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Understanding performance in coliseum, an immersive videoconferencing system

H. Harlyn Baker, Nina Bhatti, Donald Tanguay, Irwin Sobel, Dan Gelb, Michael E. Goss, W. Bruce Culbertson, Thomas Malzbender
2005 ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP)  
________________________________________________________________________ Coliseum is a multiuser immersive remote teleconferencing system designed to provide collaborative workers the experience of face-to-face  ...  We describe the various techniques and how they can be used to improve system performance for Coliseum and other network applications.  ...  Fig. 1 . 1 The Coliseum immersive videoconferencing system Fig. 2 . 2 Two Coliseum users in a shared virtual environment, as seen by a third. 4 Fig. 3 . 3 The simplified Coliseum processing pipeline  ... 
doi:10.1145/1062253.1062258 fatcat:uwmsfl37vvgshcptpfbybb2ngq

Computation and performance issues In coliseum

H. Harlyn Baker, Thomas Malzbender, Nina Bhatti, Donald Tanguay, Irwin Sobel, Dan Gelb, Michael E. Goss, John MacCormick, Kei Yuasa, W. Bruce Culbertson
2003 Proceedings of the eleventh ACM international conference on Multimedia - MULTIMEDIA '03  
Coliseum is a multiuser immersive remote teleconferencing system designed to provide collaborative workers the experience of face-to-face meetings from their desktops.  ...  In this way, Coliseum enables users to share a virtual world, with acquired-image renderings of their appearance replacing the synthetic representations provided by more conventional avatar-populated virtual  ...  Figure 1 . 1 The Coliseum immersive videoconferencing system Figure 2 . 2 Two Coliseum users in a shared virtual environment, as seen by a third.  ... 
doi:10.1145/957117.957118 fatcat:fbwkf6pt5fgbhpu5cyntvvf7y4

Computation and performance issues In coliseum

H. Harlyn Baker, Thomas Malzbender, Nina Bhatti, Donald Tanguay, Irwin Sobel, Dan Gelb, Michael E. Goss, John MacCormick, Kei Yuasa, W. Bruce Culbertson
2003 Proceedings of the eleventh ACM international conference on Multimedia - MULTIMEDIA '03  
Coliseum is a multiuser immersive remote teleconferencing system designed to provide collaborative workers the experience of face-to-face meetings from their desktops.  ...  In this way, Coliseum enables users to share a virtual world, with acquired-image renderings of their appearance replacing the synthetic representations provided by more conventional avatar-populated virtual  ...  Figure 1 . 1 The Coliseum immersive videoconferencing system Figure 2 . 2 Two Coliseum users in a shared virtual environment, as seen by a third.  ... 
doi:10.1145/957013.957118 dblp:conf/mm/BakerBTSGGMYCM03 fatcat:joeg23v2ibekhggeupxt6ycidi

Advantages of 3D Extraction and Spatial Awareness within a Videoconferencing Environment [article]

Myrna M. Rodriguez-Frias, Tim Morris, Martin Turner, Andrew Rowley
2011 Computer Graphics and Visual Computing  
This work-in-progress paper describes some of the issues, and lists proposed use-case scenarios, for the development of a real-time multi-participant 3D enhanced videoconferencing system.  ...  We are interested in creating a framework capable of reconstructing an approximate 3D model of the physical environment, from a collection of images taken via the same system from probably unknown camera  ...  a single webcam; "The Coliseum technology" [BTS * 02], unfortunately requiring 5 cameras in each user point; "Achieving Eye Contact in a One-to-Many 3D Video Teleconferencing System" [ALF * 09] an innovative  ... 
doi:10.2312/localchapterevents/tpcg/tpcg11/097-100 dblp:conf/tpcg/Rodriguez-FriasMTR11 fatcat:rvxknt7tnvdkzlkt3maulzllxy

Enabling Composition-Based Video-Conferencing for the Home

Jack Jansen, Pablo Cesar, Dick C. A. Bulterman, Tim Stevens, Ian Kegel, Jochen Issing
2011 IEEE transactions on multimedia  
This paper describes a videoconferencing system that meets performance constraints and functional requirements for use in consumer homes.  ...  The results validate our architectural decisions and provide a valuable input for further research in domestic videoconferencing.  ...  Performance of Videoconferencing Systems In order to establish a baseline for home performance, we conducted a set of experiments to gain insight on the performance of current commercial systems.  ... 
doi:10.1109/tmm.2011.2159369 fatcat:odgsezqv2nhkhmokmhr6ouwmae

