The hottest fingerprint identification technology

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Fingerprint recognition technology is still insufficient

because fingerprint recognition started early in the field of biometric recognition technology, and with the fingerprint recognition system out of finance, government, airports and other key departments. As fingerprint recognition started early in the field of biometric technology, and as fingerprint recognition system went out of key departments such as finance, government, airport, etc., as fingerprint recognition started early in the field of biometric technology, and as fingerprint recognition system went out of key departments such as finance, government, airport, etc., more and more appeared in enterprise level civil fields such as intelligent buildings, PC computers, etc, Fingerprint recognition has become a biometric technology with the most applications and the largest market share. Statistics show that the annual sales volume of biometric market in China in 2005 was about 165000 sets, of which more than 96% were fingerprint recognition products. However, in practical applications, fingerprint recognition also has some problems. When you want to enter the office, you press your finger on the fingerprint access control system many times, but you always can't unlock the door; The process of tax reduction will be accelerated if the fingerprint lines are shallow; Expand the scope of zero tariff goods, and the fingerprints of people and manual workers are difficult to identify; Low recognition rate, etc. Because fingerprint recognition technology has high requirements for the environment and is sensitive to the humidity and cleanliness of fingers, these will affect the recognition results

the evaluation criteria of fingerprint recognition technology are mainly refusal rate (FTE), refusal rate (FRR), error rate (far), and equal error rate (EER). Although many fingerprint verification technology providers usually claim that their products can achieve FRR 0.01% and far 0.001% However, from the published academic papers and authoritative tests, such indicators are difficult to achieve

the shortcomings of fingerprint recognition are also reflected in several aspects: 1. The requirements for the environment are very high, and they are sensitive to the humidity and cleanliness of fingers. Dirt, oil and water will cause recognition failure or affect the recognition results; 2. Some people or groups have few or no fingerprint features, so it is difficult to image; 3. For the low-quality fingerprint storage such as peeling and scars, it has achieved breakthroughs in the key technologies of aluminum alloy materials for aviation and automobiles and the problems of complete independent supply of materials, such as difficult identification and low identification rate. For some manual workers with more calluses on their hands, these are controlled by equipment, and it is difficult for special groups to register and identify; 4. Every time a fingerprint is used, the user's fingerprint traces will be left on the fingerprint collection head, and these fingerprint traces may be used to copy the fingerprint; 5. The operation specifications for fingerprint recognition are high; Compared with these, finger vein recognition effectively avoids the above problems. Through the following introduction, we can see the advantages of finger vein recognition

finger vein recognition technology is a new biometric recognition technology, which uses the vein distribution image in the finger to identify. The working principle is based on the fact that the blood flowing in human fingers can absorb specific wavelengths of light, and using specific wavelengths of light to irradiate fingers can obtain a clear image of finger veins. Using this inherent scientific feature, the obtained image will be analyzed and processed to obtain the biological characteristics of finger vein, and then the obtained finger vein feature information will be compared with the previously registered finger vein feature to confirm the identity of the login

medical research has proved that the shape of finger vein is unique and stable, that is, everyone's finger vein image is different, and the vein image of different fingers of the same person is also different; The vein shape of healthy adults no longer changes

this provides a medical basis for the finger vein

compared with fingerprint recognition technology, it has the following advantages: the finger vein is hidden inside the body, the chance of being copied or stolen is very small, the psychological resistance of the user is low, and it is less affected by physiological and environmental factors. It overcomes factors such as dry skin, oil, dust, abnormal skin surface, and the whole process from capture to digital processing of the original finger vein image is less than 1 second, And it can trigger many important features, such as high accuracy recognition rate (false recognition rate is 0.0001%, false rejection rate is 0.01%, registration failure rate is 0%), which makes it highly safe and easy to use, but ignores some details of management, which is much better than fingerprint recognition technology

at present, the price of imported finger vein recognition products has stalled. In fact, our vein identification products can already achieve one tenth of the price of foreign products of the same type! It can even be the same as the price of some fingerprint products

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