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:
Jul. 01, 2025
Filed:
Dec. 26, 2024
Guangdong University of Technology, Guangzhou, CN;
Jian Gao, Guangzhou, CN;
Jinhui Zheng, Guangzhou, CN;
Zhuojun Zheng, Guangzhou, CN;
Lanyu Zhang, Guangzhou, CN;
GUANGDONG UNIVERSITY OF TECHNOLOGY, Guangzhou, CN;
Abstract
A line-scan camera calibration method based on an auxiliary camera, including: calibrating the auxiliary camera, rigidly combining the auxiliary camera with a line-scan camera and installing the combined camera onto a motion platform, and placing a checkerboard calibration board within an imaging area of the combined camera; driving a motion platform to capture images and dynamic scanning images of the checkerboard calibration board, calculating a motion vector of the combined camera; calculating coordinates of registration points; fitting an equation of an imaging plane using coordinates of multiple registration points in the auxiliary camera coordinate system; calculating internal parameters of the line-scan camera and a rigid transformation matrix between the auxiliary camera and the line-scan camera based on properties of a rotation matrix and the line-scan camera imaging model. This application improves the calibration accuracy of the line-scan camera.