Why is facial recognition of Pixel 4 so important for Android smartphones



Why is facial recognition of Pixel 4 so important for Android smartphones

With the

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
    each person.

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
    of the'

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
    technology.

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.

Source: Cnet.com

Image: Google / Marc Zaffagni