602 search results - page 67 / 121 » gradient vector flow |
IJCV
1998
13 years 9 months ago
1998
We describe a new method for computing the displacement vector field in time sequences of 2D or 3D images (4D data). The method is energy-minimizing on the space of correspondence...
ICDAR
2011
IEEE
12 years 9 months ago
2011
IEEE
—Questioned Document Examination processes often encompass analysis of torn documents. To aid a forensic expert, automatic classification of content type in torn documents might ...
COLT
2005
Springer
14 years 3 months ago
2005
Springer
We discuss a simple sparse linear problem that is hard to learn with any algorithm that uses a linear combination of the training instances as its weight vector. The hardness holds...
CDC
2009
IEEE
14 years 2 months ago
2009
IEEE
Abstract— In this paper we consider the problem of constructing a distributed feedback law to achieve synchronization for a group of k agents whose states evolve on SO(n) and whi...
SIGGRAPH
1994
ACM
14 years 2 months ago
1994
ACM
The irradiance at a point on a surface due to a polyhedral source of uniform brightness is given by a well-known analytic formula. In this paper we derive the corresponding analyt...