| 一种基于曲率尺度空间的自适应角点检测方法 |
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| 引用本文： | 汪华琴,谈国新,钱小红,朱海燕.一种基于曲率尺度空间的自适应角点检测方法[J].计算技术与自动化,2007,26(2):123-127. |
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| 作者姓名： | 汪华琴 谈国新 钱小红 朱海燕 |
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| 作者单位： | 华中师范大学,教育信息技术工程研究中心,湖北,武汉,430079;华中师范大学,计算机科学系,湖北,武汉,430079;华中师范大学,教育信息技术工程研究中心,湖北,武汉,430079;华中师范大学,计算机科学系,湖北,武汉,430079 |
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| 基金项目： | 教育部高等学校创新工程重大项目培育基金
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湖北省武汉市科技攻关项目 |
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| 摘 要： | 角点是图像处理中的重要特征,基于曲率尺度空间技术,提出一种自适应角点检测方法.首先提取图像的轮廓,采用一个固定的低尺度计算所有轮廓点的曲率,并根据曲率得到候选角点集,然后用由自适应支持区域确定的角点角度和一个动态曲率阙值代替固定的阙值筛选出正确角点.实验结果证实该方法应用于复杂图像的精确性和稳定性.
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| 关 键 词： | 曲率尺度空间 角点检测 支持区域 候选角点 |
| 文章编号： | 1003-6199（2007）02-0123-05 |
| 收稿时间： | 2006-10-27 |
| 修稿时间： | 2006-10-27 |
An Adaptive Corner Detector Based on Curvature Scale Space |
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| WANG Hua-qin,TAN Guo-xin,QIAN Xiao-hong,ZHU Hai-yan.An Adaptive Corner Detector Based on Curvature Scale Space[J].Computing Technology and Automation,2007,26(2):123-127. |
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| Authors: | WANG Hua-qin TAN Guo-xin QIAN Xiao-hong ZHU Hai-yan |
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| Affiliation: | 1.Engineering Research Center for Educational Information and Technology, Huazhong Normal University, Wuhan 430079, China; 2.Department of Computer Science, Huazhong Normal University, Wuhan 430079, China |
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| Abstract: | The corner is an important feature in image processing, an adaptive corner detector is proposed based on curvature scale space technique in this paper. First,the contour curve is extracted for the image. According to the curvature calculated at a fix low scale for each point of the contour, corner candidates are obtained. Then, angles of corner candidates checked in an adaptive region of support and a dynamic curvature threshold are used instead of the fixed threshold to get true corners. Experimental results show that the proposed method offers an effective and robust solution to images containing widely different size features. |
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| Keywords: | curvature scale space comer detection region of support corner candidate |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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