多功能视频编码(VVC)的到来

G. Sullivan
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引用次数: 12

摘要

在第一版高效视频编码(HEVC)标准开发7年后,视频编码领域的主要国际组织已经完成了下一代标准,称为多功能视频编码(VVC)。VVC标准,正式命名为ITU-T H.266和ISO/IEC 23090-3,相对于其前身,承诺在视频压缩方面有重大改进。它可以提供大约两倍的编码效率——也就是说,它可以用于将视频内容编码到相同的视觉质量水平,而使用的比特数比HEVC少50%,因此使用的比特数比H.264/AVC(当今最广泛使用的格式)少75%。因此,它可以减轻全球网络的负担,目前视频占所有互联网流量的80%左右。此外,VVC在其语法中增强了功能,以支持前所未有的应用广度,赋予其标题中使用的“多功能性”一词以意义。VVC于2020年7月完成,已开始在实际应用中出现,并正在进行测试以表征其主观性能。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Versatile Video Coding (VVC) Arrives
Seven years after the development of the first version of the High Efficiency Video Coding (HEVC) standard, the major international organizations in the world of video coding have completed the next major generation, called Versatile Video Coding (VVC). The VVC standard, formally designated as ITU-T H.266 and ISO/IEC 23090-3, promises a major improvement in video compression relative to its predecessors. It can offer roughly double the coding efficiency – i.e., it can be used to encode video content to the same level of visual quality while using about 50% fewer bits than HEVC and thus using about 75% fewer bits than H.264/AVC, today’s most widely used format. Thus it can ease the burden on worldwide networks, where video now comprises about 80% of all internet traffic. Moreover, VVC has enhanced features in its syntax for supporting an unprecedented breadth of applications, giving meaning to the word "versatility" used in its title. Completed in July 2020, VVC has begun to emerge in practical implementations and is undergoing testing to characterize its subjective performance.
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