Pixel 4, Google has managed to do what no other phone maker
Android has failed so far: catch up
Face ID, the function of unlocking by facial recognition of the iPhone
launched two years ago. Now that there is a version
as secure and powerful on Android, no doubt that consumers
will wait for it from other brands of smartphones. She exists
already for several years, but its lack of reliability confined it to
an accessory role while at the same time Face ID was sufficiently
powerful to secure transactions.
Some Huawei phones, including the
Mate 30 Pro, use the same technology as Apple to unlock the phone,
but they do not support mobile payments. This year, Samsung has
finally abandoned his iris scan after three years without having
really convinced. So that leaves Apple as the only true
security benchmark by mobile face recognition
Bridging the gap with Face ID gives Google a huge advantage
Consumers are becoming more aware of the value of their lives
private sector, it is potentially more practical to be able to offer a
unlocking by face scan only by fingerprint or code
PINE. Bridging the gap with Face ID also gives Google an edge over
Samsung, LG, Huawei and all other competitors with a key
opportunity to assemble the brand image of smartphones Pixel.
But more importantly, the
Pixel 4 could produce a ripple effect in the rest of the Android world.
If Google lays the foundation for this secure version of recognition
facial in Android, this offers the guarantee that all smartphones
mid-range and premium will use this feature, since around
90% of all mobiles use the OS in the little green robot.
With digitization of fingerprints, facial recognition
is one of the few secure biometric methods of verifying
identity. On a phone, it's a fast, convenient alternative
especially hands free. This frees up space on the screen and avoids having
groping on the back or side of the device to unlock with his
digital print. Advocates of facial recognition say
also that this technology is safer than fingerprint readers
digital and more difficult to deceive with images and appendices
synthetic, like dummy fingers.
The system works by sweeping the face to create an image that the
phone then compares to your face when you try to
unlock your device. The less secure versions create
images with the camera, which are quite easy to deceive with
pictures, masks or other lures.
Apple, and hence now Google, use an infrared sensor for
project tens of thousands of dots on the face. This creates a
3D depth map with a lot more data on the length, the
shape, range and width of the facial characteristics specific to
On the iPhone, you have to swipe the screen to complete
unlocking after being identified by Face ID. Pixel 4 uses
the Motion Sense feature, a radar system that detects motion and
can see that we approach the hand to grab the phone. It activates
then automatically facial recognition so that the
Unlocking is done almost instantly.
Why did it take so long?
It is unclear why facial recognition was
taken so late compared to Apple. Indeed, one year after the launch
iPhone X in 2017 that introduced Face ID, Qualcomm integrated the support of a
projector of 50,000 points in its Snapdragon 845 chipset. But the
Apple's competitors have obviously been slow to adopt this
And it's finally Google that shows the way. Having asked
basics of performing and secure facial recognition on Android
while associating it with Motion Sense technology is a big step in
before. And with its resources and power, Google has the potential to
push biometrics even further in the future.
Image: Google / Marc Zaffagni