Region-based encoding techniques have been long investigated for the compression of still images and video sequences and have recently gained much popularity, as testified by the object-based nature of the MPEG-4 video coding standard. This work aims at analyzing costs and advantages of implementing such an approach by shape-adaptive wavelet transform and shape-adaptive SPIHT. The analysis of several performance measures in a number of experiments confirm the potential of wavelet-based region-based approach, and provide insight about what performance gains and losses can be expected in various operative conditions.


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    Titel :

    Costs and advantages of shape-adaptive wavelet transform for region-based image coding


    Beteiligte:
    Cagnazzo, M. (Autor:in) / Poggi, G. (Autor:in) / Verdoliva, L. (Autor:in)


    Erscheinungsdatum :

    01.01.2005


    Format / Umfang :

    186945 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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