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. 16, 2016
Filed:
Nov. 10, 2010
Tadashi Hayashi, Yokohama, JP;
Tadashi Hayashi, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
A field of view available for stereo measurement is expanded using a field of view other than a common field of view. To this end, a plane (plane e) including a corresponding point (xa) on a sensor plane of a first camera, which corresponds to a feature point (X), a focal position (F) of the first camera, and a focal position (F) of the second camera is calculated; a first line (straight line E) that is a line of intersection of the plane (plane e) and a plane including a sensor plane of the second camera is calculated; a second line (straight line G) including a corresponding point group on the sensor plane of the second camera, which corresponds to a feature point group, is calculated; an intersection of the first and second lines is calculated as a corresponding point (xb) on the plane including the sensor plane of the second camera, which corresponds to the feature point (X); and three-dimensional coordinates of the feature point (X) are calculated based on the corresponding points (xa, xb).