Scalable Video Coding Shown to be State of the Art

masonchung

Scalable video coding (SVC) was developed by the Joint Video Team (JVT) of ISO/IEC MPEG &
ITU-T VCEG in a standardization project completed in October 2007. The SVC enhancement of
the AVC core design includes the specification of three scalable profiles (the Scalable Baseline,
Scalable High, and Scalable High Intra profiles). It enables the construction of SVC bitstreams that
) w8 }* h6 e8 G5 R$ r6 j7 q8 Hcontain reduced bit rate substreams. The substreams can be extracted from the complete bitstream,
% ]0 R; v8 @1 jthereby providing scalability in terms of bit rate, decoding complexity, and frame rate, spatial
' A+ T. S- O$ i# ?6 Rresolution, or quality. In typical cases, one or more of the substreams of the SVC bitstream will be
fully compatible with ordinary AVC decoders. Frame rate scalability (also known as temporal
scalability) or spatial scalability refers to the presence of a substream with a lower sampling rate
% ~$ I, }: u/ M) C# hthan the overall bitstream in terms of time or spatial resolution. Quality scalability refers to the
presence of a substream with the same sampling rate as the parent SVC stream, but having a lower
bit rate with a correspondingly lower quality.
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[ 本帖最後由 masonchung 於 2008-4-12 11:09 PM 編輯 ]

divl

Scalable Video Coding在未來網路通訊上勢必將掀起一股革命，
- u; ?% E& |; t  a9 F9 z4 W3 }許多視訊影像實驗室、研究單位無不於此衍伸發展，感謝版主分享此文件，
讓需要認識、了解此種技術的同好們可以獲得良好的資訊。