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《数字社区&智能家居》2010,(1):15-15
长江七号网络电视是一款基于聚合技术的P2P网络直播软件,提供了目前最流行的PPlive、QQLive、PPStream、SopCast、CCTV、TVU、沸点电视、蚂蚁电视、优度电视、皮皮影视等P2P网络电视核心引擎。作为一款新的产品,长江七号网络电视不仅仅足传统意义上的P2P电视大全,它采用先进的封装技术, 相似文献
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1月24日获悉,天津蓝剑网际服务有限公司选定由英迅(Intransa)公司提供企业IP存储区域网基础设施,用于建构基于IP的新型互联网VOD(视频点播)和IPTV(强交互电视)系统。天津蓝剑网际服务有限公司总裁彭海燕介绍说:“与以往的光纤通道SAN相比,英迅(Intransa)公司的IP SAN解决方案将会帮助我们在全国范围内更加经济高效地部署网络电视平台。通过对英迅(Intransa)IP SAN解决方案所作的先期投资,我们通过实践得到验证,这的确是一种速度更快、灵活性和可管理性更高的存储架构。它可以满足我们20个子站点流媒体视频点播和IPTV的需求,并… 相似文献
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随着视频信号处理技术和宽带传输技术的快速发展,结合了电视和PC机特性的网络电视也迅速的发展起来。网络电视是一种利用宽带网络为用户提供交互式多媒体服务的业务,采用了视频编码、流媒体及缓存技术等多种关键技术。其主要特点在于交互性和实时性,通过网络电视业务,用户可以得到高质量的数字媒体服务,可以自由地选择宽带IP网的视频节目,还可以实现多种在线信息咨询、娱乐、教育及商务功能结合在一起。 相似文献
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一、网络电视的概念及优势。网络电视(IPTV)也叫交互式网络电视,是利用宽带网的基础设施,以家用电视机(或计算机)作为主要终端设备.集互联网、多媒体、通信等多种技术于一体,通过互联网络协议(IP)向家庭用户提供包括数字电视在内的多种交互式数字媒体服务的崭新技术。也即以IP机顶盒为主要终端,以电视机为主要显示设备,以遥控器为主要输入设备,以宽带IP为主要传输网络提供多媒体信息服务。 相似文献
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2005年元旦期间,山东威海信息港宽带应用平台用户张先生对IPTV有了切身感受,视频点播的大片让他直呼过瘾。IPTV是利用IP宽带网络,集互联网、多媒体、通信等多种技术于一体,向用户提供直播电视、视频点播、上网浏览等多种交互式服务的业务。用户可以通过“IP机顶盒 电视”或电脑两种方式使用IPTV业务。 相似文献
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IP网络电视应用中的流媒体处理技术 总被引:2,自引:0,他引:2
主要介绍在IP网络电视应用中的流媒体处理技术。首先简要介绍了因特网上的流媒体技术和MPEG-2中TS流的格式,以及网络电视系统的框架;然后针对在网络电视系统中对TS流处理所涉及的模块,分别介绍了多种格式媒体的输入处理、流媒体的安全保障和多路节目复用的技术;最后介绍这些技术在系统中的具体实现。 相似文献
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广播电视的节目内容需要进行监管,随着模拟电视向数字电视、网络电视的发展,也向监管方法提出新的需求.本文提出了一种适合于基于流媒体实时传输协议(RTP/RTCP)的网络电视内容监管方法.本方法在RTP包扩展头中嵌入与RTP内容绑定的内容监管标记,在内容监管标记中采用MD5、数字签名算法实现安全传输,采用FEC技术实现可靠传输,实现了网络电视的内容监管需求.最后对本方法的系统性能做了分析. 相似文献
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网络协议电视(IPTV)的用户收视兴趣不仅体现在用户观看的节目列表,还体现在节目的观看时间点和时长上。考虑到现有方法对时间点和时长的忽略,提出一种时段-时长耦合的LDA模型。通过刻画用户兴趣主题和收视时段的隐变量生成收视记录中的观看节目、观看时间点和时长,并用Gibbs采样对上述隐变量进行推断。在天津电视台用户行为数据上进行验证,结果表明,该模型可以得到节目相关性更高的兴趣主题,更加精确地挖掘到用户在不同时段的收视兴趣分布。将该模型用于IPTV节目推荐,相较于传统的cLDA,推荐效果有显著提升。 相似文献
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Internet Protocol-based Television (IPTV) is a digital television service which delivers television content via an IP network. The rapid growth of wireless network technology in recent years has changed, the way people access the Internet. Adding mobility to IPTV can create a truly compelling ubiquitous service which spans different network domains and varied IP-enabled terminals and devices, such as set-top boxes, PCs and cell phones. However, extending IPTV service to wireless networks requires overcoming bandwidth bottlenecks and high packet loss rates. Following the IEEE 802.16 standard, worldwide interoperability for microwave access (WiMAX) features high data rates and large service coverage, offering a wireless broadband solution for IPTV services. While previous research has focused on creating a broadband IPTV service few studies have practically evaluated IPTV applications in a wireless broadband network environment. In this paper, we model and evaluate a common constant bit rate (CBR)1 based IPTV application and an IPTV live streaming (PPStreaming)2 application while retrieving IPTV content via a WiMAX network. We also use the NS2 simulation tool to evaluate the performance of these two IPTV applications. The evaluation metrics include latency, packet loss, data rate and throughput statistics when the two IPTV applications are run in the WiMAX network. 