Interactive algorithm based on fuzzy connectedness for CT image segmentation

doi:10.3778/j.issn.1002-8331.2009.11.065

Computer Engineering and Applications ›› 2009, Vol. 45 ›› Issue (11): 216-219.DOI: 10.3778/j.issn.1002-8331.2009.11.065

• 工程与应用 • Previous Articles Next Articles

Interactive algorithm based on fuzzy connectedness for CT image segmentation

LIU Yao-hui¹,BAO Su-su²,HUANG Zhan-peng³

1.Department of Computer Science，Xiangnan University，Chenzhou，Hunan 423000，China
2.College of Computer Science，South Normal University，Guangzhou 510631，China
3.College of Medical Information Engineering，Guangdong Pharmaceutial University，Guangzhou 510006，China

Received:2008-02-28 Revised:2008-05-12 Online:2009-04-11 Published:2009-04-11
Contact: LIU Yao-hui

基于模糊连接度的交互式CT图像分割算法

刘耀辉¹,鲍苏苏²,黄展鹏³

1.湘南学院计算机系，湖南郴州 423000
2.华南师范大学计算机学院，广州 510631
3.广东药学院医药信息工程学院，广州 510006

通讯作者: 刘耀辉

Abstract

Abstract: It’s a difficult task in segmentation of medical images how to extract Region Of Interesting（ROI） from CT.In this paper，an interactive algorithm based on fuzzy connectedness for CT image segmentation is proposed.Firstly，the lower and upper gray values of ROI are specified by users and the algorithm pre-segments the CT image with these values.Secondly，users select seeds from the pre-segmented image for object and background.The method computes fuzzy connectedness from each pixel to the seeds，and then divides each of them into object area or background by comparing connectedness.Finally，users can improve results by adding or removing object seeds or background seeds.Experiments show that the new algorithm can segment ROI correctly.

Key words: fuzzy connectedness, CT image, region growing, interactive segmentation

摘要： 如何准确地从CT图像中提取出感兴趣的组织，是医学图像分割中的难点。提出了一种基于模糊连接度的交互式CT图像分割算法：先根据用户指定的感兴趣区域的灰度范围预分割图像，然后用户从结果图像中选择目标和背景种子点，计算出各像素点与两类种子点的模糊连接度，最后根据连接度大小将像素点划分到目标或背景区域。分割过程中，用户可以通过增设或删除目标或背景种子点，修正分割的结果。实验表明，该算法能准确有效地分割出感兴趣区域。

关键词: 模糊连接度, CT图像, 区域生长, 交互式分割

LIU Yao-hui¹,BAO Su-su²,HUANG Zhan-peng³. Interactive algorithm based on fuzzy connectedness for CT image segmentation[J]. Computer Engineering and Applications, 2009, 45(11): 216-219.

刘耀辉¹,鲍苏苏²,黄展鹏³. 基于模糊连接度的交互式CT图像分割算法[J]. 计算机工程与应用, 2009, 45(11): 216-219.

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Interactive algorithm based on fuzzy connectedness for CT image segmentation

基于模糊连接度的交互式CT图像分割算法

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