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RATE CONTROL FOR VERSATILE VIDEO CODING

Yiming Li, Zizheng Liu, Zhenzhong Chen, Shan Liu

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    Length: 09:56
28 Oct 2020

Rate control plays an important role in practical video coding. In this paper, we present a rate control method for Versatile Video Coding (VVC). We conduct some statistical analysis to investigate the influence of the skip block upon the rate-distortion parameter estimation and quality dependency among frames. Based on the analysis, we propose the rate-distortion parameter updating strategy and establish a quality dependency factor based frame-level bit allocation scheme. Experimental results show that the proposed method can achieve up to 7.31%/5.44% BD-rate improvements in Low-Delay/Random-Access configuration upon previous rate control method in VVC respectively. The presented rate control algorithm has already been adopted into VVC VTM platform by Joint Video Experts Team (JVET).

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