Proceedings of the 27th annual conference on Computer graphics and interactive techniques
Marker Tracking and HMD Calibration for a Video-Based Augmented Reality Conferencing System
IWAR '99 Proceedings of the 2nd IEEE and ACM International Workshop on Augmented Reality
Computation and performance issues In coliseum: an immersive videoconferencing system
MULTIMEDIA '03 Proceedings of the eleventh ACM international conference on Multimedia
LOD of video avatar for walkthrough applications
ACM SIGGRAPH 2003 Sketches & Applications
Remote collaboration using Augmented Reality Videoconferencing
GI '04 Proceedings of the 2004 Graphics Interface Conference
Understanding performance in coliseum, an immersive videoconferencing system
ACM Transactions on Multimedia Computing, Communications, and Applications (TOMCCAP)
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We demonstrate a real-time 3-D augmented reality video-conferencing system. The observer sees the real world from his viewpoint, but modified so that the image of a remote collaborator is rendered into the scene. For each frame, we estimate the transformation between the camera and a fiducial marker using techniques developed in Kato and Billinghurst [1999]. We use a shape-from-silhouette algorithm to generate the appropriate view of the collaborator in real time. This is based on simultaneous measurements from fifteen calibrated cameras that surround the collaborator. The novel view is then superimposed upon the real world image and appropriate directional audio is added. The result gives the strong impression that the virtual collaborator is a real part of the scene.