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:
Oct. 23, 2012
Filed:
Jan. 25, 2008
Chiaki Aoyama, Saitama, JP;
Chiaki Aoyama, Saitama, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
A position detection method and a position detection device for detecting with sufficient accuracy the position or the attitude of an object by using an image of the object captured by a single camera. The position detection method detects the position or the attitude of the object by using a measurement pixel position in images of multiple points on the object, which images are captured by the single camera and have a known positional relationship. The method has a step of acquiring, without consideration of non-pinhole camera properties of the camera and based on the positional relationship between the multiple points and on the measurement pixel position, a position matrix representing rotation and translation of the object, a step of obtaining, with consideration of the non-pinhole camera properties of the camera, a correction pixel position corresponding to the measurement pixel position, a step of adjusting the position matrix so that a difference between the correction pixel position and the measurement pixel position is within a permissible range, and a step of defining, as the estimated position of the object, the position corresponding to the adjusted position matrix.