此判别法表明，相邻编码帧宏块条码率的频域互相关能够有效反映图像活动性变化的特点。
The correlation of adjacent slices bitrates in frequency domain can effectively reflect the activity of the motion pictures.
本文给出了一种基于宏块的差图像直方图法，并根据图像复杂度在编码单元之间合理分配比较率。
First of all, a macroblock-based histogram of difference is introduced, and bits are allocated rationally among coding units according to image complexities.
“自上而下”和“自下而上”宏块划分模式选择算法首先作为编码器的快速算法被提出。
The top-down and bottom-up mode selection schemes were first introduced as fast mode decision algorithms for video encoders.
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