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» Anomalous video event detection using spatiotemporal context
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MVA
2007
150views Computer Vision» more  MVA 2007»
13 years 6 months ago
Detecting the Degree of Anomal in Security Video
We have developed a method that can discriminate anomalous image sequences for more efficiently utilizing security videos. To match the wide popularity of security cameras, the me...
Kyoko Sudo, Tatsuya Osawa, Xiaojun Wu, Kaoru Wakab...
CVPR
2005
IEEE
14 years 7 months ago
Detection and Explanation of Anomalous Activities: Representing Activities as Bags of Event n-Grams
We present a novel representation and method for detecting and explaining anomalous activities in a video stream. Drawing from natural language processing, we introduce a represen...
Raffay Hamid, Amos Y. Johnson, Samir Batta, Aaron ...
EWSN
2008
Springer
14 years 4 months ago
Spatiotemporal Anomaly Detection in Gas Monitoring Sensor Networks
In this paper3 , we use Bayesian Networks as a means for unsupervised learning and anomaly (event) detection in gas monitoring sensor networks for underground coal mines. We show t...
X. Rosalind Wang, Joseph T. Lizier, Oliver Obst, M...
ICCV
2003
IEEE
14 years 7 months ago
Space-time Interest Points
Local image features or interest points provide compact ract representations of patterns in an image. In this paper, we propose to extend the notion of spatial interest points int...
Ivan Laptev, Tony Lindeberg
DGO
2007
135views Education» more  DGO 2007»
13 years 6 months ago
Prediction of 9-1-1 call volumes for emergency event detection
A multi-dimensional linear predictor of 9-1-1 (emergency) call volumes was built and used to automatically detect emergency events. This is illustrated by analyzing the emergency ...
Hector Jasso, Tony Fountain, Chaitan Baru, William...