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:
Jun. 05, 2018
Filed:
Aug. 10, 2017
National Chiao Tung University, Hsinchu, TW;
Jen-Hui Chuang, Hsinchu, TW;
Tien-Lung Chang, New Taipei, TW;
Mu-Tien Lu, New Taipei, TW;
Yi-Yu Hsieh, Miaoli, TW;
Shih-Wei Yang, Taichung, TW;
NATIONAL CHIAO TUNG UNIVERSITY, Hsinchu, TW;
Abstract
A method and device for fisheye camera automatic calibration is disclosed. A first straight line and a second straight line are respectively moved to generate a first fisheye line and a second fisheye line being straight lines. At least two symmetric points are generated on the second straight line based on an intersection of the first straight line and the second straight line as a symmetric central point, so as to correspondingly generate at least two fisheye symmetric points. The second straight line rotates until a distance between the first fisheye line and each of two fisheye symmetric points is equal. Then, central intersection coordinates, fisheye symmetric coordinates, a fisheye symmetric distance are retrieved and used to calculate fisheye parameters.