What is the working principle of iphone x's face ID?

What is the working principle of iphone's face ID?


The iPhone series Face ID is by floodlight, infrared cameras, a front-facing camera, projector, proximity sensor, an ambient light sensor, speakers and microphones。The entire area is called the "TrueDepth camera system".

What is the working principle of iphone's face ID?

Whenever you are facing iphone x,Flood lighting USES infrared light to detect your face and form the image.Then the projector will project more than 30,000 invisible infrared points on your face to create a 3D map.

Finally, the infrared thermal imager to read the map and sends the data to the neural network, to create a mathematical model of your face.Your iPhone X will check your Settings and stored on the device to see if it matches the mathematical model, if there is a match, it will unlock your phone.


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