Patent ID: 11863875
Assignee: QINGDAO PICO TECHNOLOGY CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. An eyeball tracking method, comprising:
setting a left tracking camera to correspond to a left infrared light source and a right tracking camera to correspond to a right infrared light source;
alternately turning on the left infrared light source and the right infrared light source in sequence according to odd and even numbers, and controlling the left tracking camera and the right tracking camera to correspondingly shoot when the left infrared light source is turned on or the right infrared light source is turned on to form turned-on odd-frame tracking images and turned-on even-frame tracking images;
generating, according to the turned-on odd-frame tracking images and the turned-on even-frame tracking images, turned-off even-frame tracking images and turned-off odd-frame tracking images when the left infrared light source and the right infrared light source are alternately turned off in sequence, comprising:
obtaining position coordinates of an eyeball on the turned-on odd-frame tracking image or the turned-on even-frame tracking image based on the computer vision technology;
estimating a moving direction and a moving speed of the eyeball based on the neural network technology, estimating a moving distance of the eyeball in two frame tracking images based on the moving speed, and constructing a moving vector along the moving direction by taking the position coordinates as an origin and the moving distance as a length;
based on the moving vector, tracking a left eye in turned-off odd-frames to generate the turned-off odd-frame tracking images and tracking a right eye in turned-off even-frames to generate the turned-off even-frame tracking images; and

combining the turned-on odd-frame tracking images and the turned-off even-frame tracking images to form a tracking image of one eye, and combining the turned-on even-frame tracking images and the turned-off odd-frame tracking images to form a tracking image of the other eye, so as to form binocular eyeball tracking data.