Secondly, the algorithm judges if this image frame is obscured and detects the possible shadowed area with the inter-frame predictor based on the gray mean of the image block.
利用图像子区域的灰度均值进行帧间预测，用来判断图像序列中被遮挡图像帧和可能的遮挡阴影区域；
Secondly, the algorithm judges if this image frame is obscured and detects the possible shadowed area with the inter-frame predictor based on the gray mean of the image block.
利用图像子区域的灰度均值进行帧间预测，用来判断图像序列中被遮挡图像帧和可能的遮挡阴影区域；
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