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Technology

Merging photos could improve security screening

By Mason Inman

30 January 2008

Video: Watch a video of the new technique in action

IMAGES made by merging several photos of the same face are easier for computer software to recognise than ordinary snapshots. This finding suggests that using “averaged” faces on passports might help security systems make better matches of people against criminal watch lists.

Psychologists Rob Jenkins and Mike Burton of the University of Glasgow in the UK have found that people are better at recognising faces from photos that have been averaged than from individual photos. They suggest that this is because…

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