- Meeting time: Mondays, 2:30pm, sn252
- Goal: share good papers in terrain modeling and visualization so that we have some common background for our diverse projects.
Voronoi Diagram conference report, 10 July, Leo
I will report results of some interesting papers from the Voronoi diagram conference in Banff.
Future presentations
Feature matching
Error metrics for surfaces
Line-of-sight Visibility:
Past presentations
Shawn Brown on Subdivisions
SubdivisionMethods.ppt from the book "Subdivision Methods For Geometric Design: A Constructive Approach" by Joe Warren and Henrik Weimer.
19 June: Tim: Making curved triangles
26 June: Leonard: interpolation by triangles
Irregular mesh wavelets, 3 July, Snoeyink
This is a different take on building wavelets on irregular meshes. It coarsens a mesh in a way that can be refined again, and records differences in a way that I still have to explain.
I'm going to focus on the topological/geometric questions that arise for the best way to coarsen a mesh so it can be refined...
- http://www.creatis.insa-lyon.fr/~valette/pub/VP04TVCG1.pdf Sébastien Valette and Rémy Prost, Wavelet Based Multiresolution Analysis Of Irregular Surface Meshes, IEEE Transactions on Visualization and Computer Graphics, Vol. 10, No. 2, March/April 2004, pp. 113-122.
- http://www.creatis.insa-lyon.fr/~valette/pub/VP04TVCG2.pdf Sébastien Valette and Rémy Prost, A Wavelet-Based Progressive Compression Scheme For Triangle Meshes : Wavemesh, IEEE Transactions on Visualization and Computer Graphics, Vol. 10, No. 2, March/April 2004, pp. 123-129.
- Link to other papers by Valette & Prost: http://www.creatis.insa-lyon.fr/~valette/publis.htm
--
JackSnoeyink - 29 May 2006
Further Reading
- On Hills and Dales by James Clerk Maxwell, appeared in The Philosophical Magazine in 1870. In it, Maxwell discusses bottoms and summits of regions, watershed, contour lines, and more. Maxwell's thoughts here would eventually lead to modern Morse Theory.
- Multiresolution Signal Processing on Meshes by Igor Guskov, Wim Sweldens, Peter Schröder, appeared in the Proceedings of SIGGRAPH 1999. The authors describe signal processing techniques over the domain of irregular triangle meshes. The papers on wavelets over irregular meshes that Jack linked above make reference to this paper.
- Discrete Differential-Geometry Operators for Triangulated 2-Manifolds by Mark Meyer, Mathieu Desbrun, Peter Schröder and Alan H. Barr, appeared at 2002. The authors give a set of tools that can be used to approximate differential quantities (normal, gradient, curvatures, etc.) smoothly over a triangulated surface. This could be a useful if one of our aims is slope preservation.
--
TimThirion - 07 Jul 2006
to top