Patent ID: 11928832
Assignee: ALIGN TECHNOLOGY, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G  A | IPC A  G

Claim 17:
18. An intraoral scanning system, comprising:
an intraoral scanner; and
a computing device operatively connected to the intraoral scanner, the computing device to:
receive a plurality of intraoral scans of a dental site from the intraoral scanner;
make a plurality of comparisons for a first intraoral scan of the plurality of intraoral scans, wherein each comparison is with an additional intraoral scan of the plurality of intraoral scans, wherein the plurality of comparisons are performed to determine a plurality of points that satisfy one or more first criteria associated with at least one of a) co-directionality of a surface normal with a viewing direction associated with the additional intraoral scan or b) positioning behind a corresponding point in the additional intraoral scan;
determine a region comprising the plurality of points that satisfy the one or more first criteria;
determine whether the region satisfies one or more removal criteria; and
remove the region from the first intraoral scan responsive to determining that the region satisfies the one or more removal criteria.