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Стартап
DateDate: 6-07-2019, 06:18

Biometrics is developing in leaps and bounds. It seems that only recently began to use a fingerprint to unlock smartphones, as has already appeared facial recognition technology. What will be the next step?
Recently, the Pentagon announced a new development for personal identification. Researchers and engineers working for the US Department of Defense created a prototype device using an infrared laser. With it, you can "recognize" a person by his heartbeat.
The device was called Jetson. Its principle of operation is based on laser vibrometry. The device detects micromovements of the surface of the human body, which creates the beating of his heart.
This is a very promising approach. The fact is that each of us has unique features of the heartbeat, the so-called cardiac signature. It is unchangeable and impossible to fake.
So far, the most common method of biometric identification at a distance has been face recognition. The main disadvantage of this method is the need for a good frontal view. Catching the right angle is not so easy (especially if the drone is used for identification).
In addition, face recognition is not the most reliable way. A beard, sunglasses or, say, scarves and kerchiefs are easily “confused” by the system.
The new promising device "reads" a person's heartbeat and, comparing the figures with the database, identifies the person with 95% accuracy.
However, while the system works only under strictly defined conditions. Thus, a laser, “triggered” already at an impressive distance of 200 meters, can fix the heart rate only through thin material (for example, a T-shirt). More dense layers of clothing interfere with the operation of the device.
In addition, the system takes about 30 seconds to receive data. This means that the object must remain motionless during this time.
However, American experts believe that it is quite possible to reduce the response time of the mechanism to five seconds or even less.
Despite the "capriciousness" of the device, the method based on the use of a laser has a huge and incontestable advantage: the system cannot be deceived, such as, for example, face or fingerprint recognition technology.
"Compared to the face-based approach, cardiac biometrics is more reliable and can achieve 98% accuracy," said one of the developers of the new device Wenyao Xu from the University of Buffalo.
The Pentagon is considering several options for applying the new laser detector in the future. This is the fight against terrorism, and military objectives, and improving the work of the police.
In addition, the technology may be embedded in mobile devices. It is possible that in everyday medical practice such laser technology will be a good help. For example, it will provide an opportunity to conduct research of the heart, without resorting to a traditional stethoscope or an electrocardiograph.
Another area of application Jetson experts see security systems at the entrance to protected areas of enterprises and industries. So experts hope to significantly simplify the control system.
By the way, the authors of "Vesti.Nauka" (nauka.vesti.ru) previously told about other methods of personal identification and the fight against them.
We will report on the latest discoveries and inventions, and further, but for now we offer to find out how artificial intelligence taught us to distinguish between men and women by a smile and even determine their sexual orientation from a photo.





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