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There are four types of fingerprint scanners: [7] optical scanners, capacitance scanners, ultrasonic scanners, and thermal scanners. The basic function of every type of scanner is to obtain an image of a person's fingerprint and find a match for it in its database. The measure of the fingerprint image quality is in dots per inch (DPI). [8]
Full body scanner in millimeter wave scanners technique at Cologne Bonn Airport Image from an active millimeter wave body scanner. A full-body scanner is a device that detects objects on or inside a person's body for security screening purposes, without physically removing clothes or making physical contact.
The Dubai police use ANPR cameras to monitor vehicles in front and either side of the patrol car. A Merseyside Police car equipped with mobile ANPR During the 1990s, significant advances in technology took automatic number-plate recognition (ANPR) systems from limited expensive, hard to set up, fixed based applications to simple "point and ...
Two police detectives are on stakeout watching a waitress whose ex-boyfriend has escaped from prison. Surveillance: 2008: Two FBI agents hunting a serial killer come across a mass shooting in a small town, and they use video surveillance to uncover the truth of the shooting. [49] Surveillance 24/7: 2007
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A police officer wearing a body camera on his uniform. In policing equipment, a police body camera or wearable camera, also known as body worn video (BWV), body-worn camera (BWC), or body camera, is a wearable audio, video, or photographic recording system used by police to record events in which law enforcement officers are involved, from the perspective of the officer wearing it.
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