Architecture and implementation for scalable transfer of live videos in multimedia applications

R. Hess, T. Hutschenreuther, R. Lehmann, A. Schill
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Abstract

Todays networks are characterized by heterogeneous environments. Various transmission techniques coexist and offer different bandwidths at different costs. Because of videoconferences and similar applications becoming more and more important this paper presents the architecture of the video communication system "XNetvideo" which is scalable in terms of SNR (signal to noise ratio)-scaling, image size and frame rate. Xnetvideo is a tool for video transmission over IP-networks and especially ATM, that was developed at our Institute. The description of this architecture, and the discussion of implementation issues and performance results are the major topics of this contribution. Moreover a brief survey of existing tools and architectures in this area is given.
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多媒体应用中实时视频可伸缩传输的体系结构和实现
今天的网络以异构环境为特征。各种传输技术并存,以不同的成本提供不同的带宽。由于视频会议和类似的应用越来越重要,本文提出了一种从信噪比(信噪比)、图像大小和帧率等方面具有可扩展性的视频通信系统体系结构“XNetvideo”。Xnetvideo是一个通过ip网络尤其是ATM进行视频传输的工具,是我们研究所开发的。对该体系结构的描述以及对实现问题和性能结果的讨论是本文的主要主题。此外,还简要介绍了该领域现有的工具和体系结构。
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