| 基于双向轮廓跟踪的面部轮廓线生成算法 |
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| 引用本文： | 郑丽萍,李光耀,薛凌燕. 基于双向轮廓跟踪的面部轮廓线生成算法[J]. 计算机工程与设计, 2010, 31(2) |
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| 作者姓名： | 郑丽萍 李光耀 薛凌燕 |
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| 作者单位： | 1. 聊城大学,计算机学院,山东,聊城,252059
2. 同济大学CAD研究中心,上海,201804 |
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| 摘 要： | 为了提高医学图像中面部轮廓线的分割效果,提出一种新的面部轮廓线生成算法(bidirectional contour tracking,BCT).该算法首先利用边缘检测算法对CT图像进行检测,然后利用头部CT图像中各组织的灰度特征和图像的对称性,对检测后的图像进行双向轮廓跟踪,并获得面部的轮廓线.另外,根据面部轮廓线的特点,使用中点法可生成辅助轮廓线.以一组颅脑CT图像为例来验证算法的效果,实验结果表明,新的生成算法提高了轮廓线的生成速度,并有很好的分割效果.
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| 关 键 词： | 图像分割 灰度值 边缘检测 轮廓跟踪 辅助轮廓线 |
Generation algorithm of facial contour lines based on bidirectional contour tracking |
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| ZHENG Li-ping,LI Guang-yao,XUE Ling-yan. Generation algorithm of facial contour lines based on bidirectional contour tracking[J]. Computer Engineering and Design, 2010, 31(2) |
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| Authors: | ZHENG Li-ping LI Guang-yao XUE Ling-yan |
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| Affiliation: | ZHENG Li-ping1,LI Guang-yao2,XUE Ling-yan1(1.School of Computer Science,Liaocheng University,Liaocheng 252059,China,2.CAD Research Center,Tongji University,Shanghai 201804,China) |
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| Abstract: | To improve the segmentation effect of facial contour lines in medical image,a novel generation algorithm of facial contour lines,which is called bidirectional contour tracking(BCT),is proposed.At first,edge detection algorithm with specific threshold is used to detect CT image.Then,according to the features of the grayscale of head CT image and the image symmetry,bidirectional contour tracking algorithm is used to segment images which is detected.At last,facial contour lines are generated.Otherwise,accordin... |
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| Keywords: | image segmentation gray value edge detection contour tracking auxiliary contour |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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