The ITU Gaze Tracker is an open-source gaze tracking application that aims to provide a low-cost alternative to commercial gaze tracking systems and to make this technology more accessible. It is being developed by the Gaze Group at the IT University of Copenhagen, supported by the Communication by Gaze Interaction Association (COGAIN). The eye tracking software is video-based, and any camera equipped with infrared nightvision can be used, such as a videocamera or a webcam.
San Agustin, J., Skovsgaard, H., Hansen, J. P., and Hansen, D. W. 2009. Low-cost gaze interaction: ready to deliver the promises. In Proceedings of the 27th international Conference Extended Abstracts on Human Factors in Computing Systems (Boston, MA, USA, April 04 – 09, 2009). CHI EA ’09. ACM, New York, NY, 4453-4458. DOI= http://doi.acm.org/10.1145/1520340.1520682