UCVC: A Unified Contextual Video Compression Framework with Joint P-frame and B-frame Coding

Jiayu Yang, Wei Jiang, Yongqi Zhai, Chunhui Yang, Ronggang Wang
2/2/2024
cs.CV

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Abstract

This paper presents a learned video compression method in response to video compression track of the 6th Challenge on Learned Image Compression (CLIC), at DCC 2024.Specifically, we propose a unified contextual video compression framework (UCVC) for joint P-frame and B-frame coding. Each non-intra frame refers to two neighboring decoded frames, which can be either both from the past for P-frame compression, or one from the past and one from the future for B-frame compression. In training stage, the model parameters are jointly optimized with both P-frames and B-frames. Benefiting from the designs, the framework can support both P-frame and B-frame coding and achieve comparable compression efficiency with that specifically designed for P-frame or B-frame.As for challenge submission, we report the optimal compression efficiency by selecting appropriate frame types for each test sequence. Our team name is PKUSZ-LVC.

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Cite this paper

@article{yang2024ucvc,
  title  = {UCVC: A Unified Contextual Video Compression Framework with Joint P-frame and B-frame Coding},
  author = {Jiayu Yang and Wei Jiang and Yongqi Zhai and Chunhui Yang and Ronggang Wang},
  year   = {2024},
  eprint = {2402.01289},
  archivePrefix = {arXiv},
  url    = {http://arxiv.org/abs/2402.01289v1}
}

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