Overview of the Scalable Video Coding extension of the H.264/AVC standard
Overview of the Scalable Video Coding extension of the H.264/AVC standard
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DOI：
10.1109/tcsvt.2007.905532
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发表时间：
2007-09-01
影响因子：
8.4
通讯作者：
Wiegand, Thomas
中科院分区：
文献类型：
--
作者：
Schwarz, Heiko;Marpe, Detlev;Wiegand, Thomas
随着H.264/AVC视频编码标准的引入，最近在视频压缩功能中证明了重大改进。 ITU-T VCEG和ISO/IEC MPEG的联合视频团队现在还标准化了H.264/AVC标准的可扩展视频编码（SVC）扩展。 SVC使部分位流的传输和解码能够提供具有较低时间或空间分辨率或降低忠诚度的视频服务，同时保留相对于部分位流的速率高的重建质量。因此，SVC提供了功能，例如在有损耗的传输环境中优美的退化以及比特率，格式和功率适应。这些功能为传输和存储应用提供了增强。相对于先前的视频编码标准的可扩展曲线，SVC在编码效率方面取得了显着提高，并提高了支持的可伸缩性。本文概述了将H.264/AVC扩展到SVC的基本概念。此外，详细描述了提供时间，空间和质量可伸缩性的基本工具，并就其效率和复杂性进行了实验分析。
With the introduction of the H.264/AVC video coding standard, significant improvements have recently been demonstrated in video compression capability. The Joint Video Team of the ITU-T VCEG and the ISO/IEC MPEG has now also standardized a Scalable Video Coding (SVC) extension of the H.264/AVC standard. SVC enables the transmission and decoding of partial bit streams to provide video services with lower temporal or spatial resolutions or reduced fidelity while retaining a reconstruction quality that is high relative to the rate of the partial bit streams. Hence, SVC provides functionalities such as graceful degradation in lossy transmission environments as well as bit rate, format, and power adaptation. These functionalities provide enhancements to transmission and storage applications. SVC has achieved significant improvements in coding efficiency with an increased degree of supported scalability relative to the scalable profiles of prior video coding standards. This paper provides an overview of the basic concepts for extending H.264/AVC towards SVC. Moreover, the basic tools for providing temporal, spatial, and quality scalability are described in detail and experimentally analyzed regarding their efficiency and complexity.