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:
Dec. 16, 2025
Filed:
Jul. 24, 2023
Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangdong, CN;
Tsinghua University, Beijing, CN;
Ruixin Wang, Guangdong, CN;
Haotian Lin, Guangdong, CN;
Feng Xu, Beijing, CN;
Xinping Yu, Guangdong, CN;
Junfeng Lyu, Beijing, CN;
Zhongshan Ophthalmic Center, Sun Yat-Sen University, Guangzhou, CN;
Tsinghua University, Beijing, CN;
Abstract
Disclosed are a method and apparatus for measuring a gaze difference based on gaze estimation. Video data of a testee gazing at a visual target is obtained, and a face image sequence is obtained from the video data. The face image sequence is input into a first neural network for key frame extraction to obtain a first and second gaze position face image. The face images are input into a second neural network for facial feature point extraction. Cropping is performed based on facial feature point coordinates to obtain a first and second eye region image. A gaze difference estimation network is trained to obtain a trained gaze difference estimation network. The first and second eye region images are input into the trained gaze difference estimation network to obtain a predicted gaze difference between the first and second eye region images.