Eye Tracking with a Cellphone Camera

Eye-tracking technology, which determines where in a visual scene people are directing their gaze, has been widely used in certain areas of medical and scientific research, but cost issues have kept it from finding consumer applications. Researchers at MIT’s Computer Science and Artificial Intelligence Laboratory, together with the University of Georgia, hope to change that with software that can turn any smartphone into an eye-tracking device. In addition to making existing applications of eye-tracking technology more accessible, the system could enable new computer interfaces, or help detect signs of incipient neurological disease or mental illness.