TY - GEN
T1 - The Complexity Optimization of Dependent Quantization in VVC by Delaying Starting Point
AU - Feng, Shixuan
AU - Wang, Yifan
AU - Wang, Luge
AU - Yang, Fuzheng
AU - Wan, Shuai
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - Compared with the video compression standard High Efficiency Video Coding (HEVC), the latest standard Versatile Video Coding (VVC) has achieved great improvement in coding efficiency due to the application of more sophisticated coding tools, which also results in high coding complexity. In this paper, to reduce the computational complexity of dependent quantization in VVC, an optimization method based on theoretical analysis of rate-distortion performance and statistical low-complexity model establishment is proposed to delay the starting point of the quantized path. Experimental results demonstrate that the proposed method can postpone the starting point to a position closer to the last non-zero quantized coefficient, reducing 3.57% encoding time, with a 0.42% increase in Bjntegaard delta bit-rate (BD-BR) compared with VVenC 1.0.0 under medium preset.
AB - Compared with the video compression standard High Efficiency Video Coding (HEVC), the latest standard Versatile Video Coding (VVC) has achieved great improvement in coding efficiency due to the application of more sophisticated coding tools, which also results in high coding complexity. In this paper, to reduce the computational complexity of dependent quantization in VVC, an optimization method based on theoretical analysis of rate-distortion performance and statistical low-complexity model establishment is proposed to delay the starting point of the quantized path. Experimental results demonstrate that the proposed method can postpone the starting point to a position closer to the last non-zero quantized coefficient, reducing 3.57% encoding time, with a 0.42% increase in Bjntegaard delta bit-rate (BD-BR) compared with VVenC 1.0.0 under medium preset.
KW - Complexity Optimization
KW - Dependent quantization
KW - Video Coding
KW - VVC
UR - http://www.scopus.com/inward/record.url?scp=85184851078&partnerID=8YFLogxK
U2 - 10.1109/VCIP59821.2023.10402670
DO - 10.1109/VCIP59821.2023.10402670
M3 - 会议稿件
AN - SCOPUS:85184851078
T3 - 2023 IEEE International Conference on Visual Communications and Image Processing, VCIP 2023
BT - 2023 IEEE International Conference on Visual Communications and Image Processing, VCIP 2023
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2023 IEEE International Conference on Visual Communications and Image Processing, VCIP 2023
Y2 - 4 December 2023 through 7 December 2023
ER -