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An error resilience scheme on an end-to-end distortion analysis for video transmission over Internet

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5 Author(s)
Hongkai Xiong ; Inst. of Image Commun. & Inf. Process., Shanghai Jiao Tong Univ., China ; Songyu Yu ; Jun Sun ; Jun Zhuo
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In this paper, an end-to-end rate-distortion (R-D) estimation recursive model is proposed, on the basis of the statistical analysis of the spatial and temporal prediction as well as a general error concealment method by the video decoder. It takes the source quantization error, channel error, and the subsequent error spatial-temporal propagation into account. Then a corresponding integrated error resilience scheme, which adopts a global optimal intra-macroblock (MB) refreshment ratio and visual acuity selection procedure, is introduced. Moreover, it employs a combined source-channel bit allocation strategy, which could estimate an instantaneous available source transmission rate under a given time-varying network condition. The network experiments show that this scheme is effective and applicable for a better and more consistent picture quality in the receiver end.

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IEEE Transactions on Consumer Electronics  (Volume:50 ,  Issue: 2 )