6 search results - page 1 / 2 » Two-Dimensional Polar Harmonic Transforms for Invariant Imag... |
PAMI
2010
12 years 11 months ago
2010
This paper introduces a set of 2D transforms, based on a set of orthogonal projection bases, to generate a set of features which are invariant to rotation. We call these transforms...
CVPR
2003
IEEE
14 years 6 months ago
2003
IEEE
Omnidirectional images arising from 3D-motion of a camera contain persistent structures over a large variation of motions because of their large field of view. This persistence ma...
ICIP
2004
IEEE
14 years 6 months ago
2004
IEEE
In this paper we suggest viewing images (as well as attacks on them) as a sequence of linear operators and propose novel hashing algorithms employing transforms that are based on ...
ICIP
2005
IEEE
14 years 6 months ago
2005
IEEE
Recently, it was proven empirically that facial expressions can be modelled as isometries, that is, geodesic distances on the facial surface were shown to be significantly less se...
SMI
2006
IEEE
13 years 10 months ago
2006
IEEE
The description of 3D shapes with features that possess descriptive power and invariant under similarity transformations is one of the most challenging issues in content based 3D ...