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iPhone X Use Which Sensors For Face ID?

...and where does ST fit in?
9/13/2017 00:01 AM EDT
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junko.yoshida
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Re: Touch ID error rate
junko.yoshida   9/15/2017 6:37:43 AM
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Thanks, Kevinhahn. My bad. I had it on my notes right, but somehow transcribed it wrong. My apologies. It's now corrected.

realjjj
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Re: Hi realjjj -- could you try once again
realjjj   9/15/2017 1:09:25 AM
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"An alternative view from yours is that facial recognition is a replacement for FP sensor -- making FP sensor authentication approach obsolete."

That's what the article is hinting at and why I though I'll point out that maybe it's not that straightforward.

FP integrated in the display enables smaller bezel, is most likely lower power while being safer. Hard to say how cost compares but compelling facial recognition doesn't seem cheap either for now.

You also have 10 fingers vs one face and it is slightly harder to acquire a fingerprint. Each finger could be used to unlock different things so that's an advantage. With the facial recognition solution, some camera tricks can be enabled. All in all, maybe in high end, both will be used and bellow high end, it will depend on how costs evolve but right now traditional FP solutions will still rule in mainstream. Hard to predict based on assumptions on cost and power so I could be very wrong.

Huawei will be doing something i was waiting for with machine learning,They'll use it to adjust camera settings. If done well, that's a big deal as users are terrbile at that. Vast majority of users have no idea at all how to best use the camera and that does matter. Their new high end SoC, the Kirin 970, has a machine learning accelerator, in collaboration with Cambricon Technologies. http://consumer.huawei.com/en/press/news/2017/ifa2017-kirin970/


Edit: just had an idea, using a succession of fingerprints to unlock sensitive areas- or traditional pattern or code + on display fingerprint. That would be much safer than just  one tap and possible when a larger area of the display is FP enabled. Much harder to spoof or forcefully unlock the device since you don't know the combination. I don't like biometrics for security at all because of this issue but combining it with a traditional code/pattern would solve the problem. Suppose i just found a way to use biometrics in a way that doesn't suck LOL. Users that care about convenience could configure for 1 tap, users that want higher security could choose a more complex alternative.

kevinhahn
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Touch ID error rate
kevinhahn   9/15/2017 12:55:27 AM
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Hi Junko

For Touch ID, the probability of matching someone else's fingerprint is 1 in 50,000, not 1 in 50,000,000.

https://support.apple.com/en-us/HT204587

sranje
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Re: Hi realjjj -- could you try once again
sranje   9/14/2017 7:17:24 PM
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Thank you for explanation realjjj.  

Apple facial recognition solution is quite complex and surprisingly thorough / definite -- although it could still add iris verification later.

An alternative view from yours is that facial recognition is a replacement for FP sensor -- making FP sensor authentication approach obsolete.

We will see -- clearly AI is now used extensively in SPs -- for voice, image, video, etc. processing

Tangey99
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flood illuminator
Tangey99   9/14/2017 7:56:29 AM
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"While Cambou wasn't sure what a flood illuminator does, he acknowledged it could be as simple as "some sort of flash," to bring more light into the scene. "The face has to be seen by the regular camera for recognition," he added."

I'm pretty sure it's just a fancy name for an IR light source. Face ID works in total darkeness, it uses IR to light the subject.

realjjj
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Re: Hi realjjj -- could you try once again
realjjj   9/13/2017 10:34:13 PM
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There were lots of press and financial analyst reports on Apple's intentions to integrate the FP sensor and the failure to do so. Given the persistence and consistency of these reports, i am assuming they were accurate.

That seem to be where FP sensors are headed, first a small area of the display and then the entire display. Synaptics has claimed that a Chinese OEM will be the first to integrate their optical solution towards the end of the year and Qualcomm has its ultrasound based solution advertised for mid 2018. Likely there are others out there working on this ofc.

 

sranje
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Hi realjjj -- could you try once again
sranje   9/13/2017 8:31:10 PM
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Thank you realjjj -- your comments are often interesting and useful.

I re-read your entire comment several times -- this time completely unsuccessfully. Could you pls restate your main points?

Especially your assertion that FP sensor was not replaced/obsoleted --- that instead Apple just couldn't include/integrate FP sensor in the display "in time"....  

What are the sources for such assertion?  Many thanks in advance

realjjj
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...
realjjj   9/13/2017 2:45:10 AM
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But this is plan B, they couldn't integrate fingerprint in the display in time.

They need to get rid of the display cutout so the solution that doesn't take any real estate on the front will win in the end. Fingerprint will always be somewhat safer too. Ofc cost and power must be factored in and seems highly unlikely that this compares well. Integration could favor a solution over the other too while some might chose multi-factor biometrics. The front cam and its gimmicks should be kept but with a pop-up module that shows its head when the user opens the camera app. The module could host both front and back cams as with a foldable display that fully covers both sides, there is no other solution. Samsung just mentioned that they hope to release a Note with a foldable display next year so it seems that fodable is finally about to arrive - will be fun for PC and tablet sales.

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