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Histograms of optical flow orientation for abnormal events detection

Abstract : In this paper, we propose an algorithm to detect abnormal events based on video streams. The algorithm is based on histograms of the orientation of optical flow descriptor and one-class SVM classifier. We introduce grids of Histograms of the Orientation of Optical Flow (HOF) as the descriptors for motion information of the monolithic video frame. The one-class SVM, after a learning period characterizing normal behaviors, detects the abnormality which is considered as the event needed to be recognized in the current frame. Extensive testing on dataset corroborates the effectiveness of the proposed detection method.
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Conference papers
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https://hal-utt.archives-ouvertes.fr/hal-02319093
Contributor : Jean-Baptiste Vu Van <>
Submitted on : Thursday, October 17, 2019 - 4:21:17 PM
Last modification on : Friday, October 18, 2019 - 1:32:41 AM

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Tian Wang, Hichem Snoussi. Histograms of optical flow orientation for abnormal events detection. 2013 IEEE International Workshop on Performance Evaluation of Tracking and Surveillance (PETS 2013), Jan 2013, Clearwater, United States. pp.45-52, ⟨10.1109/PETS.2013.6523794⟩. ⟨hal-02319093⟩

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