For secure identification, the wave of the future is finger veins. Apparently, no two people have the same 3D finger vein pattern, and researchers from the University of Buffalo, NY, have created on a 3D finger vein biometric authentication method. Their findings are published in Applied Optics.
Lead study author Jun Xia of the University at Buffalo said:
“Faking a vein biometric authentication would require creating an exact 3D replica of a person’s finger veins, which is basically not possible.”
While 2D finger vein scans have limitations, 3D scans, done by photoacoustic tomography, work better. For this imaging technique, laser light laser illuminates the finger. Where it hits a vein, it creates a sound that the system detects ultrasonically and uses to construct a 3D image.
The finger vein identification device combines light with acoustic beams. To use the device, the hand is placed on an imaging window, similar to what is used for a fingerprint scanner.
In tests of 36 people (8 fingers each), the scanner was correct 99% of the time. The machine performed better when multiple fingers were placed on the scanner platform. The researchers now plan to miniaturize the device, in hopes that it can be used in banks or military bases or even in personal electronics. They also hope to decrease the imaging time to under a second.
Disclaimer: This article does not provide medical advice. Do not take action based solely on this article and always consult with an appropriate healthcare professional. This article is purely for informational purposes.