The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
On providing multimedia streaming services such as live streaming, VoD, server-client model has been used. By the way, server-client model does not provide enough scalability and load concentration problems. Hence, there are several P2P solutions have been emerged. P2P-based streaming service can provide very high scalabilities and accommodate massive number of users simultaneously. In this paper,...
Recently, Peer-to-Peer (P2P) IPTV applications represents a challenging trend of the Internet. IPTV refers to the delivery of live video streaming and Video on Demand (VoD). In this paper, the basic concepts and algorithms of some popular existing IPTV applications are presented based on the experience of a real system deployed by PPLive, CoolStreaming, Sopcast and UUSee. The performance and technological...
In this paper we use prefix cache and patching algorithm which are administration way for cache. The system of proxy cache for streaming media is achieved, which is referred to operation principle of streaming media service and used RTSP protocol. In addition, it considers bytes benefit of stream media file and the size of file block, so it is more reasonable when move data block out of cache. It...
Media streaming in mobile environments is becoming more and more important with the proliferation of 3G technologies and the popularity of online media services such as news clips, live sports, and movies. To avoid disconnection and/or service breakdown when the users keep moving, proper data management strategies must be taken by all parties. We propose a two-level framework and a set of new techniques...
Video streams are increasing by the development of network environments and price reduction of camera devices. Therefore needs of applications for querying video streams such as surveillance systems are on the increase. Meanwhile, relational stream processing systems have been researched for querying tuple streams. It is hard to deal with video streams by relational stream processing systems because...
A system architecture that enhances existing videophone service with Augmented Reality (AR) technology is designed. The architecture is used to prototype an “AiR Stamp” system that allows users to place virtual objects on video images as if they were affixing stamps to actual scenes. System feasibility is evaluated by applying it to a remote support service scenario where the stamps are used for telepointing...
In this paper, we propose a new Time-Driven Mesh (TDM) overlay network for peer-to-peer video-on-demand systems. In our TDM, all of the peers construct a mesh network connected among them in chronological order of their playback starting times. In order to efficiently search multiple streaming suppliers, we manage the playback starting time and the network location information for all of the peers...
Within the EU FP7 project FascinatE, a capture, production and delivery system capable of allowing end-users to interactively view and navigate around an ultra-high resolution video panorama showing a live event is being developed. Network-based processing is used to repurpose the content to suit delivery towards different device types and user selection of regions of interest. In this paper we report...
Many students feel difficulties in programming learning and, consequently, the failure rates in introductory programming courses are frequently high. Some students do not have the necessary commitment, while others do not show a natural ability for programming, which means they need more time to master the necessary knowledge and develop appropriate problem solving skills. Often, class pace is very...
Bee zone is a large-scale live video streaming system, which adopts dual-protocol-stack technology and gossip-like protocol to build an unstructured P2P application layer overlay, which can be used in IPv4/v6 hybrid network environment. We run the system during the 2010 FIFA World Cup South Africa. By collecting the logs from the system when it works, we study the workload, performance, and dynamics...
This paper researches on IMS multimedia sharing service modes. Multimedia sharing service allows service users to share multimedia in a variety of multimedia sharing modes with one or more IMS multimedia sharing service users through IMS multimedia service system (but not limited to) using an IMS multimedia sharing client. This paper concretely studies and designs the functions and service flows for...
At present, most traditional distribution systems adopt special distribution services framework, often only for the characteristics of multimedia applications with a single provision. However, the existing framework cannot provide service guarantee for group-multimedia communication. To solve this problem, this paper designed to work on a new service multimedia group-communication system architecture...
An existing network video monitoring system has already realized putting independent video sources online, to monitor, manage and share resources in unison, in use of IP-based network. With the popularization of wireless network, system should resolve the bandwidth bottleneck in order for good of support for wireless video's uploading technology. So as to improve user experience, it is very important...
Proposed a new Mobile Streaming System that can support live broadcasts, video on demand an time- shifted base-on Http Live Streaming Protocol, with a cross-platform client, litter constraints of server network, and user accessing media data from web server. Media encoding format is mpeg + mp3 , using m3u8 file format to index and organize the media data.
Applications for video communication support that individuals or organizations share video and voice in different places. However, most of existing applications are proprietary systems that lack generality. In this paper, we present a common framework which named VCF (Video Communication Framework) for these applications. The architecture of this framework is modular, and is based on the D-Bus inter-process...
To solve the flux hedging in live streaming system, this paper proposes a new P2P live streaming architecture which includes a client side and a back-stage management system. Details design and implementation of key modules are also presented. Real case study shows that our system has less latency in broadcasting and better load balancing. It can realize better resource sharing among nodes and improve...
Due to the large amount of users of the next generation IPTV system and the limitation for RTCP control messages below 5% of the total allowed bandwidth, the traditional RTCP feedback framework caused large intervals when sending feedback messages from each receiver. To solve these problems, the hierarchical feedback model is proposed in this paper and combined to the design of video quality monitoring...
This paper introduces functions and features of the MPEG-4 streaming media, combine its media properties with Microsoft's digital rights management component WMRM, design and implemented the digital rights management system based on MPEG-4 streaming media, this system possessed a higher Security and stability, it has a high application value on development of streaming media in e-commerce.
When an instructor creates an educational content with narration on Microsoft PowerPoint, it is the easiest method that he/she uses one's built-in feature of recording narration because there is no need to install any other software. We constructed the content authoring system for e-Learning, named Kumamoto Universal and Multipurpose Authoring (KUMA) system, which is based on cloud computing. Using...
This paper introduces the IP Multimedia Subsystem (IMS) and its terminal application. It develops a software system of the IMS intelligent terminal based on Windows Mobile. The paper also introduces the development environment and the overall structure of the IMS terminal and describes the main thread. It presents the complete process of the Internet Protocol Television (IPTV) in detail through elaborating...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.