Camera and Projector Arrays for Immersive 3D Video

Harlyn Baker, Zeyu Li
2009 Proceedings of the 2nd International ICST Conference on Immersive Telecommunications  
Keywords Multi-viewpoint capture, multi-viewpoint display, autostereo display, multi-camera calibration, multi-projector calibration, immersive display  ...  Applying recent advances in multi-imager capture and multi-projector display, we combine capabilities through the Nizza multimedia dataflow architecture to deliver low-cost wide-VGA-quality low-latency  ...  As part of earlier work in videoconferencing (Coliseum and Halo projects [2, 3] ), we developed a multiimager camera system-the FanCamera-that can obtain, as of this moment, up to 72 wide-VGA video streams  ... 
doi:10.4108/icst.immerscom2009.6238 dblp:conf/immerscom/BakerL09 fatcat:ob3cjmp7f5gbfbzs6oqzwybgu4

Beyond "beyond being there"

Nicolas Roussel, Sofiane Gueddana
2007 Proceedings of the 15th international conference on Multimedia - MULTIMEDIA '07  
We then propose the concept of multiscale communication as an alternative approach for motivating telecommunication research, an approach that aims at creating systems that support a variable degree of  ...  We then propose the concept of multiscale communication as an alternative approach for motivating telecommunication research, an approach that aims at creating systems that support a variable de-1 These  ...  Thanks to Rosane Ushirobira, Stéphane Chatty, Stéphane Sire and Angela Sutan for their helpful comments on an earlier version of this paper.  ... 
doi:10.1145/1291233.1291283 dblp:conf/mm/RousselG07 fatcat:yj3sj62eejhmhpdvzocxube3te

Stereo-Based Environment Scanning for Immersive Telepresence

J. Mulligan, X. Zabulis, N. Kelshikar, K. Daniilidis
2004 IEEE transactions on circuits and systems for video technology (Print)  
We draw from our experience developing stereo based tele-immersion prototypes to present the main issues arising when building these systems.  ...  We draw from our experience developing stereo based tele-immersion prototypes to present the main issues arising when building these systems.  ...  Fuchs, and A. van Dam for the wonderful collaboration in the National Tele-immersion Initiative as well as H. Towles and the entire UNC team for their contribution to the November 2002 demonstration.  ... 
doi:10.1109/tcsvt.2004.823390 fatcat:3qevwmztwjbqddx3py3kwga5ia

Video Chat with Multiple Cameras [article]

John MacCormick
2012 arXiv   pre-print
Some important trade-offs in the design of MultiCam are discussed, and typical usage scenarios are analyzed.  ...  Obviously, if you wouldn't invite your acquaintance Fred into your bedroom for a face-to-face meeting, then you shouldn't chat with Fred via an immersive video system based in your bedroom either.  ...  Fourth, some commercial videoconferencing systems offer certain multi-camera capabilities (see Section 3 for examples), although not in the chat-friendly format suggested here, as far as I am aware.  ... 
arXiv:1209.1399v1 fatcat:4ixhuwpzrjeoziyzihzdsgrel4

Understanding Remote Collaboration in Video Collaborative Virtual Environments [article]

Joerg Hauber, University Of Canterbury
2008
However, maturation of these systems requires a deeper understanding of human factors that emerge during mediated collaborative processes.  ...  This hypothesis is tested in four related comparative user studies involving teams of participants collaborating in video-CVEs, through standard video-conferencing systems, and being face-to-face.  ...  The success of the type of immersive setup used is very susceptible to the comfort people feel in an immersive experience.  ... 
doi:10.26021/2286 fatcat:423n2dvdpvaxtouqyo7bvlq44u

A GPU-based Framework for Real-time Free Viewpoint Television

Kyrylo Shegeda
2014
For the second problem, we proposed an open-source browser-based Free Viewpoint Video player. The player is implemented using WebGL where rendering is performed solely on a GPU.  ...  The view generation sub-system uses it to render new synthetic images for an arbitrary viewpoint. We show how the computations can be divided from each other and parallelized using CUDA.  ...  Figure 1.2: Video capture system proposed in [43] In 2005, Baker et al. [7] proposed Coliseum -an immersive videoconferencing system.  ... 
doi:10.7939/r3dx18 fatcat:zkquidz3wje4jmyze5si3n5hty