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Technology

Overly smooth eyebrows could give away fake passport photos

A composite image made from two faces can fool humans and AI, but unusually smooth eyebrows, which are an effect of image morphing, provide a way to detect them

By Matthew Sparkes

10 November 2023

The edges of individual eyebrow hairs, which are visible on a normal photo like this one, are lost when two photos are merged together

Jurgen Falchle / Alamy

Suspiciously smooth eyebrows could be a giveaway for criminals who try to evade artificial intelligence-powered border crossings by using passports with doctored images.

²¹²Ô»åÌý at the Norwegian University of Science and Technology say the increased use of automatic face recognition at border crossings means it is often an AI, rather than a person, that checks whether a traveller’s face matches the identity documents they carry.

Criminals can take…

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