Video surveillance is a system that allows real-time visual monitoring of protected areas or subsequent reviewing of archived content. It is used for protection of facilities of all sizes and purposes – both for the surveillance of private and monetary facilities and institutions, as well as for surveillance of other public and external spaces. The system primarily acts preventively to create a psychological moment and deter potential criminals from committing a criminal offense, shortening the time of perpetration, allowing identification and capture of perpetrators, and subsequent reconstruction of the events. In addition to the security, video surveillance system also has many other features such as production control, traffic regulation or fire detection in an open area.
In practice, the video surveillance system is a system consisting of one or more surveillance cameras that are connected to a central unit (recorder) that processes the signals from those cameras. The central unit stores the images from the cameras and is responsible for distribution of signals locally to a monitor screen or via a TCP/IP network to a distant location where the image can be monitored in real-time, and review the recorded material from the recorder. Thanks to the omnipresence of the Internet, today’s monitoring of facilities can be done without any problems via a tablet or a mobile phone from every location in the world with simple free applications.
Various video surveillance technologies are currently available on the market (classical, hybrid, AHD, IP, video analytics) and their proper selection can protect facilities of different sizes and purposes. Development and application of new technologies such as high resolution images, different types of lenses depending on the function and desired camera field of view, manageability and connection with motion detectors, protective and anti-vandal enclosures and supplementation of IR icons for monitoring outdoor areas in night conditions, transfer of images to a remote IP or GPRS connection, etc., allow for various settings and adjustments to specific user needs and wishes.
The number of conventional analogue systems is till the largest, and due to significantly more features and functions, a large number of users implements and plans video surveillance based on IP technology. High resolution megapixel cameras provide superior image quality in extremely demanding conditions (night recording, strong scene light changes, high backlight, fast movement of people in frame) and subsequent enhancement of details.
Video analytics allow alarm signaling in various situations (movement of persons in a prohibited zone, vehicles driving in wrong direction, abandoned objects) and many other functions such as face recognition, license plate registration, traffic control and regulation, integration with POS and ATMs.
It is also possible to combine classic and IP elements into a hybrid video surveillance system that is particularly suitable when objects already have a classic, functioning system that they want to expand with additional features and capabilities.
Video integration with an anti-burglary system and external protection enables the video verification of the alarm signal, which reduces the costs for security interventions, and integration with access control facilitates daily operations in facilities that are protected from multiple technical protection systems.