| 摘要 |
Embodiments are disclosed that relate to tracking a user's eye based on time-of-flight depth image data of the user's eye are disclosed. For example, one disclosed embodiment provides an eye tracking system comprising a light source, a sensing subsystem configured to obtain a two-dimensional image of a user's eye and depth data of the user's eye using a depth sensor having an unconstrained baseline distance, and a logic subsystem configured to control the light source to emit light, control the sensing subsystem to acquire a two-dimensional image of the user's eye while illuminating the light source, control the sensing subsystem to acquire depth data of the user's eye, determine a gaze direction of the user's eye from the two-dimensional image, determine a location on a display at which the gaze direction intersects the display based on the gaze direction and the depth data, and output the location. |
