Nowadays, people's demand for biometrics is getting stronger and stronger. The iPhone5s's press-type fingerprint recognition rubs Android's various passwords and sliding unlocks on the ground for nearly one year. The face recognition on iPhoneX replaces the unlocking method of the mobile phone with " I have confirmed my eyes, I met the right person."
The method of opening the smart lock has been updated following the development of biometric technology. The push-type fingerprint recognition technology is a ride through the rapid development of the fingerprint recognition module on the mobile phone. Some people think that smart locks will also catch up with the "face recognition" ride. When the structured light technology is mature, you can quickly open the door with a glance.
But is this really true? The author believes that the smart lock for facial recognition is not as popular as fingerprint recognition. There are many reasons for this. Let's talk about it in detail.
(The premise of facial recognition discussed in this article is that this technique is already mature, so security is not covered in this article.)
First, the height of the smart lock is fixed, and the phone is mobile. When the authentication is performed, the mobile phone can be lifted to the front for authentication, and since the smart lock is usually only fixed at a height of about one meter, the authentication can only be lowered at the time of authentication, or the facial information cannot be obtained.
Secondly, facial recognition technology can't perform standby work for a long time, especially in smart locks, which consumes a lot of power and needs to be activated in one way. The problem of activating facial recognition can be solved by using a raised wrist screen on the mobile phone, but since the smart lock cannot be moved, it is necessary to set an activation mode. Fingerprint unlocking can be verified in one step when the press is activated, but the face recognition needs to be activated and then verified, which is a bit cumbersome.
In addition, facial recognition also has requirements for the height of the front door. Usually, in order to obtain the facial information of most people, the smart lock of the facial recognition will shoot the infrared camera at an angle of about 45 degrees, which makes it impossible to make the height low. The child or the person in the wheelchair is verified by facial recognition, which makes the audience less than the fingerprint recognition.
In contrast, face recognition and fingerprint recognition do not occupy much advantage. After all, people's heads are far from flexible, and the flexibility of face recognition is temporarily not high in fingerprint recognition. Therefore, the author believes that on smart locks, face recognition It will not replace fingerprint recognition, but will be used as an alternative authentication method.
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