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Violent behaviour detection using local trajectory response

Lloyd, Kaelon, Rosin, Paul L., Marshall, Andrew D. and Moore, Simon C. 2017. Violent behaviour detection using local trajectory response. Presented at: 7th International Conference on Imaging for Crime Detection and Prevention, Madrid, Spain, 23-25 November 2016. 7th International Conference on Imaging for Crime Detection and Prevention (ICDP 2016). IET Seminar Digests 2016/0006 Institution of Engineering and Technology, pp. 78-83. 10.1049/ic.2016.0082

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Surveillance systems in the United Kingdom are prominent, and the number of installed cameras is estimated to be around 1.8 million. It is common for a single person to watch multiple live video feeds when conducting active surveillance, and past research has shown that a person’s effectiveness at successfully identifying an event of interest diminishes the more monitors they must observe. We propose using computer vision techniques to produce a system that can accurately identify scenes of violent behaviour. In this paper we outline three measures of motion trajectory that when combined produce a response map that highlights regions within frames that contain behaviour typical of violence based on local information. Our proposed method demonstrates state-of-the-art classification ability when given the task of distinguishing between violent and non-violent behaviour across a wide variety of violent data, including real-world surveillance footage obtained from local police organisations.

Item Type: Conference or Workshop Item (Paper)
Date Type: Publication
Status: Published
Schools: Computer Science & Informatics
Crime and Security Research Institute (CSURI)
Publisher: Institution of Engineering and Technology
ISBN: 978-1-5108-4524-4
Date of First Compliant Deposit: 1 September 2017
Date of Acceptance: 3 October 2016
Last Modified: 22 May 2022 08:20

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