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-λ 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.
|Title of host publication||ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings|
|Number of pages||5|
|Publication status||Published - May 2020|
Bibliographical noteThis work was supported by the Natural Science Foundation of China under Grant 61871342, Grant 61772344, and Grant 61672443 and in part by the Hong Kong RGC General Research Funds under Grant 9042820 (CityU 11219019), Grant 9042489 (CityU 11206317), Grant 9042322 (CityU 11200116), Grant 9048123 (CityU 21211518) and start up project of Chongqing University (02160011044118)
- Rate control
- Rate-distortion model
- Video coding