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:
Nov. 12, 2024

Filed:

Jan. 19, 2024
Applicant:

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

Inventors:

Ofer Saphier, Rechovot, IL;

Tal Levy, Rehovot, IL;

Gal Peleg, Kiryat-Ono, IL;

Eliran Dafna, Beer-sheva, IL;

Sergei Ozerov, Yerevan, AM;

Tal Verker, Ofra, IL;

Nir Makmel, Tel Aviv, IL;

Yossef Atiya, Modiin-Maccabim-Reut, IL;

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 13/204 (2018.01); G01B 11/25 (2006.01); G06T 7/521 (2017.01); H04N 1/00 (2006.01);
U.S. Cl.
CPC ...
H04N 13/204 (2018.05); G01B 11/25 (2013.01); G06T 7/521 (2017.01); H04N 1/00018 (2013.01);
Abstract

An intraoral scanner comprises one or more structured light projectors and two or more cameras, where each structured light projector projects a pattern of light onto an intraoral three-dimensional (3D) surface and the two or more cameras capture one or more sets of images, wherein each image includes at least a portion of the projected pattern of light. A processor solves a correspondence problem within a set of images of the one or more sets of images such that points in 3D space are determined based on correspondence of captured features in the set of images to projected features of at least the portion of the projected pattern, wherein said points in 3D space form a solution to the correspondence problem. The processor calibrates the intraoral scanner by performing an adjustment to stored calibration data associated with the intraoral scanner based on the solution to the correspondence problem.


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