The human pupil and the use of video-based eyetrackers |
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| Authors: | Harry J. Wyatt |
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| Affiliation: | Biological Sciences, SUNY Optometry, New York, NY, United States |
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| Abstract: | Video-based devices for measuring gaze direction are widespread. However, there is a built-in imprecision in such devices in the event that pupil diameter changes during the experiments. Data are presented to demonstrate this effect. The possibility of correcting eye-position records for the imprecision is discussed and preliminary examples of such correction are presented. |
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| Keywords: | Eyetracker Iris Pupil |
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