The steps are as follows: First, motion area is extracted based on high-order statistics detection method and motion information of multiple frames.
其基本思想是：首先根据多帧帧差信息，基于高阶统计检测方法提取运动区域。
First, block higher order statistics and threshold via local maximal between-cluster variance are used to get the motion detection mask.
该算法首先利用分块高阶统计算法和基于最大类间方差的阈值算法得到目标的运动区域检测模板。
In order to obtain the facial motion data from the source video, we must first carry out the detection and tracking of facial feature.
为了得到源视频的脸部运动运动数据，人脸特征检测和人脸特征跟踪是两个先决条件。
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