According to the latest exposure information, Samsung Galaxy Note7 should be ready. In addition to the continuous consolidation of traditional advantages such as curved screen and S Pen, the newly added iris recognition has also become a new function that has attracted much attention. Reminiscent of the scene of unlocking your eyes in a science fiction movie, and this scene will soon be realized on your mobile phone, it is inevitable that you will be a little excited. So what kind of technology is iris recognition and what can it bring us in the future? Let's take a look at this cool black technology.
What is iris recognition?
Before talking about specific iris recognition, we must first understand what iris is. Simply put, the human eye structure consists of three parts: sclera, iris and pupil. Iris is an annular part between the black pupil and the white sclera, and it is a dark part around the pupil in the eyeball. It contains a lot of unique features, including staggered spots, filaments, crowns, stripes and other details, and its complexity can be seen.
The complexity of iris can be seen.
Moreover, the iris will remain unchanged after the formation of fetal development stage, and common ophthalmic diseases will not damage the iris, which directly determines the uniqueness of iris characteristics. Based on this, there is a one-to-one relationship between iris and everyone, and iris recognition technology is developed to identify people by scanning iris. Studies have shown that the accuracy of iris recognition is 6.5438+0 million times that of fingerprint recognition and 6.5438+0 million times that of face recognition. It is widely regarded as the most promising biometric authentication technology in the 265.438+0 century, and has played an important role in security, national defense, e-commerce and other fields.
The first iris recognition mobile phone is actually it.
With the maturity of technology, iris recognition algorithm and image acquisition module can be easily implemented on mobile terminals. Today, with more and more attention paid to information security, the emergence of iris recognition mobile phones is logical. However, the upcoming Samsung Note7 is not the first mobile phone equipped with iris recognition. In 20 15, Fujitsu designed and manufactured ARROWS NX F-04G, which is the first smart phone with iris recognition function. Later, Microsoft's Lumia 950XL also added the Windows Hello iris scanning unlock function, but this model was affected by the dead mobile ecology of Windows, and the iris recognition time was too long (about 2 seconds), which did not cause much wind and waves.
▲ The first mobile phone equipped with iris recognition
However, some domestic manufacturers are also making a fuss about brushing their eyes. Mobile phones produced by ZTE and vivo have added eye pattern recognition function, claiming to be safer. In fact, there is a huge difference between eye pattern recognition and iris recognition. The security level and recognition rate are lower than iris recognition, but eye pattern recognition is just an edge ball for iris recognition.
This time Samsung Note7 is a bit different.
It should be said that there is a precedent for the application of iris recognition in mobile phones, but for various reasons, it has not caused a sensation. However, this time Samsung Note7 is different. As soon as the news came out, it caused a lot of heated discussions, and even the company stocks related to iris recognition were all red. On the one hand, this is because of Samsung's appeal in the industry, on the other hand, the iris recognition of Samsung Note7 is really different.
▲ Exposed patent documents
According to an exposed patent document of iris scanning in Samsung's name, Samsung Note7 will be equipped with a specific iris recognition system, which consists of three parts. First, the mobile phone will use an ordinary front camera to determine the user's face, and then a specific light source will emit infrared rays. The camera specialized in iris scanning will perceive iris features through infrared rays, thus completing the functions of scanning and recognition.
In specific applications, a video circulating on the Internet shows that the iris recognition of Samsung Note7 only supports mobile phone unlocking at present, and the distance between the eyes and the mobile phone should be kept at 25-35 cm during use, and the unlocking speed is also quite fast, which can be almost completed at the same time when the unlocking menu is brought up by sliding upwards, which has obviously improved the recognition experience compared with the existing products.
Iris recognition actually hurts eyes?
The iris recognition system of Samsung Note7 mentioned just now includes a specific light source to emit infrared auxiliary scanning, which can ensure the normal use of iris recognition at night. So some people can't help but worry, since there are extra infrared rays involved, will iris recognition also cause harm to the eyes? Here, let's talk in detail. Generally, the infrared wavelength used for iris recognition is between 700 and 900 nanometers, and its energy is small, which is lower than the international safety standard. It is safe to use at a certain distance, but it does not rule out that some sensitive physique will have abnormal reactions, and special people should also pay attention.
In addition, because of the optical characteristics of glasses, it will affect the scanning of iris and may lead to the failure of iris recognition, so it is not recommended to wear glasses to use iris recognition.
Iris recognition replaces fingerprint recognition?
Due to the influence of Samsung, iris recognition has once again been pushed to the center of the stage, making its industrial chain widely concerned, and its future development on the mobile side is also generally optimistic. In the past, Apple introduced Touch ID, and the discussion about iris recognition will soon replace fingerprint recognition. The author believes that iris recognition should be treated rationally, which is just another choice for mobile security authentication. As far as experience is concerned, fingerprint identification has been popularized and penetrated into privacy encryption, payment and other scenes, which is very convenient to use. Especially in the unlocking scene, when we take out the mobile phone from our pocket, our fingers are undoubtedly the first choice for unlocking, and our eyes only have a chance to unlock when facing the mobile phone, so the advantages of fingerprint identification are still obvious.
However, this does not mean that iris recognition must be at a disadvantage. As mentioned at the beginning, iris recognition has no additional security, so it can play an important role in some high-level security scenes. For example, payment authentication, users only need to give their mobile phones a look when facing them, which is safe and convenient. Therefore, fingerprint and iris have their own advantages, which are suitable for different scenes and are complementary.
To sum up, the fingerprint identification industry is mature and the application ecology is perfect, and it is still the main choice for mobile terminals. As a more advanced existence, iris recognition will continue to improve and provide strong support for high-level security authentication. In my opinion, the attempt of Samsung Note7 is more of a technical demonstration, which expounds Samsung's thinking on future mobile security certification. Only after determining the development direction of fingerprint+iris dual identification mechanism, besides optimizing their performance, how to specifically coordinate their application scenarios and make the technology really convenient for users will be a problem that Samsung and the whole industry need to solve in the future.