Abstract：In order to improve the accuracy of the system. The screen is divided into 6 rows and 8 columns, a total of 48 areas. Calibration points are set in the center of each area, and the tester looks at each calibration point in turn to calculate the 48 errors. The errors are decomposed into X-axis and Y-axis errors, and then the X-axis and Y-axis errors are used as calibration values and are interpolated to obtain the X-axis and Y-axis calibration values for any position within the entire screen. At last, X-axis and Y-axis calibration values are used to correct the X-axis and Y-axis coordinates of fixation point. Compared with the current better calibration method, the X-axis error is reduced by 35.8%, and the Y-axis error is reduced by 53.3%. The correction effect of this correction method is significantly improved, which can effectively improve the accuracy of eye tracking.
胡锴,穆平安,黄世龙. 基于角膜反射法的视线追踪系统的视线落点校正研究[J]. 计量学报, 2022, 43(3): 331-337.
HU Kai,MU Ping-an,HUANG Shi-long. Research on Correction of Fixation Point of Corneal-reflection-based Eye Tracking System. Acta Metrologica Sinica, 2022, 43(3): 331-337.
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2022, Vol. 43 
