JOINT BLOCK MOTION ESTIMATION IN H.264/AVC

被引：0
|
作者：
Panusopone, Krit [1 ]
Kim, Jae Hoon [1 ]
Wang, Limin [1 ]
机构：
[1] Motorola Inc, CTO Off Home & Network Mobil, Adv Technol Dept, Schaumburg, IL 60196 USA
来源：
PCS: 2009 PICTURE CODING SYMPOSIUM | 2009年
关键词：
Motion estimation; motion vector predictor; encoder optimization; H.264/AVC;
D O I：
暂无
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：
Traditionally, block-based motion estimation (ME) searches for the best motion vector (MV) for one block at a time based upon a pre-defined ME cost. The ME cost is often a function of the best MV and its predictor (MVP). In H.264/AVC, MVP of a block is calculated from MVs of its neighboring blocks in the past. Therefore, the ME decision of a current block is affected by the neighboring blocks in the past, and in turn, it also affects the ME results of the neighboring blocks in the future. In this paper, we propose a joint ME process that searches for the best MVs for a group of blocks, which takes the interdependence of MVs into account. The proposed method smoothes MV fields and improves coding efficiency.
引用
收藏
页码：181 / 184
页数：4
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