US 11,744,682 B2
Method and device for digital scan body alignment
Avi Kopelman, Palo Alto, CA (US); and Michael Sabina, Campbell, CA (US)
Assigned to Align Technology, Inc., San Jose, CA (US)
Filed by Align Technology, Inc., San Jose, CA (US)
Filed on May 18, 2022, as Appl. No. 17/747,958.
Application 17/747,958 is a continuation of application No. 16/809,451, filed on Mar. 4, 2020, granted, now 11,367,192.
Claims priority of provisional application 62/815,954, filed on Mar. 8, 2019.
Prior Publication US 2022/0277454 A1, Sep. 1, 2022
Int. Cl. G06K 9/00 (2022.01); A61C 9/00 (2006.01); A61C 7/00 (2006.01); G06T 7/00 (2017.01); G06T 17/00 (2006.01); G06T 19/20 (2011.01); G06T 7/70 (2017.01); G16H 30/40 (2018.01); G16H 50/50 (2018.01); G06N 20/00 (2019.01); A61B 1/24 (2006.01); A61B 1/00 (2006.01)
CPC A61C 9/0046 (2013.01) [A61B 1/000094 (2022.02); A61B 1/000096 (2022.02); A61B 1/00194 (2022.02); A61B 1/24 (2013.01); A61C 7/002 (2013.01); A61C 9/0053 (2013.01); A61C 9/0073 (2013.01); G06N 20/00 (2019.01); G06T 7/0014 (2013.01); G06T 7/70 (2017.01); G06T 17/00 (2013.01); G06T 19/20 (2013.01); G16H 30/40 (2018.01); G16H 50/50 (2018.01); A61B 1/00009 (2013.01); A61B 1/00108 (2013.01); G06T 2200/08 (2013.01); G06T 2207/30036 (2013.01); G06T 2210/41 (2013.01)] 30 Claims
OG exemplary drawing
 
21. A method comprising:
receiving image data generated of a dental site in an oral cavity of a patient by an intraoral scanner, the image data comprising a representation of the dental site and a representation of a foreign object at the dental site, wherein the foreign object is an object that does not naturally occur at the dental site;
determining that the image data comprises a foreign object representation;
searching a reference object library comprising library data of a plurality of reference objects for library data of the foreign object, wherein data for the plurality of reference objects in the reference object library comprises at least one of data for one or more default reference objects prepopulated in the reference object library or data for one or more additional reference objects generated from image data of the one or more additional reference objects;
identifying the library data of the foreign object in the reference object library; and
aligning the library data of the foreign object with the image data.