Release Time:2019-03-12  Hits:

Indexed by: Conference Paper

Date of Publication: 2005-05-27

Included Journals: Scopus、CPCI-S、EI

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.