What is facial recognition - and how do police use it?
by Alex Hern Technology editor from on (#4YCHQ)
The controversial technology is developing rapidly and its use spreading more widely
This is a catch-all term for any technology that involves cataloguing and recognising human faces, typically by recording the unique ratios between an individual's facial features, such as eyes, nose and mouth. The technology can be applied to everything from emotion tracking to animation, but the most controversial involve using facial features as biometric identifiers, that is, to identify individuals based on just a photo or video of their face.
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