Pupil size influences the eye-tracker signal during saccades
نویسندگان
چکیده
منابع مشابه
Pupil size influences the eye-tracker signal during saccades
While it is known that scleral search coils-measuring the rotation of the eye globe--and modern, video based eye trackers-tracking the center of the pupil and the corneal reflection (CR)--produce signals with different properties, the mechanisms behind the differences are less investigated. We measure how the size of the pupil affects the eye-tracker signal recorded during saccades with a commo...
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Eye tracking technologies offer sophisticated methods for capturing humans’ gaze direction but their popularity in multimedia and computer graphics systems is still low. One of the main reasons for this are the high cost of commercial eye trackers that comes to 25,000 euros. Interestingly, this price seems to stem from the costs incurred in research rather than the value of used hardware compon...
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The ability to generate flexible behaviors to accommodate changing goals in response to identical sensory stimuli is a signature that is inherited in humans and higher-level animals. In the oculomotor system, this function has often been examined with the anti-saccade task, in which subjects are instructed, prior to stimulus appearance, to either automatically look at the peripheral stimulus (p...
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A new method has been developed for accurate shape analysis of the elliptical contour of a human’s pupil in images captured by a special infrared CCD video camera. The method is an effective combination of edge detection algorithms, a labelling method and a least squares fitting technique. The method is robust (eyes of different human races) and allows to trace the random movements of the pupil...
متن کاملPupil size and retinal straylight in the normal eye.
PURPOSE Glare problems originating from bright lights are generally experienced more strongly at night. The typical disability glare is known to result from retinal straylight. In this study, the effects of pupil diameter and, especially in the case of small pupils, of eye wall translucency on the amount of retinal straylight were investigated. METHODS Straylight was measured as a function of...
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ژورنال
عنوان ژورنال: Vision Research
سال: 2016
ISSN: 0042-6989
DOI: 10.1016/j.visres.2016.01.009