157 search results - page 17 / 32 » 3D surface filtering using spherical harmonics |
WSCG
2004
13 years 9 months ago
2004
The parametrization of 3-d meshes can be used in many fields of computer graphics. Mesh-texturing, mesh-retriangulation or 3-d morphing are only few applications for which a mesh ...
ICCV
2001
IEEE
14 years 9 months ago
2001
IEEE
We prove that the set of all Lambertian reflectance functions (the mapping from surface normals to intensities) obtained with arbitrary distant light sources lies close to a 9D lin...
ICIP
2009
IEEE
13 years 5 months ago
2009
IEEE
In medical imaging, anatomical and other structures such as urinary stones, are often extracted with the aid of active contour/surface models. Active surface-based methods have ro...
CAD
2006
Springer
13 years 7 months ago
2006
Springer
A large amount of 2D drawings have been produced in engineering fields. To reuse and share the available drawings efficiently, we propose two methods in this paper, namely 2.5D sp...
ICPR
2008
IEEE
14 years 2 months ago
2008
IEEE
In this paper we apply the classic theory of Harmonic Analysis and the Conformal Geometric Algebra (CGA) to evaluate the Fourier transform on the unit sphere S2 and on the rotatio...