"Fingerprint door" continues to ferment and rely on 3D facial recognition to support the future

Samsung mobile phones had a slight improvement in the domestic market, but recently they have once again fallen into the whirlpool of public opinion on the "fingerprint door" incident. Although Samsung previously announced that the latest ultrasonic fingerprint verification technology is very advanced, it unexpectedly happened that anyone can unlock without a fingerprint. The continuous fermentation of the "fingerprint gate" has also made people doubt the security of fingerprint verification again.

What's up with Samsung's "Fingerprint Door"?

Recently, many users have reported that there are major security risks when using Samsung Galaxy S10 and Note10 series products. The shape of the fingerprint left after the mobile phone is filmed will be recognized by ultrasonic waves, and almost anyone's fingerprint can unlock the phone, and even log in to the bank APP. Although Samsung officially issued an apology statement at the first time, planned to release a software patch to solve the problem, and advised users not to use the film on the screen, its security vulnerability is still shocking.

(A sticker "ruined" ultrasonic fingerprint verification on Samsung's flagship phone)

Because fingerprint verification involves the security of users' funds, after Samsung's "fingerprint door" was exposed, many banking institutions around the world urgently shut down Samsung mobile phone-related payment functions, and some domestic Samsung users reported that WeChat and Alipay also closed their related models. fingerprint payment function. This has undoubtedly brought too much inconvenience to users today when mobile payment is quite popular.

Insecure and inconvenient fingerprint verification

Reviewing the origin of Samsung's "Fingerprint Door" has actually revealed to us various drawbacks of fingerprint verification. First of all, fingerprint verification has the possibility of being easily copied. Let’s not talk about the fact that fingerprint inversion can be easily cracked. Just sticking a film on a mobile phone can cause advanced ultrasonic fingerprint verification to fail. This is enough to prove that the security of fingerprint verification may not be as high as people imagined.

(The application of 3D structured light to mobile phones brings a significant improvement in safety and convenience)

The root cause is that although everyone's fingerprints are different, the collected area is small, and the complexity of the texture and the detection accuracy are relatively low. According to the data when Apple launched Face ID, the error rate of facial recognition based on 3D structured light is only one in a million, while the fingerprint-based Touch ID is as high as one in 50,000, a full 20 times the difference.

Secondly, there are also many inconveniences in the use of fingerprint verification. For example, moisture and dirt can make the phone unable to be unlocked, or fingerprint unlocking is extremely inconvenient when the user is cooking or repairing. The facial recognition based on 3D structured light can realize the full-scene non-sensing unlocking payment experience, which can be completed by simply swiping the face. This also seems to explain why Apple, which pays so much attention to user experience, is now using Face ID with 3D structured light technology, apparently because it is safer and more convenient.

3D structured light will be the perfect alternative

3D structured light technology has been widely used in many application scenarios of 3D facial recognition, such as the Apple Face ID just mentioned and some flagship mobile phones of Huawei, OPPO, Xiaomi and other brands to deploy 3D facial recognition function. In addition, in the field of financial payment, Alipay, WeChat, UnionPay "Face Pay" and other face-swiping payment terminals deployed by offline merchants are also based on the application of 3D structured light technology.

(Principle of 3D Structured Light Technology)

The reason why 3D structured light technology is being valued by more and more terminal manufacturers is mainly because this technology can provide a recognition accuracy of 1mm (millimeter level) within a reasonable human-computer interaction distance (about 1m) and has a low power consumption performance. In addition, the detailed features of the face are more abundant, and it is not as susceptible to external factors as fingerprint verification. Therefore, the "face brushing" application based on 3D structured light is superior to fingerprint verification in both security and convenience.

(Dahua Lecheng released the industry's first 3D structured light AI face recognition door lock)

At this year's "Construction Expo" and "Security Expo" exhibitions, we can clearly see that the smart door lock industry is undergoing an iterative upgrade from traditional fingerprint verification to 3D facial recognition verification, and the security and convenience of its smart products have greatly improved. promote. Taking Dahua Lecheng, the leading brand in the smart door lock industry, as an example, the released multiple face-scanning smart door lock products use the 3D structured light face-scanning solution provided by the top domestic supplier Aobi Zhongguang. Its 3D camera model The group is smaller in size and lower in power consumption, fully compliant with financial-level security standards, and has become a key part of enabling the traditional security industry to move towards intelligent transformation and development.

From the continuous outbreak of hidden dangers of the "fingerprint door" incident, it is not difficult to see that the development path of fingerprint verification has come to an end. Even the so-called more advanced ultrasonic recognition technology cannot make up for the inherent shortcomings of fingerprint verification, but may be self-defeating. Now, face recognition based on 3D structured light technology is being replaced in an all-round way. Whether it is smartphones, face-swiping payment terminals, or smart security that is undergoing drastic changes in the industry, 3D structured light technology is the perfect alternative that is safer and more convenient. .