602 search results - page 19 / 121 » gradient vector flow |
CVPR
1997
IEEE
14 years 2 months ago
1997
IEEE
— A number of active contour models have been proposed that unify the curve evolution framework with classical energy minimization techniques for segmentation, such as snakes. Th...
CVPR
2003
IEEE
14 years 12 months ago
2003
IEEE
We describe an algorithm for reconstructing the 3D shape of the scene and the relative pose of a number of cameras from a collection of images under the assumption that the scene ...
ICIP
2009
IEEE
14 years 11 months ago
2009
IEEE
In this paper we propose a new method for human action categorization by using an effective combination of a new 3D gradient descriptor with an optic flow descriptor, to represent...
ICIP
2001
IEEE
14 years 11 months ago
2001
IEEE
The information conveyed by optical flow is analytically linked to the observer motion in this paper by decomposing the optical flow field into its vector field components. It is ...
ICPR
2004
IEEE
14 years 11 months ago
2004
IEEE
In this paper, we study the use of optical flow as a characteristic for tracking. We analyze the behavior of three flowbased observation models for particle filter algorithms, and...