计算机应用 ›› 2016, Vol. 36 ›› Issue (11): 3201-3206.DOI: 10.11772/j.issn.1001-9081.2016.11.3201

• 虚拟现实与数字媒体 • 上一篇    下一篇

基于图像块匹配的肾小球基底膜自动分割

李创权1, 路艳蒙2, 李穆1, 李明强1, 李然1, 曹蕾1   

  1. 1. 南方医科大学 生物医学工程学院, 广州 510515;
    2. 南方医科大学 基础医学院, 广州 510515
  • 收稿日期:2016-04-22 修回日期:2016-05-26 出版日期:2016-11-10 发布日期:2016-11-12
  • 通讯作者: 曹蕾
  • 作者简介:李创权(1990-),男,广东东莞人,硕士研究生,主要研究方向:图像分割;路艳蒙(1970-),女,内蒙古呼和浩特人,副教授,博士,主要研究方向:超微形态学、组织工程学;李穆(1990-),女,湖北天门人,硕士研究生,主要研究方向:图像处理;李明强(1992-),男,安徽阜阳人,主要研究方向:图像处理;李然(1992-),男,河南驻马店人,主要研究方向:图像处理;曹蕾(1974-),女,湖南沅江人,副教授,博士,主要研究方向:图像处理、软件工程。

Automatic segmentation of glomerular basement membrane based on image patch matching

LI Chuangquan1, LU Yanmeng2, LI Mu1, LI Mingqiang1, LI Ran1, CAO Lei1   

  1. 1. College of Biomedical Engineering, Southern Medical University, Guangzhou Guangdong 510515, China;
    2. College of Basic Medical Sciences, Southern Medical University, Guangzhou Guangdong 510515, China
  • Received:2016-04-22 Revised:2016-05-26 Online:2016-11-10 Published:2016-11-12

摘要: 为了实现肾小球基底膜的自动分割,提出了一种基于图像块匹配策略的图像自动分割方法。首先,针对肾小球基底膜的特点,将块匹配算法的搜索范围从一幅参考图像扩展到多幅参考图像,并采用了一种改进的搜索方式提高匹配效率;然后,开始搜索最优的图像匹配块;最后,提取最优匹配块对应的标记匹配块进行加权,重组为肾小球基底膜的初始分割结果,经形态学处理后即可得到基底膜最终的分割结果。在采集到的肾小球透射电(TEM)图像上进行测试,算法分割结果与病理专家手动分割结果之间的Jaccard相似系数最低为83%,最高为95%。实验结果表明所提方法能取得精度较高的分割结果。

关键词: 图像分割, 块匹配, 相似性, 透射电镜, 肾小球基底膜

Abstract: An automatic segmentation method based on image patch matching strategy was proposed to realize the automatic segmentation of glomerular basement membrane automatically. First of all, according to the characteristics of the glomerular basement membrane, the search range was extended from a reference image to multiple reference images, and an improved searching method was adopted to improve matching efficiency. Then,the optimal patches were searched out and the label image patches corresponding to the optimal patches were extracted, which were weighted by matching similarity. Finally, the weighted label patches were rearranged as the initial segmentation of glomerular basement membrane, from which the final segmentation could be obtained after morphological processing. On the glomerular Transmission Electron Microscopy (TEM) dataset, the Jaccard coefficient is between 83% and 95%. The experimental results show that the proposed method can achieve higher accuracy.

Key words: image segmentation, patch matching, similarity, transmission electron microscopy, glomerular basement membrane

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