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    Method and apparatus for smoothing overall quality of video transported over a wireless medium
    1.
    发明申请
    Method and apparatus for smoothing overall quality of video transported over a wireless medium 审中-公开
    用于平滑通过无线介质传输的视频的整体质量的方法和装置

    公开(公告)号：US20070153891A1

    公开(公告)日：2007-07-05

    申请号：US10579156

    申请日：2004-11-11

    申请人： Petrus Van Der Stok ,  Clemens Wuest ,  Dmitri Jarnikov

    发明人： Petrus Van Der Stok ,  Clemens Wuest ,  Dmitri Jarnikov

    IPC分类号： H04B1/66 ,  H04N7/12

    CPC分类号： H04N19/30 ,  H04N21/234327 ,  H04N21/4424 ,  H04N21/4621

    摘要： A system and method for controlling a scalable video application by modeling it as a Markov decision process. The model is based on measuring the relative progress of the application, where relative progress is the difference between the allocated CPU budget for processing a frame and the actual CPU cycles used in processing a frame. The control strategy is based on the number of levels most recently decoded and the maximum levels that can be decoded for the next frame based on the number of received layers (the maximum quality level) and the budgeted CPU time. The object is to smooth quality transitions between frames by developing a quality level control strategy that minimizes both the number of deadline misses (frame not fully decoded) and the number of quality level changes, while maximizing the quality level. The fewer the number of quality level changes, the smoother the image viewed.

    摘要翻译： 一种通过将其建模为马尔可夫决策过程来控制可伸缩视频应用的系统和方法。 该模型基于测量应用的相对进度，其中相对进展是用于处理帧的所分配的CPU预算与用于处理帧的实际CPU周期之间的差异。 控制策略基于最近解码的电平数量和基于接收层数（最大质量水平）和预算CPU时间可以为下一帧解码的最大电平。 目的是通过开发质量水平控制策略来平滑帧之间的质量转换，从而最大限度地降低质量水平，最大限度地减少最终期限（帧未完全解码）和质量水平变化的数量。 质量水平变化的数量越少，图像越平滑。