Patent ID: 11896461
Assignee: ALIGN TECHNOLOGY, INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC A  G  H | IPC A  G  H

Claim 12:
13. The method of claim 8, further comprising:
receiving data from the two or more cameras indicative of a position of a target of the intraoral scanner with respect to the pattern of light, wherein the target has a plurality of regions, each structured light projector of the plurality of structured light projectors has at least one region of the target in its field of illumination, and each camera of the two or more cameras has at least one region of the target in its field of view;
comparing the received data to a stored calibration position of the target, wherein a discrepancy between (i) the received data indicative of the position of the target and (ii) the stored calibration position of the target indicates a shift of the projector rays and the camera rays from their respective calibration values; and
accounting for the shift of the projector rays and the camera rays in identification of the three-dimensional locations.