A source model describes the relationship between the bits, distortion, and quantization step sizes of a large class of block-transform video coder is proposed. This model is derived from rate-distortion theory, and verified by real images. It enables us to predict the bits needed to encode a picture for a given distortion or to adjust the quantization scales of a coder for a given bit rate. Based on this derived model, a variable frame rate coding algorithm is developed. It can be used to control the frame rate of a coder to ensure a minimum picture quality of every frame. Simulation results indicate that improved performance is obtained by using this variable frame rate coding scheme when compared to the simple approach of varying the quantization scale linearly proportional to the encoder buffer level.<>


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    A transform video coder source model and its application


    Beteiligte:
    Jiann-Jone Chen (Autor:in) / Hsueh-Ming Hang (Autor:in)


    Erscheinungsdatum :

    01.01.1994


    Format / Umfang :

    439660 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    A Transform Video Coder Source Model and Its Application

    Chen, J.-J. / Hang, H.-M. / IEEE; Signal Processing Society | British Library Conference Proceedings | 1994



    Improved 3D-Wavelet Video Coder

    Zongping, Z. / Guizhong, L. / Xingsong, H. | British Library Online Contents | 2001


    A block transform coder for arbitrarily shaped image segments

    Chen, H.H. / Reha Civanlar, M. / Haskell, B.G. | IEEE | 1994


    A Block Transform Coder for Arbitrarily Shaped Image Segments

    Chen, H. H. / Civanlar, M. R. / Haskell, B. G. et al. | British Library Conference Proceedings | 1994