Communications of the ACM
Readying Iris Recognition For Prime Time
A study by the U.S. National Institute of Standards and Technology says iris scans remain highly reliable over time, despite changes over time due to aging-related pupil dilation.
Credit: Press Association
In a report vetting a study of 217 subjects over three years that suggested recognition of subjects' irises would become increasingly difficult over time due to aging-related pupil dilation, a U.S. National Institute of Standards and Technology (NIST) team led by Patrick Grother said iris scans remain highly reliable over time despite these changes.
"Dilation is something that algorithm developers have known about since day one," says Grother, head of NIST's biometric testing project. "It certainly changes the similarity score, but not to the point where errors are introduced."
Despite its accuracy, Grother and other experts say factors including size and cost are likely to hamper widespread implementation of iris scans for authentication purposes. Current iris scan technology is mostly used to control physical access in facilities, and utilize large and expensive camera systems that cannot yet feasibly be integrated into consumer and enterprise electronics.
Iris ID's Mohammad Murad says iris cameras in consumer devices are at least three to five years off.
Meanwhile, Marios Savvides at Carnegie Mellon University's CyLab Biometric Center says adoption of iris and other biometric technologies is inevitable as users become frustrated with other authentication schemes. "People's preference for user devices will break the barrier and drive the cost down and get it working," Savvides says.
From GovInfoSecurity.com
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