For very low bit-rate video compression, wavelet based approaches suffer the ghost effect caused by larger temporal distortions. We propose an innovative temporal-domain wavelet filtering scheme called sub-grouping transformation (SGT), which divides wavelet coefficients in the temporal direction into sub-groups and applies the temporal wavelet transform to individual sub-groups. By splitting high motion coefficient arrays into smoother sub-groups, the proposed algorithm can achieve high compression ratio and reduce the ghost effect at the same time.


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    Titel :

    An innovative temporal wavelet filtering scheme for video coding


    Beteiligte:
    Zhigang Gao, (Autor:in) / Zheng, Y.F. (Autor:in)


    Erscheinungsdatum :

    01.01.2005


    Format / Umfang :

    210236 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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