Face recognition has been gaining traction as phones, after Apple introduced its Apple ID in 2017. Google has become one of the most invested companies in technology. what they do is also called Project Soli. It's a mini-radar project, which after years of development has finally reached the Pixel 4 and 4 XL.
Although they have been in the market for a few months, way there the sensor of this Pixel 4 is working it was unknown. Finally Google decided to explain how the Solar works. We already know how the new high performance sensor works.
Google Pixel 4: analysis and evaluation. Camera attached to Android
Soli: Google Pixel 4 sensor
Months before the introduction of the new generation of phones, its first works were modeled, such as Motion Sense. This is an enabling job to communicate the phone without physical contact
Google explains that Motion Sense allows see when we are near the phone. Th is feature is based on machine learning and signal processing algorithms. The basic function of this radar or sensor is to detect and measure the properties of objects, based on the interaction with radio waves. It works the same way on any other radar. However in this case there are no limitations we have on traditional radar.
To overcome these limitations, Google developed the Solar as if it were a very small radar. More than that motion detection algorithm based on motion, instead of a position. Due to its small size (5 x 6.5 x 0.873 mm) it is available in the top frame of the Pixel 4 and Pixel 4 XL.
It operates only for transient changes in signals received by a standard 60 GHz signal and transmits. Because of this signal, it has the ability to distinguish those objects that have different movement patterns. This radar has the ability to identify movement patterns. Depending on the speed or distance, the power will be distributed differently, thus having greater accuracy.
In the image above you can see an example of how Soli works on Google Pixel 4. As you approach your phone, it's time to start communicating. The screen will be unlocked right then, a few seconds before the user can download it. Radar not only does it all, but also the machine learning algorithms of a company that has an impact on its efficiency. As it filters and broadens the radar signal or converts signals received into phone orders itself.
Google continues to immerse Soli, even though the level reached so far is likely due to the neural network with thousands of volunteers. They are gone registering all types of movement and gestures that these people drive it around the phone, so that the algorithm can recognize them and know when they interact with Google Pixel 4 and when they're not. The company says it is continuing to work on improving the Samsung, so it is likely that on the new Pixel this year there will be further improvements in its performance.
