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AI clears up images of fingerprints to help with identification

By Matthew Sparkes

28 June 2021

New Scientist. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

Blurred fingerprints can be hard to identify

Shutterstock/Bushko Oleksandr

An AI that can repair blurred or distorted images of fingerprints lifted from crime scenes could make identifying people easier, but it is unclear whether such evidence would stand up in court.

Amol Joshi at West Virginia University and his colleagues trained an AI to cancel out distortions of fingerprints caused by incorrect camera focusing and other errors.

The team took a data set of 15,860 clean fingerprint images from 250 subjects and created blurred versions of them synthetically at varying levels of distortion. Almost 14,000 of these pairs of images…

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