On modern smartphones for a long timebiometric user identification is used either by fingerprints or face recognition. The invention of a new method for 3D modeling of finger veins using light and acoustic characteristics could revolutionize the development of smartphone security systems in the near future.
New technique developed at the University of Buffalo(New York, USA). A group of scientists have proposed a method of 3D biometric finger authentication, which provides ideal protection against unauthorized access, using falsification of personal data using dummies or photographs.
The new technique allows, in fact, to identifyinvisible objects and provide a high degree of protection of personal data. To form a volumetric model of the circulatory system of the fingertips, photoacoustic tomography is used - an imaging method that combines light and sound.
Light from a low-power laser in the first stageilluminates the fingers, and when it hits the veins, a sound is created, which is then detected by an ultrasonic sensor. The data obtained is used to form a three-dimensional image of the veins. This decision could change the way manufacturers approach smartphone security in the future. All that remains is to create a system compact enough to fit into smartphones.