Why does iPhoneX adopt FaceID technology?

The dot matrix projector on iPhoneX is the main hardware for mobile phone to unlock 3D face and simulate my expression.

The projector with a lamp projects 30,000 invisible highlights, and at the same time, the 3d contour of the face is memorized by an independent neural engine, thus realizing the face unlocking with payment accuracy. At the same time, with the help of the dot matrix projector, the mobile phone can also detect the user's facial expressions in real time, thus realizing the use of mimetic expressions.

Extended data:

Face ID is a brush face authentication method introduced by iPhone X instead of touch ID. It is equipped with an ambient light sensor and a distance sensor, and also integrates an infrared lens, a floodlight camera and a dot matrix projector. Various configurations * * * Build a 3D facial model of the user.

2065438+On September 13, 2007, Apple held a press conference, and the released iPhone X supported the login and unlock function of Face ID.

Apple also asked the Hollywood special effects mask company to make a set of masks to train neural networks to ensure safety.

FaceID_ Baidu Encyclopedia