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Gustavo de los Reyes, Amy R. Reibman, Shih-Fu Chang. A Corruption Model for Motion Compensated Video Subject to Bit Errors. In Packet Video '99, New York, NY, April 1999.

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We present a model of how corruption propagates in a block-based-encoded video decoder when the bitstream is subjected to bit errors. Our Markov model takes into account both corruption introduced via bit errors and corruption propagated via motion compensation. The model incorporates the impact of spatial and temporal source resilience on limiting the propagation of corruption within a frame and across time. For a given video sequence, the model requires source-specific inputs characterizing motion and spatial energy. It also requires encoder-specific inputs characterizing resilience slice length and the proportion of I-blocks per frame. One final parameter needed by the model is the average number of bits in a compressed block. We apply the model to the specific example of determining the optimal allocation of bit rate among spatial resilience, temporal resilience, and source rate in a transcoder that injects resilience into the compressed bitstream


Shih-Fu Chang

BibTex Reference

   Author = {de los Reyes, Gustavo and R. Reibman, Amy and Chang, Shih-Fu},
   Title = {A Corruption Model for Motion Compensated Video Subject to Bit Errors},
   BookTitle = {Packet Video '99},
   Address = {New York, NY},
   Month = {April},
   Year = {1999}

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