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      • Department of Electrical and Electronics Engineering
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      Rate-distortion optimization for stereoscopic video streaming with unequal error protection

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      Author(s)
      Tan, A. S.
      Aksay, A.
      Akar, G. B.
      Arikan, E.
      Date
      2009
      Source Title
      Eurasip Journal on Advances in Signal Processing
      Print ISSN
      1687-6172
      Electronic ISSN
      1687-6180
      Publisher
      SpringerOpen
      Volume
      2009
      Language
      English
      Type
      Article
      Item Usage Stats
      214
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      156
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      Abstract
      We consider an error-resilient stereoscopic streaming system that uses an H.264-based multiview video codec and a rateless Raptor code for recovery from packet losses. One aim of the present work is to suggest a heuristic methodology for modeling the end-toend rate-distortion (RD) characteristic of such a system. Another aim is to show how to make use of such a model to optimally select the parameters of the video codec and the Raptor code to minimize the overall distortion. Specifically, the proposed system models the RD curve of video encoder and performance of channel codec to jointly derive the optimal encoder bit rates and unequal error protection (UEP) rates specific to the layered stereoscopic video streaming. We define analytical RD curve modeling for each layer that includes the interdependency of these layers. A heuristic analytical model of the performance of Raptor codes is also defined. Furthermore, the distortion on the stereoscopic video quality caused by packet losses is estimated. Finally, analytical models and estimated single-packet loss distortions are used to minimize the end-to-end distortion and to obtain optimal encoder bit rates and UEP rates. The simulation results clearly demonstrate the significant quality gain against the nonoptimized schemes.
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      http://hdl.handle.net/11693/22830
      Published Version (Please cite this version)
      https://doi.org/10.1155/2009/632545
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      • Department of Electrical and Electronics Engineering 3868
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