelet Domain Using Laplacian Prior and Rayleigh Noise Publisher

Rabbani H¹

Source: 5th Int. Conference on Information Technology and Applications in Biomedicine, ITAB 2008 in conjunction with 2nd Int. Symposium and Summer School on Biomedical and Health Engineering, IS3BHE 2008 Published:2008

Abstract

In this paper we introduce a new speckle noise reduction algorithm using new probability density functions (pdfs) for log-transformed data in wavelet domain, i.e., Laplacian pdf for clean data and Rayleigh pdf for noise. The maximum a posteriori (MAP) estimator is employed to obtain the clean data from noisy observation. The Laplacian pdf is able to model the heavy-tailed nature of wavelet coefficients and since our new despeckling algorithm is implemented locally, we can model the most important dependency between wavelet coefficients. We examine our fast algorithm for both real and artificial speckle noise and achieve satisfactory performance both visually and qualitatively. © 2008 IEEE.

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Hossein Rabbani (5)

Raheleh Kafieh (2)

Style	Citing Format
MLA	Rabbani H. "A Fast Method for Despeckling in Wavelet Domain Using Laplacian Prior and Rayleigh Noise." 5th Int. Conference on Information Technology and Applications in Biomedicine, ITAB 2008 in conjunction with 2nd Int. Symposium and Summer School on Biomedical and Health Engineering, IS3BHE 2008, vol. , no. , 2008, pp. 374-377.
APA	Rabbani H (2008). A Fast Method for Despeckling in Wavelet Domain Using Laplacian Prior and Rayleigh Noise. 5th Int. Conference on Information Technology and Applications in Biomedicine, ITAB 2008 in conjunction with 2nd Int. Symposium and Summer School on Biomedical and Health Engineering, IS3BHE 2008, (), 374-377.
Chicago	Rabbani H. "A Fast Method for Despeckling in Wavelet Domain Using Laplacian Prior and Rayleigh Noise." 5th Int. Conference on Information Technology and Applications in Biomedicine, ITAB 2008 in conjunction with 2nd Int. Symposium and Summer School on Biomedical and Health Engineering, IS3BHE 2008 , no. (2008): 374-377.
Harvard	Rabbani H (2008) 'A Fast Method for Despeckling in Wavelet Domain Using Laplacian Prior and Rayleigh Noise', 5th Int. Conference on Information Technology and Applications in Biomedicine, ITAB 2008 in conjunction with 2nd Int. Symposium and Summer School on Biomedical and Health Engineering, IS3BHE 2008, (), pp. 374-377.
Vancouver	Rabbani H. A Fast Method for Despeckling in Wavelet Domain Using Laplacian Prior and Rayleigh Noise. 5th Int. Conference on Information Technology and Applications in Biomedicine, ITAB 2008 in conjunction with 2nd Int. Symposium and Summer School on Biomedical and Health Engineering, IS3BHE 2008. 2008;():374-377.
BibTex	@article{ author = {Rabbani H}, title = {A Fast Method for Despeckling in Wavelet Domain Using Laplacian Prior and Rayleigh Noise}, journal = {5th Int. Conference on Information Technology and Applications in Biomedicine, ITAB 2008 in conjunction with 2nd Int. Symposium and Summer School on Biomedical and Health Engineering, IS3BHE 2008}, volume = {}, number = {}, pages = {374-377}, year = {2008} }
RIS	TY - JOUR AU - Rabbani H TI - A Fast Method for Despeckling in Wavelet Domain Using Laplacian Prior and Rayleigh Noise JO - 5th Int. Conference on Information Technology and Applications in Biomedicine, ITAB 2008 in conjunction with 2nd Int. Symposium and Summer School on Biomedical and Health Engineering, IS3BHE 2008 VL - IS - SP - 374 EP - 377 PY - 2008 ER -

Style

Citing Format

MLA

Rabbani H. "A Fast Method for Despeckling in Wavelet Domain Using Laplacian Prior and Rayleigh Noise." 5th Int. Conference on Information Technology and Applications in Biomedicine, ITAB 2008 in conjunction with 2nd Int. Symposium and Summer School on Biomedical and Health Engineering, IS3BHE 2008, vol. , no. , 2008, pp. 374-377.

APA

Rabbani H (2008). A Fast Method for Despeckling in Wavelet Domain Using Laplacian Prior and Rayleigh Noise. 5th Int. Conference on Information Technology and Applications in Biomedicine, ITAB 2008 in conjunction with 2nd Int. Symposium and Summer School on Biomedical and Health Engineering, IS3BHE 2008, (), 374-377.

Chicago

Harvard

Rabbani H (2008) 'A Fast Method for Despeckling in Wavelet Domain Using Laplacian Prior and Rayleigh Noise', 5th Int. Conference on Information Technology and Applications in Biomedicine, ITAB 2008 in conjunction with 2nd Int. Symposium and Summer School on Biomedical and Health Engineering, IS3BHE 2008, (), pp. 374-377.

Vancouver

Rabbani H. A Fast Method for Despeckling in Wavelet Domain Using Laplacian Prior and Rayleigh Noise. 5th Int. Conference on Information Technology and Applications in Biomedicine, ITAB 2008 in conjunction with 2nd Int. Symposium and Summer School on Biomedical and Health Engineering, IS3BHE 2008. 2008;():374-377.

BibTex

@article{ author = {Rabbani H}, title = {A Fast Method for Despeckling in Wavelet Domain Using Laplacian Prior and Rayleigh Noise}, journal = {5th Int. Conference on Information Technology and Applications in Biomedicine, ITAB 2008 in conjunction with 2nd Int. Symposium and Summer School on Biomedical and Health Engineering, IS3BHE 2008}, volume = {}, number = {}, pages = {374-377}, year = {2008} }

RIS

TY - JOUR
AU - Rabbani H
TI - A Fast Method for Despeckling in Wavelet Domain Using Laplacian Prior and Rayleigh Noise
JO - 5th Int. Conference on Information Technology and Applications in Biomedicine, ITAB 2008 in conjunction with 2nd Int. Symposium and Summer School on Biomedical and Health Engineering, IS3BHE 2008
VL -
IS -
SP - 374
EP - 377
PY - 2008
ER -

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