Frame layer rate control algorithm for H.264/AVC
一种面向H.264/AVC的帧层码率控制算法

The cause of great quality variation of H.264/AVC was analyzed.In this paper,we proposed a new frame layer rate control scheme based on feedback method(Rate Control Based on Feedback,RCBF).The new scheme allocates bits based on the scene content complexity if the buffer is not overflow and underflow,which lessens the quality variation caused by that the bits allocation to each frame is not in proportion to its scene content complexity.The paper also adopted the feedback method to adjust the bits allocated,making the frame layer rate control more reasonable and accurate.Simulation results show that RCBF scheme PSNR variation is smaller than that of JVT-G012 in JM10.2.Moreover both the average PSNR and control accuracy are improved.