18 search results - page 1 / 4 » Estimating the Tensor of Curvature of a Surface from a Polyh... |
ICCV
1995
IEEE
13 years 8 months ago
1995
IEEE
Estimating principal curvatures and principal directions of a surface from a polyhedral approximation with a large number of small faces, such as those produced by iso-surface con...
COMPGEOM
2003
ACM
13 years 10 months ago
2003
ACM
We address the problem of curvature estimation from sampled smooth surfaces. Building upon the theory of normal cycles, we derive a definition of the curvature tensor for polyhed...
CAGD
2011
12 years 8 months ago
2011
This work concerns the approximation of the shape operator of smooth surfaces in R3 from polyhedral surfaces. We introduce two generalized shape operators that are vector-valued l...
CAGD
2000
13 years 4 months ago
2000
This paper presents a method for estimating curvature values of a surface, which is given only approximatively, e.g., by measured data. The presented method requires estimates of ...
ICCV
1999
IEEE
13 years 9 months ago
1999
IEEE
We describe an effective and novel approach to infer sign and direction of principal curvatures at each input site from noisy 3D data. Unlike most previous approaches, no local su...