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:
May. 31, 2022
Filed:
Jul. 18, 2018
Hitachi Automotive Systems, Ltd., Hitachinaka, JP;
Hitachi Astemo, Ltd., Hitachinaka, JP;
Abstract
Provided is a stereo camera that is capable of reducing the distance error created by entrance pupil center movement between different principal ray angles of incidence. In the present invention, imaging system unitimages a standard image of an object. Imaging system unitimages a reference image of the object. A geometric correction information storage unitstores geometric correction information for the standard image and reference image, which each have error depending on the differences between the positions of the object in the standard image and reference image if the entrance pupil center indicating the point of intersection between the principal ray and optical axis moves according to the angle of incidence and the positions of the object in the standard image and reference image if it is assumed that the entrance pupil center does not move according to the angle of incidence. The geometric correction unitgeometrically corrects the standard image and reference image using the geometric correction information.