Proceedings of the 25th annual conference on Computer graphics and interactive techniques
Design of a virtual auditorium
MULTIMEDIA '01 Proceedings of the ninth ACM international conference on Multimedia
Video-Mediated Communication
Design of a multi-sender 3D videoconferencing application over an end system multicast protocol
MULTIMEDIA '03 Proceedings of the eleventh ACM international conference on Multimedia
TEEVE: The Next Generation Architecture for Tele-immersive Environment
ISM '05 Proceedings of the Seventh IEEE International Symposium on Multimedia
Learning Physical Activities in Immersive Virtual Environments
ICVS '06 Proceedings of the Fourth IEEE International Conference on Computer Vision Systems
A Study of Collaborative Dancing in Tele-immersive Environments
ISM '06 Proceedings of the Eighth IEEE International Symposium on Multimedia
VirtualizeMe: interactive model reconstruction from stereo video streams
Proceedings of the 2008 ACM symposium on Virtual reality software and technology
Region-of-interest volumetric visual hull refinement
Proceedings of the 17th ACM Symposium on Virtual Reality Software and Technology
Disambiguation of horizontal direction for video conference systems
ISVC'11 Proceedings of the 7th international conference on Advances in visual computing - Volume Part II
Session management of correlated multi-stream 3D tele-immersive environments
MM '11 Proceedings of the 19th ACM international conference on Multimedia
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Tele-immersion is emerging as a new medium that creates 3D photorealistic, immersive, and interactive experience between geographically dispersed users. However, most existing tele-immersive systems can only support two-way collaboration. In this paper we propose a multi-layer framework and a new data dissemination protocol to support multi-site collaboration. The problem context is unique as multiple remote sites participate in an interactive tele-immersive session, where each site has multiple correlated 3D video streams to send (later referred as multi-stream/multi-site environments). The key challenge is to disseminate such large number of 3D live video streams among these sites subject to the bandwidth and latency constraints while satisfying QoS guarantees in visual quality. Among our findings is that the simple randomized algorithm outperforms many other static algorithms in the unique context. Moreover, the streams generated from one site have high semantic correlation, because often cameras at one site are shooting the same scene, only from different angles. We exploit the stream correlation in the multicast protocol to minimize the level of loss.