同时，论文提出的码率控制算法还对宏块层的率失真优化过程做了改进，根据每个宏块的预测目标比特数来调整率失真优化的拉格朗日系数，使帧层码率控制效果更优。

At the same time, this paper also improves the process of RDO in the macroblock layer. Based on the prediction bits of the macroblock, the Lagrange coefficient has been modified adaptively.

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本文用待定系数法证明拉格朗日定理与柯西定理。

In this paper, we present the proofs of Lagrange Theory and Cauchy Theory. By this method we may determine coefficient.

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本文针对带有间断系数的三维椭圆问题，讨论任意四面体剖分下的二次拉格朗日有限元方程的代数多重网格法。

In this paper, we consider a quadratic Lagrangian finite element equation arising from discretizations of 3d elliptic problem with jump coefficients under any tetrahedral partition.

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