In this paper we present a decentralized surveillance network composed of IP video cameras, analysis devices and a central node which collects information and displays it in a 3D model of the complete area. The exchange of information between all components in the surveillance network takes place according to the ONVIF specification, therefore ensuring interoperability between products complying with the specification and flexibility regarding the integration of new devices and services. The

more »

... lected information is displayed in a 3D model of the surveilled area, therefore providing a comfortable overview of the activity in large environments and offering the user an intuitive way to eventually interact with network devices.