Estimating point-of-regard based on cross-ratio method using 3D eyeball model

Abstract

We have been studied the eye tracking method using the multispectral camera which can capture near-infrared and color images. In this paper, we propose a cross-ratio method using 3D eye model for integrating to the multispectral camera toward to hybrid eye tracking. The pointof-regard is estimated on a display which infrared light sources are attached. In the proposed method, the corneal curvature is considered, and the accuracy of the estimated point-of-regard is improved.