US 12,073,552 B2
Automated quality control for three-dimensional (3D) printed mold for orthodontic aligner
Paren Indravadan Shah, Santa Clara, CA (US); Anatoliy Parpara, Moscow (RU); Andrey Cherkas, Krasnoznamensk (RU); and Alexey Kalinichenko, Cary, NC (US)
Assigned to Align Technology, Inc., San Jose, CA (US)
Filed by Align Technology, Inc., San Jose, CA (US)
Filed on Jul. 8, 2021, as Appl. No. 17/370,966.
Application 17/370,966 is a continuation of application No. 16/685,848, filed on Nov. 15, 2019, granted, now 11,189,021.
Claims priority of provisional application 62/768,770, filed on Nov. 16, 2018.
Prior Publication US 2022/0036531 A1, Feb. 3, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. G06T 7/00 (2017.01); B29C 64/386 (2017.01); B33Y 50/00 (2015.01); G06K 9/62 (2022.01); G06T 7/11 (2017.01); G06T 7/12 (2017.01); G06T 7/60 (2017.01); G06T 7/70 (2017.01); G06V 10/98 (2022.01); G06V 20/64 (2022.01); H04N 23/74 (2023.01)
CPC G06T 7/0008 (2013.01) [B29C 64/386 (2017.08); B33Y 50/00 (2014.12); G06T 7/001 (2013.01); G06T 7/11 (2017.01); G06T 7/12 (2017.01); G06T 7/60 (2013.01); G06T 7/70 (2017.01); G06V 10/993 (2022.01); G06V 20/64 (2022.01); H04N 23/74 (2023.01); G06T 2207/10152 (2013.01); G06T 2207/20076 (2013.01); G06T 2207/20081 (2013.01); G06T 2207/20132 (2013.01); G06T 2207/30036 (2013.01); G06T 2207/30144 (2013.01); G06T 2207/30168 (2013.01)] 25 Claims
OG exemplary drawing
 
1. A method of performing automated quality control for a three-dimensional (3D) printed mold for an orthodontic aligner, comprising:
generating a plurality of images of the 3D printed mold for the orthodontic aligner using one or more imaging devices, wherein each image of the plurality of images depicts a distinct region of the 3D printed mold for the orthodontic aligner;
processing the plurality of images by a processing device to identify one or more types of manufacturing defects of the 3D printed mold for the orthodontic aligner, wherein for each type of manufacturing defect a probability that an image comprises a defect of that type of manufacturing defect is determined; and
classifying, by the processing device, the 3D printed mold for the orthodontic aligner as defective based on identifying the one or more types of manufacturing defects.