计算机工程与应用 ›› 2008, Vol. 44 ›› Issue (14): 57-58.
• 理论研究 • 上一篇 下一篇
张志刚1,周术诚2,马 君1,罗养霞1
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ZHANG Zhi-gang1,ZHOU Shu-cheng2,MA Jun1,LUO Yang-xia1
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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。
关键词: 轮廓匹配, 曲率, Hausdorff距离
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.
Key words: contour matching, curvature, Hausdorff distance
张志刚1,周术诚2,马 君1,罗养霞1. 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.
ZHANG Zhi-gang1,ZHOU Shu-cheng2,MA Jun1,LUO Yang-xia1. Contour matching based on curvature feature[J]. Computer Engineering and Applications, 2008, 44(14): 57-58.
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