Finding an efficient threshold for fixation detection in eye gaze tracking
Conference
Tangnimitchok, S, O-Larnnithipong, N, Barreto, A et al. (2016). Finding an efficient threshold for fixation detection in eye gaze tracking
. EURO-PAR 2011 PARALLEL PROCESSING, PT 1, 9732 93-103. 10.1007/978-3-319-39516-6_9
Tangnimitchok, S, O-Larnnithipong, N, Barreto, A et al. (2016). Finding an efficient threshold for fixation detection in eye gaze tracking
. EURO-PAR 2011 PARALLEL PROCESSING, PT 1, 9732 93-103. 10.1007/978-3-319-39516-6_9
We propose a combined analytical/statistical method to determine an efficient threshold on the dispersion of estimates of the point of gaze (POG) to indicate a user fixation. The experimental data for this study was obtained with an EyeTech TM3 eye gaze tracker (EGT). The experimental protocol to make the user fixate on pre-determined visual targets was implemented using the C language and OpenCV. Subjects first used the system in a training mode, from which an individualized dispersion threshold was obtained. Our approach was verified by applying the individualized threshold to POG data from a second run, in testing mode, with encouraging results.
