QIU Tianshuang   

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Language:English

Paper Publications

Title of Paper:基于分数阶非高斯模型的超声图像散粒噪声特性分析

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Date of Publication:2008-06-20

Journal:九江医学

Volume:23

Issue:2

Page Number:1-5

ISSN No.:1006-3838

Key Words:稳定分布;乘性散粒噪声;医学超声图像

Abstract:医学超声图像在应用中遇到的一个重要问题是如何消除图像中由于散射现象的相干本质而引起的多径乘性散粒噪声. 稳定分布可以用来描述重拖尾非高斯尖峰脉冲信号和噪声.本文利用一种散粒噪声模型,通过分析与稳定分布建模,提出了一种基于稳定分布模型的超声图象散粒噪声建模的新方法.仿真结果表明,该建模方法能更好地描述乘性散粒噪声.

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