My only question is, will face recognision work if one has prosthetic eyes?  

 

From: macvisionaries@googlegroups.com [mailto:macvisionaries@googlegroups.com] 
On Behalf Of the.big.apple.n...@gmail.com
Sent: September 13, 2017 2:23 PM
To: macvisionaries@googlegroups.com; viph...@googlegroups.com; 
macvisionaries@googlegroups.com
Subject: Re: Apple's New Face ID Biometric System Works in the Dark and When 
Your Face is Obscured by Hats and Beards

 

Amazing email. I am very interested in trying this

 

Maria Reyes 

Owner of the following groups- 

Apple 411: apple411+subscr...@groups.io

iMessage/FaceTime: the.big.apple.n...@gmail.com





On Wed, Sep 13, 2017 at 4:48 PM -0400, "Mary Otten" <motte...@gmail.com 
<mailto:motte...@gmail.com> > wrote:

 

Apple's New Face ID Biometric System Works in the Dark and When Your Face is 
Obscured by Hats and Beards

MacRumors: Mac News and Rumors  /  Juli Clover


In the new iPhone X, Face ID, a facial recognition system, replaces the Touch 
ID fingerprint sensor we've grown accustomed to since it was introduced in the 
iPhone 5s. 

Because Face ID is a new biometric system, there are a lot of questions about 
its accuracy and how it will work in various conditions, all of which Apple has 
answered both in the keynote and on its website. 




How Face ID Scans Your Face



Face ID is enabled through a TrueDepth front-facing camera on the iPhone X, 
which has multiple components. A Dot Projector projects more than 30,000 
invisible dots onto your face to map its structure. 


The dot map is then read by an infrared camera and the structure of your face 
is relayed to the A11 Bionic chip in the iPhone X and transformed into a 
mathematical model. The A11 chip then compares your facial structure to the 
facial scan stored in the iPhone X during the setup process. 


As with Touch ID, if there is a match between the two face scans, the iPhone X 
will unlock. From there, you can swipe upwards to get to the Home screen. 


Face ID in the Dark



Face ID uses infrared to scan your face, so it works in low lighting conditions 
and in the dark. The TrueDepth camera also has what Apple calls a "Flood 
Illuminator," aka an infrared light that illuminates your face in the dark so 
the dot map and the infrared camera can do their jobs. 


Fooling Face ID



First of all, Face ID can't be fooled by a photo because it takes a 3D facial 
scan to unlock a device. Face ID is also "attention aware," a feature Apple 
implemented for extra security. 

Face ID will only unlock your device when you look in the direction of the 
iPhone X with your eyes open, meaning Face ID only works when there's a live 
person in front of it. Attention aware is optional, though, and can be turned 
off if you choose. Most people will want to leave attention awareness on, but 
for users unable to focus their attention on the iPhone, turning it off will 
allow the iPhone X to unlock with just a facial scan. 

Face ID is also sensitive enough to tell the difference between you and someone 
who is wearing a mask of your face. Apple trained Face ID with hyperrealistic 
masks created by Hollywood studios, ensuring a mask of a person wouldn't be 
able to fool the Face ID system. 


According to Apple, Face ID is more secure than Touch ID because there are 
slimmer chances of a mismatch. There's a 1 in 50,000 chance someone will be 
able to unlock your iPhone with their fingerprint, but a 1 in 1,000,000 chance 
someone else's face will fool Face ID. That doesn't count for twins, though -- 
if you have an identical twin, that error rate increases. 

Touch ID locks a device after five failed attempts, but with Face ID, Apple is 
only allowing two failed attempts 
<https://developer.apple.com/documentation/localauthentication/lapolicy/1622327-deviceownerauthenticationwithbio>
 . After two incorrect scans, the iPhone X will lock and require your passcode 
to unlock again. 


Face ID With Hats, Beards, Makeup, and Glasses



Face ID works with hats, beards, glasses, scarves, and other accessories that 
partially obscure the face. According to Apple, this is because the A11 Bionic 
chip in the iPhone X uses machine learning and a neural engine to recognize 
changes in your appearance. 

