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:
Aug. 26, 2025
Filed:
Aug. 29, 2022
Daihen Corporation, Osaka, JP;
Makoto Ikeguchi, Osaka, JP;
DAIHEN Corporation, Osaka, JP;
Abstract
Provided is a marker detection apparatus able to detect the position of a marker with high accuracy and a robot teaching system using the same. A marker detection apparatus includes: an image generation unit that superimposes point group data, acquired by a 3D camera and photographed from a viewpoint same as a viewpoint of a 2D camera, on image data acquired by the 2D camera, thereby generating a combined image; a marker position calculation unit that detects a marker and calculates a position of the marker on a basis of the image data; a plane detection unit that detects a plane on a basis of the point group data; a marker plane determination unit that determines a marker plane on a basis of point group data included in a region of the marker detected from the position of the marker calculated by the marker position calculation unit and the plane detected by the plane detection unit; and a marker position correction unit that projects the position of the marker, calculated by the marker position calculation unit, onto the marker plane, thereby correcting the position of the marker.