A survey of rate control in HEVC and SHVC video encoding
Amit Anand Ramanand, Ishfaq Ahmad, Viswanathan Swaminathan · 2017
Rate control in video coding has proven to be a prolific research area because it is the heart of video coding. This paper presents an overview of rate control techniques in HEVC. The paper introduces and reviews some of the rate control algorithms for prior video coding standards. Next, the paper presents the basic features of HEVC that drive the need for new rate control techniques. The paper also describes R-D model based taxonomy of various algorithms including the classification criteria. Another classification categorizes the rate control algorithms according to their basic principle and mechanisms. The paper includes a section giving an overview of the scalable extension of HEVC namely SHVC while highlighting some of the possible challenges in SHVC rate control design. Finally, the paper identifies some of the conspicuous unresolved research issues in HEVC rate control and outlines possible future directions.