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| 基于Mumford-Shah模型的高精度MR图像轮廓提取算法 | |
| 引用本文： | 原达,张彩明,李晋江,刘晓华.基于Mumford-Shah模型的高精度MR图像轮廓提取算法[J].计算机学报,2009,32(2). |
| 作者姓名： | 原达 张彩明 李晋江 刘晓华 |
| 作者单位： | 1. 山东大学计算机科学与技术学院,济南,250100;山东工商学院计算机科学与技术学院,山东,烟台,264005 2. 山东大学计算机科学与技术学院,济南,250100 3. 山东工商学院计算机科学与技术学院,山东,烟台,264005 |
| 摘 要： | 提出了基于曲线演化的MR边界轮廓精确提取方法.针对MR图像边缘模糊和高噪声问题,改进Mum-ford-Shah曲线演化模型,将模糊聚类引入到轮廓演化能量模型中,降低对非规则细节和噪声的敏感性;利用水平集和半隐式的加性-乘性算子分裂数值方案进行轮廓线演化的迭代计算,提高精度和计算效率.实验表明这种方法可以对边界模糊和高噪声的轮廓进行有效提取. |
| 关 键 词： | 曲线演化 轮廓提取 水平集 算子分裂 |
A High-Accuracy Contour Extraction Algorithm for MR Images Based on Mumford-Shah Model |
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| YUAN Da,ZHANG Cai-Ming,LI Jin-Jiang,LIU Xiao-Hua.A High-Accuracy Contour Extraction Algorithm for MR Images Based on Mumford-Shah Model[J].Chinese Journal of Computers,2009,32(2). | |
| Authors: | YUAN Da ZHANG Cai-Ming LI Jin-Jiang LIU Xiao-Hua |
| Affiliation: | School of Computer Science and Technology;Shandong University;Jinan 250100;School of Computer Science and Technology;Shandong Institute of Business and Technology;Yantai;Shandong 264005 |
| Abstract: | This paper proposes a high-accuracy contour extraction algorithm based on curve evolution model.Face to the blurred edges and high noise in MR image,Mumford-shah model is improved here and fuzzy clustering is used to establish active contour model to lower sensitivity to irregular details and noises.The derivation of the level set and the semi-implicit implementation based on the additive-multiplicative operator splitting is performed in order to improve the computing efficiency and accuracy.Experimental re... |
| Keywords: | curve evolution contour extraction level set operator splitting |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |