The H.264 standard, jointly developed by the ITU-T and the MPEG committees, is highly efficient offering perceptually equivalent quality video at about 1/3 to 1/2 of the bitrates offered by the MPEG-2 format. These significant bandwidth savings open the market to new products and services, including HDTV services at lower bitrates. It is expected that the H.264/AVC takes over the digital video market, replacing the use of MPEG-2 in most digital video applications. The complete migration to the new video-coding algorithm takes several years given the wide scale use of MPEG-2 in the market place today. This creates an important need for transcoding technologies for converting the large volume of existent video material from the MPEG-2 into the H.264 format and vice versa. However, given the significant differences between the MPEG-2 and the H.264 encoding algorithms, the transcoding process of such systems is much more complex to other heterogeneous video transcoding processes. In this paper, we introduce and evaluate a novel fast intra-frame prediction algorithm to be used as part of a high-efficient MPEG-2 to H.264 transcoder. Our results show that the proposed algorithm is able to maintain a good picture quality while considerably reducing the number of operations to be performed.


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    Titel :

    A fast intra-frame prediction algorithm for MPEG-2/H.264 video transcoders


    Beteiligte:
    Fernandez-Escribano, G. (Autor:in) / Cuenca, P. (Autor:in) / Orozco-Barbosa, L. (Autor:in) / Garrido, A. (Autor:in)


    Erscheinungsdatum :

    01.01.2005


    Format / Umfang :

    2106043 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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