University of Illinois Urbana-Champaign

Towards Multi-Site Collaboration in 3D Tele-Immersive Environments

Wu, Wanmin; Yang, Zhenyu; Gupta, Indranil; Nahrstedt, Klara

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Towards Multi-Site Collaboration in 3D Tele-Immersive Environments.pdf

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https://hdl.handle.net/2142/11430

Description

Title
Towards Multi-Site Collaboration in 3D Tele-Immersive Environments
Author(s)
  • Wu, Wanmin
  • Yang, Zhenyu
  • Gupta, Indranil
  • Nahrstedt, Klara
Issue Date
2008-03
Keyword(s)
  • tele-immersive environments
  • networking
Date of Ingest
2009-04-22T21:06:00Z
Abstract
"3D tele-immersion (3DTI) has recently emerged as a new way of video- mediated collaboration across the Internet. Unlike conventional 2D video-conferencing systems, it can immerse remote users into a shared 3D virtual space so that they can interact or collaborate ""virtually"". However, most existing 3DTI systems can support only two sites of collaboration, due to the huge demand of networking resources and the lack of a simple yet efficient data dissemination model. In this paper, we propose a general publish-subscribe model for multi-site 3DTI systems, which efficiently utilizes limited network resources by leveraging user interest. We focus on the overlay construction problem in the publish-subscribe model by exploring a spectrum of heuristic algorithms for data dissemination. With extensive simulation, we identify the advantages of a simple randomized algorithm. We propose optimization to further improve the randomized algorithm by exploiting semantic correlation. Experimental results demonstrate that we can achieve an improvement by a factor of five."
Type of Resource
text
Genre of Resource
Technical Report
Permalink
http://hdl.handle.net/2142/11430
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