Reference picture selection (RPS) is the most common error resilience method for robust transmission over lossy networks. However, RPS has been studied for use in real-time encoding, but has not been examined in transmitting an already encoded MPEG bitstream. In this paper, we propose a compressed-domain approach for the efficient implementation of RPS in the pre-encoded MPEG bitstream with minimum requirement on the server complexity. In the proposed algorithm, a novel macroblock-based algorithm is used to adaptively select the necessary macroblocks, manipulate them in compressed-domain and send the processed macroblocks to the receiver. Experimental results show that, as compared to the original RPS, the new algorithm reduces the required server complexity significantly.


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    Title :

    Reference picture selection in an already MPEG encoded bitstream


    Contributors:


    Publication date :

    2005-01-01


    Size :

    203978 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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