419 search results - page 12 / 84 » On the curvature of guided surfaces |
PG
2007
IEEE
14 years 1 months ago
2007
IEEE
A new geometry-based finite difference method for a fast and reliable detection of perceptually salient curvature extrema on surfaces approximated by dense triangle meshes is pro...
ICPR
2004
IEEE
14 years 8 months ago
2004
IEEE
Previous studies of tortuosity were restricted to a curve in 2D or 3D. We propose several measures of surface tortuosity based on surface normals and principal curvatures, and app...
VISUALIZATION
1995
IEEE
13 years 11 months ago
1995
IEEE
We present a method for constructing tensor product Bezier surfaces from contour (cross-section) data. Minimal area triangulations are used to guide the surface construction, and ...
ICPR
2000
IEEE
14 years 8 months ago
2000
IEEE
This paper describes a new method to recover the sign of the local Gaussian curvature at each point on the visible surface of a 3-D object. Multiple (p > 3) shaded images are a...
GRAPHICSINTERFACE
2000
13 years 9 months ago
2000
As modeling and visualization applications proliferate, there arises a need to simplify large polygonal models at interactive rates. Unfortunately existing polygon mesh simplifica...