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

Guifen Tian, Tianruo Zhang, Xianghui Wei, Satoshi Goto

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

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).

Original languageEnglish
Title of host publicationIEEE Asia-Pacific Conference on Circuits and Systems, Proceedings, APCCAS
Pages1348-1351
Number of pages4
DOIs
Publication statusPublished - 2008
EventAPCCAS 2008 - 2008 IEEE Asia Pacific Conference on Circuits and Systems - Macao
Duration: 2008 Nov 302008 Dec 3

Other

OtherAPCCAS 2008 - 2008 IEEE Asia Pacific Conference on Circuits and Systems
CityMacao
Period08/11/3008/12/3

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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