One of the significant problems in video compression schemes is the high fluctuation in output data rate over the video sequence. These compression schemes, in general, utilize a rate control algorithm in order to maintain the output data rate at a constant level regardless of the properties of the video sequence and differences in compression ratios of different picture types. In this paper, we propose a novel rate control algorithm with the particle swarm optimization (PSO) (J. Kennedy and R.C. Ebehart, 1948) technique for offline MPEG-1/2 codecs. We model the rate control problem as an optimization problem and use the PSO to obtain a better optimal solution. Experimental results show that the proposed method can improve the average picture signal to noise ratio (PSNR) by more than 2 dB.


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    Titel :

    PSO based bit rate optimization for MPEG-1/2 video coding


    Beteiligte:
    Arachchi, H.K. (Autor:in) / Fernando, W.A.C. (Autor:in)


    Erscheinungsdatum :

    01.01.2005


    Format / Umfang :

    113461 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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