use of video cameras to transmit a signal to a specific place on a limited set of monitors
Closed-circuit television uses video cameras to send footage directly to monitors in a specific location, rather than broadcasting it widely like traditional television. This setup is useful because it allows people to monitor a particular area or building while controlling exactly who can see the video feed.
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Surveillance cameras on the corner of a building Closed-circuit television (CCTV), also known as video surveillance, is the use of closed-circuit television cameras to transmit a signal to a specific place on a limited set of monitors. It differs from broadcast television in that the signal is not openly transmitted, though it may employ point-to-point, point-to-multipoint (P2MP), or mesh wired or wireless links. Even though almost all video cameras fit this definition, the term is most often applied to those used for surveillance in areas that require additional security or ongoing monitoring (videotelephony is seldom called "CCTV").
The deployment of this technology has facilitated significant growth in state surveillance, a substantial rise in methods of advanced social monitoring and control, and a host of crime prevention measures throughout the world. Though surveillance of the public using CCTV cameras is common in many areas around the world, video surveillance has generated significant debate about balancing its use with individuals' right to privacy even when in public.
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