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.

Date of Patent:
Oct. 20, 2020

Filed:

Sep. 17, 2018
Applicant:

Align Technology, Inc., San Jose, CA (US);

Inventors:

Avi Kopelman, Palo Alto, CA (US);

Adi Levin, Nes Tziona, IL;

Ran Katz, Or Yehuda, IL;

Eric Kuo, San Jose, CA (US);

Assignee:

Align Technology, Inc., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61C 9/00 (2006.01); G06T 7/593 (2017.01); A61B 90/00 (2016.01);
U.S. Cl.
CPC ...
A61C 9/0053 (2013.01); A61B 90/39 (2016.02); G06T 7/593 (2017.01); A61B 2090/3937 (2016.02); A61B 2090/3991 (2016.02); G06T 2207/10012 (2013.01); G06T 2207/30036 (2013.01);
Abstract

Data from an intraoral scan is received, the data comprising a plurality of intraoral images of a dental site. At least two intraoral images are identified that comprise a representation of at least a portion of a non-rigid object that was affixed to the dental site at a target area. Image registration is performed between the at least two intraoral images using the non-rigid object identified in the at least two intraoral images. A 3D model of the dental site is generated based on the image registration. A representation of the non-rigid object is subtracted from the 3D model based on the known properties of the non-rigid object. A surface of a portion of the dental site is interpolated where the non-rigid object was located based on a) data for other portions of the dental site and b) the surface of the base of the non-rigid object.


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