...间窗口的选择具体如下:(1)事件窗口(event window):公告日前1天至公告日后一天,即t二一1, 0, +1; (2)估计窗口(estimation window ):公告日前 150天至公告日前 21天,即to!
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估计窗口和事件窗口重合；
然而，如果跟踪窗口太小，它可以变得很难估计的运动，从这一帧画面到下一个。
However, if the tracking window is too small, it can become difficult to estimate motion from one frame to the next.
采用了基于特征窗口匹配的网格节点运动估计方法，有效地避免了块匹配法产生的块效应。
A mesh node motion estimation method based on feature window matching was presented to overcome block artifacts produced by block matching.
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