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基于H-EMD的形状上下文特征形状匹配方法

, PP. 1639-1643

Keywords: 直方图匹配,推土机距离,基于直方图的推土机距离,形状上下文特征,形状匹配

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Abstract:

为了快速有效利用推土机距离(EMD)模型计算直方图间的交叉相似度,提出一种基于直方图的EMD(H-EMD)模型.将原始模型对应的线性规划问题中变量数目进行约减,降低了直方图相似度计算的复杂度.利用H-EMD模型计算形状上下文特征间的相似度,进而对基于形状上下文形状匹配方法进行改进.通过对不同的数据仿真结果进行比较,H-EMD模型在匹配时间上更具优势,同时,改进的形状匹配方法能有效实现形状识别和检索.

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