| 基于曲率特征的轮廓匹配方法 |
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| 引用本文： | 张志刚,周术诚,马君,罗养霞. 基于曲率特征的轮廓匹配方法[J]. 计算机工程与应用, 2008, 44(14): 57-58. DOI: 10.3778/j.issn.1002-8331.2008.14.015 |
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| 作者姓名： | 张志刚 周术诚 马君 罗养霞 |
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| 作者单位： | 西安财经学院,信息学院,西安,710061;福建农林大学,计算机与信息学院,福州,350002 |
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| 摘 要： | 首先对轮廓曲线进行多边形近似，然后通过Hermite插值曲线求出多边形各顶点的曲率作为特征，最后以Hausdorff距离为准则进行轮廓线匹配。算法充分利用了轮廓线的几何信息，匹配速度快，准确度高，具有一定的旋转不变性。
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| 关 键 词： | 轮廓匹配 曲率 Hausdorff距离 |
| 文章编号： | 1002-8331(2008)14-0057-02 |
| 收稿时间： | 2007-08-28 |
| 修稿时间： | 2007-08-28 |
Contour matching based on curvature feature |
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| ZHANG Zhi-gang,ZHOU Shu-cheng,MA Jun,LUO Yang-xia. Contour matching based on curvature feature[J]. Computer Engineering and Applications, 2008, 44(14): 57-58. DOI: 10.3778/j.issn.1002-8331.2008.14.015 |
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| Authors: | ZHANG Zhi-gang ZHOU Shu-cheng MA Jun LUO Yang-xia |
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| Affiliation: | 1.Department of Information，Xi’an University of Finance and Economics，Xi’an 710061，China 2.College of Computer and Information，Fujian Agriculture and Forestry University，Fuzhou 350002，China |
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| Abstract: | Contours are first represented by polygonal approximation.Next,curvature of polygonal vertices are calculated by Hermite interpolation.Finally,contour matching is measured by Hausdorff distance.For geometrical characters of contour have been taken advantage,this method is invariant to rotation and has better performance on precision and speed. |
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| Keywords: | contour matching curvature Hausdorff distance |
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