Abstract
This study investigated eye pointing in stereoscopic displays. Ten participants performed 18 tapping tasks in stereoscopic displays with three different levels of parallax (at the screen, 20 cm and 50 cm in front of the screen). The results showed that parallax had significant effects on hand movement time, eye movement time, index of performance in hand click and eye gaze. The movement time was shorter and the performance was better when the target was at the screen, compared to the conditions when the targets were seen at 20 cm and 50 cm in front of the screen. Furthermore, the findings of this study supports that the eye movement in stereoscopic displays follows the Fitts’ law. The proposed algorithm was effective on the eye gaze selection to improve the good fit of eye movement in stereoscopic displays.
Highlights
Today, an interesting research and design topic in human computer interaction is the use of the eye as an input device in graphical user interfaces (Jacob, 1991; Vertegaal, 2008; Ware & Mikaelian, 1987)
One-way repeated measures ANOVA was performed for the three parallax levels on each dependent variable; i.e., hand movement time, eye gaze movement time, error rate, index of performance with hand click and index of performance for eye gaze
We investigated the effect of stereoscopic display on eye pointing movements with a Fitts’ law tapping task
Summary
An interesting research and design topic in human computer interaction is the use of the eye as an input device in graphical user interfaces (Jacob, 1991; Vertegaal, 2008; Ware & Mikaelian, 1987). The use of the eyes as a pointing device has been proposed to improve human quality of life, especially for the disabled, because eye movement involves some of the fastest muscles in the human body (Bobick & Balaban, 2008) and users can detect an object before initiating and moving the hand (Jacob,1991). In addition to the needs of the disabled, using the eye as a potential pointing device is advantageous because the hands of the Received April 30, 2016; Published December 9, 2016 Citation: Lin, C, J., & Widyaningrum, R.
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