90 search results - page 4 / 18 » Differentiable Invariants |
ECCV
2006
Springer
14 years 9 months ago
2006
Springer
We consider the use of top-points for object retrieval. These points are based on scale-space and catastrophe theory, and are invariant under gray value scaling and offset as well ...
ICIP
1998
IEEE
14 years 9 months ago
1998
IEEE
We describe a new invariant-based data model for image databases under our approach for shape-based retrieval. The data model relies on contours description of the image shape, an...
BMCV
2000
Springer
13 years 11 months ago
2000
Springer
The paper is a short tutorial on the multiscale differential geometric possibilities of the front-end visual receptive fields, modeled by Gaussian derivative kernels. The paper is ...
CDC
2009
IEEE
13 years 10 months ago
2009
IEEE
Abstract— We prove that a controllable set of smooth trajectories is the solution set of a constant coefficient linear differential equation if and only if it is linear, time in...
ECCV
2004
Springer
14 years 9 months ago
2004
Springer
Abstract. For shapes represented as closed planar contours, we introduce a class of functionals that are invariant with respect to the Euclidean and similarity group, obtained by p...