Eye Tracking - nolanhergert/HeadlightBlocker GitHub Wiki
NOTE: I don't think this is strictly necessary for a product because the light isn't as painful when you are not looking directly at it. Can also compensate by making the dimming window bigger. We'll find out in practice!
Turns out it's kind of important when you want to do this sort of stuff in a human environment. Especially with glasses close to eye.
Excellent, excellent talk. https://www.youtube.com/watch?v=CnXuZSCd11Q
Pupil is a little easier to parse in infrared. That's why there are a ring of lights generally, for less shadows.
- But can't you just subtract away the contribution of external light by doing two frames? One with light source on, one without. And subtracting.
Why do they care about corneal glint? To distinguish when the head has moved slightly. https://youtu.be/CnXuZSCd11Q?si=B61gHZ6N_PRfAq_A&t=1273
Black 962 Perspex is the black form of acrylic that is transparent to infrared. Used for TV remotes and stuff like that. Also usable is color filters for lights and probably black garbage bags?
- Here is some sourceable stuff too: https://www.eplastics.com/plexiglass/acrylic-sheets/ir-transmitting