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The Design and Implementation of a Wireless Video Surveillance System.

Zhang, T; Chowdhery, A; Bahl, P; Jamieson, K; Banerjee, S; (2015) The Design and Implementation of a Wireless Video Surveillance System. In: Fdida, S and Pau, G and Kasera, SK and Zheng, H, (eds.) Proceedings of the 21st Annual International Conference on Mobile Computing and Networking. (pp. pp. 426-438). Association for Computing Machinery: Paris, France. Green open access

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Abstract

Internet-enabled cameras pervade daily life, generating a huge amount of data, but most of the video they generate is transmitted over wires and analyzed offline with a human in the loop. The ubiquity of cameras limits the amount of video that can be sent to the cloud, especially on wireless networks where capacity is at a premium. In this paper, we present Vigil, a real-time distributed wireless surveillance system that leverages edge computing to support real-time tracking and surveillance in enterprise campuses, retail stores, and across smart cities. Vigil intelligently partitions video processing between edge computing nodes co-located with cameras and the cloud to save wireless capacity, which can then be dedicated to Wi-Fi hotspots, offsetting their cost. Novel video frame prioritization and traffic scheduling algorithms further optimize Vigil's bandwidth utilization. We have deployed Vigil across three sites in both whitespace and Wi-Fi networks. Depending on the level of activity in the scene, experimental results show that Vigil allows a video surveillance system to support a geographical area of coverage between five and 200 times greater than an approach that simply streams video over the wireless network. For a fixed region of coverage and bandwidth, Vigil outperforms the default equal throughput allocation strategy of Wi-Fi by delivering up to 25% more objects relevant to a user's query.

Type: Proceedings paper
Title: The Design and Implementation of a Wireless Video Surveillance System.
Event: MobiCom '15 : 21st Annual International Conference on Mobile Computing and Networking, Paris, France, September 07 - 11, 2015
ISBN-13: 9781450336192
Open access status: An open access version is available from UCL Discovery
DOI: 10.1145/2789168.2790123
Publisher version: http://dx.doi.org/10.1145/2789168.2790123
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Edge computing, video surveillance, wireless.
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Computer Science
URI: https://discovery.ucl.ac.uk/id/eprint/1506446
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