Facial recognition is becoming more common. So, how does the technology work? And where else is it being used?

Essentially, a facial recognition system is only as good as the data that has been used to train it. Researchers in scientific labs can get the technology to be highly accurate.

There are serious privacy concerns as government agencies and companies are more able to track individuals through their communities, and even around the world.

San Francisco is the first major city to ban facial recognition technology-- but how does the tech actually work?

You can opt out of facial recognition in some cases, but the history and future of the technology suggest we’ll need bigger solutions to its privacy problems.

There are also fears of people using facial recognition to engage in online harassment or even real-world stalking. As facial recognition becomes more common, we must know how it works.

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Investigators had been able to identify David Baril by linking a subway surveillance photo with an old mug shot through facial recognition software. So, how does the technology work?

San Francisco is the first major city to ban facial recognition technology-- but how does the tech actually work?

How does facial recognition technology work? In this hi-tech age, your face is increasingly becoming a digital ID for authenticating who you are online. We look at how facial recognition works.