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Method for curve representation against rotation,scaling and translation
Author(s): ZENG Jiexian, HU Haixia, LI Gang
Pages: 140-
144,157
Year: 2009
Issue:
31
Journal: Computer Engineering and Applications
Keyword: 曲线描述; 子束夹角链码; 二叉树; 链码匹配;
Abstract: 利用Beamlet基容易计算长度的特点,先求出Beamlet曲线的长度,然后根据二叉树层次方式来分割曲线,并将各分割点依次连接成直线段,再计算出所有两两相邻直线段之间的一系列的夹角,得到曲线的Beamlet夹角链码,最后利用两条曲线的Beamlet夹角链码的差异度来度量它们之间的相似性.该方法不仅具有旋转、尺度、平移不变性以及较好的鲁棒性,而且计算量小,匹配速度快.通过实验结果和算法分析,证明了该...
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