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Make fingerprint film laid off to internal fingerprinting
This technology was developed jointly by Bit Flow and the Langevin Institute in Paris, France. It can quickly and accurately capture the user's "internal fingerprints." Similar to finger surface fingerprinting, the "internal fingerprint" has the same fingerprint image characteristics but is located 0.5 mm below the finger skin. In addition, this system can also scan the sweat glands on the finger to further enhance the recognition ability.
The sensor's engineering developers are the Longwig Institute postdoctoral researcher Egidijus Auksorius and scientific instrument professor Claude Boccara, based on full-field optical coherence. Tomography (FF-OCT). Unlike standard optical coherence tomography (OCT), which requires 3D data and lasers, the FF-OCT uses a 2D detector, which makes it easier to use, faster, and lower cost.
With this technique, images of internal fingerprints can be obtained in 1 second, making them ideal for fingerprint scanners. In use, the scanner analyzes different coherent patterns between the reflected light of the target object (eg, finger) and the reference light source, thereby identifying fingerprints and sweat glands on the finger. By referring to the light source, scientists can accurately read and draw out different fingerprint patterns.
According to a submission provided by Bit Flow, a study conducted by the US Department of Homeland Security found that wearing fake fingerprints can deceive traditional fingerprint scanners in 80% of cases, and the company’s technology can greatly help in this area. .
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Technological dynamics A variety of corporate attendance methods, fingerprint identification attendance is also a common one, but it has many drawbacks. The use of fingerprint membranes instead of the opening of the site leaves the business managers in trouble. In addition, our fingerprints are always inadvertently revealed, and it is dangerous to use them as a fingerprint film. Fortunately, it was reported that machine vision company Bit Flow has developed a revolutionary fingerprint scanning tool that can distinguish between human fingerprints and fake fingerprints. The new technology of Bit Flow no longer depends on the scanning of the fingerprint image, but will deeply analyze the features inside the user's finger.