通常码率控制算法使用一定的率失真模型来决策量化参数从而控制码率。
Generally, the rate distortion model is employed to compute quantization parameter for the controlling bit rate.
实验结果表明该模型优于带有死区的塔式格型矢量量化中的比特率失真模型。
Experimental results illustrate this model is superior to the rate-distortion model in pyramidal dead zone lattice vector quantization.
视频通信中的基于拉格朗日乘子法的率失真模型的两个基本组成部分是失真度和比特率。
The two basic component of rate-distortion model based on Lagrange multiplier in video coding are distortion and rate.
在这种新率失真模型中，纹理因子与误差均值因子的联合加权值被用作新模型中的率失真因子。
In the new model, the joint weighted value of texture and mean-error factors is calculated as the distortion metric.
算法对传统二次率失真模型进行了改进，并结合人眼的立体视觉特性，提出了新的码率控制策略。
The conventional quadric rate-distortion model was improved and a new one was introduced by incorporating the human visual system (HVS) characteristics.
此算法基于多分辨率运动估计方案和新率失真模型进行预测模式快速选择，并结合带提前退出准则的快速搜索算法来加速搜索过程。
The multi-resolution motion estimation scheme and an efficient rate-distortion model are adopted with early termination rules to accelerate the search process.
大量实验结果表明：改进的算法实现了模型参数的预测精确，提高了率失真优化性能。
Extensive experimental show that proposed scheme significantly improves model parameters prediction accuracy and enhances rate distortion performance.
该方法基于率失真曲线的精确理论模型，对小波分解后的不同子带提供最优的动态比特分配从而实现了小波系数的自适应量化编码，最后还实现了码率控制。
It provides optimal dynamic bit allocation for sub-bands of DWT and realizes adaptive quantization for wavelet coefficients. At last, it provides exact rate control for the coder.
在此模型中，把错误概率和检测率作为失真约束，运用博弈论的方法分析了博弈双方在不同失真约束条件下的隐写容量。
Then the author give a proof of the hiding capacity under the condition of no attack, and discuss the characteristic of the model.
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。
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.
FGS视频率失真和平均丢包率的关系模型，最优FEC数据分配算法的设计。
A relationship model of FGS video rate-distortion and average packet loss ratio was established, the optimal FEC data allocation algorithm was designed.
FGS视频率失真和平均丢包率的关系模型，最优FEC数据分配算法的设计。
A relationship model of FGS video rate-distortion and average packet loss ratio was established, the optimal FEC data allocation algorithm was designed.
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