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作者机构:King Saud Univ CCIS Riyadh Saudi Arabia
出 版 物:《MULTIMEDIA TOOLS AND APPLICATIONS》 (多媒体工具和应用)
年 卷 期:2014年第73卷第1期
页 面:169-188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:Research Center of College of Computer and Information Sciences (CCIS) King Saud University
主 题:Service composition Distributed video surveillance QoS Transcoding service Ant-based algorithm
摘 要:Quality of Service (QoS) is essential for the ubiquitous access of media services in real-time distributed video surveillance applications. To have ubiquitous access of desired media with emergency officials handheld devices, appropriate media transcoding services are required. Currently, it is challenging to select and compose these services for each of the devices to satisfy the desired QoS demand. To compose these media services so that video stream is available for target pervasive and smart devices, a composition algorithm is required. Thus, this paper presents a QoS-aware service composition algorithm to select the best composition for the target ubiquitous client so that it can optimally provide QoS to heterogeneous users. We have implemented a video surveillance prototype to demonstrate the performance of the proposed QoS-aware composition algorithm. Results from this prototype reveal that the approach is suitable for real-time video surveillance.