Videoconferencing on the Internet

Videoconferencing on the Internet
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互联网上的视频会议

DOI:
10.1109/90.502233
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发表时间:
1996
期刊:
IEEE/ACM Trans. Netw.
影响因子:
--
通讯作者:
C. Huitema
C. Huitema
中科院分区:
--
文献类型:
--
作者:
T. Turletti;C. Huitema

文献摘要

被引文献

相似文献

本文介绍了INRIA视频会议系统(IVS),一个低带宽的工具,在互联网上使用UDP数据报和IP组播扩展工作站之间的实时视频。视频编解码器是ITU-T建议H.261的软件实现,最初是为综合业务数字网(ISDN)开发的。我们的重点是适应这种编解码器的互联网环境。我们提出了一个打包方案,一个错误控制方案和输出速率控制方案,适应图像编码过程中的网络条件。这项工作表明,它是可能的,以保持合理的质量,在整个分组交换网络的视频会议,而不需要特殊的支持,如资源预留或准入控制的网络。
This paper describes the INRIA videoconferencing system (IVS), a low bandwidth tool for real-time video between workstations on the Internet using UDP datagrams and the IP multicast extension. The video coder-decoder (codec) is a software implementation of the ITU-T recommendation H.261 originally developed for the integrated services digital network (ISDN). Our focus is on adapting this codec for the Internet environment. We propose a packetization scheme, an error control scheme and an output rate control scheme that adapts the image coding process based on network conditions. This work shows that it is possible to maintain videoconferences with reasonable quality across packet-switched networks without requiring special support from the network such as resource reservation or admission control.