Title:
GAZE TRACKING METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2022/032911
Kind Code:
A1
Abstract:
A gaze tracking method and apparatus, relating to the technical field of computer vision, and capable of effectively improving accuracy of visual axis direction estimation. The method comprises: obtaining a texture image and three-dimensional point cloud data of a user's face (S101); determining corneal center coordinates and eyeball center coordinates of user's eyes according to the texture image and the three-dimensional point cloud data (S102); determining an optical axis direction according to the corneal center coordinates and the eyeball center coordinates (S103); and determining a visual axis direction according to an angle difference between the optical axis direction and an optical visual axis direction (S104). By obtaining texture images and three-dimensional point cloud data, real-time tracking of user's gaze is achieved, and accuracy of optical axis direction determination is improved, thereby achieving accurate tracking of the visual axis direction, thus improving accuracy of eye control operation and interaction to a certain extent.
Inventors:
SONG ZHAN (CN)
YE YUPING (CN)
ZHAO JUAN (CN)
YE YUPING (CN)
ZHAO JUAN (CN)
Application Number:
PCT/CN2020/129536
Publication Date:
February 17, 2022
Filing Date:
November 17, 2020
Export Citation:
Assignee:
SHENZHEN INST OF ADV TECH CAS (CN)
International Classes:
G06F3/01; G06K9/00
Foreign References:
| CN109544640A | 2019-03-29 | |||
| CN110750157A | 2020-02-04 | |||
| CN105094337A | 2015-11-25 | |||
| CN108985172A | 2018-12-11 |
Other References:
LI, YONGQIANG: "Research on Eye Tracking Technology for Head Mounted Display", INFORMATION SCIENCE & TECHNOLOGY, CHINA MASTER’S THESES FULL-TEXT DATABASE, 15 February 2020 (2020-02-15), pages 1 - 62, XP055900293
KAR ANURADHA; CORCORAN PETER: "A Review and Analysis of Eye-Gaze Estimation Systems, Algorithms and Performance Evaluation Methods in Consumer Platforms", IEEE ACCESS, vol. 5, 1 January 1900 (1900-01-01), USA , pages 16495 - 16519, XP011660002, DOI: 10.1109/ACCESS.2017.2735633
KAR ANURADHA; CORCORAN PETER: "A Review and Analysis of Eye-Gaze Estimation Systems, Algorithms and Performance Evaluation Methods in Consumer Platforms", IEEE ACCESS, vol. 5, 1 January 1900 (1900-01-01), USA , pages 16495 - 16519, XP011660002, DOI: 10.1109/ACCESS.2017.2735633
Attorney, Agent or Firm:
BEIJING ZHONG XUN TONG DA INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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