Patent ID: 11930157
Assignee: ACER INCORPORATED
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. An eye tracking method, adapted for an eye tracking device comprising a plurality of image capturing elements, and comprising:
obtaining a reference interpupillary distance value;
taking a plurality of images of a user of a 3D display through the image capturing elements, and finding a first eye pixel coordinate corresponding to a first eye of the user and a second eye pixel coordinate corresponding to a second eye of the user in each of the images;
detecting a first eye spatial coordinate of the first eye of the user and a second eye spatial coordinate of the second eye of the user, and determining a plurality of projection coordinates based on the first eye spatial coordinate, the second eye spatial coordinate, and a plurality of optical parameters of the image capturing elements;
determining an optimization condition related to the first eye spatial coordinate and the second eye spatial coordinate based on the first eye pixel coordinate, the second eye pixel coordinate, the projection coordinates, and the reference interpupillary distance value of each of the images; and
optimizing the first eye spatial coordinate and the second eye spatial coordinate based on the optimization condition.