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| 基于各向异性扩散的B超图像去噪 | |
| 引用本文： | 哈章,李传富,王金萍,周康源,杨振森. 基于各向异性扩散的B超图像去噪[J]. 北京生物医学工程, 2008, 27(1): 1-5 |
| 作者姓名： | 哈章 李传富 王金萍 周康源 杨振森 |
| 作者单位： | 中国科学技术大学电子工程与信息科学系,合肥,230027;安徽中医学院第一附属医院,合肥,230031 |
| 基金项目： | 安微省教委自然科学基金重点研究项目 |
| 摘 要： | 提出了一种基于各向异性扩散方程的B超图像斑点噪声抑制的算法.斑点噪声是由超声成像机制引起的固有噪声形态,它对B超图像的特征提取、识别和分析带来极大困难.特别是对于边缘提取,斑点噪声使得传统的提取算法几乎都无法取得理想的效果.各向异性扩散方程是一种能有效抑制斑点噪声的算法,本文针对原始算法中扩散系数过饱和的问题以及斑点尺度系数选择的不足,提出了改进的方法,从而在抑制斑点噪声的同时保留甚至增强B超图像中的边缘细节信息,为下一步的边缘提取提供了有效保障. |
| 关 键 词： | B超图像 斑点噪声 各向异性扩散 |
| 文章编号： | 1002-3208(2008)04-0001-05 |
| 修稿时间： | 2007-04-27 |
Speckle reducing for B-scan ultrasound image based on anisotropic diffusion |
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| HA Zhang,LI Chuanfu,WANG Jinping,ZHOU Kangyuan,YANG Zhensen. Speckle reducing for B-scan ultrasound image based on anisotropic diffusion[J]. Beijing Biomedical Engineering, 2008, 27(1): 1-5 | |
| Authors: | HA Zhang LI Chuanfu WANG Jinping ZHOU Kangyuan YANG Zhensen |
| Affiliation: | HA Zhang1,LI Chuanfu2,WANG Jinping2,ZHOU Kangyuan1,YANG Zhensen1 1 Department of Electronic Engineering , Information Sciences,University of Science , Technology of China,Hefei 230027,2 First Affiliated Hospital of Anhui Traditional Chinese Medicine College,Hefei 230031 |
| Abstract: | An algorithm based on the anisotropic diffusion equation is presented to suppress the speckle noise of B-Scan ultrasound image.The speckle noise is the inherent noise pattern evoked by the mechanism of ultrasound imaging.It brings great difficulties to the feature extraction,recognition and analysis.Especially in the edge extraction,the speckle noise makes none of the conventional extraction algorithms get good result.Anisotropic diffusion equation can suppress the speckle noise effectively.Aimed at the ove... |
| Keywords: | B-scan ultrasound image speckle noise anisotropic diffusion |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |