A block type decision algorithm for H.264/AVC intra prediction based on entropy feature

Guifen Tian, Tianruo Zhang, Xianghui Wei, Satoshi Goto

研究成果: Conference contribution

7 引用 (Scopus)

抜粋

Rate Distortion Optimization (RDO) based spatial intra prediction is an important new feature in H.264/AVC. It encodes each MB with variable block sizes and variable coding modes. Thus, drastically increased computation complexity is involved. This paper proposes an efficient block type decision algorithm. Entropy feature of each MB is extracted before intra coding. Based on this feature, proposed algorithm can decide the best block size for each MB instead of exhaustively examining all block sizes. Sufficient experiment results show that proposed algorithm achieves about 95% decision accuracy with PSNR loss less than 0.004dB; bit-rate increase is negligible and time reduction is 22% to 33%, as target frame sizes changing from QCIF to HDTV (1080p).

元の言語English
ホスト出版物のタイトルIEEE Asia-Pacific Conference on Circuits and Systems, Proceedings, APCCAS
ページ1348-1351
ページ数4
DOI
出版物ステータスPublished - 2008
イベントAPCCAS 2008 - 2008 IEEE Asia Pacific Conference on Circuits and Systems - Macao
継続期間: 2008 11 302008 12 3

Other

OtherAPCCAS 2008 - 2008 IEEE Asia Pacific Conference on Circuits and Systems
Macao
期間08/11/3008/12/3

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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  • これを引用

    Tian, G., Zhang, T., Wei, X., & Goto, S. (2008). A block type decision algorithm for H.264/AVC intra prediction based on entropy feature. : IEEE Asia-Pacific Conference on Circuits and Systems, Proceedings, APCCAS (pp. 1348-1351). [4746278] https://doi.org/10.1109/APCCAS.2008.4746278