Improving the Accuracy and Reliability of Remote System-Calibration-Free Eye-Gaze Tracking

Remote eye-gaze tracking provides a means for nonintrusive tracking of the point-of-gaze (POG) of a user. For application as a user interface for the disabled, a remote system that is noncontact, reliable, and permits head motion is very desirable. The system-calibration-free pupil-corneal reflection (P-CR) vector technique for POG estimation is a popular method due to its simplicity, however, accuracy has been shown to be degraded with head displacement. Model-based POG-estimation methods were developed, which improve system accuracy during head displacement, however, these methods require complex system calibration in addition to user calibration. In this paper, the use of multiple corneal reflections and point-pattern matching allows for a scaling correction of the P-CR vector for head displacements as well as an improvement in system robustness to corneal reflection distortion, leading to improved POG-estimation accuracy. To demonstrate the improvement in performance, the enhanced multiple corneal reflection P-CR method is compared to the monocular and binocular accuracy of the traditional single corneal reflection P-CR method, and a model-based method of POG estimation for various head displacements.

[1]  Robert J. K. Jacob,et al.  Eye tracking in human-computer interaction and usability research : Ready to deliver the promises , 2002 .

[2]  Andrew W. Fitzgibbon,et al.  Direct Least Square Fitting of Ellipses , 1999, IEEE Trans. Pattern Anal. Mach. Intell..

[3]  Thomas Martinetz,et al.  A software framework for simulating eye trackers , 2008, ETRA.

[4]  Worthy N. Martin,et al.  Human-computer interaction using eye-gaze input , 1989, IEEE Trans. Syst. Man Cybern..

[5]  Yongqin Cui,et al.  Gaze tracking accuracy in humans: Two eyes are better than one , 2006, Neuroscience Letters.

[6]  Marilyn Tremaine.  CHI '00 Extended Abstracts on Human Factors in Computing Systems , 2000, CHI Extended Abstracts.

[7]  David Beymer,et al.  Eye gaze tracking using an active stereo head , 2003, 2003 IEEE Computer Society Conference on Computer Vision and Pattern Recognition, 2003. Proceedings..

[8]  Zhiwei Zhu,et al.  Real-time eye detection and tracking under various light conditions , 2002, ETRA.

[9]  Jean-Yves Bouguet,et al.  Camera calibration toolbox for matlab , 2001 .

[10]  Peter D. Lawrence,et al.  Fixation Precision in High-Speed Noncontact Eye-Gaze Tracking , 2008, IEEE Transactions on Systems, Man, and Cybernetics, Part B (Cybernetics).

[11]  Yoshinobu Ebisawa,et al.  Effectiveness of pupil area detection technique using two light sources and image difference method , 1993, Proceedings of the 15th Annual International Conference of the IEEE Engineering in Medicine and Biology Societ.

[12]  Peter D. Lawrence,et al.  A single camera eye-gaze tracking system with free head motion , 2006, ETRA.

[13]  Laura Chamberlain.  Eye Tracking Methodology; Theory and Practice , 2007 .

[14]  Zhiwei Zhu,et al.  Combining Kalman filtering and mean shift for real time eye tracking under active IR illumination , 2002, Object recognition supported by user interaction for service robots.

[15]  Juan J. Cerrolaza,et al.  Taxonomic study of polynomial regressions applied to the calibration of video-oculographic systems , 2008, ETRA.

[16]  Naoki Mukawa,et al.  A free-head, simple calibration, gaze tracking system that enables gaze-based interaction , 2004, ETRA.

[17]  G. de Jager,et al.  A survey of point pattern matching techniques and a new approach to point pattern recognition , 1992, Proceedings of the 1992 South African Symposium on Communications and Signal Processing.

[18]  Robert J. K. Jacob,et al.  Eye Movement-Based Human-Computer Interaction Techniques: Toward Non-Command Interfaces , 2003 .

[19]  Carlos Hitoshi Morimoto,et al.  Pupil detection and tracking using multiple light sources , 2000, Image Vis. Comput..

[20]  Qiang Ji,et al.  Real-Time Eye, Gaze, and Face Pose Tracking for Monitoring Driver Vigilance , 2002, Real Time Imaging.

[21]  Sheng-Wen Shih,et al.  A novel approach to 3-D gaze tracking using stereo cameras , 2004, IEEE Trans. Syst. Man Cybern. Part B.

[22]  Carlos Hitoshi Morimoto,et al.  Eye gaze tracking techniques for interactive applications , 2005, Comput. Vis. Image Underst..

[23]  Susan K. Schnipke,et al.  Trials and tribulations of using an eye-tracking system , 2000, CHI Extended Abstracts.

[24]  Roger Y. Tsai,et al.  A versatile camera calibration technique for high-accuracy 3D machine vision metrology using off-the-shelf TV cameras and lenses , 1987, IEEE J. Robotics Autom..

[25]  Tommy Strandvall,et al.  Eye Tracking in Human-Computer Interaction and Usability Research , 2009, INTERACT.

[26]  Hong Hua,et al.  Video-based eyetracking methods and algorithms in head-mounted displays. , 2006, Optics express.