Progress in complex stitching, hole filling and rectification algorithms are making laser ranging a more useful tool for 3D modeling of complex environments.
(PRWEB) October 11, 2005 -- The use of scanning laser ranging technology to automatically capture geometry for 3D modeling is both promising and challenging. A paper presented by Greg Passmore at the 2005 Visuals & Simulation Technology Conference focuses on the solutions to using a successive overlapping spherical scanning topology.
These methods require a variety of post scan processing tasks that have be problematic. These include scan shadow areas which must be reconciled with other scans, multi-scan geometry stitching, hole filling of regions where the return beam was absorbed or reflected, texture alignment, texture normalization and reasonable distribution of survey line error. Alternative scanning topologies, such as path following line scanners and cylindrical scanners are possible alternative solutions to certain problems discussed.
At the conference, Greg Passmore demonstrated new research results that solve these problems. These new techniques allow for rapid, automated methods of complex scan reconstructions. Using recursive algorithms and 3D image processing techniques, multiple scans were aligned, rectified, decimated and stitched into manageable and high quality models. The resulting models are compatible with Maya and 3D Studio Max and are small enough to allow for efficient handling and rendering.
Greg Passmore is a researcher with SimVisLab and also a well known fashion photographer. He combines his interests in 3D graphics and photography to produce photorealistic imagery used in advertising and entertainment.
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