It's also likely that Face ID, like other facial recognition systems, has a 
match threshold that's below 100 percent, so even with part of the face not 
visible, it recognizes the part that is visible. 


Face ID also adapts to changes in your appearance over time, so it will 
continue to recognize you as you grow a beard or grow your hair longer. 

One caveat -- Apple doesn't mention sunglasses. There's a chance that Face ID 
doesn't work when wearing sunglasses because it obscures your eyes, and eye 
contact is required for unlocking the device. Attention aware can be disabled, 
though, so Face ID may work with sunglasses in that situation. 


Face ID When Unconscious or Sleeping



If someone knocks you unconscious or attempts to unlock your iPhone X with your 
face while you're sleeping, it's not going to work. 

As mentioned above, you need to look at your iPhone for Face ID to grant access 
to your device. 


Face ID Privacy



On iPhones with Touch ID, your fingerprint data is stored in a Secure Enclave 
on the device, and the same is true of Face ID. Your facial map is encrypted 
and kept in the Secure Enclave, with authentication happening entirely on your 
device. No Face ID data is uploaded to iCloud or sent to Apple. 


Multiple Faces in Face ID



When using Touch ID, multiple fingerprints can be added to a device so more 
than one person can unlock it. That is not possible with Face ID. Face ID makes 
a map of a single face and that's the only face that can unlock the iPhone X. 
To add a new face, the existing face must be removed. 


Face ID at an Angle



You don't need to hold the iPhone X right in front of your face for it to make 
a Face ID scan. On stage at the keynote event, it was shown held at a 
comfortable viewing angle and held flat downwards while making an Apple Pay 
payment at payment terminal. 




Face ID and Apple Pay



Face ID replaces Touch ID when authenticating Apple Pay purchases. When 
checking out with Apple Pay, a glance at the iPhone X will authenticate a 
payment, and a double click on the side button of the device will confirm it. 


Face ID will also work in lieu of Touch ID for confirming iTunes payments, 
accessing secure apps, and more. All third-party apps that use Touch ID will 
also be able to use Face ID. 


Face ID Special Features



With the "attention aware" feature, the iPhone X knows when you're looking at 
it. Face ID will display notifications and messages on the Lock screen when you 
look at the iPhone X, it will keep the screen lit, and it will automatically 
lower the volume of an alarm or ringer when it knows your attention is on the 
iPhone X's display. 




Face ID Neural Engine



Face ID is powered by a two-core neural engine built into the A11 Bionic chip. 
It works in real time and can process more than 600 billion operations per 
second. 

To train the neural engine, Apple used more than a billion facial images and 
created several neural networks. 


Face ID Growing Pains



Touch ID was slow and imperfect when it first launched, and Face ID may not be 
perfect right away either. iPhone X hands-on reports were generally impressed 
<https://www.macrumors.com/2017/09/12/first-iphone-x-impressions/>  with the 
Face ID feature, but there were some reports of problems with the feature not 
working until the display was turned on and off. 

Apple will likely refine Face ID in software updates to further work out bugs, 
and future iPhones will undoubtedly come with more advanced Face ID systems 
that further improve the feature's functionality. 

Apple says Face ID is the future of how we will unlock our smartphones, 
suggesting Face ID will be the de facto Touch ID replacement in devices going 
forward.

Related Roundup: iPhone X <https://www.macrumors.com/roundup/iphone-x/>  


Discuss this article 
<https://forums.macrumors.com/threads/how-iphone-x-face-id-works.2066994/>  in 
our forums

 
<http://feeds.macrumors.com/~ff/MacRumors-Front?a=VKfgljeLAvM:ykrYgqDi4xs:yIl2AUoC8zA>
  
<http://feeds.macrumors.com/~ff/MacRumors-Front?a=VKfgljeLAvM:ykrYgqDi4xs:6W8y8wAjSf4>
  
<http://feeds.macrumors.com/~ff/MacRumors-Front?a=VKfgljeLAvM:ykrYgqDi4xs:qj6IDK7rITs>
 



Original Article: 
https://www.macrumors.com/2017/09/13/how-iphone-x-face-id-works/



Sent from my iPhone

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