A method for visually tracking a gaze point of human eyes, comprising: a host vehicle periodically receives position coordinates of human eyes of a host vehicle driver and gaze point coordinates of human eye line of sight on the inner side of a current projection screen, which are provided by a visual tracking device; the host vehicle screens out the refractive index and curvature of the current projection screen, obtains, in combination with the position coordinates of the human eyes and the gaze point coordinates of the human eye line of sight on the inner side of the current projection screen, gaze point coordinates of the human eye line of sight on the outer side of the current projection screen and a corresponding refraction optical path formed by refracting the human eye line of sight outwards, and further obtains a final gaze point of the human eye line of sight on the corresponding refractive optical path and coordinates thereof in combination with a preset conventional sight distance of human eyes.
METHOD FOR VISUALLY TRACKING GAZE POINT OF HUMAN EYES, AND VEHICLE EARLY-WARNING METHOD AND APPARATUS