Technology.org November 10, 2020
Biometric methods based on finger veins, as compared to face and fingerprints, obviate privacy concerns and degradation due to wear, age, and obscuration. However, they are 2D and are fundamentally limited by conventional imaging and tissue-light scattering. A team of researchers in the US (SUNY Buffalo, industry) has developed a method of 3D finger vein biometric authentication based on photoacoustic tomography. Using a compact photoacoustic tomography setup and a novel recognition algorithm, they demonstrated the advantages of the 3D biometrics method. Tests of the method on people showed that it can correctly accept or reject an identity 99% of the time. Because the technique detects invisible features in 3D, it could be used to enable better authentication techniques to protect personnel data and sensitive documents…read more. Open Access TECHNICAL ARTICLEÂ
Flow diagram of the 3D Finger sensing system. Credit: Applied Optics Vol. 59, Issue 28, pp. 8751-8758 (2020)