Filter banks and wavelet decompositions that employ recursive filters have been considered previously and are recognized for their efficiency in partitioning the frequency spectrum. This paper presents an analysis of a new infinite impulse response (IIR) filter bank in which these computationally efficient filters may be changed adaptively in response to the input. The filter bank is presented and discussed in the context of finite-support signals with the intended application in subband image coding. In the absence of quantization errors, exact reconstruction can be achieved and by the proper choice of an adaptation scheme, it is shown that IIR time-varying filter banks can yield improvement over conventional ones.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen


    Exportieren, teilen und zitieren



    Titel :

    Recursive time-varying filter banks for subband image coding


    Beteiligte:

    Erscheinungsdatum :

    01.01.1992


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch




    Spatially-varying IIR filter banks for image coding

    Chung, Wilson C. / Smith, Mark J. T. | NTRS | 1992


    Design of Nonlinear-Phase Filter Banks for Subband Coding of Images

    Domanski, M. / Swierczynski, R. / IEEE; Signal Processing Society | British Library Conference Proceedings | 1994


    Region Based Subband Image Coding Scheme

    Kwon, O.-J. / Chellappa, R. / IEEE; Signal Processing Society | British Library Conference Proceedings | 1994


    Subband Coding Methods

    Pollara, F. | NTRS | 1994


    Optimal Entropy Coding in Image Subband Coders

    Lervik, J. M. / Ramstad, T. A. / IEEE; Signal Processing Society | British Library Conference Proceedings | 1994