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Indexed by:会议论文

Date of Publication:2005-05-27

Included Journals:EI、CPCI-S、Scopus

Volume:2

Page Number:930-933

Abstract:Ultrasonic images are generally affected by multiplicative shot noise. This paper analyzes and models the coefficients of 2-D multiresolution wavelet decomposition of logarithmically transformed images using alpha stable distribution. We propose a new function that performs a nonlinear operation on the data of classifying the coefficients, thus get a new noise-removal method based on multiresolution wavelet decomposition and alpha stable model.