An eye tracking system, a head mounted device, a computer program, a carrier and a method in an eye tracking system for determining a refined gaze point of a user are disclosed. In the method a gaze convergence distance of the user is determined. Furthermore, a spatial representation of at least a part of a field of view of the user is obtained and depth data for at least a part of the spatial representation are obtained. Saliency data for the spatial representation are determined based on the determined gaze convergence distance and the obtained depth data, and a refined gaze point of the user is determined based on the determined saliency data.
MACHINE LEARNING BASED GAZE ESTIMATION WITH CONFIDENCE