Gregorij Kurillo1, Ruzena Bajcsy, Maurizio Forte2 and Oliver Kreylos3
We are developing a collaborative application for archeology that will allow archaeologists from remote locations to interact in real time through a shared virtual environment using teleimmersive technology . The collaborative application for archeology features distributed scene graph which is built on top of the collaborative virtual reality framework . The application allows users to load 3D objects of archeological artifacts and attaching them to different segments of the scene. The scene is represented by hierarchically organized scene graph which supports optimized rendering and interaction capabilities. The changes to the scene graph are transferred in real time via a network server which also updates the location of all the users in the space in the client applications. Thus the users can load, delete or move 3D objects or attach them to different coordinate systems inside a shared virtual environment.
Each user navigates and interacts independently with the virtual environment in the first person perspective while geographically distributed users are represented by their 3D reconstructed avatars. As the remote user moves through the space, his/her 3D avatar travels accordingly. At any time, individual users can switch to the other user’s point of view or select face-to-face view for direct conversation.
Figure 1: Remote users interact with the virtual world through their 3D avatars generated in real time by multiple stereo cameras.
- Kurillo, G., Vasudevan, R., Lobaton, E., Bajcsy, R, "A framework for collaborative real-time 3d teleimmersion in a geographically distributed environment" Proceedings of IEEE International Symposium on Multimedia, (ISM 2008), Berkeley, CA, Dec. 15-17, 2008.
- Kreylos, O., “Environment-independent VR development”, In: Bebis, G., et al. (Eds.): Advances in Visual Computing, ISVC 2008, Part I, LNCS 5358, pp. 901–912, 2008.
1University of California, Berkeley
2University of California, Merced
3University of California, Davis