公开(公告)号：US20150026747A1

公开(公告)日：2015-01-22

申请号：US14329786

申请日：2014-07-11

Applicant: The Hong Kong University of Science and Technology ,  Inter-University Research Institute Corporation, Research Organization of Information and Systems ,  Singapore University of Technology and Design ,  University of Southern California, Signal and Image Processing Institute

Inventor： Oscar Chi Lim AU ,  Wei DAI ,  Gene CHEUNG ,  Ngai Man CHEUNG ,  Antonio ORTEGA DIEGO

IPC: H04N21/2383 ,  H04N21/234

CPC classification number: H04N21/23439 ,  H04N19/126 ,  H04N19/147 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/19 ,  H04N21/2662 ,  H04N21/4621

Abstract: Stream-switching techniques are applied in a content delivery system. A merge frame is generated as a function of bit-rates, distortion, and a piecewise constant operator. Parameters of the piecewise constant operator are selected to optimize the merge frame. Data streams are switched based on bandwidth requirements, switch requests, and throughput of a network. Images are reconstructed based on the merge frames and prediction frames. Reconstructed images are identically reconstructed for any prediction frame based on the merge frame.

Abstract translation: 流切换技术应用于内容传送系统。 作为比特率，失真和分段常数运算符的函数产生合并帧。 选择分段常数运算符的参数以优化合并帧。 基于带宽要求，交换机请求和网络吞吐量来切换数据流。 基于合并帧和预测帧重建图像。 对于基于合并帧的任何预测帧，重建的图像被相同地重构。