Efficiency improvements for a geometric-partition-based video coder | IEEE Conference Publication | IEEE Xplore

Efficiency improvements for a geometric-partition-based video coder


Abstract:

H.264/AVC has brought an important increase in coding efficiency in comparison to previous video coding standards. One of its features is the use of macroblock partitioni...Show More

Abstract:

H.264/AVC has brought an important increase in coding efficiency in comparison to previous video coding standards. One of its features is the use of macroblock partitioning in a tree-based structure. The use of macroblock partitions based in arbitrary line segments, like wedge partitions, has been reported to increase coding gains. The main problem of these non-standard new partitions schemes is the increase in computational complexity. Thus, our work proposes improvements in this extension to the H.264/AVC standard. First, we present a motion vector prediction scheme based on directional partitions. Second, we present a method for complexity reduction based on the most frequent partitions. The results show that it is possible to still produce good coding gains with lower complexity than previous approaches.
Date of Conference: 07-10 November 2009
Date Added to IEEE Xplore: 17 February 2010
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Conference Location: Cairo, Egypt

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