选用码率失真最优的宏块模式。
选用需要比特最少的宏块模式。
提出一种H . 264编码中帧间模式选择的算法，利用帧与帧之间的时间相关性并提出通过模式识别中统计分类的方法对帧间宏块模式进行分类。
In this paper, we have proposed an inter-mode selection algorithm for H. 264, which is based on the time-relativity of the neighboring frames and adopts the idea of statistic classification.
随后，通过拉格朗日优化算法，找到了平衡编码量和失真大小的宏块的最佳编码模式。
Then we calculate the Lagrangian cost to balance the rate and distortion, by which we can find the best encoding mode.
“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.
算法优化了宏块帧间模式选择算法的流程。
The algorithm optimizes the flow of inter mode of macro-block decision algorithm.
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.
提出了一种快速帧间模式选择算法，通过利用宏块的运动特性，有效跳过不必要的帧间预测模式。
The proposed algorithm can effectively skip unnecessary inter-prediction modes by using the properties of motion of the macroblock.
为了得到最优模式，H . 264采用了率失真优化(rdo)技术计算宏块的每种模式的代价，但是这样增加了计算复杂度。
In order to gain the optimal mode, H. 264 adopts Rate Distortion Optimization (RDO) technique to compute the cost of every mode for each macroblock, but it increases computational complexity.
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.
在编码模式期间，接收数据块流并为每个宏块产生(12)至少一个运动矢量和至少一个运动补偿预测值。
During an encoding mode, a stream of data blocks is received and at least one motion vector and one motion compensation prediction value for each macro-block are generated.
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.
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.
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