상세정보
학술대회
An Immersive Telepresence Platform based on Distributed Architecture
- 발행일
- 201310
- 출처
- International Conference on Information and Communication Technology Convergence (ICTC) 2013, pp.465-467
- 협약과제
- 13PI2200, 다자간 협업을 위한 몰입형 스마트워크 핵심기술 개발, 김도영
- 초록
- A novel telepresence platform is proposed in this paper to provide immersive video conferencing based on distributed architecture and enhanced QoS/QoE technology. MCU(Multi-point Control Unit)-based telepresence platform has been widely used as a popular architecture due to its easy implementation of multiple video-audio mixing and conference controls from a central point. MCU-based platform usually inputs all participant's media and outputs mixed media for conference participants one by one through network. Proposed platform has a concept of 'main speaker' by decision algorithm during conference and determines a main speaker who sends a high-resolution media to simple nodes. Simple nodes manage routing tables, and they copy the media packets and forward them to conference participants according to the tables. For the immersive service, a robust packet loss recovery algorithm newly developed covers upto 10% bursty loss to prevent interruption of conference often observed in commercial Internet. Proposed platform with distributed media control protocol with enhanced QoS/QoE technology based on distributed architecture has been designed and implemented by software. It shows meaningful reduction of traffic over network with the shorter end-to-end media delay than observed in MCU-based platform under same conditions. © 2013 IEEE.
- KSP 제안 키워드
- Control Unit, Control protocol, Decision algorithm, Distributed architecture, End to End(E2E), High-resolution, Immersive video, MCU-Based, Mixed media, Packet loss recovery, Recovery algorithm