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Currently, many E-Learning platforms of different qualities are available. Most of them lack in the direct interactivity between teacher and students and among students. In this paper, a framework of virtual classroom model on the Internet is proposed. It connects the advantages of existing offline approaches, like a white board, with the advantages of live streaming systems with many participants...
With the popularity of video streaming on the Internet an entirely new type of media player has been created called the adaptive video player that dynamically adjusts video quality depending on available network bandwidth. When combined with cloud computing this new way of serving media has the potential to change the video streaming landscape by allowing content to be streamed reliably from anywhere...
Over the last decades, various kinds of Internet enabled devices have been developed. DLNA (Digital Living Network Alliance) has provided standard guidelines to improve the interoperability of DLNA-capable devices and to enhance the usability of digital contents through DLNA Certified devices. However, for several reasons, the transmission for media sharing between DLNA devices is still not seamless...
In this paper, we introduce a system called Virtual Device Ensembler (VDE) providing virtual UPnP renderers which are combined with the rendering functions of real UPnP renderers. We present the architecture of the system and discuss the issues raised when we implement the system.
With the development of the Internet and computer, the application and the research of streaming media technology are developed rapidly. How to assign reasonably resources among different media nodes become hot spots. We proposed a new load balancing method based on simulated annealing algorithm in streaming media system. Simulation results show that the proposed algorithm can effectively increase...
Adaptive HTTP streaming has become a new trend to support adaptivity in video delivery. A HTTP streaming client needs to estimate exactly resource availability and resource demand. In this paper, we focus on the most important resource which is bandwidth. To this end, our proposed streaming approach consists of 1) throughput prediction and 2) content bitrate prediction. The experiments show that our...
Television or TV, including internet TV, is a very attractive service to the public and at the same time mobile devices such as tablet or smartphone with broadband network, as a handy device, is available anywhere and anytime.
Resource allocation play an important role in service composition for cloud-based video surveillance platform. In this platform, the utilization of computational resources is managed through accessing various services from Virtual Machine (VM) resources. A single service accessed from VMs running inside such a cloud platform may not cater the application demands of all surveillance users. Services...
In this paper, we present an innovative scheme that efficiently creates MP4 files from raw audio and video files, and hints them into streamable files. We utilize the DTQ structure for video hinting and SLS for audio hinting. Unlike hinting schemes in literatures where extractors and aggregators are heavily relied, none of them are required in our system. In the proposed system, media layers are presented...
Small playback lag in live streaming is important for time-critical and interactive applications such as live stock, market updates, sports and remote education. In this paper, we present Elite addresses the playback lag problem in peer-assisted live streaming systems. Instead of deploying a large initial offset to all the users, Elite seeks the possibility of initializing users with layered proportional...
Smart devices have deeply modified the user consumption expectations getting used to rich interactive experiences around new media services. In this emerging landscape, TV rises as the central media device integrating the home network ecosystem. In the race to create more dynamic and customizable content, computer generated 3D graphics get a prominent position combined with video and audio to provide...
Credited lectures using the web-based e-learning in Japan began at higher education institutions in 2001. The lecture evaluation was done by using a questionnaire to students when the lecture began. The questionnaire survey is carried out again in 2012 after ten years' separation. The load to make e-learning contents is still high for professors. A rapid e-learning system including the production...
In recent years, IPTV service has been focused on and invested heavily by many service providers. Among the various IPTV service, VoD (Video on Demand) service is expected to be one of the most popular services. Currently, most of service providers are trying to provide VoD service by locating proxy nearby end-users because it is hard for a single server to cover all the requests from the entire service...
In order to accurately assess the impact of geographical location on the energy footprint of digital media requires energy usage models of the Internet that take into account the geographic distance between both users and data providers. In this paper, we present the first such model to do this. Given the specific location of a data source and a user, we use traceroute data to estimate the number...
In this paper, we proposed a centralized SIP-based Video Conference System. The function structure of the system was designed and the implementation method was introduced. The proposed Video Conference System can meet to the needs of the application in small medium enterprises, and it can provide higher conference quality with a lower cost.
Federation of geo-distributed cloud services is a trend in cloud computing which, by spanning multiple data centers at different geographical locations, can provide a cloud platform with much larger capacities. Such a geo-distributed cloud is ideal for supporting large-scale social media streaming applications (e.g., YouTube-like sites) with dynamic contents and demands, owing to its abundant on-demand...
The rising wave of internet applications has led to the rapid development of streaming media technology. This paper proposes time-triggered events algorithm using a script object transformation to XML documents to create the automatic EFP studio system for real-time editing and broadcasting of audio/ video on media server. The system provides the user access to web multiple cameras and AV equipment...
Nowadays, a lot of e-Learning systems are widely deployed in educational schools. Typical e-Learning systems are implemented as client-server model. In the client-server model, the number of clients affects on the load of the server. In order to reduce the load on the server, we developed a P2P-based distributed e-Learning system. The proposed system consists of a lot of mobile agents which manage...
Streaming media servers need to acquire data from local disk frequently. Because of the much lower reading/writing speed of disk than random access memory (RAM), good RAM caching policy can efficiently reduce disk I/O. The traditional technique is using a greedy and suboptimal algorithm based on the 0–1 knapsack problem model. In this paper we propose a partially observable Markov decision process...
From both technical and social viewpoints there is great value in services that require devices (and therefore people) to be co-located. The very act of co-location brings with it entirely new dynamics and collaboration; furthermore, devices in coalition can render services and provide experiences that a single device might not be able to. In this paper we describe the motivation, design, and uses...
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