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:
Jun. 04, 2019
Filed:
May. 27, 2017
Hangzhou Scantech Co., Ltd, Hangzhou, CN;
Jun Zheng, Hangzhou, CN;
Shangjian Chen, Hangzhou, CN;
Hangzhou Scantech Co., Ltd, Hangzhou, CN;
Abstract
A three-dimensional system includes at least one pattern projector, at least two cameras, a two-dimensional image feature extractor, a three-dimensional point-cloud generator, and a three-dimensional point-cloud verifier. The pattern projector is configured to synchronously project at least two linear patterns. The at least two cameras are configured to synchronously capture a two-dimensional image of the scanned object. The two-dimensional image feature extractor is configured to extract a two-dimensional line set of the at least two linear patterns on the surface of the scanned object on the two-dimensional image. The three-dimensional point-cloud generator is configured to generate the candidate three-dimensional point set based on the two-dimensional line set. The three-dimensional point-cloud verifier is configured to select an authentic three-dimensional point set correctly matching with the projection contour lines on the surface of the object from the candidate three-dimensional point set.