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We present a novel multi-view video acquisition system using object tracking-based multi-PTZ camera control. Proposed system captures multi-view videos for an object-of-interest by controlling multi-PTZ cameras to focus on it. Control information of each PTZ camera is calculated by homography and a tracked position of the object-of-interest in a top-view image. Moreover, object tracking is performed...
Multipath TCP has become the transmission technique of choice for the multi-homed environment. Recently, there have been multiple attempts to verify the security of Multipath TCP; but an eavesdropper in the initial handshake breaches the primary security goal of Multipath TCP. In this paper, we introduce a secure scheme against an initial eavesdropper, using asymmetric key exchange. We optimize the...
In this paper, we propose L3 handover scheme using SIP messages to minimize handover latency and packet loss in a MN with single interface. Packet loss and handover latency arise from L2/L3 association delay and IP configuration delay when the MN transfers internet connectivity from the serving access router to the target access router using legacy terminal mobility mechanisms. Therefore, seamless...
This paper proposes a functional architecture on MS (Mobile Station) for MS. The proposed MS has several management modules and binding tables about authentication and session to provide seamless multimedia services. The binding table about authentication and session to provide seamless multimedia services. The binding table is managed in the MSS(Media Streaming Server) as well as HG(Home Gateway)...
In this paper, we propose a mechanism to support switching of multimedia services toward one display equipment among others connected to IP sharing device especially in home network. For this, we developed a client agent mounted on display equipment for recognizing of user's information, a switching agent mounted on IP sharing device, which is related to IPtables management in the device, and embedded...
Along with the increase of all-digital movie theaters, the overarching service category called other digital stuff (ODS) has been drawing more and more attention. The target contents of ODS include not only plays and musicals but also a wide variety of entertainment such as concerts and sports. All are the target of strong demands for real-time streaming The development of an ultra-realistic streaming...
Many protocol particulars developed for the wireless mesh networks, such as multi-path routing, channel assignment, topology control, assume that a network-wide collaboration is available to establish connections to the network outside. However, the collaboration can be easily discouraged in the presence of selfish behaviors, referred to as free-riding. In this paper, we propose a framework, PReSENt,...
IP traceback in MANET (mobile ad-hoc network) is more difficult than in traditional wired network because of the dynamically-changing topologies and limitation in resource. Researches in IP traceback for MANET largely follow the similar approaches as in the wired network and are having difficulties in overcoming the above mentioned topology and resource limitation problem. We suggest to cope with...
Recently, the convergence of the broadcasting and telecommunication has been issued. As representative convergence models, the broadcasting with bi-directional return path and IPTV with TPS(triple player service) service have been already developed and penetrated into the consumers. In advance to the tendency, TV-anytime forum standardized the system and method for bi-directional return path service...
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