Prioritized reference decision for efficient motion vector coding

Dajiang Zhou*, Jinjia Zhou, Satoshi Goto

*この研究の対応する著者

研究成果: Conference contribution

抄録

In the latest video coding frameworks, efficiency of motion vector (MV) coding is becoming increasingly important because of the growing bit rate portion of motion information. In this paper, we present a prioritized reference decision scheme for MV coding based on the H.264/AVC framework. This scheme makes use of a boolean indicator coded into the modified code words of mb type and sub mb type, so as to designate whether the conventional median prediction or an alternative reference decision method is to be used. If the latter is indicated, a validation function is applied to a prioritized list of neighboring MVs, so that the minimum-cost MV difference (MVD) is likely to be generated using multiple reference MVs, with no extra overhead. Experimental result shows the proposed scheme achieves considerable bit rate reduction on MVDs, when compared with the conventional median prediction method. It also achieves a better and much stabler performance than the state-of-the-art MBP-based MV coding. Meanwhile, the harmful feedback issue of MBP is prevented in the proposed scheme.

本文言語English
ホスト出版物のタイトルProceedings - IEEE International Symposium on Circuits and Systems
ページ1649-1652
ページ数4
DOI
出版ステータスPublished - 2009
イベント2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009 - Taipei
継続期間: 2009 5 242009 5 27

Other

Other2009 IEEE International Symposium on Circuits and Systems, ISCAS 2009
CityTaipei
Period09/5/2409/5/27

ASJC Scopus subject areas

  • 電子工学および電気工学

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