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:
Sep. 30, 2025
Filed:
Sep. 14, 2023
Canon Kabushiki Kaisha, Tokyo, JP;
Tomohiro Tateishi, Tokyo, JP;
CANON KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A line-of-sight detecting apparatus includes a processor configured to acquire an estimated gaze point position of a user on a display element based on an eyeball image, perform calibration for the estimated gaze point position to reduce a difference between the estimated gaze point position and an actual gaze point position of the user, determine whether or not the calibration is to be performed again based on a difference between a first pupil diameter of the user when the calibration was performed and a second pupil diameter of the user when the estimated gaze point position was acquired based on an eyeball image acquired after the calibration, notify the user of information about performing again the calibration in a case where it is determined that the calibration is to be performed again, and perform again the calibration in a case where it is determined that the user has instructed to perform again the calibration according to notified information.