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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2006, Vol. 7 Issue (Supplement 1): 48-53    DOI: 10.1631/jzus.2006.AS0048
Original Paper     
A channel distortion model for video over lossy packet networks
Cheng Jian-Xin, Gao Zhen-Ming, Zhang Zhi-Chao
School of Information Science and Engineering, Shandong University, Jinan 250100, China
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Abstract  Error-resilient video communication over lossy packet networks is often designed and operated based on models for the effect of losses on the reconstructed video quality. This paper analyzes the channel distortion for video over lossy packet networks and proposes a new model that, compared to previous models, more accurately estimates the expected mean-squared error distortion for different packet loss patterns by accounting for inter-frame error propagation and the correlation between error frames. The accuracy of the proposed model is validated with JVT/H.264 encoded standard test sequences and previous frame concealment, where the proposed model provides an obvious accuracy gain over previous models.

Key words： Channel distortion      Packet loss      Inter-frame error propagation      Correlation      Video communication     
Received: 15 December 2005     
CLC:  TN919.8  
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Cheng Jian-Xin
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Zhang Zhi-Chao
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Cheng Jian-Xin, Gao Zhen-Ming, Zhang Zhi-Chao. A channel distortion model for video over lossy packet networks. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2006, 7(Supplement 1): 48-53.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2006.AS0048     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2006/V7/ISupplement 1/48

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