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Optimal mode selection in Internet video communication: an end-to-end approach

机译:互联网视频通信中的最佳模式选择:端到端方法

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We present an end-to-end approach to generalize the classical theory of rate distortion (R-D) optimized mode selection for point-to-point video communication. We introduce a notion of global distortion by taking into consideration of both the path characteristics and the receiver behavior, in addition to the source behavior. We derive, for the first time, a set of accurate global distortion metrics for any packetization scheme. Equipped with the global distortion metrics, we design an R-D optimized mode selection algorithm to provide the best trade-off between compression efficiency and error resilience. As an application, we integrate our theory with point-to-point MPEG-4 video conferencing over the Internet. Simulation results conclusively demonstrate that our end-to-end approach offers superior performance over the classical approach for Internet video conferencing.
机译:我们提出了一种端到端的方法来概括用于点对点视频通信的速率失真(R-D)优化模式选择的经典理论。除了源行为之外,我们还通过考虑路径特性和接收器行为来引入全局失真的概念。我们首次为任何打包方案推导了一组准确的全局失真度量。配备了全局失真度量之后,我们设计了一种R-D优化模式选择算法,以在压缩效率和错误恢复能力之间提供最佳折衷。作为应用程序,我们将我们的理论与Internet上的点对点MPEG-4视频会议集成在一起。仿真结果最终证明,我们的端到端方法在Internet视频会议方面比传统方法具有更高的性能。

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