The Design and Implementation of a Wireless Video Surveillance System

Citations Over TimeTop 1% of 2015 papers

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.

Related Papers

• → ‘It’s Not Like in the Films’: Bereaved People’s Experiences of the Deathbed Vigil(2022)6 cited
• → The Use of “Night Prayer” at the Vigil for the Deceased with Reception at the Church(2000)
• → Notes on a Vigil for Grace Paley(2008)
• Notes on a Vigil for Grace Paley (December 11, 1922–August 22, 2007)(2008)
• → Donaciano Vigil: The Life of a Nuevomexicano Soldier, Statesman, and Territorial Governor by Maurilio E. Vigil and Helene Boudreau (review)(2023)