GAZE TRACKING DEVICE AND A HEAD MOUNTED DEVICE EMBEDDING SAID GAZE TRACKING DEVICE

摘要

The present disclosure generally relates to a gaze tracking device. Gaze tracking is a process of measuring either the point of regard or the motion of an eye relatively to the head of a person. A gaze tracking device is a device capable of measuring eye positions and eye movement. In order to track the gaze of a person, infra-red light is projected into the user's eye. Utilizing the primary Purkinje reflection and the pupil-masked reflection, the position of the eye of the user is determined. The gaze tracking devices running such a tracking method offer a limited field of view due to the illumination scheme combined with the geometry of the reflected images. It is proposed a gaze tracking device embedding a light-field camera. Such a gaze tracking device may be embedded in a head mounted device.

主权项

1. A gaze tracking device comprising:
a plurality of light sources arranged to project infra-red light on a surface of an eye of a user of said gaze tracking device and a light-field camera for capturing the infra-red light reflected off the surface of the eye of the user.