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GIS
2007
ACM
15 years 11 months ago
2007
ACM
We present the GeoStar project at RPI, which researches various terrain (i.e., elevation) representations and operations thereon. This work is motivated by the large amounts of hi...
COMPGEOM
2006
ACM
15 years 3 months ago
2006
ACM
We construct a class of envelope surfaces in Rd , more precisely envelopes of balls. An envelope surface is a closed C1 (tangent continuous) manifold wrapping tightly around the u...
SMA
2005
ACM
15 years 3 months ago
2005
ACM
Nef polyhedra in d-dimensional space are the closure of half-spaces under boolean set operation. In consequence, they can represent non-manifold situations, open and closed sets, ...
VISUALIZATION
2002
IEEE
15 years 2 months ago
2002
IEEE
Typically 3-D MR and CT scans have a relatively high resolution in the scanning X;Y plane, but much lower resolution in the axial Z direction. This non-uniform sampling of an obje...
CGF
2010
14 years 10 months ago
2010
Many problems in geometric modeling can be described using variational formulations that define the smoothness of the shape and its behavior w.r.t. the posed modeling constraints....