| 基于一种新的Snake模型的序列图像边缘提取算法 |
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| 引用本文： | 马建林,崔志明,张娜敏,吴健,孙晓平.基于一种新的Snake模型的序列图像边缘提取算法[J].计算机应用,2008,28(4):982-985. |
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| 作者姓名： | 马建林 崔志明 张娜敏 吴健 孙晓平 |
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| 作者单位： | 1. 苏州大学,智能信息处理及应用研究所,江苏,苏州,215006
2. 西北工业大学,应用数学系,西安,710072 |
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| 摘 要： | 对医学图像数据中感兴趣区域（ROI）进行准确的边缘提取和分割，是对图像进行分析、理解和处理的重要前提。为克服现有Snake算法人工初始化轮廓不精确,迭代过程中曲线易被复杂背景吸引等缺点，提出基于一种改进Snake模型的序列图像边缘提取算法。该算法先利用序列图像相似性原理提取出近似边缘，然后将其平均分为4个子边缘，在每个子边缘上取数目均衡的Snake输入点，最后离散Snake的内力和外力，经过迭代得到最终边缘。实验结果表明：该方法能精确地提取出医学图像中复杂区域或畸形区域的边缘，且计算量较小。
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| 关 键 词： | 边缘提取 子边缘 Snake模型 序列图像 贪婪算法 |
| 文章编号： | 1001-9081(2008)04-0982-04 |
| 收稿时间： | 2007-10-15 |
| 修稿时间： | 2007年10月13 |
Boundary extracting algorithm for image sequence using a novel Snake model |
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| MA Jian-lin,CUI Zhi-ming,ZHANG Na-min,WU Jian,SUN Xiao-ping.Boundary extracting algorithm for image sequence using a novel Snake model[J].journal of Computer Applications,2008,28(4):982-985. |
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| Authors: | MA Jian-lin CUI Zhi-ming ZHANG Na-min WU Jian SUN Xiao-ping |
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| Affiliation: | MA Jian-lin1,CUI Zhi-ming1,ZHANG Na-min2,WU Jian1,SUN Xiao-ping1(1.Institute of Intelligent Information Processing , Application,Soochow University,Suzhou Jiangsu 215006,China,2.Department of Applied Mathematics,Northwestern Polytechnical University,Xi'an Shaanxi 710072,China) |
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| Abstract: | Boundary extraction and segmentation for Region of Interest(ROI)of medical image is an important prerequisite for analyzing,understanding and handling the images.In traditional algorithms,Snake curve initialized manually was inaccurate and easily attracted by the complex background.In order to overcome these shortcomings,a boundary extracting model of image sequence was proposed based on Snake model for medical image sequence with irregular region and complex features.Approximate boundary of image sequence ... |
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| Keywords: | boundary extracting sub-boundary Snake model image sequence greedy method |
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