A new fuzzy rate control scheme for variable bit rate video applications of HEVC

In this paper a new fuzzy rate control algorithm is proposed for variable bit rate video applications of the High Efficiency Video Coding (HEVC) standard. The proposed controller considers given buffer size and target bit rate as constraints for control. In fact, it provides a variable bit rate video bit stream by controlling the quantization parameter (QP) on frame based. The QP for each frame is controlled by the fuzzy controller such that to minimize fluctuations in the visual quality of compressed video. The proposed algorithm has been implemented in the HEVC standard reference software (HM). Experimental results show that it provides an average quality, in terms of PSNR, similar to the HM rate control method for encoded video whereas having much less buffering delay.