In hardware design of MPEG-2 to H.264 transcoder, MPEG-2 motion vector (MV) is often reused as search center to reduce the search range for H.264 motion estimation (ME) module. But MPEG-2 MV is not always accuratesearch center. The common-used comparison algorithm for motion vector predictor (MVP) is hardly implemented in hardware. In this paper, we propose a MV prediction algorithm for hardware design based on smoothness of MPEG-2 MV field. Experiment results show that the proposed MV prediction method with a small search range can approach the performance of full search algorithm with a large search range. Using the proposed algorithm, the motion prediction accuracy is significantly improved compared with the method only usingMPEG-2MV, especially in sequence with fast motion and complicate background.


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    Titel :

    A Hardware-Oriented High Precision Motion Vector Prediction Scheme for MPEG-2 to H.264 Transcoding


    Beteiligte:
    Wei, Xianghui (Autor:in) / Tang, Wenming (Autor:in) / Tian, Guifen (Autor:in) / Ikenaga, Takeshi (Autor:in) / Goto, Satoshi (Autor:in)


    Erscheinungsdatum :

    01.05.2008


    Format / Umfang :

    274643 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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