Forums - Gaming Discussion - HTC VR announcements CES 2019 - Vive Pro Eye, Vive Cosmos

Kerotan said:
Lafiel said:

Eyetracking cams usually work with an array of infra-red lights around the eyes and infra-red cams tracking the pupil movements (~250Hz seems to be the magic number to enable FovR). Smartphone (visible light) cams probably won't get enough light to reliably track the pupil, especially at 240+ images per sec. Btw I've yet to see a phone with cams at both ends of the display.

Is that not bad for your eyes having infra-red lights shining into them? 

Sun light contains infra-red....
Point a remote at your eyes, it doesn't hurt :)



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SvennoJ said:
Kerotan said:

Is that not bad for your eyes having infra-red lights shining into them? 

Sun light contains infra-red....
Point a remote at your eyes, it doesn't hurt :)

Haha when I wrote the comment I was thinking back to physics class. I'd a feeling I'd be pulled up on it! 



Lafiel said:

Btw I've yet to see a phone with cams at both ends of the display.

Do you really need both ends, though? One could be enough to reasonably predict the focus of the other as well - at least enough for the general area for foveation, even if it may not be precise enough for something like aiming. Obviously bespoke hardware would be better, but it could be enough for the entry level.

https://www.youtube.com/watch?v=nUJ77weGvng



TallSilhouette said:
Lafiel said:

Btw I've yet to see a phone with cams at both ends of the display.

Do you really need both ends, though? One could be enough to reasonably predict the focus of the other as well - at least enough for the general area for foveation, even if it may not be precise enough for something like aiming. Obviously bespoke hardware would be better, but it could be enough for the entry level.

https://www.youtube.com/watch?v=nUJ77weGvng

You need a front facing one for head tracking, one facing your eyes to track your pupils. You can turn your head to the right and your pupils to the left independently!

Blinking to select, how does it filter out natural blinks, and won't that get tiring. Just imagine playing those click thousand times a minute games :)



^ Merely a proof of concept.