That's not my iris! What happens when biometrics are disputed…

01/10/13

Biometric technology is becoming devastatingly accurate at matching a sample from within databases of millions of possible candidates. But what happens if that matching process is disputed? What if a justice system calls for a higher level of proof than just relying on a sophisticated algorithm's say so?

With fingerprints the process is well established. Fingerprint database searches still require a human to make a final decision from a set of potential matches. But what about other biometrics used in large-scale matching, such as iris recognition? Can human examiners be expected to provide decisions in these cases?

Researchers from the Department of Computer Science and Engineering at the University of Notre Dame have performed some fascinating research into just this area.

In a paper just released, the team focused on the question of how accurately a human examiner can determine if two iris images come from the same iris.

Although automated iris recognition technology is already very accurate and continues to improve, say the researchers, there will always be some small rate of false matches and false nonmatches. In the case of disputed results, human examiners may be called upon to make a final decision. In addition, the American justice system would likely require some level of human expert verification of a match in order to use biometric information in a courtroom setting.

Results suggest that novice examiners can readily achieve accuracy exceeding 90% and can exceed 96% when they judge their decision as “certain”. Results also suggest that examiners may be able to improve their accuracy with experience.

Professor Kevin W. Bowyer, Chair, Department of Computer Science and Engineering, University of Notre Dame told Planet Biometrics: "Humans aren't as good as the Daugman algorithm, of course. But I think it will be important that there is a human check on computer accuracy in disputed cases."

One interesting possibility is that human examiners could be making different sorts of errors when compared with than automated matching. Therefore, say the researchers, hybrid matching may achieve greater accuracy than either alone.

Subscribe to our free newsletter
Follow us on Twitter
Join us on LinkedIn

Article Comments

No reviews have been submitted

Please add a comment on this article from the Add Comment below.

Please Login or Register.

Login or Register

This article appears in :-

Examiners performed well at distinguishing pairs of irises
Examiners performed well at distinguishing pairs of irises

Other Site News

UK Biometrics Commissioner wants simpler process for early deletion of DNA and fingerprints 24 October 2014

Commissioner says it would be desirable to have an early deletion process which is significantly less restrictive than that which is proposed in the draft Guidance

Apple and Samsung to propel fingerprint sensor adoption to 1.4 billion units by 2020 24 October 2014

Fingerprint sensors dominate the surge in sensor revenue expected between now and 2020 with Apple and Samsung leading the way.

UK gov introduces biometric signature capture at job centres 24 October 2014

The UK government is introducing new digital technology at job centres across the country, including biometric signature capture.

VAMPIRE device brings real-time fingerprint analysis to incident scenes 24 October 2014

Booz Allen has announced a new device designed to help law enforcement and the military conduct immediate fingerprint analysis at an incident scene

Biometrics Institute proposes biometric trust mark 24 October 2014

The Biometrics Institute has unveiled its proposals for a ‘trust mark’ system to boost consumer and public confidence in systems using biometric technology.

More articles >>

SDW conference and connect:ID news

connect:ID 2014 in stats

The overwhelming success of the inaugural connect:ID exhibition and conference at the Ronald Reagan Center in Washington, DC exceeded expectations for event hosts - the IBIA and Science Media Partners.

Plans underway for connect:ID 2015

Preparations are well underway for connect:ID 2015

Share |

Sponsored Links

id3 Technologies Id3 Technologies is a biometrics expert company providing winning awards algorithms, biometrics devices and ID systems. Established since 1990 and originally involved in electronics, id3 is a biometrics veteran developing innovative, secure and convenient solutions like match on card, multimodal enrolment, AFIS and ABIS.
Speed Identity Speed Identity is an innovative Swedish technology company supplying integrated biometric data capture solutions. The new Speed Capture G3 is the first cross-functional form factor.