Photos: Checking your digits, irises at the airport

One area where the miSense system does allow passengers to beat the queues is immigration. Only preregistered passengers with the miSense card are able to use the automated barrier at passport control in immigration. The card and right index finger are scanned at the gate and the barrier opens if the two match.

Cyrille Bataller, biometric specialist at Accenture, said that biometrics aren't perfect, but the automated checks have been fine-tuned so that there is only a 0.1 percent chance that the machine will either fail to recognize a legitimate passenger or produce a false match.

Accenture is one of the tech companies behind the project. Other tech companies involved in the miSense project include IER, Raytheon Systems, Sagem Defense Securite and airline IT body SITA.