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  2. Closed-circuit television - Wikipedia

    en.wikipedia.org/wiki/Closed-circuit_television

    Under the Homeland Security Grant Program, government grants are available for cities to install surveillance camera networks. [104] [105] [106] In 2018, there are approximately 70 million surveillance cameras in the United States. [107]

  3. Lawn-sign wars: US voters use trackers, cameras to deter ...

    www.aol.com/news/lawn-sign-wars-us-voters...

    Republican signs have been disappearing again, though surveillance cameras have captured a different suspect – a school bus driver. Panico says he plans to speak to the man's employer.

  4. Closed-circuit television camera - Wikipedia

    en.wikipedia.org/wiki/Closed-circuit_television...

    Vandal dome-style camera. A closed-circuit television camera is a type of surveillance camera that transmits video signals to a specific set of monitors or video recording devices, rather than broadcasting the video over public airwaves.

  5. ISO 7001 - Wikipedia

    en.wikipedia.org/wiki/ISO_7001

    No colours are specified in ISO 7001, with the only guidance being to ensure clear contrast between the symbol and the sign background, as well as the environment the sign is in. There is a clear recommendation against using colors specified in ISO 3864, due to possible confusion with safety signage using those colors. Of explicit concern is ...

  6. Surveillance - Wikipedia

    en.wikipedia.org/wiki/Surveillance

    A surveillance camera in Cairns, Queensland Surveillance cameras such as these are installed by the millions in many countries, and are nowadays monitored by automated computer programs instead of humans. Surveillance cameras, or security cameras, are video cameras used for the purpose of observing an area.

  7. Police surveillance in New York City - Wikipedia

    en.wikipedia.org/wiki/Police_surveillance_in_New...

    Following the September 11 attacks, the NYPD developed a large and sophisticated array of surveillance technologies, generating large collections of data including billions of license plate readings and weeks of security footage from thousands of cameras. This data is now used in the department's day-to-day operations, from counter-terrorism ...

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