28 search results - page 1 / 6 » Topological Structures of 3D Tensor Fields |
VIS
2005
IEEE
14 years 5 months ago
2005
IEEE
Tensor topology is useful in providing a simplified and yet detailed representation of a tensor field. Recently the field of 3D tensor topology is advanced by the discovery that d...
PR
2008
13 years 4 months ago
2008
We present a unified feature representation of 2.5D pointclouds and apply it to face recognition. The representation integrates local and global geometrical cues in a single compa...
ICPR
2002
IEEE
14 years 5 months ago
2002
IEEE
In this paper we present a novel method to estimate curvature of iso grey-level surfaces in grey-value images. Our method succeeds where isophote curvature fails. There is neither...
DAGM
2009
Springer
13 years 2 months ago
2009
Springer
Spherical harmonics are widely used in 3D image processing due to their compactness and rotation properties. For example, it is quite easy to obtain rotation invariance by taking t...
ICCV
1999
IEEE
13 years 8 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...