Apple was awarded a patent today that details a method of detecting faces in a digital video feed through the use of depth information.

Published by the U.S. Patent and Trademark Office, the document describes how face detection algorithms could identify the presence of faces in a live video when people in the scene are located at different distances from the camera.

Screen Shot 4 e1488886008905
To reduce processing overhead and minimize error rates, the system applies depth information to existing face detection algorithms used in photography and intelligently scales the face window sizes according to their depth coordinates – i.e., the further away a face is from the lens, the smaller the capture frame around it.

The method utilizes a special infrared light to project an optical radiation pattern onto the scene, which is then converted into a depth map. As noted by AppleInsider, the depth mapping system referenced in the patent is based on motion tracking technology developed by Israeli motion capture firm PrimeSense, which Apple acquired in 2013.

Screen Shot 3 1
While the system is able to recognize faces in general, it lacks the ability to identify individual differences between faces, so this isn't a bio-recognition solution in itself, but it could become a crucial enabling step in a wider authentication system.

Apple is said to be developing a "revolutionary" front-facing camera system for the upcoming "iPhone 8". The technology is rumored to consist of three modules to enable fully-featured 3D sensing capabilities. While there's no way to know for sure if this particular patent describes one of those modules, the upgraded camera system is said to be fueled by PrimeSense algorithms.

Tag: Patent
Related Forum: iPhone

Top Rated Comments

newyorksole Avatar
105 months ago
Selling my stock just befor iPhone 8, not because it will be poor, in fact I expect it to be excellent... still, it won't have the usb-c, full glass, oled with intergrated fingerprint scanner, with revolutionary front camera, full wireless charging, multi day battamerylife, quick charge, liquid metal and touch bar. These high expectations are going to make a great phone seem ordinary and people need to understand that.
I think you may be underestimating how big of a release this will be.

iPhone is Apple's cash cow. This is the 10 year anniversary and also will probably be the first event at Steve Jobs Theater.

It may not have all of THOSE features you listed, but whatever they release is going to be damn good. They wouldn't waste this release with mediocre features.
Score: 4 Votes (Like | Disagree)
69Mustang Avatar
105 months ago
As @djcerla stipulated in one thread, unlocking with face recognition would likely be a backup/secondary solution for Touch ID. So you can use either or. :)
Every phone that's offering facial/retina/iris unlock is offering it as an option. There's no reason for anyone to think Apple would offer it as the only solution. People work themselves into a lather over nothing.
Score: 4 Votes (Like | Disagree)
keysofanxiety Avatar
105 months ago
So I can't unlock the phone down low if I need to be discreet about messaging someone or checking something?
As @djcerla stipulated in one thread, unlocking with face recognition would likely be a backup/secondary solution for Touch ID. So you can use either or. :)
Score: 3 Votes (Like | Disagree)
benadd Avatar
105 months ago
PrimeSense was an Israeli company, not Italian.

('https://www.macrumors.com/2017/03/07/apple-face-detection-patent-iphone-8/')


Apple was awarded a patent today that details a method of detecting faces in a digital video feed through the use of depth information.

Published by the U.S. Patent and Trademark Office, the document ('http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.htm&r=2593&f=G&l=50&d=PTXT&s1=(1%2F1.CCLS.+AND+20170307.PD.)&p=52&OS=ccl/1/1+and+isd/3/7/2017&RS=(CCL/1/1+AND+ISD/20170307)') describes how face detection algorithms could identify the presence of faces in a live video when people in the scene are located at different distances from the camera.



To reduce processing overhead and minimize error rates, the system applies depth information to existing face detection algorithms used in photography and intelligently scales the face window sizes according to their depth coordinates - i.e., the further away a face is from the lens, the smaller the capture frame around it.

The method utilizes a special infrared light to project an optical radiation pattern onto the scene, which is then converted into a depth map. As noted by AppleInsider ('http://appleinsider.com/articles/17/03/07/apple-patents-method-of-detecting-faces-using-depth-information-bolsters-iphone-8-rumors'), the depth mapping system referenced in the patent is based on motion tracking technology developed by Italian motion capture firm PrimeSense, which Apple acquired in 2013 ('https://www.macrumors.com/2013/11/24/apple-confirms-acquisition-of-israeli-3d-body-sensing-firm-primesense/').



While the system is able to recognize faces in general, it lacks the ability to identify differences between individual faces, so this isn't a bio-recognition solution in itself, but it could become a crucial enabling step in a wider authentication system.

Apple is said to be developing a "revolutionary" front-facing camera system ('https://www.macrumors.com/2017/02/21/upcoming-oled-iphone-camera/') for the upcoming "iPhone 8". The technology is rumored to consist of three modules to enable fully-featured 3D sensing capabilities. While there's no way to know for sure if this particular patent describes one of those modules, the upgraded camera system is said to be fueled by PrimeSense algorithms.

