A Comparison of JEM and AV1 with HEVC: Coding Tools, Coding Efficiency and Complexity
A Comparison of JEM and AV1 with HEVC: Coding Tools, Coding Efficiency and Complexity
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DOI：
10.1109/pcs.2018.8456291
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发表时间：
2018-06
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通讯作者：
Thorsten Laude;Y. G. Adhisantoso;Jan Voges;Marco Munderloh;J. Ostermann
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作者：
Thorsten Laude;Y. G. Adhisantoso;Jan Voges;Marco Munderloh;J. Ostermann
标准化视频编解码器的当前技术水平是由ISO/IEC和ITU-T联合开发的高效视频编码（HEVC）。最近，下一代标准化视频编解码器的两个竞争者的开发开始了：ISO/IEC和ITU-T推进了联合探索模型（JEM）的开发，这是HEVC的可能继承者，而开放媒体联盟推动了视频编解码器AV 1。这是断言两个组，他们的编解码器实现上级编码效率超过国家的最先进的。在本文中，我们讨论了JEM和AV 1的显着特点，并评估其编码效率和计算复杂度下定义良好，平衡的测试条件。我们的主要研究结果是，JEM大大优于HM和AV 1的编码效率方面，而AV 1不能转换增加的复杂性到竞争力的编码效率方面的竞争对手，除了所有帧内配置。
The current state-of-the-art for standardized video codecs is High Efficiency Video Coding (HEVC) which was developed jointly by ISO/IEC and ITU-T. Recently, the development of two contenders for the next generation of standardized video codecs began: ISO/IEC and ITU-T advance the development of the Joint Exploration Model (JEM), a possible successor of HEVC, while the Alliance for Open Media pushes forward the video codec AV1. It is asserted by both groups that their codecs achieve superior coding efficiency over the state-of-the-art. In this paper, we discuss the distinguishing features of JEM and AV1 and evaluate their coding efficiency and computational complexity under well-defined and balanced test conditions. Our main findings are that JEM considerably outperforms HM and AV1 in terms of coding efficiency while AV1 cannot transform increased complexity into competitiveness in terms of coding efficiency with neither of the competitors except for the all-intra configuration.