Apple FaceID after FFS or HRT?

[lexxy]

This is no way applies to me at the moment, but I just had a though. Perhaps we have enough nerds here where this could be an interesting discussion.

With the advent of face-scanning tech to unlock your phones, has anyone given thought to or experienced their phone not unlocking after FFS?

I'd imagine that with HRT the changes would be so slight and over time that the face scanner would adapt (assuming it is the smart kind that gathers accumulated data).

Thoughts?

[Roll]

Would have to know what it was measuring exactly. But the following link seems to make it out like HRT and FFS might very well be a problem:
http://aestheticmedicalpractitioner.com.au/features/facial-recognition-biometrics-effects-plastic-surgery/

I feel like it wouldn't gather more data, it wouldn't expect your face to change in those ways probably.

[lexxy]

Would have to know what it was measuring exactly. But the following link seems to make it out like HRT and FFS might very well be a problem:
http://aestheticmedicalpractitioner.com.au/features/facial-recognition-biometrics-effects-plastic-surgery/

I feel like it wouldn't gather more data, it wouldn't expect your face to change in those ways probably.

Oh yeah! Based on that article:

Facial recognition works by analysing the characteristics of an individual's face through a digital video camera. It includes measuring the overall facial structure, including distances between eyes, nose, mouth and jaw edges.

These measurements are retained in a database and are used as a comparison when a user stands before the camera. Each individual has over 80 nodal points, which are measured creating a numerical code, called a faceprint, representing the face in the database.

Some of the nodal points measured by facial recognition technology include:
• Distance between the eyes
• Width of the nose
• Depth of the eye sockets
• Shape of the cheekbones
• Length of the jaw line.

and

Variations in pose, expression, illumination, ageing and disguise are considered as major challenges in face recognition and several techniques, including complex face recognition algorithms, have been developed to address these challenges. Plastic surgery, on the other hand, is perceptually considered as an arduous research issue.

It seems even that something as "simple" as skin rejuvenation will throw it for a loop

It was found that because face recognition algorithms generally rely on this information, any variation could affect the recognition performance. For example, the face recognition algorithms could not handle global facial plastic surgery such as skin resurfacing and full face lift because the facial features and texture are drastically altered after surgery.

Also, with major skin resurfacing or procedures to look younger, none of the algorithms were able to correctly classify the faces. Similarly, any change in the local facial regions such as nose, chin, eyelids, cheek, lips and forehead degrades the verification performance.

Something else I hadn't thought of (and am not particularly worried by except as a thought exercise) is false positives. Meaning, Mission Impossible II face ID tricking. Haha.

[Daniellekai]

Something else I hadn't thought of (and am not particularly worried by except as a thought exercise) is false positives. Meaning, Mission Impossible II face ID tricking. Haha.

Or even just showing it a picture. Voice recognition is vulnerable to recordings as well.

[lexxy]

Or even just showing it a picture. Voice recognition is vulnerable to recordings as well.

At least apple's FaceID uses IR light for the reading so a photo wouldn't work. However there are reports that twins or offspring have unlocked phones.