AV2编码标准比AV1压缩效率提升三成，适合下一代流媒体。
Video Quality Evaluation Methodology and Result of AV2 Compression Performance
- 采用自适应流媒体配置与用户生成内容评估新方法
- 在随机访问下PSNR-YUV和VMAF分别降低29.81%和33.79%的码率
- 适用于追求高压缩效率的视频流媒体开发者
联盟开放媒体（AOMedia）开发了AV2视频编码标准，旨在取代AV1，以在多种媒体应用中实现显著的压缩效率提升。本文详述了AV2通用测试条件（CTC）中定义的质量与性能评估方法，引入了基于凸包的自适应流媒体配置、用户生成内容（UGC）以及扩展色度格式等新内容。我们展示了AV2（v13.0）相对于AV1基线的编码增益。实验结果表明，在随机访问配置下，AV2在PSNR-YUV和VMAF指标上分别实现了29.81%和33.79%的贝约恩特加德码率（BD-rate）降低，验证了其在下一代流媒体应用中的高效性。
原文摘要 · Abstract (English)
The Alliance for Open Media (AOMedia) has developed the AV2 video coding standard to supersede AV1, aiming for substantial compression efficiency gains across diverse media applications. This paper details the quality and performance evaluation methodology defined in the AV2 Common Test Conditions (CTC), which introduces new evaluation methods and content, including convex-hull-based adaptive streaming (AS) configuration, user-generated content (UGC), and extended chroma formats. We present the coding gains of the AV2 (v13.0) against the AV1 baseline. Experimental results show that AV2 achieves significant Bjøntegaard-Delta Rate (BD-rate) reductions of 29.81\% and 33.79\% for PSNR-YUV and VMAF, respectively, under random access configuration, validating the efficiency of AV2 for next-generation streaming applications.
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