6 search results - page 1 / 2 » Detecting Abnormal Events via Hierarchical Dirichlet Process... |
PAKDD
2009
ACM
14 years 3 months ago
2009
ACM
Abstract. Detecting abnormal event from video sequences is an important problem in computer vision and pattern recognition and a large number of algorithms have been devised to tac...
ICCV
2011
IEEE
12 years 11 months ago
2011
IEEE
In the security domain a key problem is identifying rare behaviours of interest. Training examples for these behaviours may or may not exist, and if they do exist there will be fe...
ICIP
2007
IEEE
15 years 16 days ago
2007
IEEE
The clustering-based approach for detecting abnormalities in surveillance video requires the appropriate definition of similarity between events. The HMM-based similarity defined ...
ICASSP
2008
IEEE
14 years 5 months ago
2008
IEEE
Clustering-based approaches for abnormal video event detection have been proven to be effective in the recent literature. Based on the framework proposed in our previous work [1],...
CVPR
2008
IEEE
15 years 26 days ago
2008
IEEE
We propose a novel nonparametric Bayesian model, Dual Hierarchical Dirichlet Processes (Dual-HDP), for trajectory analysis and semantic region modeling in surveillance settings, i...