This is sandbox of webgazer and clmtrackr.
https://webgazer.cs.brown.edu/
@inproceedings{papoutsaki2016webgazer,
author = {Alexandra Papoutsaki and Patsorn Sangkloy and James Laskey and Nediyana Daskalova and Jeff Huang and James Hays},
title = {WebGazer: Scalable Webcam Eye Tracking Using User Interactions},
booktitle = {Proceedings of the 25th International Joint Conference on Artificial Intelligence (IJCAI)},
pages = {3839--3845},
year = {2016},
organization={AAAI}
}
https://github.com/auduno/clmtrackr
GPL v3 fits in WebGazer