在这种模式中，上方像素块中的四个底部像素被垂直拷贝至经过帧内编码的宏块中。
In this mode, four bottom pixels from the block above are copied vertically into part of an intra-coded macroblock.
在这种模式中，左边像素块中的最右侧四个像素被水平拷贝至经过帧内编码的宏块中。
In this mode, four right-most pixels from the block to the left are copied horizontally into part of an intra-coded macroblock.
同时，根据率失真定理，在保证失真最小的情况下，为帧内不同的宏块选用最佳的量化系数。
Using this method, we minimize distortion subject to the target rate constraint, and ohtain formulas that indicate how to choose the quantization parameters.
在这种模式中，上方像素块中的八个底部像素被沿对角线方向拷贝至经过帧内编码的宏块中。
In this mode, eight bottom pixels from the blocks above are copied diagonally into part of an intra-coded macroblock.
针对帧内预测宏块，提出了“参考块缩放法”，在不明显增加解码复杂度的情况下，有效减少误差漂移。
And the method of reference block scaling was proposed for inter coded macroblocks, which can reduce error drift effectively without increasing decoding complexity.
针对帧内预测宏块，提出了“参考块缩放法”，在不明显增加解码复杂度的情况下，有效减少误差漂移。
And the method of reference block scaling was proposed for inter coded macroblocks, which can reduce error drift effectively without increasing decoding complexity.
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