下一代视频编码标准H.265关键技术.pdf
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标准标准、、检测与仪器检测与仪器
STANDARDTANDARD,,TESTINGEQUIPMENTTESTINGEQUIPMENT
【本文献信息】蔡晓霞,崔岩松,邓中亮,等.下一代视频编码标准关键技术[J]. 电视技术,2012 ,36(2 ).
下一代视频编码标准关键技术
蔡晓霞,崔岩松,邓中亮,常志峰
(北京邮电大学 电子工程学院,北京 100876)
【摘 要】新一代视频压缩标准(High Efficient Video Coding ,HEVC )是视频压缩领域继H.264/AVC 之后的又一重大突破,主要
面向高清电视(HDTV )以及视频编解码系统,提供从QVGA 至1 080p 以至超高清电视(7 680×4 320 )不同级别的视频应用。首
先从HEVC 基本结构出发,较全面地介绍了HEVC 在预测估计、DCT 变换、滤波补偿以及熵编码方面采用的关键技术,最后介绍
了HEVC 当前的研究热点及其最新发展方向。
【关键词】视频编码;HEVC ;四叉树编码、变换结构;环路滤波;熵编码
【中图分类号】 TP37 【文献标识码】A
Modelof Next-generationVideo Standardand Relative Key Technologies
CAI Xiaoxia, CUI Yansong, DENG Zhongliang, CHANG Zhifeng
(School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China)
【Abstract】As the successor to H.264/AVC, the latest video compression standard under development(High Efficiency Video
Coding, HEVC) targets at next-generation HDTV displays and video compression systems which provide flexible, high efficient
applications with resolutions from QVGA (320 × 240) up to 1 080p and Ultra HDTV (7 680 ×4 320). The encode architectures
and some of the key technologies used in the new model are introduced in this paper. Those key technologies involve with
prediction, transformation, in-loop filter and entropy. Besides that, the paper also reviews the latest improving issues and the
future of HEVC.
【Key words】video coding; HEVC; quadtree coding and transforming structure; in-loop filter; entropy coding
1 HEVC 背景与发展 清电视(HDTV)以及视频捕获系统的应用,提供从QVGA
至1 080p 以至超高清电视(7 680×4 320)不同级别的视
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