Transmission of 3D Geometry over Lossy Channels
Algorithms to reliably transmit meshes over a lossy network
Project Description
The continual improvement in computer performance together with the
prevalence of high-speed network connections with high throughput
and moderate latencies enables the deployment of multimedia
applications, such as collaborative virtual environments, over wide
area networks. Many of these systems use 3D graphics for display and
may be required to distribute geometric models on demand between
participants. This work modified progressive mesh models to allow
reconstruction in the event of packet loss. We used these
modifications in two transmission schemes, a hybrid transmission that
uses TCP and UDP to send packets and a forward error-correcting
transmission scheme that uses redundancy to decode the information
sent. We formally assessed the performance of these transmission schemes when
deployed on network testbeds that simulate wide-area and wireless
characteristics.
Publications
- Chen, Z., J. F. Barnes, and B. Bodenheimer
``Hybrid and Forward Error Correction Transmission Techniques for
Unreliable Transport of 3D Geometry,'' Multimedia Systems
Journal, 10(3), pp. 230-244, March 2005.
- Chen, Z., B. Bodenheimer, J. F. Barnes
``Extending Progressive Meshes for Use over Unreliable Networks'',
2003 IEEE Conference on Multimedia and Expo,, v. 3, pp. 253-256, Baltimore,
MD, July 2003.
- Chen, Z., B. Bodenheimer, J. F. Barnes,
``Robust Transmission of 3D Geometry Over Lossy Networks'',
Proceedings of the 8th International Conference on 3D Web Technology, pp. 161-173,
St. Malo, France, March 2003.
Students and Collaborators
Bobby Bodenheimer 
.