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Title: Error resilient video coding using B pictures in H.264
Authors: Ma, Mengyao
Au, Oscar C.
Chan, Shueng-Han Gary
Guo, Liwei
Keywords: Error propagation
Error ratio
Error resilience
Multi-hypothesis motion-compensated prediction
Issue Date: Jul-2009
Citation: IEEE transactions on circuits and systems for video technology, v. 19, iss. 10, October 2009, p. 1448-1461
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.
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Appears in Collections:ECE Journal/Magazine Articles
CSE Journal/Magazine Articles

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