bi-directionally predictive coded frame
B帧为双向预测编码帧(bi-directionally predictive coded frame),采用双向运动赔偿预测和误差的DCT编码,由前面和后面的I或P帧进行预测,所以B帧的压缩效率无上。
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短语
预测编码帧
predictively coded frame
双向预测编码帧
bidirectionally predictively coded frame
双向预测编码图帧
Bidirectionally predicted picture