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

Claim 15:
16. The intraoral scanning system of claim 1, wherein the first intraoral scan comprises a first height map, wherein the second intraoral scan comprises a second height map, and wherein the computing device is further to:
generate a projected height map by projecting the second height map onto a plane associated with the first intraoral scan; and
for each point in the second intraoral scan, perform the following:
determine an area comprising a plurality of additional points around the point;
compare a height of the point from the projected height map to heights of each of the plurality of additional points from the first height map to determine height differences therebetween;
determine whether any of the height differences are below a threshold; and
identify the point in the second intraoral scan as a proximity point responsive to determining that at least one of the height differences is below the threshold.