On macroblock partition for motion compensation

被引：32

作者：

Hung, Edson M. ^{[1
]}

De Queiroz, Ricardo L. ^{[1
]}

Mukherjee, Debargha ^{[2
]}

机构：

[1] Univ Brasilia, Brasilia, DF, Brazil

[2] Hewlett Packard Labs, Palo Alto, CA USA

来源：

2006 IEEE INTERNATIONAL CONFERENCE ON IMAGE PROCESSING, ICIP 2006, PROCEEDINGS | 2006年

关键词：

quadtrees; wedges; motion compensation;

D O I：

10.1109/ICIP.2006.312686

中图分类号：

TP18 [人工智能理论];

学科分类号：

081104 ; 0812 ; 0835 ; 1405 ;

摘要：

In the H.264/AVC video coding standard, motion compensation can be performed by partitioning macroblocks into square or rectangular sub-macroblocks in a quadtree decomposition. This paper studies a motion compensation method using wedges, i.e. partitioning macroblocks or submacroblocks into two regions by an arbitrary line segment. This technique allows the shapes of the divided regions to better match the boundaries between moving objects. However, there are a large number of ways to slice a block and searching exhaustively over all of them would be an extremely computer-intensive task. Thus, we propose a fast algorithm which detects the predominant edge orientations within a block in order to pre-select candidate wedge lines. Finally a comparison among macroblock partition methods is performed, which points to the higher performance of the wedge partition method.

引用

页码：1697 / +

页数：2