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Compared with fingerprint recognition, iris recognition is more complex than texture, which greatly increases security and accuracy. More importantly, its verification mechanism needs living support. This allows criminals to copy the iris texture to pass the verification. The possibility is almost zero, in addition, even if the lawless elements remove the victim's eyes it cannot be verified.
Is fingerprint recognition relatively insignificant in comparison to iris recognition? Of course, fingerprint recognition has become the most popular biometric application in the current mobile phone industry. These are three reasons. First of all, its security has certain guarantees. Compared with traditional password input methods, its safety and convenience are self-evident; secondly, its implementation is technically simpler, that is, it has a low threshold. Facilitate large-scale production; Finally, of course, its price is more suitable, which guarantees that its blessing will not substantially increase the price of mobile phones.
Although iris recognition is far more powerful than fingerprint recognition in terms of security and stability, it has not been popularized in mobile phones so far. The author believes that it is mainly due to the difficulty and price of technology implementation, and of course both. It is complementary.
It is precisely because of the more complex texture of the iris, which also makes the iris recognition technology need to extract more effective unit reading points in the process of realization (as mentioned above, iris recognition generally needs to take 266 units of reading Take points, and other biological identification is generally 13 to 16). This is actually a blade sword. It raises the recognition accuracy rate, and puts forward higher requirements on the complexity of the algorithm and execution efficiency. Said earlier in the software development needs to invest more costs. In addition, on the hardware, it also needs the cooperation of the camera to achieve the iris image acquisition and extraction.
In fact, it is these huge resources invested in hardware and software that make its price advantage in relative fingerprint recognition completely absent. It should be said that the realization of iris recognition technology is not difficult, it is difficult in such a compact mobile phone body Loaded and controlled at a reasonable price range, this is the problem that the industry urgently needs to solve.
Of course, any kind of technology has its limitations, and iris recognition is no exception. First of all, the realization of iris recognition has a certain stress on the light, if the user wears glasses or a beautiful pupil, the iris will be difficult to identify and extract; Second, the recognition and extraction of the iris is also required in the distance, too far or too Nearly all influence.
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The advantages and disadvantages of fingerprint recognition and iris recognition and their applications
People's fingerprints tend to wear out, which affects the recognition, and even a certain percentage of people may appear. Because of the shallow lines of their fingerprints, they cannot use the fingerprint recognition function. In addition, because the current fingerprint recognition technology does not require living support, there is the possibility of theft. The criminals can fool the fingerprint recognition verification mechanism by copying the texture of the finger, and even more tolerant, some criminals may even The victim's finger is directly cut off to complete fingerprint authentication.