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On modeling and evaluating multicomputer transcoding architectures for live-video streams

在多为为实时影像的流变换体系结构的计算机建模并且评估上

作     者:de Mello, Rodrigo Fernandes Goularte, Rudinei Dodonov, Evgueni Yang, Laurence T. Park, Jong Hyuk Kim, Tai-hoon 

作者机构:Univ Sao Paulo Dept Comp Sci Inst Math & Comp Sci Sao Paulo Brazil St Francis Xavier Univ Dept Comp Sci Antigonish NS B2G 1C0 Canada Kyungnam Univ Masan South Korea Hannam Univ Taejon South Korea 

出 版 物:《MULTIMEDIA TOOLS AND APPLICATIONS》 (多媒体工具和应用)

年 卷 期:2009年第43卷第2期

页      面:109-129页

核心收录:

学科分类:0808[工学-电气工程] 08[工学] 0835[工学-软件工程] 0812[工学-计算机科学与技术(可授工学、理学学位)] 

基  金:CAPES, Brazil [032506-6] FAPESP, Brazil 

主  题:Live video Transcoding Multimedia 

摘      要:The pervasive and ubiquitous computing has motivated researches on multimedia adaptation which aims at matching the video quality to the user needs and device restrictions. This technique has a high computational cost which needs to be studied and estimated when designing architectures and applications. This paper presents an analytical model to quantify these video transcoding costs in a hardware independent way. The model was used to analyze the impact of transcoding delays in end-to-end live-video transmissions over LANs, MANs and WANs. Experiments confirm that the proposed model helps to define the best transcoding architecture for different scenarios.

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