| 一种快速角点探测算子研究 |
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| 引用本文： | 何凯,安如,周绍光,金夏玲.一种快速角点探测算子研究[J].测绘学报,2005,34(3):223-227. |
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| 作者姓名： | 何凯 安如 周绍光 金夏玲 |
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| 作者单位： | 河海大学,土木工程学院,测绘工程系,江苏,南京,210098;河海大学,水资源环境学院,地理信息科学系,江苏,南京,210098 |
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| 摘 要： | 基于SUSAN和角点几何结构分析的思想提出一种改进的快速角点探测算子.首先进行角点粗探测,然后再对粗探测的结果进行角点几何结构分析,即图像中的像元如果为角点,它必须满足角点的圈层结构.通常认为角点处各个方向上灰度差变化都较大,所以角点响应函数采用反映角点突出性的响应函数,使提取的角点含有更高的信息量.实验证明,本算法提取的角点定位准确,快速有效,可以适用于实时图像处理.
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| 关 键 词： | 快速角点探测 角点几何结构 伪角点 计算速度 |
| 文章编号： | 1001-1595（2005）03-0223-05 |
| 收稿时间： | 08 10 2004 12:00AM |
| 修稿时间： | 2004-08-10 |
A Novel Fast Corner Detector |
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| HE Kai,AN Ru,ZHOU Shao-guang,JIN Xia-ling.A Novel Fast Corner Detector[J].Acta Geodaetica et Cartographica Sinica,2005,34(3):223-227. |
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| Authors: | HE Kai AN Ru ZHOU Shao-guang JIN Xia-ling |
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| Abstract: | An improved fast corner detector based on the thought of 'SUSAN corner detector' and the analysis of corner geometric structure is described in this paper.First,simple pre-detection is implemented.Then corner geometric structure analysis is applied to the result of pre-detection which supposed that a real corner must be accorded with a circle structure.It is generally considered that corner shows a strong two dimensional intensity difference,so the corner response function which reflects outstanding character of corner is applied in the approach in order to obtain corner that containing more information.Experiments have shown that the detected corners are accurately located and the approach is efficient which can be used for real-time processing. |
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| Keywords: | fast corner detector(FCD) corner structure detection false corner calculation speed |
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