The heart does not deceive. Scientists come up with new methods of personal identification

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As soon as scientists and engineers come up with a new way of identifying individuals, the emergence of algorithms for hacking is a matter of time. For example, in September 2017, Apple introduced the iPhone X, where a Face ID scanner was installed instead of a fingerprint scanner. A week after the start of sales, cunning guys from Vietnam showed how to deceive him. To do this, they printed on the 3D-printer a mask, and not very similar to the face of the user. Voila – smartphone unlocked!

Is it risky to hand over biometric data in a bank?

AiF.ru appreciated new identification methods that can be used in access protection systems and forensics.

Heartbeat

MIT Technology Review, published by the Massachusetts Institute of Technology, wrote about the new Pentagon design – the Jetson identification system. It uses an infrared laser, which, from a distance of 200 meters, reads heart rate characteristics and compares them with those in the base. These indicators, the developers claim, are individual for each person. Moreover, there are already user devices that provide access by cardioparameters. For example, a bracelet that takes readings of the heart of its owner forms a unique ID and connects all compatible devices via Bluetooth. It was released by a Canadian company.

Of course, the device created by the US military is much more complicated. The laser picks up vibrations of a person’s skin as a result of a heartbeat, and he is able to remove these characteristics even through his clothes (albeit summer clothes). Recognition takes about 30 seconds, accuracy – more than 95%. Developers promise to increase this parameter over time, as well as the distance the device can work with.

The authors emphasize that their technology is more reliable than scanning faces or papillary lines on fingers. After all, it is impossible to “fake” another's heart rate. And the laser scanner will be used not only by the military and special services – with its help, doctors will be able to remotely monitor the health of patients, identifying them, for example, arrhythmia.

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Vein pattern

Another unique anatomical feature is the location of the blood vessels on the face or hands. Technology has good prospects. In 2013, Google patented a device that recognizes the pattern of the user's eye veins. Then Samsung received a patent for a watch that can identify a person by the pattern of the veins on her arm. And a year ago Apple joined its competitors.

Followers of Steve Jobs have chosen to scan the facial veins. The system will receive their drawing using infrared radiation. According to the authors, the accuracy of her work should be very high, because the vein pattern is complex and, unlike fingerprints, it is harder to fake: the blood vessels are under the skin. And their location is truly unique.

In the future, it is planned to build in emitters and receivers of infrared waves. A scanned vein pattern will be compared with the device's blood vessel map to determine if access can be opened.

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By the way, ready-made solutions using the same technology have long been used in the market of electronic security systems. With their help, access to premises with increased security requirements is provided. According to experts, it is the recognition by the veins of the hand (for example, the palm) is the most optimal method of personal identification. It is reliable, convenient and hygienic.

Manner of walking

The biometric data, which can be used as an identifier, include the human gait. If we analyze it in slow-motion recording, we can see that this is an extremely complex process, with many parameters, spatial and temporal. These are the points of contact of the foot with the surface, the angle of its turn, the stride length, the duration of its various phases and much more.

Last year, a team of scientists from the UK and Spain offered to use a neural network, which, after self-study, will be able to recognize a person according to the spatial and temporal characteristics of his trace. The researchers promised almost one hundred percent accuracy of the method. For its development and training of the neural network, a database was compiled of 20 thousand images of human traces obtained using 88 piezoelectric sensors. 120 volunteers, wearing comfortable shoes for themselves, walked with a natural gait, and the sensors measured the pressure of the foot at various points. After that, individual gait maps were created for each subject.

However, in China, which is famous for the fact that it universally implements biometric identification systems in its cities, this method is already close to practical application. The local company Watrix has tested its technology that recognizes people on the street in a walking manner. And its head, Huang Yongzhen, said that the gaps that the face recognition system had long been implemented in the country will now be closed. After all, if a passerby closes his face, he cannot change his gait so that it looks natural.

Driver, introduce yourself. Cars recognize owners by faces and fingerprints.

Brain areas

Unique as fingerprints are the fluctuations in the activity of various brain structures. Neuroscientists believe that they can be scanned and create a unique profile of each person. A report on the work of scientists from the University of Glasgow was published in the journal PLoS Biology.

The researchers experimented with a group of 22 volunteers, fixing the activity of individual parts of their brain at rest. Based on the data obtained, the authors built “spectral imprints” of various brain structures that differ in cell composition, tissue architecture, connections to other brain areas, etc. Neurophysiologists showed that the spectrum of activity for each of these structures is unique.

The findings of the British neuroscientists are only useful for further scientific research so far: they will form the basis of new methods of observing and stimulating the brain. But it is possible that someday scanners that read electrical activity from our skull box will appear at the entrance to office centers.

. (tagsToTranslate) personal identification (t) scientific research (t) biometric data

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