Article Link: Apple Face Detection Patent Hints at Possible PrimeSense Tech Headed For 'iPhone 8' ('https://www.macrumors.com/2017/03/07/apple-face-detection-patent-iphone-8/')
Score: 2 Votes (Like | Disagree)
thisisnotmyname Avatar
105 months ago
As @djcerla stipulated in one thread, unlocking with face recognition would likely be a backup/secondary solution for Touch ID. So you can use either or. :)
I really do hope they make facial recognition as an authentication mechanism optional via configuration. I don't want someone being able to unlock my phone by forcing it in front of my face.
Score: 1 Votes (Like | Disagree)
69Mustang Avatar
105 months ago
That picture just looks (descriptively sounds) like the version 1 of the Kinect.
Score: 1 Votes (Like | Disagree)

Popular Stories

iOS 19 visionOS UI Elements

iOS 19 to Have Some of the 'Biggest' Design Changes in iPhone's History

Sunday March 16, 2025 10:35 am PDT by
Apple is planning some of the "biggest iOS and macOS redesigns in its history," according to Bloomberg's Mark Gurman. In his Power On newsletter today, Gurman reiterated that iOS 19 will have a visionOS-like design with more transparent interfaces:The new interfaces will adopt the design principles introduced in visionOS, the software for Apple's Vision Pro headset. That includes greater...
iphone 17 pro asherdipps

iPhone 17 Pro Max Rumors Allegedly Refer to 'iPhone 17 Ultra' Model

Friday March 14, 2025 7:56 am PDT by
If you've been following iPhone rumors over the last few years, you may remember reading reports that Apple flirted with the idea of introducing a super high-end "Ultra" model that would either replace its Pro Max device or sit above it in Apple's smartphone hirearchy. These reports appeared in the pre-launch iPhone 15 and iPhone 16 rumor cycles, but ultimately came to nothing. Now though, the...
Bent iPhone Air Feature

Apple Canned Larger iPhone 17 Air Model Over Fears of Bendgate 2.0

Monday March 17, 2025 4:07 am PDT by
Apple prototyped a larger ultra-slim iPhone 17 Air with a 6.9-inch display, but ultimately decided not to go ahead with the device because of fears that it could be susceptible to bending, according to a new report. Bloomberg reporter Mark Gurman, writing in his latest Power On newsletter: When it first started work on the phone, it prototyped a device with a 6.9-inch screen — matching...
iphone 16 pro models 1

Apple's First Foldable iPhone Estimated to Cost Nearly Twice as Much as iPhone 16 Pro Max

Monday March 17, 2025 6:42 am PDT by
In an investor research note today with British bank Barclays, analyst Tim Long said Apple's first foldable iPhone could have a starting price in the $2,300 range in the United States, which would make it by far the most expensive iPhone model ever. If the first foldable iPhone starts at $2,299, that means it would cost nearly twice as much as the iPhone 16 Pro Max, which starts at $1,199. ...
General iOS Mail Feature

iOS 18.3.2 Broke iCloud Mail Delivery

Monday March 17, 2025 3:31 pm PDT by
The iOS 18.3.2 update that Apple released last week appears to have broken iCloud Mail for some users. There are multiple complaints on Reddit and the MacRumors forums from users who say that iCloud Mail is not able to push new iCloud emails to their iPhones after the iOS 18.3.2 update. Affected users say that despite having the correct settings enabled, new iCloud emails are not showing up...
iPhone 17 Air Size Feature

'iPhone 17 Air' Rumored to Start at $899 With Surprisingly Good Battery Life, Camera Control, and More

Sunday March 16, 2025 9:05 am PDT by
Bloomberg's Mark Gurman today shared some new details about the rumored iPhone 17 Air. In his Power On newsletter, Gurman said he was told that the device may start at roughly $899 in the U.S., which means that it would occupy the same price point as the iPhone 16 Plus. This would make sense, as it has been widely rumored that the Air model will take over the Plus model's spot in the iPhone...
iphone 16 pro models 1

All Four iPhone 17 Models Rumored to Feature Upgraded 24-Megapixel Front Camera and More

Monday March 17, 2025 7:50 pm PDT by
All four iPhone 17 models launching later this year will feature an upgraded 24-megapixel front-facing camera, according to analyst Jeff Pu. In a research note today with investment firm GF Securities, Pu shared a chart in which he reiterated that the iPhone 17, iPhone 17 Air, iPhone 17 Pro, and iPhone 17 Pro Max will each be equipped with a 24-megapixel front camera. By comparison, all four ...
iphone 16e usb c feature

'iPhone 17 Air' is Step Towards Slimmer iPhones Without USB-C Ports

Sunday March 16, 2025 9:36 am PDT by
Apple considered launching the iPhone 17 Air without a USB-C charging port, according to Bloomberg's Mark Gurman. In his Power On newsletter today, Gurman said that while Apple ultimately decided against making the iPhone 17 Air its first iPhone model without a charging port, the idea is still on the table for future iPhone models. He said the iPhone 17 Air will "foreshadow a move to...