In this paper, we propose a new wavelet-based image coding algorithm that is derived by rate-distortion (R-D) optimization. Since conventional coding schemes using the tree structure have reduced coding performance in terms of rate-distortion theory, we apply an R-D optimized embedding operation into the algorithm of the set partitioning in hierarchical trees (SPIHT). In this paper, we also describe modified set partitioning and R-D optimized list scan methods. Experimental results show improved rate-quality performance of the proposed algorithm over the previous wavelet-based image coding algorithms.


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    Titel :

    Rate-distortion optimized zerotree image coding using wavelet transforms


    Beteiligte:
    Byong-Ki Lee, (Autor:in) / Yo-Sung Ho, (Autor:in)


    Erscheinungsdatum :

    2003-01-01


    Format / Umfang :

    247247 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Rate-Distortion Optimized Zerotree Image Coding using Wavelet Transforms

    Lee, B.-K. / Ho, Y.-S. / IEEE et al. | British Library Conference Proceedings | 2003



    Image coding using the embedded zerotree wavelet algorithm [2034-20]

    Shapiro, J. M. / SPIE | British Library Conference Proceedings | 1993