| 基于区域信息的水平集模型 |
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| 引用本文： | 詹天明,张建伟,陈允杰,葛琦.基于区域信息的水平集模型[J].计算机应用与软件,2009,26(9):244-246. |
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| 作者姓名： | 詹天明 张建伟 陈允杰 葛琦 |
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| 作者单位： | 南京信息工程大学数理学院,江苏,南京,210044 |
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| 摘 要： | 水平集模型在对具有细长拓扑结构和弱边界的核磁共振图像分割时得不到真实解,针对这一问题,提出一种新的基于区域信息的水平集分割模型.首先运用形态学方法预估计初始背景,采用差分算法提取最终背景,原始图像与背景图像作减法得到含有待分割目标的图像,定义一个新的相似度以及基于相似度信息的水平集速度函数取代传统水平集的速度函数.结果表明这种方法具有很好的分割效果.
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| 关 键 词： | 水平集 速度函数 核磁共振图像 区域信息 背景 |
A NEW LEVEL SET MODEL BASED ON REGION INFORMATION |
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| Zhan Tianming,Zhang Jianwei,Chen Yunjie,Ge Qi.A NEW LEVEL SET MODEL BASED ON REGION INFORMATION[J].Computer Applications and Software,2009,26(9):244-246. |
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| Authors: | Zhan Tianming Zhang Jianwei Chen Yunjie Ge Qi |
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| Affiliation: | College of Math and Physics;Nanjing University of Information and Technology;Nanjing 210044;Jiangsu;China |
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| Abstract: | Aimed at the problem of real solution the level set model cannot get in segmenting the MRI image with slight topological structure and weak boundary,a new model of level set segmentation based on region information has been introduced in this article.We estimate initial background by mathematical morphology,after extracting the final background based on difference algorithm,an image with the target to be segmented is obtained by subduction operation made between original image and background image,and a new... |
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| Keywords: | Level set Speed function MR image Region information Background |
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