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

Claim 6:
7. An eyeball tracking system, configured to implement the eyeball tracking method of claim 1, the eyeball tracking system comprising eyeball tracking modules, infrared light sources, a tracking controller, and a data processor arranged in an integrated virtual reality device, wherein
the eyeball tracking modules comprise a left tracking camera and a right tracking camera;
the infrared light sources comprise a left infrared light source and a right infrared light source, wherein the left tracking camera corresponds to the left infrared light source and the right tracking camera corresponds to the right infrared light source;
the tracking controller is configured to control to turn on and turn off the left infrared light source and the right infrared light source, so that the left infrared light source and the right infrared light source are alternately turned on in sequence according to odd and even numbers;
and control 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;
the data processor is configured to:
generate, 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; and, 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
combine the turned-on odd-frame tracking images and the turned-off even-frame tracking images to form a tracking image of one eye, and combine 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.