H.264 adopts new coding tools such as variable block size, quarter-pixel-accuracy motion estimation/compensation, multiple reference frames, loop filter, etc. The adoption of these tools enables a macroblock to have more information compared with previous standards. In H.264 each macroblock can have up to sixteen motion vectors, four reference frames, and a mode of the macroblock, all of which can be used for temporal error concealment. The H.264 error concealment in the informative part, however, uses a similar method to prior coding standards that consider only motion vectors of macroblocks adjacent to the lost macroblock. In this paper, we propose an effective temporal error concealment algorithm for H.264-coded video. It uses not only motion vectors and reference frames but the modes of macroblocks adjacent to the lost macroblock as well. Depending on the modes of neighboring macroblocks, each lost macroblock is concealed on the basis of different block sizes. Simulation results show the proposed method yields better video quality than conventional approaches.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    A new temporal error concealment method for H.264 using adaptive block sizes


    Beteiligte:
    Donghyung Kim, (Autor:in) / Siyoung Yang, (Autor:in) / Jechang Jeong, (Autor:in)


    Erscheinungsdatum :

    2005-01-01


    Format / Umfang :

    428021 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    A New Temporal Error Concealment Method for H.264 using Adaptive Block Sizes

    Kim, D. / Yang, S. / Jeong, J. | British Library Conference Proceedings | 2005


    Spatio-temporal video error concealment using priority-ranked region-matching

    Yan Chen, / Xiaoyan Sun, / Feng Wu, et al. | IEEE | 2005


    Spatio-temporal Video Error Concealment using Priority-ranked Region-matching

    Chen, Y. / Sun, X. / Wu, F. et al. | British Library Conference Proceedings | 2005


    Adaptive Motion Vector Retrieval Schemes for H.264 Error Concealment

    Wang, Lei / Wang, Jun / Goto, Satoshi et al. | IEEE | 2008


    Error Concealment for Motion JPEG2000

    Atzori, L. / Bilgin, A. / Marcellin, M. W. | British Library Conference Proceedings | 2005