IVS Overview

Introduction
video surveillance system consists of networks of closed-circuit television (CCTV), multiple display monitors and a team of security personnel. The deployment of CCTVs has to be carefully considered to provide a full coverage of key areas to be under surveillance.

An Intelligent Video Surveillance (IVS) System involves the use of video analytics in video surveillance system which automates the decision-making process of humans in identifying potential threats. The word “intelligent” signifies the use of smart programming software as assistance to humans during the surveillance process.

Evolution
The first generation video surveillance involves CCTV cameras using video tapes for recording. A multiplexer serves the purpose of collecting various images for displaying on monitors which are monitored by security officials only.

The second generation video surveillance replaces video tapes with digital video recorder (DVR). Automatic event detection enables recordings to be triggered by motion events in the scene to save up memory space.

The third generation video surveillance involves more advanced technologies and the integration of intelligent algorithms. IP cameras were used in combination with network video recorders. Algorithms were programmed to perform object detection, tracking and event analysis which greatly enhanced the applications of video surveillance.