REFLECTION SUPPRESSION FOR INTRAORAL SCANNER

    公开(公告)号:US20240335097A1

    公开(公告)日:2024-10-10

    申请号:US18749498

    申请日:2024-06-20

    Abstract: An apparatus for intraoral scanning comprises an elongate wand comprising a probe at a distal end of the elongate wand, one or more structured light projectors coupled to the elongate wand at a distal end of the elongate wand, the one or more structured light projectors configured to project a light pattern comprising a plurality of structured light features, one or more cameras coupled to the elongate wand at the distal end of the elongate wand, a window through which light exits and enters the probe, wherein the window reflects structured light features of the projected light pattern responsive to exposure of the window to the projected light pattern, and a processor. The processor is configured to run a three-dimensional image reconstruction algorithm based on the projected light pattern and a reflected light pattern returning from an object exposed to the projected light pattern to generate a three-dimensional surface of the object, wherein the reflected structured light features that have been reflected off of the window are excluded from the three-dimensional image reconstruction algorithm.

    INTRAORAL SCANNER WITH WAVEGUIDE PATTERN PROJECTOR

    公开(公告)号:US20230380942A1

    公开(公告)日:2023-11-30

    申请号:US18142548

    申请日:2023-05-02

    CPC classification number: A61C9/006 A61B1/00096 A61B1/24 A61B1/00097

    Abstract: An intraoral scanner comprises an elongate wand comprising a probe at a distal end of the elongate wand, one or more light sources disposed within the elongate wand away from the distal end of the probe, one or more waveguides disposed within the probe, and one or more image sensors disposed at the distal end of the probe. The one or more light sources are configured to generate unpatterned light, The one or more waveguides are configured to receive the unpatterned light generated by the one or more light sources and to output patterned light from one or more locations at the distal end of the probe. The one or more image sensors are configured to capture images of intraoral objects illuminated by the patterned light.

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