High-quality networked terrain rendering from compressed bitstreams
Fabio Bettio, Enrico Gobbetti, Fabio Marton, and Giovanni Pintore
April 2007
Abstract
We describe a compressed multiresolution representation and a client-server architecture for supporting interactive high quality remote visualization of very large textured planar and spherical terrains. Our approach incrementally updates a chunked level-of-detail BDAM hierarchy by using precomputed wavelet coefficient matrices decoded from a compressed bitstream originating from a thin server. The structure combines the aggressive compression rates of wavelet-based image representations with the ability to ensure overall geometric continuity for variable resolution views of planar and spherical terrains with no need for run-time stitching. The efficiency of the approach is demonstrated on a large scale interactive remote visualization of global and local terrains on ADSL networks. A library implementing an early version of this work has been incorporated into a widely distributed geo-viewing system with tens of thousands of clients.
Reference and download information
Fabio Bettio, Enrico Gobbetti, Fabio Marton, and Giovanni Pintore. High-quality networked terrain rendering from compressed bitstreams. In Proc. ACM Web3D International Symposium. Pages 37-44, April 2007. ACM Press. New York, NY, USA.
Fabio Bettio, Enrico Gobbetti, Fabio Marton, and Giovanni Pintore High-quality networked terrain rendering from compressed bitstreams. CRS4 Video n. 140 - Date: April 2007
Presented at the ACM Web3D International Symposium. Pages 37-44, April 2007. ACM Press. New York, NY, USA.
Bibtex citation record
@InProceedings{Bettio:2007:HQN, author = {Fabio Bettio and Enrico Gobbetti and Fabio Marton and Giovanni Pintore}, title = {High-quality networked terrain rendering from compressed bitstreams}, booktitle = {Proc. ACM Web3D International Symposium}, organization = {ACM Press}, pages = {37-44}, publisher = {New York, NY, USA}, month = {April}, year = {2007}, abstract = { We describe a compressed multiresolution representation and a client-server architecture for supporting interactive high quality remote visualization of very large textured planar and spherical terrains. Our approach incrementally updates a chunked level-of-detail BDAM hierarchy by using precomputed wavelet coefficient matrices decoded from a compressed bitstream originating from a thin server. The structure combines the aggressive compression rates of wavelet-based image representations with the ability to ensure overall geometric continuity for variable resolution views of planar and spherical terrains with no need for run-time stitching. The efficiency of the approach is demonstrated on a large scale interactive remote visualization of global and local terrains on ADSL networks. A library implementing an early version of this work has been incorporated into a widely distributed geo-viewing system with tens of thousands of clients. }, url = {http://vic.crs4.it/vic/cgi-bin/bib-page.cgi?id='Bettio:2007:HQN'}, }
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