Immerse whiteboards in a networked collaborative environment
Belle L. Tseng, Zon-Yin Shae, et al.
ICME 2001
The Internet explosion is driving the need for new collaboration tools which will enable two or more users to share data, audio, and video. The real-time packet-based solutions which are emerging differ considerably from the circuit-switch solutions which have existed for some time now. In this paper, we present one such packet-based approach, the Multimedia Multiparty Teleconferencing (MMT) system, which was fully implemented as a research prototype. Using MMT as an example, we address some of the fundamental issues related to videoconferencing systems in a packet-based environment, and discuss the differences with the traditional circuit-switch approaches, namely, the ITU H.320 standard. In particular, MMT is a distributed solution, while H.320 is centralized. The use of multicast and a novel video-mixing technique to facilitate the distributed solution are presented. Furthermore, MMT audio and video streams are susceptible to congestion and packet loss in the shared media packet-based environment, while H.320 streams use dedicated connections. As such, synchronization, error resilience, and dynamic rate control schemes for the packet-based system are presented.
Belle L. Tseng, Zon-Yin Shae, et al.
ICME 2001
Wing Ho Leung, Tsuhan Chen, et al.
GLOBECOM 2002
Chatschik Bisdikian, B. Patel, et al.
IWSM 1993
Zon-Yin Shae, Dinesh Garg, et al.
SCC 2007