Intra frame rate control for versatile video coding with quadratic rate-distortion modelling

Chen，Yi1; Kwong，Sam1; Zhou，Mingliang2; Wang，Shiqi1; Zhu，Guopu3; Wang，Yi4,5

10.1109/ICASSP40776.2020.9054633

2020-05-01

1520-6149

978-1-5090-6632-2

ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings

2020-May

4422-4426

4-8 May 2020

Barcelona, Spain

With numerous coding tools adopted in the forthcoming Versatile Video Coding (VVC) standard, much less work has been dedicated to study the corresponding Rate-Distortion (R-D) characteristics. This paper proposes a new quadratic R-D model for Versatile Video Coding. In particular, based on the proposed model, a new R-γ relationship is derived and used for frame level rate control. The rate control algorithm is implemented on VTM 2.0 platform for intra coding scenarios. Compared to the default rate control algorithm in VTM 2.0, experimental results show that proposed rate control algorithm can achieve 0.77% BD-BR reduction with similar control accuracy.

Rate control Rate-distortion model Video coding

其他

英语

EI

20203909230077

Signal distortion ; Video signal processing ; Electric distortion

Electricity: Basic Concepts and Phenomena:701.1 ; Information Theory and Signal Processing:716.1 ; Television Systems and Equipment:716.4

2-s2.0-85091290914

Scopus

1.Department of Computer Science,City University of Hong Kong,Kowloon,Hong Kong
2.School of Computer Science,Chongqing University,Chongqing,China
3.Shenzhen Institutes of Advanced Technology,Chinese Academy of Sciences,Shenzhen,China
4.SUSTech Institute of Future Networks,Southern University of Science and Technology,Shenzhen,China
5.Pengcheng Laboratory,Shenzhen,China

Chen，Yi,Kwong，Sam,Zhou，Mingliang,et al. Intra frame rate control for versatile video coding with quadratic rate-distortion modelling[C],2020:4422-4426.