在网络中提供数字化音、视频等实时业务的多媒体多播通信是当前的研究热点。
To provide multicast for multimedia real time services, such as digital audio and video in networks, is one of the important issues in current research field.
随着网络技术、视频编解码技术和嵌入式操作系统的迅猛发展，世界将掀起一股强大的视频数字化、网络化浪潮。
With the rapid development of network technology, video codec technology and embedded operating system, the world will set off a powerful digital video, networking wave.
本文的选题源于松下公司(北京)的视频监控系统数字化、网络化改造项目。
The topic of this thesis is originated from a project of escalating Panasonic (Beijing) 's Video Surveillance System to be more digitalized and suitable for network environment.
目前，第三代数字化网络视频监控系统，可实现对大量视频数据实时地、远距离地传输，为人们提供了直观、快捷、有效的信息。
At present, a great deal of video data could be transported timely and distantly by the third generation system. And visual, shortcut and effective information is provided for people.
经分析，要构建一个网络数字电视系统，其关键技术主要集中在音视频信号数字化编码、音视频信号在IP网络有质量的传输、数字版权管理系统等方面。
The key technology of a IPTV system includes audio and video encode, QoS of audio and video transfers over IP network and digital right management system.
该系统可以有效地缓解医院网络通信带宽瓶颈问题，节约存储空间，并在实现医学视频数字化综合馆理的基础上，大大提高了医院科、教、研工作水平。
The system developed by this technology can effectively ease up the bottleneck situation of the LAN communication bandwidth and save the storage space, and pr…
该系统可以有效地缓解医院网络通信带宽瓶颈问题，节约存储空间，并在实现医学视频数字化综合馆理的基础上，大大提高了医院科、教、研工作水平。
The system developed by this technology can effectively ease up the bottleneck situation of the LAN communication bandwidth and save the storage space, and pr…
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