How to get the 3D coordinates of the center of the eyeball?

[Echo-jyt]

Hello, I am very interested in gaze tracking, but I am a newbie. How can I input a video and then get the 3D coordinates of the eye centers for each frame? I would be very grateful if you could answer that for me！

[AbdirayimovS]

Dear @Echo-jyt I spend some time on understanding how to calculate 3D coordinates. I found this very helpful: https://github.com/xucong-zhang/data-preprocessing-gaze/blob/main/normalize_data.py