The rate-distortion optimization method in H.264 can efficiently improve the performance of the coder.
率失真优化技术能够有效的提高编码器的性能。
参考来源 - 基于H.264/AVC的码率控制算法的研究In H.264, mainly use rate-distortion optimization algorithm based on the rate-distortion theory to decision different modes.
在H.264中,主要采用了基于率失真理论的率失真最优化算法来在不同的模式中进行取舍。
参考来源 - H.264帧内/帧间模式选择快速算法Extensive experimental results demonstrate that this model bears high accuracy,whose average error is around 3%,thus can be used in joint source-channel coding and end-to-end rate-distortion optimization.
该模型可以应用在信源信道联合编码及端到端的率失真优化中。
参考来源 - AWGN信道下Turbo码误比特率模型 in C·2,447,543篇论文数据,部分数据来源于NoteExpress
In rate-distortion optimization coefficients are encoded with a decreasing R-D slope, so the first coding bits are the ones having the steepest R-D slope.
率失真优化是按照率失真斜率递减的顺序编码系数位,最先编码的位具有最大的率失真斜率,每编码一位都会使失真减少最大。
With the research above, a new rate control algorithm is realized by c, which is based on the valid-bit-number coding model and the rate-distortion optimization technique.
在以上研究的基础上,用C语言实现了基于有效比特位编码模型和率失真优化技术的码率控制算法。
The full search decision method and rate distortion optimization strategy of JM8.4 code were analyzed firstly.
首先对JM 8.4程序所采用的全搜索模式决策方法的步骤及率失真优化策略进行了分析。
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