161 search results - page 2 / 33 » An optical flow probabilistic observation model for tracking |
IJCV
2000
13 years 4 months ago
2000
Optical flow provides a constraint on the motion of a deformable model. We derive and solve a dynamic system incorporating flow as a hard constraint, producing a model-based least...
ICPR
2000
IEEE
14 years 5 months ago
2000
IEEE
In this paper, we propose an original approach for content-based video indexing and retrieval. It relies on the tracking of entities of interest and the analysis of their apparent...
ICCV
2003
IEEE
14 years 6 months ago
2003
IEEE
We present a method for unsupervised learning of classes of motions in video. We project optical flow fields to a complete, orthogonal, a-priori set of basis functions in a probab...
ICPR
2006
IEEE
14 years 5 months ago
2006
IEEE
This work presents an automatic technique for detection of abnormal events in crowds. Crowd behaviour is difficult to predict and might not be easily semantically translated. More...
CVPR
2009
IEEE
15 years 1 days ago
2009
IEEE
This paper deals with estimation of dense optical flow
and ego-motion in a generalized imaging system by exploiting
probabilistic linear subspace constraints on the flow.
We dea...