| 一种改进的Hough圆检测算法 |
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| 引用本文： | 岳健,项学智.一种改进的Hough圆检测算法[J].应用科技,2006,33(6):74-76. |
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| 作者姓名： | 岳健 项学智 |
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| 作者单位： | 哈尔滨工程大学,信息与通信工程学院,黑龙江,哈尔滨,150001 |
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| 摘 要： | 普通Hough圆检测计算量大，且实际图像易受光照和背景不均匀等条件的影响，针对这些情况提出了一种将待检测圆图像先作边缘检测后，再对边缘图像进行粗匹配和精匹配，以实现圆检测的方法．粗匹配使用改进的SSDA算法进行，精匹配利用圆的两条不平行弦的中垂线相交于圆心的几何性质，对经典Hough变换加以改进，提高了检测速度．
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| 关 键 词： | 圆检测 模板匹配 圆Hough变换 |
| 文章编号： | 1009-671X（2006）06-0074-03 |
| 收稿时间： | 2005-07-01 |
| 修稿时间： | 2005年7月1日 |
An improved algorithm of Hough circle detection |
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| YUE Jian,XIANG Xue-zhi.An improved algorithm of Hough circle detection[J].Applied Science and Technology,2006,33(6):74-76. |
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| Authors: | YUE Jian XIANG Xue-zhi |
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| Abstract: | It consumes a lot of time when using Hough circle transformation to do circle detection. The image usually is influenced by illumination, uneven background and so on. A new idea of circle detection is proposed to detect the edge of circle first in image preprocess and deal with the edge image with rough matching and precise matching. Rough matching is accomplished by improved SSDA . Precise matching improved Hough circle transformation by using the characteristics of circle that perpendicular bisectors of two unparallel chords of a circle intersect at the center of the circle. The algorithm increases the performance of circle detection. |
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| Keywords: | SSDA |
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