Eye tracking module and tracking method thereof, virtual reality device

Abstract

The invention provides an eyeball tracking module. The module comprises an infrared light source assembly, a first infrared reflecting component, a second infrared reflecting component and an infraredcamera assembly; the infrared light source assembly is used for transmitting an infrared ray to eyeballs; the first infrared reflecting component is used for conducting reflecting for the second timeon the infrared ray which is reflected for the first time, and images of the eyeballs are transmitted to the second infrared reflecting component together with the second reflection of the infrared ray; the second infrared reflecting component is used for conducting reflecting for the third time on the infrared ray which is reflected for the second time, and the images of the eyeballs are transmitted to the infrared camera assembly together with the third reflection of the infrared ray. By means of the module, the eyeball images analyzed by the module has smaller aberration, distortion can beeliminated to improve the clearness of the images, computation amount of image processing is reduced, and therefore the tracking accuracy and speed of the eyeballs are improved.

Description

technical field [0001] The present invention relates to the field of eye tracking technology and image processing technology, in particular to an eye tracking module, a tracking method thereof, and a virtual reality device. Background technique [0002] Eye tracking is a technology that uses mechanical, electronic, optical and other detection methods to obtain the subject's current "gaze direction". When people's eyes look in different directions, there will be subtle changes in the eyes, and these changes will produce features that can be extracted. The computer can extract these features through image capture or scanning, so as to track changes in the eyes in real time and predict the user's status and demand, and respond to it, to achieve the purpose of controlling the device with eyes. [0003] With the rapid development of computer vision, artificial intelligence technology and digital technology, eye tracking technology has become a current hot research field, which i...

AI Technical Summary

Problems solved by technology

In addition, other image acquisition devices, such as cameras on computers or mobile phones, can also achieve eye tracking with the support of software, but there are differences in accuracy, speed and stability

[0004] However, there are large aberrations and distortions in the infrared eye tracking equipment of the existing virtual reality equipment, resulting in insufficient clarity of the image collected by the infrared camera, and the existence of image distortion, which leads to an increase in the calculation amount of the post-image processing and reduces the Eye tracking accuracy and speed

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