Development of an eye-gaze input system with high speed and accuracy through target prediction based on homing eye movements

A Murata, T Doi, K Kageyama, W Karwowski - IEEE Access, 2021 - ieeexplore.ieee.org
A Murata, T Doi, K Kageyama, W Karwowski
IEEE Access, 2021ieeexplore.ieee.org
In this study, a method to predict a target on the basis of the trajectory of eye movements and
to increase the pointing speed while maintaining high predictive accuracy is proposed. First,
a predictive method based on ballistic (fast) eye movements (Approach 1) was evaluated in
terms of pointing speed and predictive accuracy. In Approach 1, the so-called Midas touch
problem (pointing to an unintended target) occurred, particularly when a small number of
samples was used to predict a target. Therefore, to overcome the poor predictive accuracy of …
In this study, a method to predict a target on the basis of the trajectory of eye movements and to increase the pointing speed while maintaining high predictive accuracy is proposed. First, a predictive method based on ballistic (fast) eye movements (Approach 1) was evaluated in terms of pointing speed and predictive accuracy. In Approach 1, the so-called Midas touch problem (pointing to an unintended target) occurred, particularly when a small number of samples was used to predict a target. Therefore, to overcome the poor predictive accuracy of Approach 1, we developed a new predictive method (Approach 2) using homing (slow) eye movements rather than ballistic (fast) eye movements. Approach 2 overcame the disadvantage (inaccurate prediction) of Approach 1 by shortening the pointing time while maintaining high predictive accuracy.
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