One rate control method of video for consistent picture quality
一种获得均匀图像质量的视频码率控制方法

In video coding, the purpose of rate control is to improve picture quality while subject to the bandwidth constraint, The consistent visual quality is complied with HVS, thus it is a desired goal of rate control. A new rate control scheme using linear source model as content complexity measure was proposed. This method smoothed the quantized parameter intrinsically, which made the distribution of quantized parameters and mean-squared errors more concentrated among macro blocks, so more consistent visual quality could be got. Simulation results show that the proposed method can improve PSNR as well as subjective visual quality.