Mobile technology is crying out for better user authentication. Fingerprints would seem like a good match, but there's a hardware chicken-and-egg problem: no fingerprint sensor hardware means no apps and no apps means no manufacturer has decided (long-term) to drive up the cost of their handset to provide a feature few may use.
That means biometric app developers interested in verification using mobile devices have concentrated on modalities that can use the sensors that are already ubiquitous in mobile hardware.
A phone without a microphone isn't a phone anymore so the developers of voice biometrics are in pretty good shape. And though a camera isn't a strictly necessary feature on a mobile device, they all seem to have them. That invites facial recognition, and eye-based biometrics developers into the mobile world.
All three (face, eye, voice) face challenges.
Scan Eyes to unlock spartphones (PSFK)
If I'm reading this article correctly, or more accurately making the correct inference from the picture that accompanies it*, EyeVerify seems to be side-stepping the challenges associated with iris biometrics and camera resolution by switching to an analysis of sclera vasculation — the veins on the white part — for mobile verification.
That's pretty cool.
See also:
Mobile Devices and Biometric Modalities
* According to the EyeVerify site, that was the correct inference.
