Facial recognition tech helping place faces from the past Credit: Allied Market ResearchIDG
Business Management

Facial recognition tech helping place faces from the past

The ability of the likes of Facebook to find our faces and recognise friends in embarrassing photos taken ten years ago is familiar to most of us.

Typically the technology works by mapping a face's geometry; the relative positions and distances between the eyes, nose, brow, mouth and chin. Up to 70 ‘facial landmarks' can be used to give a face its ‘facial signature' and distinguish it from others.

This signature can be used to find other faces in a database with very similar signatures, and so identify your face in long-forgotten pics or video footage.

In recent years, thanks in part to more readily available facial recognition capabilities offered by major cloud providers, the same technique is being applied to identify people not just in photos from our college days, but from as far back as the 1860s.

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