| 基于改进Hough变换的角点提取 |
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| 引用本文： | 陈洪波,徐晓蓉.基于改进Hough变换的角点提取[J].计算机应用与软件,2008,25(2):57-60,76. |
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| 作者姓名： | 陈洪波 徐晓蓉 |
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| 作者单位： | 湖南文理学院计算机科学与技术系,湖南,常德,415000;湖南文理学院计算机科学与技术系,湖南,常德,415000 |
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| 摘 要： | 提出了一种有效的角点提取的方法.在该方法中,角点将被定义为二条(或二条以上)直线的交点,并利用Hough变换来检测直线.若存在二条(或二条以上)直线经过某点,则该点就被认为是角点(角点候选点).对Hough变换中的映射方式作了改进,在传统的映射中采用的是"一对多"或"多对一"的映射方式,而在改进方式中采用的是"多对多"的映射方式.在这种映射方式下,Hough变换的参数空间不会发生峰值扩散的现象,这样会更有利于峰值的检测(直线检测),从而更有利于角点的检测.实验证明,该方法能精确有效地提取出图像中的角点.
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| 关 键 词： | Hough变换 角点提取 多-多映射 |
| 收稿时间： | 2006-02-20 |
| 修稿时间： | 2006年2月20日 |
CORNER DETECTION BASED ON IMPROVED HOUGH TRANSFORM |
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| Chen Hongbo,Xu Xiaorong.CORNER DETECTION BASED ON IMPROVED HOUGH TRANSFORM[J].Computer Applications and Software,2008,25(2):57-60,76. |
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| Authors: | Chen Hongbo Xu Xiaorong |
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| Affiliation: | Chen Hongbo Xu Xiaorong (Department of Computer Science , Technology,Hunan University of Arts , Science,Changde 415000,Hunan,China) |
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| Abstract: | A new and effective method of corner detection is proposed.The corner is defined as the point of intersection of two(or more) lines,and the Hough transform is used to detect the lines.The feature point,by which there are two or more lines passed,would be regarded as corner(or candidate corner).The mapping scheme in Hough transform is improved.The point-line mapping scheme,where a pixel in image is mapped to a line(or a curve),is used in traditional Hough transform,while the point-multiline scheme is used in... |
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| Keywords: | Hough transform Comer detection Many-many mapping |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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