Crowd Behavior Representation Using Motion Influence Matrix for Anomaly Detection

In this paper, we propose a new method to detect abnormal behavior in crowd video. The motion influence matrix is proposed to represent crowd behaviors. It is generated based on concept of human perception with block-level motion vectors which describe actual crowd movement. Furthermore, a generaliz...

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Vydáno v:Proceedings - IEEE Computer Society Conference on Pattern Recognition and Image Processing s. 110 - 114
Hlavní autoři: Dong-Gyu Lee, Heung-Il Suk, Seong-Whan Lee
Médium: Konferenční příspěvek
Jazyk:angličtina
Vydáno: IEEE 01.11.2013
Témata:
Anomaly detection
Computer vision
Conferences
Crowd analysis
Feature extraction
Force
Legged locomotion
Pattern recognition
Vectors
video surveillance
ISSN:0730-6512
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Shrnutí:In this paper, we propose a new method to detect abnormal behavior in crowd video. The motion influence matrix is proposed to represent crowd behaviors. It is generated based on concept of human perception with block-level motion vectors which describe actual crowd movement. Furthermore, a generalized framework is developed to detect abnormal crowd behavior using motion influence matrix. The proposed method has an advantage of that does not require any human detection or segmentation method which make it robust to human detection error by using optical flows which is extracted from two continuous frames. In this model, a normal behavior is presented by a low motion influence value. On the other hand, a high motion influence value indicates occurrence of abnormal behavior. Spatio-temporal cuboids are extracted from the motion influence matrix to measure the unusualness of the frame. Two different kinds of abnormal behaviors are dealt in this research: global abnormal behavior and local abnormal behavior. For t quantitative measurement of effectiveness of the proposed method, we evaluate our algorithm on two datasets: UMN and UCSD for global and local abnormal behavior, respectively. Experimental results show that the proposed method outperforms the competing methods.
ISSN:0730-6512
DOI:10.1109/ACPR.2013.30