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. 25, 2007
Filed:
Mar. 12, 2004
Hiroaki Nakai, Kanagawa, JP;
Masayuki Maruyama, Kanagawa, JP;
Duangmanee Putthividhya, San Diego, CA (US);
Hiroaki Nakai, Kanagawa, JP;
Masayuki Maruyama, Kanagawa, JP;
Duangmanee Putthividhya, San Diego, CA (US);
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
The stereo calibration apparatus includes an image input device inputting an image from each of two image pickup devices, a straight-line detector detecting at least four straight lines from each of two input images, a straight-line correspondence detector detecting at least four sets of corresponding lines by using an image feature in a neighboring area of the straight line, and a transformation matrix calculator calculating a transformation matrix between two image pickup devices from the sets of corresponding lines.