Eye gaze tracking techniques for interactive applications
Computer Vision and Image Understanding - Special issue on eye detection and tracking
openEyes: a low-cost head-mounted eye-tracking solution
Proceedings of the 2006 symposium on Eye tracking research & applications
A robust 3D eye gaze tracking system using noise reduction
Proceedings of the 2008 symposium on Eye tracking research & applications
Investigation of Calibration Techniques in Video Based Eye Tracking System
ICCHP '08 Proceedings of the 11th international conference on Computers Helping People with Special Needs
Eye gaze tracking techniques for interactive applications
Computer Vision and Image Understanding - Special issue on eye detection and tracking
Nonlinear mapping of pupil centre coordinates from image sensor to screen for gaze control systems
ICCHP'06 Proceedings of the 10th international conference on Computers Helping People with Special Needs
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We introduce a new method for computing the 3D position of an eye and its gaze direction from a single camera and at least two near infra-red light sources. The method is based on the theory of spherical optical surfaces and uses the Gullstrand model of the eye to estimate the positions of the center of the cornea and the center of the pupil in 3D. The direction of gaze can then be computed from the vector connecting these two points. The point of regard can also be computed from the intersection of the direction of gaze with an object in the scene. We have simulated this model using ray traced images of the eye, and obtained very promising results. The major contribution of this new technique over current eye tracking technology is that the system does not require to be calibrated with the user before each user session, and it allows for free head motion.