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计算机工程 ›› 2010, Vol. 36 ›› Issue (16): 198-199. doi: 10.3969/j.issn.1000-3428.2010.16.071

• 图形图像处理 • 上一篇    下一篇

基于MS-FCM算法的MR图像分割方法

李 彬,陈武凡   

  1. (南方医科大学生物医学工程学院,广州 510515)
  • 出版日期:2010-08-20 发布日期:2010-08-17
  • 作者简介:李 彬(1964-),男,副教授、博士,主研方向:图像处理,模式识别;陈武凡,教授、博士生导师
  • 基金资助:

    国家“973”计划基金资助项目(30730036)

MR Images Segmentation Method Based on MS-FCM Algorithm

LI Bin, CHEN Wu-fan   

  1. (School of Biomedical Engineering, Southern Medical University, Guangzhou 510515)
  • Online:2010-08-20 Published:2010-08-17

摘要:

针对传统模糊C-均值(FCM)聚类算法在分割低信噪比图像时准确性较差的问题,提出一种用于MR图像分割的改进算法MS-FCM。针对脑部MR图像相邻像素属于同一分类的模糊隶属度相近的特性,在迭代过程中对隶属度数据集进行滤波,以降低噪声对聚类精度的影响。模拟脑部MR图像和临床脑部MR图像的分割实验证明,该算法可以提高图像分割精度。

关键词: 图像分割, 模糊C-均值聚类算法, MR图像, 模糊隶属度

Abstract:

Aiming at the problem that the accuracy is low when Fuzzy C-Means(FCM) clustering algorithm segments MR images with low signal-to-noise ratio, this paper proposes a modified algorithm named MS-FCM, and applies it in MR image segmentation. Considering the property that the membership values corresponding to the neighboring pixels which belong to the same cluster are similar, it filters membership data sets in the iterate process to decrease the influence on clustering accuracy caused by noise. Experiments on simulation brain MR images with different level noises and real brain MR image show that MS-FCM can improve the accuracy of segmentation.

Key words: image segmentation, Fuzzy C-Means(FCM) clustering algorithm, MR image, fuzzy membership

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