1The simplest IPTV solution is to convey video content by CBR. IPTV operators and content delivery networks relay CBR streaming content to control the demand for network capacity. Broadcasters prefer CBR video as it conserves bandwidth resources, but CBR delivery can degrade video quality result in higher overall demand on network capacity. 2PPStreaming (also referred to as P2P streaming Internet TV) is a network for live media streaming. In principle it’s similar to BitTorrent (BT) in that it provides stable and smooth broadcast of TV programs to broadband users. Unlike traditional streaming media, PPStreaming adopts P2P-streaming technology and supports full-scale visits with tens of thousands of simultaneous users. Its client software can be used in the browser or as a standalone executable. 相似文献
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Oscar M. Bonastre Marie-José Montpetit Pablo Cesar 《Multimedia Tools and Applications》2011,53(3):481-485
The move to IP Protocol Television (IPTV) has challenged the traditional television industry by opening the Internet to high
quality real time television content delivery. Thus it has provided an enabling set of key technologies to understand and
foster further innovations in the multimedia landscape and to create dynamics in the TV value chain. This editorial provides
a brief overview of this special issue. It begins with a short introduction to IPTV Technology and then summarizes the main
contributions of the selected papers for this special issue, highlighting their salient features and novel results. 相似文献
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随着技术的快速发展,IPTV逐渐取代传统的TV。在IPTV的三种媒体获取方式——外部存储设备、远程共享目录和DLNA设备的基础上,设计一种新型的IPTV系统。该系统融合三种媒体获取方式,同化三种获取方式间的差异,增强IPTV的稳定性。 相似文献
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Thomas Stockhammer Jürgen Heiles Joachim Lüken 《Multimedia Tools and Applications》2011,53(3):533-555
IPTV services have been widely deployed by network operators around the world over the last years. However, real-time streaming
of Linear TV and Video-on-Demand (VoD) offerings, especially in High Definition quality, still puts a high burden on the network
and content servers concerning bandwidth, Quality-of-Service, processing performance and scalability if 100.000s of users
have to be supported simultaneously. While multicast delivery can cope with some of these problems for Linear TV services,
the unicast VoD services cannot take advantage of that and especially the request for on-demand content is expected to substantially
grow in the future. With the introduction of Content Download Services (CDSs), operators have the option to provide IPTV services
in innovative ways: They can provide high-quality video services to users with limited access bandwidth, offload the streaming
request for blockbuster movies at peak times from the VoD servers or provided personalized advertisements for insertion into
a live program event in advance to the users end device. The Digital Video Broadcast (DVB) Project has recently finalized
its CDS specification within its IPTV specification efforts. DVB CDS supports push and pull delivery models with unicast,
multicast and peer-to-peer distribution in order to enable various business models and use cases. In this work we introduce
the specified technology and map it to example use cases and business models. 相似文献