Error resilient video coding using B pictures in H.264

  • Authors:

  • Mengyao Ma;Oscar C. Au;S.-H. Gary Chan;Liwei Guo

  • Affiliations:

  • Multimedia Technology Research Center, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China;Multimedia Technology Research Center, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China;Department of Computer Science and Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, China and Microsoft Research Asia, Beijing, China;Thomson Corporate Research, Princeton, NJ

  • Venue:
  • IEEE Transactions on Circuits and Systems for Video Technology
  • Year:
  • 2009

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Abstract

Since the quality of compressed video is vulnerable to errors, video transmission over unreliable Internet is very challenging today. Multi-hypothesis motion-compensated prediction (MHMCP) has been shown to have error resilience capability for video transmission, where each macroblock is predicted by a linear combination of multiple signals (hypotheses). B picture prediction is a special case of MHMCP. In H.264/AVC, the prediction of B pictures is generalized such that both of the two predictions can be selected from the past pictures or from the subsequent pictures. The multiple reference picture framework in H.264/AVC also allows previously decoded B pictures to be used as references for B picture coding. In this paper, we will discuss the error resilience characteristics of the generalized B pictures in H.264/AVC. Three prediction patterns of B pictures are analyzed in terms of their error-suppressing abilities. Both theoretical models (picture level error propagation) and simulation results are given for the comparison.