The time redundancy in video sequences can be eliminated by motion estimation. Block matching is a popular motion estimation method, adopted by all video codec standards.
视频编码通过运动估计消除时间冗余信息，块匹配方法是目前所有视频编码标准采用的运动估计方法。
The time spatial distribution evolution of tectonic deformation and seismic activities are closely related to dynamic evolution of block motion and regional tectonic stress field.
构造形变和地震活动的时空分布演化与块体活动及区域构造应力场动态演化密切相关。
And a time sequence of motion orientation for each block is generated over a sliding time window. Then accumulation and main motion orientation are computed according to the sequence.
采用滑动时间窗口生成块运动方向时间序列，在此时间序列的基础上计算块的累积量和主运动方向。
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