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Using inter-frame dependence history to select intra-refresh blocks

Using inter-frame dependence history to select intra-refresh blocks

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To prevent error propagation in predictive video coding, intra-refresh methods are often employed. Here, a new algorithm for macroblock intra-refresh that is based on pixel level inter-frame dependence history is proposed. This new method keeps track of the coding mode of every pixel and refreshes those macroblocks that contain pixels with a long history record. Simulation results show that the new algorithm performs better than the existing methods while maintaining the same bit rate.

References

    1. 1)
      • ITU–T SG16/Q15-K-52 H263 TMN12.0.
    2. 2)
      • ISO/IEC JTC1/SC29/WG11 N3908 MPEG4 video verification model version 18.0.
    3. 3)
      • ISO/IEC JTC1/SC29/WG11 N0400 MPEG2 video test model 5.
http://iet.metastore.ingenta.com/content/journals/10.1049/el_20020924
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