TY - GEN
T1 - Research on feature points positioning in non-contact eye-gaze tracking system
AU - Bei, Yan
AU - Lifeng, Gao
AU - Xigong, Zhang
PY - 2009
Y1 - 2009
N2 - The accuracy and the real time ability of positioning the feature points, including the four reference glints and the center of the eye pupil, are essential to the eye-gaze tracking system based on the cross-ratio. In the paper, in order to handle the two issues in the images to be processed, that is, the similar gray values and the low resolution, an algorithm of feature points positioning with strong adaptability is proposed, namely, using the improved Otsu method for detecting the glints, and adopting a method combining emitting rays with ellipse fitting for positioning the center of the pupil. Some experiments are performed on the non-contact eye-gaze tracking system on a VC ++ 6.0 platform, and the results show that: when the eye is located 70cm in front of the screen (33cm x 26cm), 30 x 25 points can be distinguished, and the processing requires only 16ms on average.
AB - The accuracy and the real time ability of positioning the feature points, including the four reference glints and the center of the eye pupil, are essential to the eye-gaze tracking system based on the cross-ratio. In the paper, in order to handle the two issues in the images to be processed, that is, the similar gray values and the low resolution, an algorithm of feature points positioning with strong adaptability is proposed, namely, using the improved Otsu method for detecting the glints, and adopting a method combining emitting rays with ellipse fitting for positioning the center of the pupil. Some experiments are performed on the non-contact eye-gaze tracking system on a VC ++ 6.0 platform, and the results show that: when the eye is located 70cm in front of the screen (33cm x 26cm), 30 x 25 points can be distinguished, and the processing requires only 16ms on average.
KW - Ellipse fitting
KW - Eye-gaze tracking
KW - Feature points positioning
KW - The Otsu method
UR - https://www.scopus.com/pages/publications/71549151673
U2 - 10.1109/ICEMI.2009.5274115
DO - 10.1109/ICEMI.2009.5274115
M3 - 会议稿件
AN - SCOPUS:71549151673
SN - 9781424438624
T3 - ICEMI 2009 - Proceedings of 9th International Conference on Electronic Measurement and Instruments
SP - 41042
EP - 41045
BT - ICEMI 2009 - Proceedings of 9th International Conference on Electronic Measurement and Instruments
T2 - 9th International Conference on Electronic Measurement and Instruments, ICEMI 2009
Y2 - 16 August 2009 through 19 August 2009
ER -