Saturday, September 22, 2018

How Do Face Lock in Latest Phones Work?

How Do Face Lock in Latest Phones Work??

Do you guys ever think of it, or just think of it when reading this post?
Let Us Explore together the greatness of technology advancing rapidly nowadays!!

Image result for facelock
Facial recognition certainly is not new tech obviously. In this post, I will give an overview of the most famous examples of how it's currently used.
Year of 2018, led the mobile industry to follow new trends. For example we have seen bezels on smartphones shrink and almost disappear and witnessed the increasingly advanced use of artificial intelligence along with chipsets upgraded.

But how do these facial recognition technologies work? There are different variations and today we’ll see how they work according to their different characteristics.

AndroidPIT honor view 10 vs oneplus 5t 8660

LG Face Recognition


LG uses the simples and most effective of FaceRecognition. The dedicated software records image of user through front camera. It acquires biometric data, it asks the person to nod and rotate their head LEFT and RIGHT to capture as much data as possible.

1) Just pull your smartphone out your pocket of lift it up from table and place it in front of your face to unlock the device.
2) You don’t have to press the release button and no interaction with the display is required.
 3) You can hide the content of your notifications until the device recognizes your face, but you can’t watch notifications come in from the lock screen. This feature is available on the LG G6, Q6 and V30 smartphones.

Honor Face Unlock

Huawei’s sister company in China introduced face recognition for the first time on the Honor View 10 then recently introduced to the Honor 7X through an update.

At first the technology was only used to show the contents of notifications in the lock screen (that were otherwise hidden), but didn’t actually unlock the smartphone. A PIN or fingerprint scan was still needed to unlock the device.NOTE : Huawei aims to beat Apple with its own face recognition tech

1) The latest software update the recognition technology has finally become useful because after recognizing the smartphone’s owner.

2) The technology allows you to unlock the device directly or through a swipe, without a pin or password. 

3) You can choose to turn on the display and start recognition automatically as soon as you lift up your smartphone and point it towards your face, similarly to what you do for LG or Apple.

OnePlus Face Unlock

OnePlus introduced unlocking via facial recognition on the OnePlus 5T and then made it available on its predecessor models, the OnePlus 5 and 3/3T. OnePlus’s procedure is also simple, as the appearance of your face is detected via the front camera and the scan is recorded offline on your smartphone.
Each time you unlock your smartphone, it uses the front camera for recognition, comparing the original scan to what the camera sees.

1) Unlocking usually occurs immediately when the power button (or through a double tap on the off display) is pressed quickly and accurately, but you can change the settings so that after detecting the user’s face it will require a swipe on the screen to unlock.
2) This is useful if you just want to read notifications without unlocking the device.
3) There is also a function that illuminates the screen to allow for better facial recognition in low lighting conditions.

Samsung Face Recognition (and iris scanner)

Samsung uses facial recognition technology that is very simple and similar to Android stock software. 
1) During setup, your smartphone will ask you to be at a distance of about 20 to 50 cm from your device so that it can scan your face. 
2) Unlocking is fact enough, but requires that you press the unlock key to turn on the display and start the recognition procedure.
3) The secret inner workings of the iris scanner
As an alternative to this insecure unlocking method (a photo or video can deceive the system) your smartphone allows you to also use the iris scanner.

Samsung is the only manufacturer that currently uses this technology on its smartphones, but I personally find it slow and unreliable, despite the fact that according to company it’s much more reliable than reading your fingerprint. It’s also really difficult to position your device at the right distance and angle for the scanner to work. The function is available on the Galaxy S8, S8+ and Note 8.

Apple Face ID

The iPhone X is the only smartphone from the Californian company that has this feature. The smartphone, designed to celebrate the tenth anniversary of the device that has changed the world, features an array of sensors located in the upper part of the display inside the so-called notch.
1) Important sensors required for the facial recognition are the IR beam projector and the infrared camera. 
2) Apple’s IR emitter, the iPhone X is able to project thousands of infrared rays toward the user that allow the camera to create a 3D model of your face by measuring the distance traveled by each beam before they hit your face.
Facial recognition: Android chases after Apple
3) The scan is really precise and effective and mainly takes into account facial features and the relative position of your eyes and nose. This choice has proven to be successful in everyday use, as the iPhone X can even recognize its owner after a change in hairstyle, facial hair (especially relevant for me) or if you’re wearing a hat, headphones, or a scarf.
Furthermore, it makes this type of facial recognition the safest ever seen on a smartphone thanks to the precise information detected through 3D scanning.

The smartphone’s display can be turned on independently thanks to Rise to Wake and recognizes the user’s face in a fraction of a second, even in the dark. The facial recognition only serves to reveal the content of notifications (otherwise hidden) and unlock your smartphone, meaning that the iPhone understands it’s in the hands of its owner. The actual unlocking to reach the home screen is done with a swipe from below.





Do you use facial recognition to unlock your device? If so, on which device do you use it and how has your experience been with it so far?


Source : https://www.androidpit.com/how-facial-recognition-works




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