Variable block-size transforms for H.264/AVC

被引：87
|
作者：
Wien, M [1 ]
机构：
[1] RWTH Aachen Univ, Inst & Lehrstuhl Nachtichtentech, Aachen, Germany
来源：
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY | 2003年 / 13卷 / 07期
关键词：
block-based hybrid video coding; H264/AVC; integer transforms; variable block-size transforms;
D O I：
10.1109/TCSVT.2003.815380
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A concept for variable block-size transform coding is presented. It is called adaptive block-size transforms (ABT) and was proposed for coding of high resolution and interlaced video in the emerging video coding standard H.2.64/AVC. The basic idea of inter ABT is,to align the block size used for transform coding of the prediction error to the block size used for motion compensation. Intra ABT employs variable block-size prediction and transforms for encoding. With ABT, the maximum feasible signal length is exploited for transform coding. Simulation results reveal a performance increase up to 11% overall rate savings and 0.9 dB in peak signal-to-noise ratio.
引用
收藏
页码：604 / 613
页数：10
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