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by allanrbo·5y ago·view on hn ↗
Impressive what can now be done with such precision with just a regular webcam. Previously special hardware like the Tobii eyetracker was required for this level of precision.
1 comments
This is a neat trick, but the precision is gonna be horrid with that approach. And it'll be needed to be tuned a lot for each new user.

Special hardware has never been really needed. Just a camera close enough to the eye. IR leds and filters can be added for some convenience.

Only thing special about Tobii etc hardware is the pricetag.