Federated Edge for Tracking Mobile Targets on Video Surveillance Streams in Smart Cities

Abstract

Nowadays, video surveillance is a very common practice in Smart Cities. There are public and private video surveillance systems, and very often different systems or single devices frame the same area. However, when a target needs to be identified or needs to be tracked in real-time, such solutions typically require human intervention to configure the devices in the best possible way (e.g., choosing the optimal cameras, setting up their focus, and so on). To address such a problem, in this paper, we define a new interrogation method based on a Federated Edge approach. This approach addresses the problem from the point of view of both camera hardware and shooting angle associated with it. According to the presented approach, it is possible to understand which the best camera to identify a target and possibly tracking it in a specific area is. A case study is defined in the context of urban mobility management.

A Survey of Video Surveillance Systems in Smart City

“…Using the lightweight DNN with edge computing can reduce the computational cost of object detection [49]. Whereas the aforementioned methods usually use one camera to detect a moving object based on the difference between recorded frames, in [74], federated edges were used to position multiple cameras to detect an object from multiple angles. Federated edges in smart city surveillance allow multiple cameras to work together to detect objects from various angles.…”

Designing a Low-Cost System to Monitor the Structural Behavior of Street Lighting Poles in Smart Cities

“…The use of a sensor network and some specific communication technologies can transform street lighting poles, which are also approximately indicated as columns, into intelligent and multifunctional structures [ 2 ]. For example, it is possible to monitor environmental parameters [ 3 ], to manage vehicular traffic [ 4 ] or to implement the safety policies of a city [ 5 , 6 ]. These necessities have played prominent roles in society, and a large part of recent scientific and industrial efforts are directed in such a way.…”