| 基于SUSAN和Hough变换的直线边缘亚像素定位方法 |
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| 引用本文： | 石晶欣,朱小锋,孙明磊,毕树生.基于SUSAN和Hough变换的直线边缘亚像素定位方法[J].光电工程,2008,35(6):89-94. |
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| 作者姓名： | 石晶欣 朱小锋 孙明磊 毕树生 |
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| 作者单位： | 1. 北京航空航天大学,机械工程及自动化学院,北京,100083
2. 北京市劳动保护科学研究所,北京,100054 |
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| 基金项目： | 国家高技术研究发展计划(863计划)
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国家211学科建设资助项目 |
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| 摘 要： | 提出了一种基于SUSAN算法和Hough变换的直线边缘亚像素定位方法.在该方法中,给出了SUSAN算法模板选择的依据,同时定义了直线边缘响应函数并引入加权Hough变换.首先,利用直线边缘响应函数对直线边缘进行提取;然后对具有响应值的灰度点进行Hough变换并将该响应值作为权值记入参数空间累加器,得到粗定位;在粗定位的基础上对映射区进行局部细化,并对区域内点进行拟合,最终得到直线边缘精定位.实验证明:直线边缘定位精度可达0.3 pixels,同时为解析曲线亚像素定位提供了一种新的思路.
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| 关 键 词： | 视觉 图像分析 SUSAN Hough变换 SUSAN Hough Transform 变换 直线边缘 亚像素 定位方法 Based Localization Edge Detection Straight 像素定位 解析曲线 pixels 定位精度 验证 精定位 拟合 内点 区域 局部 |
| 文章编号： | 1003-501X(2008)06-0089-06 |
| 收稿时间： | 2007/5/20 |
| 修稿时间： | 2007年5月20日 |
Method of Straight Edge Detection with Sub-pixel Localization Based on SUSAN and Hough Transform |
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| SHI Jing-xin,ZHU Xiao-feng,SUN Ming-lei,BI Shu-sheng.Method of Straight Edge Detection with Sub-pixel Localization Based on SUSAN and Hough Transform[J].Opto-Electronic Engineering,2008,35(6):89-94. |
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| Authors: | SHI Jing-xin ZHU Xiao-feng SUN Ming-lei BI Shu-sheng |
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| Affiliation: | SHI Jing-xin1,ZHU Xiao-feng2,SUN Ming-lei1,BI Shu-sheng1 ( 1. School of Mechanical Engineering , Automation,Beihang University,Beijing 100083,China,2. Beijing Municipal Institute of Labour Protection,Beijing 100054,China ) |
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| Abstract: | A new method of sub-pixel localization based on SUSAN and Hough transform was presented. The size of template selection was proposed and the straight edge response was defined in SUSAN algorithm. Meanwhile, weighted Hough transform was conducted. First, the straight edge response was used to extract edge. Then, the Hough transform was computed only when edge points of line had the value of the response and the value was added in an accumulator as a weight. The local areas of parameter space were divided for... |
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| Keywords: | vision image analysis SUSAN Hough transform |
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