Generally, the ratedistortion model is employed to compute quantization parameter for the controlling bit rate.
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。
2
In accordance with this, a novel optimum method based on ratedistortion theory called optimal coefficient adjustment is presented.
针对这一问题，提出了一个新的基于率失真理论的优化方法，称为最优系数调整法。
3
Compared with the standard post-coding ratedistortion (PCRD) algorithm, the proposed algorithm has no spending in calculating rate-distortion slope and searching for optimum truncation points.