US 12,478,459 B2
Three-dimensional tooth modeling using an estimation of an imaging process of an x-ray imaging device
Fuming Wu, Pleasanton, CA (US); Vadim Matov, San Jose, CA (US); and Jihua Cheng, San Jose, CA (US)
Assigned to Align Technology, Inc., San Jose, CA (US)
Filed by Align Technology, Inc., San Jose, CA (US)
Filed on Apr. 7, 2023, as Appl. No. 18/297,590.
Application 18/297,590 is a continuation of application No. 17/328,996, filed on May 24, 2021, granted, now 11,654,003.
Application 17/328,996 is a continuation of application No. 16/113,018, filed on Aug. 27, 2018, granted, now 11,013,582, issued on May 25, 2021.
Application 16/113,018 is a continuation of application No. 14/622,763, filed on Feb. 13, 2015, granted, now 10,076,389, issued on Sep. 18, 2018.
Prior Publication US 2023/0390033 A1, Dec. 7, 2023
Int. Cl. A61C 13/00 (2006.01); A61C 7/00 (2006.01); G06F 30/00 (2020.01); G16Z 99/00 (2019.01)
CPC A61C 13/0004 (2013.01) [A61C 7/002 (2013.01); G16Z 99/00 (2019.02); A61C 2007/004 (2013.01); G06F 30/00 (2020.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
generating, by a processing device, a scan model that is a mathematical model to simulate an imaging process performed by an x-ray imaging device that created a two-dimensional x-ray image of at least one tooth, wherein the scan model uses initial estimates of a plurality of parameters of the x-ray imaging device; and
calibrating the scan model using data obtained from an adjustment of a two-dimensional contour of a three-dimensional model to overlay the two-dimensional x-ray image.