面向AVS3标准的8K超高清视频编解码加速技术研究

Currently, various video applications have entered many aspects of national life and industrial production. In order to further improve video compression efficiency, compete for the leading position of international video coding standard, and promote the development of related industries, China's AVS standard working group is accelerating the formulation of a new generation coding standard (AVS3) for 8K-UHD video, and has completed the first stage. However, the coding complexity of AVS3 is a bottleneck restricting the promotion of AVS3. Based on the deep learning and basic theory of video coding, this project will study the fast partitioning algorithm of coding unit and fast estimation algorithm of rate-distortion cost, study the hybrid parallel coding algorithm and load scheduling algorithm on high-performance computing platform, and study the low-complexity equivalent decoding algorithms to solve the key problems of real-time coding for 8K video with AVS3. Based on the above research, we also plan to develop the end-to-end 8K-UHD real-time coding platform to testify the effectiveness of our proposed theories, methods and techniques. The outcomes of this project will provide important technical support for the development of 8K-UHD video industry and the promotion of AVS3 coding standard.

当前，各种视频应用已经进入国民生活和工业生产的诸多方面。为进一步提升视频压缩效率，争夺国际视频编码标准的领先地位，并推动相关产业的发展，我国AVS标准工作组正在加速制定面向8K超高清视频的新一代编码标准AVS3，并已完成第一阶段的制定工作。但新一代标准大幅提升的编解码复杂度成为制约标准推广的瓶颈问题。本项目基于深度学习和视频编码基础理论，研究适用于AVS3的编码单元快速划分算法和率失真代价估计算法，研究面向高性能计算平台的混合框架并行算法和负载调度算法，以及低复杂度等价解码算法，解决AVS3高质量8K超高清视频实时编解码的关键问题。本项目还将基于上述研究，开发端到端的8K超高清视频实时编解码验证平台，验证所提出的加速理论、方法和技术在实际环境中的有效性，为8K超高清视频产业的发展和AVS3编码标准的推广提供重要的技术支撑。

当前，各种视频应用已经进入国民生活和工业生产的诸多方面。为进一步提升视频压缩效率，争夺国际视频编码标准的领先地位，并推动相关产业的发展，我国AVS标准工作组率先制定了面向8K超高清视频的新一代编码标准AVS3。但新一代标准大幅提升的编解码复杂度成为制约标准推广的瓶颈问题。本项目基于视频编码基础及并行计算理论，研究适用于AVS3的编码单元快速划分算法，研究面向高性能计算平台的混合框架并行算法和负载调度算法，以及低复杂度等价解码算法，解决了AVS3高质量8K超高清视频实时编解码的关键问题。本项目基于上述研究成果，开发了端到端的8K超高清视频实时编解码验证平台，验证所提出的加速理论、方法和技术在实际环境中的有效性。并将上述验证平台开源，贡献了AVS3编码器(uavs3e)和解码器(uavs3d)两个开源项目。为8K超高清视频产业的发展和AVS3编码标准的推广做出重要贡献。