Face unlock function will constantly update face model.
The Face Unlock feature on Google Pixel 4 and Pixel 4 XL smartphones works, as you know, very quickly. This is due to both the hardware and software components of this solution.
However, Google wants Face Unlock to work even better and faster. Therefore, as reported, the next update brought changes to the function. In particular, Face Unlock now periodically when using updates the three-dimensional model of the user’s face in order to take into account changes in appearance associated with the appearance of some accessories, as well as with changes in hair or beard.
At the same time, Google notes that this data is stored in a special Titan microprocessor and does not enter the Network in any way.
However, at the same time, the problem with the fact that Face Unlock works when the user has their eyes closed is still not resolved.