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http://dx.doi.org/10.6109/jkiice.2014.18.5.1171

Robust Eye Region Discrimination and Eye Tracking to the Environmental Changes  

Kim, Byoung-Kyun (Dept. of IT Convergence, Graduate School of Hansei University)
Lee, Wang-Heon (Dept. of IT, Hansei University)
Abstract
The eye-tracking [ET] is used on the human computer interaction [HCI] analysing the movement status as well as finding the gaze direction of the eye by tracking pupil's movement on a human face. Nowadays, the ET is widely used not only in market analysis by taking advantage of pupil tracking, but also in grasping intention, and there have been lots of researches on the ET. Although the vision based ET is known as convenient in application point of view, however, not robust in changing environment such as illumination, geometrical rotation, occlusion and scale changes. This paper proposes two steps in the ET, at first, face and eye regions are discriminated by Haar classifier on the face, and then the pupils from the discriminated eye regions are tracked by CAMShift as well as Template matching. We proved the usefulness of the proposed algorithm by lots of real experiments in changing environment such as illumination as well as rotation and scale changes.
Keywords
Robust Eye Tracking; HCI; Haar Classifier; CAMShift; Template Matching; Circular Hough Transformation;
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