The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 01, 2022
Filed:
Dec. 27, 2021
Industrial Technology Research Institute, Hsinchu, TW;
Yu-Ying Lan, Hsinchu, TW;
Jui-Feng Huang, Hsinchu, TW;
INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE, Hsinchu, TW;
Abstract
A gaze tracking method includes the following steps. Firstly, a to-be-analyzed facial image is captured. Then, whether the to-be-analyzed facial image conforms to a customized 3D face model is determined If not, a customized 3D face model of the to-be-analyzed facial image is created. If yes, an eye area image of the to-be-analyzed facial image is obtained. Then, according to the customized 3D face model and the to-be-analyzed facial image, head posture information is obtained. Then, an eye camera coordinate value referenced to a camera coordinate system is obtained. Then, the eye camera coordinate value is converted into an eye frame coordinate value referenced to a display frame coordinate system. Then, according to the eye frame coordinate value, the head posture information and an eyeball radius, an eyeball center point coordinate value is obtained, and accordingly a gaze coordinate value is obtained.