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Optimum Quality Control Algorithm for Versatile Video Coding
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AI
DOI：10.1109/TBC.2022.3147103.png)
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摘要
En 中文
We propose a quality control method that replaces rate control in video coding and achieves quality control with the minimum bit rate. First, based on the rate-distortion model, we establish a Karush-Kuhn-Tucker equation considering the convergent properties of variational inequalities to solve the continuous convex problem. Second, combined with the rate-quality (R-Q) model, the proposed algorithm is implemented under versatile video coding (VVC) to obtain the optimal closed-form solution for the quantization parameters of a coding unit through the Lagrange multiplier method. Experiments reveal that our algorithm can achieve stable video coding quality while guaranteeing coding performance, achieving high quality control accuracy with constant quality.
Keyword:
Encoding
Bit rate
Video coding
Quality control
Proposals
Distortion
Streaming media
Quality control
rate control
rate-quality
VVC
constant quality
期刊
IF:
4.8
论文数:
2.1K
被引数:
3.0K
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