Pupil diameter measurements: untapped potential to enhance computer interaction for eye tracker users?

Authors:
Armando Barreto;Ying Gao;Malek Adjouadi
Affiliations:
Florida International University, Miami, FL;Florida International University, Miami, FL;Florida International University, Miami, FL
Venue:
Proceedings of the 10th international ACM SIGACCESS conference on Computers and accessibility
Year:
2008

Citing 2
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Abstract

In this paper, we propose the possibility of using real-time pupil diameter measurements, which are provided by most Eye Gaze Tracking (EGT) systems utilized for computer input by many individuals with severe motor impairments, to obtain an on-line estimation of the quality of the interaction with the computer, as perceived by the user. Increased computational power available to process, in real-time, pupil diameter data could, in the future, enable an assessment of the level of frustration (stress) that an EGT user may experience when the quality of the interaction deteriorates. This would be a critical first step in the direction of enabling EGT systems to initiate a re-calibration process, under those circumstances.