Viewfinder with real-time tracking for intraoral scanning
First Claim
1. A method for guiding scanning of an intraoral cavity of a patient, the method comprising:
- capturing one or more two-dimensional viewfinder images of one or more portions of the intraoral cavity of the patient, each of said one or more viewfinder images corresponding to a field of view of an intraoral scanner;
scanning the one or more portions of the intraoral cavity with the intraoral scanner to generate one or more topography scans of the one or more portions of the intraoral cavity, the one or more topography scans corresponding to the one or more viewfinder images;
capturing a two-dimensional viewfinder image of a portion of the intraoral cavity, the viewfinder image overlapping with the one or more viewfinder images;
determining an area of overlap of the viewfinder image with the one or more viewfinder images; and
displaying one or more indicators of the area of overlap on one or more locations of a display in order to provide guidance for positioning the field of view of the intraoral scanner,wherein said scanning the one or more portions of the intraoral cavity comprises focusing light onto the surface of the one or more portions of the intraoral cavity with confocal imaging optics and scanning the focused light through a range of focal depths, andwherein said confocal imaging optics share an optical path with viewfinder imaging optics for capturing said one or more two-dimensional viewfinder images.
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Accused Products
Abstract
Methods and systems for scanning an intraoral cavity of a patient provide capturing one or more viewfinder images of the intraoral cavity and scanning the intraoral cavity with an intraoral scanner to generate one or more topography scans of the intraoral cavity. The one or more topography scans may correspond to the one or more viewfinder images. The methods and systems further provide capturing a viewfinder image of a portion of the intraoral cavity, the viewfinder image overlapping with the one or more viewfinder images. An area of overlap of the viewfinder image with the one or more viewfinder images can be determined. One or more indicators of the area of overlap can be displayed on one or more locations of a display in order to provide guidance for positioning a field of view of the intraoral scanner.
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Citations
24 Claims
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1. A method for guiding scanning of an intraoral cavity of a patient, the method comprising:
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capturing one or more two-dimensional viewfinder images of one or more portions of the intraoral cavity of the patient, each of said one or more viewfinder images corresponding to a field of view of an intraoral scanner; scanning the one or more portions of the intraoral cavity with the intraoral scanner to generate one or more topography scans of the one or more portions of the intraoral cavity, the one or more topography scans corresponding to the one or more viewfinder images; capturing a two-dimensional viewfinder image of a portion of the intraoral cavity, the viewfinder image overlapping with the one or more viewfinder images; determining an area of overlap of the viewfinder image with the one or more viewfinder images; and displaying one or more indicators of the area of overlap on one or more locations of a display in order to provide guidance for positioning the field of view of the intraoral scanner, wherein said scanning the one or more portions of the intraoral cavity comprises focusing light onto the surface of the one or more portions of the intraoral cavity with confocal imaging optics and scanning the focused light through a range of focal depths, and wherein said confocal imaging optics share an optical path with viewfinder imaging optics for capturing said one or more two-dimensional viewfinder images. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A system for guiding scanning of an intraoral cavity of a patient, the system comprising:
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an intraoral scanner comprising an optical assembly configured to focus light onto one or more portions of the intraoral cavity in order to generate one or more topography scans of the one or more portions; a viewfinder with viewfinder optics optically aligned with the intraoral scanner in order to capture one or more two-dimensional viewfinder images corresponding to a field of view of the intraoral scanner; a display configured to display one or more indicators on one or more locations in order to provide guidance for positioning the field of view of the intraoral scanner; and a processing unit operatively coupled to the intraoral scanner, the display, and the viewfinder, the processing unit comprising instructions to determine an area of overlap of a two dimensional viewfinder image captured by the viewfinder and the one or more viewfinder images captured by the viewfinder, the one or more viewfinder images corresponding to the one or more topography scans generated by the intraoral scanner, the processing unit comprising instructions to show the area of overlap of the viewfinder image and the one or more viewfinder images on the display. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification