An efficient fast mode decision algorithm for H.264/AVC intra/inter predictions

B. Zhan, B. Hou, R. Sotudeh

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

    7 Citations (Scopus)
    48 Downloads (Pure)


    H.264/AVC is the newest video coding standard, which outperforms the former standards in video coding efficiency in terms of improved video quality and decreased bitrate. Variable block size based mode decision (MD) with rate distortion optimization (RDO) is one of the most impressive new techniques employed in H.264/AVC. However, the improvement on performance is achieved at the expense of significantly increased computational complexity, which is a key challenge for real-time applications. An efficient fast mode decision algorithm is then proposed in this paper. By exploiting the correlation between macroblocks and the statistical characteristics of sub-macroblock in MD, the video encoding time can be reduced 52.19% on average. Furthermore, the motion speed based adjustment scheme was introduced to minimize the degradation of performance
    Original languageEnglish
    Title of host publicationIEEE Int. Conf. on Acoustics, Speech and Signal Processing (ICASSP 2008)
    PublisherInstitute of Electrical and Electronics Engineers (IEEE)
    ISBN (Electronic) 978-1-4244-1484-0
    ISBN (Print)978-1-4244-1483-3
    Publication statusPublished - 2008


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