Authors
Tian Wang, Jie Chen, Paul Honeine, Hichem Snoussi,
Title
Abnormal event detection via multi-kernel learning for distributed camera networks
In
International Journal of Distributed Sensor Networks
Volume
2015
Issue
Article ID 989450
Pages
1–9
Publisher
Hindawi
Year
2015
Publisher's URL
http://www.hindawi.com/journals/ijdsn/2015/989450/
Indexed by
Abstract
Distributed camera networks play an important role in public security surveillance. Analyzing video sequences from cameras set at different angles will provide enhanced performance for detecting abnormal events. In this paper, an abnormal detection algorithm is proposed to identify unusual events captured by multiple cameras. The visual event is summarized and represented by the histogram of the optical flow orientation descriptor, and then a multikernel strategy that takes the multiview scenes into account is proposed to improve the detection accuracy. A nonlinear one-class SVM algorithm with the constructed kernel is then trained to detect abnormal frames of video sequences. We validate and evaluate the proposed method on the video surveillance dataset PETS.
Affiliations
Offprint