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:
Feb. 23, 2021
Filed:
Jul. 12, 2019
Gal Sela, Toronto, CA;
Kamyar Abhari, Toronto, CA;
Gal Sela, Toronto, CA;
Kamyar Abhari, Toronto, CA;
Synaptive Medical Inc., Toronto, CA;
Abstract
A method for calibrating an optical axis of a camera mounted to a movable structure is disclosed. The method includes: for each of two or more standoff distances for the camera: capture, using the camera, image data of a target marker while the movable structure is undergoing rotation about a fixed axis, the target marker being a grid of squares each including unique detectable features; determine a respective center of rotation based on the captured image data; determine a first axis which goes through the centers of rotation; and determine a transform between the first axis and a second axis through the center of output image of the camera.