An adaptive media playout for intra-media synchronization of networked-video applications

被引：11
|
作者：
Park, SangHoon [1 ]
Kim, JongWon [1 ]
机构：
[1] GwangJu Inst Sci & Technol, Dept Informat & Commun, Networked Media Lab, Kwangju 500712, South Korea
来源：
JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION | 2008年 / 19卷 / 02期
关键词：
intra-media synchronization; adaptive media playout; discontinuity model; media streaming;
D O I：
10.1016/j.jvcir.2007.09.002
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
Adaptive media playout (AMP) aims to improve the media synchronization quality of streaming applications by regulating the playout time interval among media units (MUs) at a receiver. In this paper, we introduce an AMP scheme based on a discontinuity model for intra-media synchronization of video applications over the best-effort networks. We analyze the temporal distortion (i.e., discontinuity) cases, such as playout pause and skip, to define a unified discontinuity model. Based on the discontinuity model, an objective intra-media synchronization quality metric is defined as the root mean square error (RMSE) of discontinuity. After that, we establish a practical algorithm that enables an efficient playout speed control to enhance the intra-media synchronization quality. Simulation results verify the enhanced intra-media synchronization quality through comparison with a conventional buffer-threshold-based scheme. (c) 2007 Elsevier Inc. All rights reserved.
引用
收藏
页码：106 / 120
页数：15
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