By study of the existing extraction and representation algorithm of motion information, a practicality module is designed and implemented mainly on global and local motion feature extraction.
通过对运动特征提取算法进行研究，设计并实现了一个实用的全局运动特征和局部运动特征提取模块。
The local motion vector of the block was determined by feature point matching.
通过特征点匹配，求其局部运动矢量；
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