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
114 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
114 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
114 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
114 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
114 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
114 months ago
That picture just looks (descriptively sounds) like the version 1 of the Kinect.
Score: 1 Votes (Like | Disagree)

Popular Stories

iOS 26

iOS 26.2 Coming Soon With These 8 New Features on Your iPhone

Thursday December 11, 2025 8:49 am PST by
Apple seeded the second iOS 26.2 Release Candidate to developers earlier this week, meaning the update will be released to the general public very soon. Apple confirmed iOS 26.2 would be released in December, but it did not provide a specific date. We expect the update to be released by early next week. iOS 26.2 includes a handful of new features and changes on the iPhone, such as a new...
Google maps feaure

Google Maps Quietly Added This Long-Overdue Feature for Drivers

Wednesday December 10, 2025 2:52 am PST by
Google Maps on iOS quietly gained a new feature recently that automatically recognizes where you've parked your vehicle and saves the location for you. Announced on LinkedIn by Rio Akasaka, Google Maps' senior product manager, the new feature auto-detects your parked location even if you don't use the parking pin function, saves it for up to 48 hours, and then automatically removes it once...
Foldable iPhone 2023 Feature 1

Apple to Make More Foldable iPhones Than Expected [Updated]

Tuesday December 9, 2025 9:59 am PST by
Apple has ordered 22 million OLED panels from Samsung Display for the first foldable iPhone, signaling a significantly larger production target than the display industry had previously anticipated, ET News reports. In the now-seemingly deleted report, ET News claimed that Samsung plans to mass-produce 11 million inward-folding OLED displays for Apple next year, as well as 11 million...
AirPods Pro Firmware Feature

Apple Releases New Firmware for AirPods Pro 2 and AirPods Pro 3

Thursday December 11, 2025 11:28 am PST by
Apple today released new firmware designed for the AirPods Pro 3 and the prior-generation AirPods Pro 2. The AirPods Pro 3 firmware is 8B30, up from 8B25, while the AirPods Pro 2 firmware is 8B28, up from 8B21. There's no word on what's include in the updated firmware, but the AirPods Pro 2 and AirPods Pro 3 are getting expanded support for Live Translation in the European Union in iOS...
iOS 26

15 New Things Your iPhone Can Do in iOS 26.2

Friday December 5, 2025 9:40 am PST by
Apple is about to release iOS 26.2, the second major point update for iPhones since iOS 26 was rolled out in September, and there are at least 15 notable changes and improvements worth checking out. We've rounded them up below. Apple is expected to roll out iOS 26.2 to compatible devices sometime between December 8 and December 16. When the update drops, you can check Apple's servers for the ...
AirTag 2 Mock Feature

Apple AirTag 2: Four New Features Found in iOS 26 Code

Thursday December 11, 2025 10:31 am PST by
The AirTag 2 will include a handful of new features that will improve tracking capabilities, according to a new report from Macworld. The site says that it was able to access an internal build of iOS 26, which includes references to multiple unreleased products. Here's what's supposedly coming: An improved pairing process, though no details were provided. AirTag pairing is already...
iOS 26

Apple Seeds Second iOS 26.2 Release Candidate to Developers and Public Beta Testers

Monday December 8, 2025 10:18 am PST by
Apple today seeded the second release candidate version of iOS 26.2 to developers and public beta testers, with the software coming one week after Apple seeded the first RC. The release candidate represents the final version iOS 26.2 that will be provided to the public if no further bugs are found. Registered developers and public beta testers can download the betas from the Settings app on...
iPhone 14 Pro Dynamic Island

iPhone 18 Pro Leak Adds New Evidence for Under-Display Face ID

Monday December 8, 2025 4:54 am PST by
Apple is actively testing under-screen Face ID for next year's iPhone 18 Pro models using a special "spliced micro-transparent glass" window built into the display, claims a Chinese leaker. According to "Smart Pikachu," a Weibo account that has previously shared accurate supply-chain details on Chinese Android hardware, Apple is testing the special glass as a way to let the TrueDepth...
Home Hub Command Center with Dome Base Siri Finder Feature

iOS 26 Code Leak Reveals Apple Smart Home Hub Details

Thursday December 11, 2025 4:02 pm PST by
Apple is working on a smart home hub that will rely heavily on the more capable version of Siri that's coming next year. We've heard quite a bit about the hub over the last two years, but a recent iOS 26 code leak provides additional insight into what we can expect and confirms rumored features. Macworld claims to have access to an internal version of iOS 26 that references several upcoming...
studio display purple

Apple Studio Display 2 Code Hints at 120Hz ProMotion, HDR, A19 Chip

Thursday December 11, 2025 4:19 am PST by
Apple's next-generation Studio Display is expected to arrive early next year, and a new report allegedly provides a couple more details on the external monitor's capabilities. According to internal Apple code seen by Macworld, the new external display will feature a variable refresh rate capable of up to 120Hz – aka ProMotion – as well as support for HDR content. The current Studio...