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How to Teach an Iris Scanner That the Eye It’s Looking at Is Dead

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21–30 of 54 posts

Re: How to Teach an Iris Scanner That the Eye It’s Looking at Is Dead

#21

Earlier quoted context omitted.

You could replicate that with an eyeball mounted on gimbals.

Sure, you could replicate anything given enough budget. It wouldn't be trivial, as saccades and blinks are among the fastest motions made by the human body.

>Sure, you could replicate anything given enough budget

You just killed a person and extracted their eyes to use to open some door. I think you have the budget for something that you can make for $200 with Lego Technic...

Re: How to Teach an Iris Scanner That the Eye It’s Looking at Is Dead

#22
post #3

Preventative tech inspired by action/spy movies. Neat

How do you know it’s preventative... I have a feeling it already happened but they won’t tell

Preventive by nature (tech used to prevent intrusions using such method), not by timeline (tech used before the first such intrusion attempt to prevent it from ever happening).

Re: How to Teach an Iris Scanner That the Eye It’s Looking at Is Dead

#23
post #2

> The method we developed images the eye multiple times to see whether it’s actually responding to changes in brightness This is new? In 2019? Really? I find that so hard to believe. > the process takes about 3 seconds WHAAAAT? WHY? > For comparison, even iris-recognition systems that require just one snapshot usually take about that much time to make an identification. I feel like Robin Williams fresh out of Jumanji…

[deleted]

Re: How to Teach an Iris Scanner That the Eye It’s Looking at Is Dead

#25
post #21

Earlier quoted context omitted.

Sure, you could replicate anything given enough budget. It wouldn't be trivial, as saccades and blinks are among the fastest motions made by the human body.

> Sure, you could replicate anything given enough budget You just killed a person and extracted their eyes to use to open some door. I think you have the budget for something that you can make for $200 with Lego Technic...

[deleted]

Re: How to Teach an Iris Scanner That the Eye It’s Looking at Is Dead

#26

Wouldn't it be trivial to detect a pulse with IR similar to how it's done with other devices?

I remember an Iris scanner demo from 20 years ago that worked because of the characteristic flutter / vibration of the iris as much as the pattern of the iris itself. As I remember it it didn't work well with high pigment eyes (it worked brilliantly with blue eyes, less well with everyone else).

Re: How to Teach an Iris Scanner That the Eye It’s Looking at Is Dead

#27
post #2

> The method we developed images the eye multiple times to see whether it’s actually responding to changes in brightness This is new? In 2019? Really? I find that so hard to believe. > the process takes about 3 seconds WHAAAAT? WHY? > For comparison, even iris-recognition systems that require just one snapshot usually take about that much time to make an identification. I feel like Robin Williams fresh out of Jumanji…

A possibility would be that you might want to make multiple changes in light level at random intervals to make it harder for e.g, a video being presented to the camera that matches the input it would expect.

Re: How to Teach an Iris Scanner That the Eye It’s Looking at Is Dead

#28

> The method we developed images the eye multiple times to see whether it’s actually responding to changes in brightness Hopefully the person does not have Argyll Robertson pupils https://en.wikipedia.org/wiki/Argyll_Robertson_pupil which is seen in late stage syphilis and causes the pupil not to react to the light. Also, another thing is that they should make sure that they train their system with dark eyed people.…

Surely at that point it's correctly detecting they're "mostly dead"?

Re: How to Teach an Iris Scanner That the Eye It’s Looking at Is Dead

#29
post #21

Earlier quoted context omitted.

Sure, you could replicate anything given enough budget. It wouldn't be trivial, as saccades and blinks are among the fastest motions made by the human body.

> Sure, you could replicate anything given enough budget You just killed a person and extracted their eyes to use to open some door. I think you have the budget for something that you can make for $200 with Lego Technic...

If you're bad enough to kill a person with the desired eyeball, you might as well unlock the door with them before you kill, with a few threats and promises. (pretty ugly thought)

Re: How to Teach an Iris Scanner That the Eye It’s Looking at Is Dead

#30
post #21

Earlier quoted context omitted.

> Sure, you could replicate anything given enough budget You just killed a person and extracted their eyes to use to open some door. I think you have the budget for something that you can make for $200 with Lego Technic...

If you're bad enough to kill a person with the desired eyeball, you might as well unlock the door with them before you kill, with a few threats and promises. (pretty ugly thought)

Doesn't work in e.g a lock chamber, which would ensure only one person is in it (which has it's own issues, e.g. weighting is more complicated than it looks).
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