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:
Jan. 21, 2025
Filed:
Aug. 03, 2021
Institut National DE LA Recherche Scientifique, Québec, CA;
INSTITUT NATIONAL DE LA RECHERCHE SCIENTIFIQUE, Quebec, CA;
Abstract
A system and a method for high-speed dual-view band-limited illumination profilometry using temporally interlaced acquisition is disclosed. The method comprises using a projecting unit for projecting sinusoidal fringe patterns onto an object and capturing fringe patterns deformed by the object. A 3D image of the object is recovered pixel by pixel from partial images provided by a first camera and a second camera by locating a point in the images of the second camera that matches a selected pixel of the first camera. 3D coordinates and wrapped phase are then estimated based on a calibration of the cameras and determining an horizontal coordinate on the plane of a projector of the projecting unit based on a calibration of the projector, and using a wrapped phase value to recover a 3D point of 3D coordinates (x, y, z).