A free-head, simple calibration, gaze tracking system that enables gaze-based interaction
Proceedings of the 2004 symposium on Eye tracking research & applications
Implicit Calibration of a Remote Gaze Tracker
CVPRW '04 Proceedings of the 2004 Conference on Computer Vision and Pattern Recognition Workshop (CVPRW'04) Volume 8 - Volume 08
Eye gaze tracking techniques for interactive applications
Computer Vision and Image Understanding - Special issue on eye detection and tracking
A single camera eye-gaze tracking system with free head motion
Proceedings of the 2006 symposium on Eye tracking research & applications
Models for gaze tracking systems
Journal on Image and Video Processing
Homography normalization for robust gaze estimation in uncalibrated setups
Proceedings of the 2010 Symposium on Eye-Tracking Research & Applications
Error characterization and compensation in eye tracking systems
Proceedings of the Symposium on Eye Tracking Research and Applications
Evaluation of pupil center-eye corner vector for gaze estimation using a web cam
Proceedings of the Symposium on Eye Tracking Research and Applications
Study of Polynomial Mapping Functions in Video-Oculography Eye Trackers
ACM Transactions on Computer-Human Interaction (TOCHI)
Improving Head Movement Tolerance of Cross-Ratio Based Eye Trackers
International Journal of Computer Vision
The effect of mapping function on the accuracy of a video-based eye tracker
Proceedings of the 2013 Conference on Eye Tracking South Africa
A new mapping function to improve the accuracy of a video-based eye tracker
Proceedings of the South African Institute for Computer Scientists and Information Technologists Conference
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Of gaze tracking techniques, video-oculography (VOG) is one of the most attractive because of its versatility and simplicity. VOG systems based on general purpose mapping methods use simple polynomial expressions to estimate a user's point of regard. Although the behaviour of such systems is generally acceptable, a detailed study of the calibration process is needed to facilitate progress in improving accuracy and tolerance to user head movement. To date, there has been no thorough comparative study of how mapping equations affect final system response. After developing a taxonomic classification of calibration functions, we examine over 400,000 models and evaluate the validity of several conventional assumptions. The rigorous experimental procedure employed enabled us to optimize the calibration process for a real VOG gaze tracking system and, thereby, halve the calibration time without detrimental effect on accuracy or tolerance to head movement.