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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2006, Vol. 7 Issue (Supplement 1): 119-124    DOI: 10.1631/jzus.2006.AS0119
Original Paper     
An optimal quality adaptation mechanism for end-to-end FGS video FGS video transmission
Feng Shun, Er Gui-Hua, Dai Qiong-Hai, Liu Ye-Bin
Broadband Networks & Digital Media Laboratory, Department of Automation, Tsinghua University, Beijing 100084, China
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Abstract  In this paper, we propose a novel optimal quality adaptation algorithm for MPEG-4 fine granular scalability (FGS) stream over wired network. Our algorithm can maximize perceptual video quality by minimizing video quality variation and increasing available bandwidth usage rate. Under the condition that the whole bandwidth evolution is known, we design an optimal algorithm to select layer. When the knowledge of future bandwidth is not available, we also develop an online algorithm based on the optimal algorithm. Simulation showed that both optimal algorithm and online algorithm can offer smoothed video quality evolution.

Key words： MPEG-4 fine granular scalability (FGS)      Video streaming      Transmission      Quality adaptation     
Received: 05 December 2005     
CLC:  TN919.8  
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Feng Shun
Er Gui-Hua
Dai Qiong-Hai
Liu Ye-Bin
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Feng Shun, Er Gui-Hua, Dai Qiong-Hai, Liu Ye-Bin. An optimal quality adaptation mechanism for end-to-end FGS video FGS video transmission. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2006, 7(Supplement 1): 119-124.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2006.AS0119     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2006/V7/ISupplement 1/119

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