Distributed Surveillance System

The present paper describes a distributed surveillance system that has the ability to detect, track and snapshot subjects moving around in a certain space. The system is composed by several surveillance agents and a central surveillance agent which communicates with them and process data. The surveillance agents are composed by a camera and a computer with wireless communication. The central surveillance agent runs on a computer also with wireless communication. In order to support the communication between the two types of agents, was created a language called VigiLANG. This language allows a high-level communication interface between the several surveillance agents and the central surveillance agent. The proposed surveillance system performs robust image segmentation providing the user images with the relevant information; provides robust subject detection and identification; supports expansion; etc. The system is totally configurable through the definition of new surveillance policies and may be easily expanded through the addition of new surveillance agents. The system was validated by performing a vast set of experiments, achieving very good results in the detection and position estimation of the subjects under surveillance