A Comprehensive Video Codec Comparison
A Comprehensive Video Codec Comparison
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DOI：
10.1017/atsip.2019.23
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发表时间：
2019
影响因子：
3.2
通讯作者：
Thorsten Laude;Y. G. Adhisantoso;Jan Voges;Marco Munderloh;J. Ostermann
中科院分区：
文献类型：
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作者：
Thorsten Laude;Y. G. Adhisantoso;Jan Voges;Marco Munderloh;J. Ostermann
在本文中，我们比较了视频编解码器AV 1（版本1.0.0-2242从2019年8月），HEVC（HM和x265）、AVC（x264）、基于HEVC的探索软件JEM和VVC（x265）。（HEVC的后继者）测试模型VTM（2019年2月起的4.0版）在两种公平和平衡的配置下：所有帧内用于评估帧内编码和最大编码效率，所有编解码器都被调整为最佳编码效率设置。VTM在两种配置中实现了最高的编码效率，其次是JEM和AV 1。x264和x265实现了最差的编码效率，即使在为最高编码效率预设的安慰剂中也是如此。与之前的版本相比，AV 1在编码效率方面获得了很大的提升，现在比HM高出24%的BD速率增益。VTM在BD费率方面比AV 1增加5%。通过报告JVET和AOM测试序列的单独数字，可以确保测试序列中不存在偏倚。当仅比较帧内编码工具时，观察到对于线性增加的编码效率，复杂度呈指数增加。
In this paper, we compare the video codecs AV1 (version 1.0.0-2242 from August 2019), HEVC (HM and x265), AVC (x264), the exploration software JEM which is based on HEVC, and the VVC (successor of HEVC) test model VTM (version 4.0 from February 2019) under two fair and balanced configurations: All Intra for the assessment of intra coding and Maximum Coding Efficiency with all codecs being tuned for their best coding efficiency settings. VTM achieves the highest coding efficiency in both configurations, followed by JEM and AV1. The worst coding efficiency is achieved by x264 and x265, even in the placebo preset for highest coding efficiency. AV1 gained a lot in terms of coding efficiency compared to previous versions and now outperforms HM by 24% BD-Rate gains. VTM gains 5% over AV1 in terms of BD-Rates. By reporting separate numbers for JVET and AOM test sequences, it is ensured that no bias in the test sequences exists. When comparing only intra coding tools, it is observed that the complexity increases exponentially for linearly increasing coding efficiency.