Affine motion prediction based on translational motion vectors

被引：44
|
作者：
Kordasiewicz, Roman C.
Gallant, Michael D.
Shirani, Shahram
机构：
[1] McMaster Univ, Dept Elect & Comp Engn, Hamilton, ON L8S 4K1, Canada
[2] LSI Log Corp, Waterloo, ON N2V 1C5, Canada
来源：
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY | 2007年 / 17卷 / 10期
关键词：
affine motion; motion compensation; motion estimation; prediction; video compression;
D O I：
10.1109/TCSVT.2007.903777
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：
In all of the video coding standards like H.26X and MPEG-X, much of the compression comes from motion compensated prediction (MCP). Translational motion vectors (MVs) poorly model complex motion and thus coders using polynomial or affine MVs have been proposed in the past. In this paper, we demonstrate a novel affine predictor stage which can be easily incorporated into current codecs greatly increasing MCP quality. If used passively to generate the final prediction, gains of up to 0.7 and 1.6 dB were easily realized for "mobile" and "flower garden" video sequences, respectively. In addition, when the translational MVs are refined, gains of up to 0.98 and 1.88 dB for "mobile" and "flower garden" video sequences were respectively realized.
引用
收藏
页码：1388 / 1394
页数：7
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