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| 基于改进Snake模型的医学图像分割 | |
| 引用本文： | 薛冰,高春庚,宋书中,刘丰年.基于改进Snake模型的医学图像分割[J].河南科技大学学报(自然科学版),2010,31(2):54-57. |
| 作者姓名： | 薛冰 高春庚 宋书中 刘丰年 |
| 作者单位： | 1. 河南城建学院,计算机科学与工程系,河南,平顶山,467044 2. 济源职业技术学院,计算机系,河南,济源,464600 3. 河南科技大学,电子信息工程学院,河南,洛阳,471003 |
| 基金项目： | 河南省重点科技攻关项目(082102210015) |
| 摘 要： | 活动轮廓模型(Snake模型)被广泛应用于医学图像分割之中,传统的Snake模型在分割图像时要求初始轮廓线必须给定在图像边缘附近,且难以收敛到凹陷轮廓。本文针对Snake模型的这点不足,通过改进外部能量项,提出了一种基于梯度矢量流活动轮廓模型的医学图像分割算法。该算法用梯度矢量流代替图像梯度进行外部能量的计算,克服了传统Snake模型力场范围小以及不能收敛于凹形边缘的缺点。实验结果表明:改进模型能够有效的分割心脏MRI图像,是一种有效的方法。 |
| 关 键 词： | 医学图像分割 Snake模型 梯度矢量流 |
Medical Image Segmentation Based on Improved Snake Model |
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| XUE Bing,GAO Chun-Geng,SONG Shu-Zhong,LIU Feng-Nian.Medical Image Segmentation Based on Improved Snake Model[J].Journal of Henan University of Science & Technology:Natural Science,2010,31(2):54-57. | |
| Authors: | XUE Bing GAO Chun-Geng SONG Shu-Zhong LIU Feng-Nian |
| Institution: | 1.Department of Computer Science & Engineering/a>;Henan University of Urban Construction/a>;Pingdingshan 467044/a>;China/a>;2.Department of Computer/a>;Jiyuan Vocational & Technical College/a>;Jiyuan 464600/a>;3.Electronic Information Engineering College/a>;Henan University of Science & Technology/a>;Luoyang 471003/a>;China |
| Abstract: | Active contour model is widely used in medical image segmentation.The snake algorithms known before can not deal with the concave regions and the initial contour must be set near the edge of the image.This paper presents a method for medical image segmentation by improving the external energy.In the calculation of the external energy,it uses gradient vector flow instead of gradient,which not only expands the effective range of the energy field,but also enhances the ability to deal with the concave edge.Expe... |
| Keywords: | Medical image segmentation Snake model Gradient vector flow |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |