3D INTRAORAL SCANNER MEASURING FLUORESCENCE

    公开(公告)号:US20240423477A1

    公开(公告)日:2024-12-26

    申请号:US18825104

    申请日:2024-09-05

    Applicant: 3Shape A/S

    Abstract: A 3D scanner system for detecting and/or visualizing cariogenic regions in teeth based on fluorescence emitted from the teeth, the 3D scanner system including data processing means configured for mapping a representation of fluorescence emitted from the teeth onto the corresponding portion of a digital 3D representation of the teeth to provide a combined digital 3D representation.

    FOCUS SCANNING APPARATUS
    45.
    发明申请

    公开(公告)号:US20210306617A1

    公开(公告)日:2021-09-30

    申请号:US17340806

    申请日:2021-06-07

    Applicant: 3SHAPE A/S

    Abstract: A scanner includes a camera, a light source for generating a probe light incorporating a spatial pattern, an optical system for transmitting the probe light towards the object and for transmitting at least a part of the light returned from the object to the camera, a focus element within the optical system for varying a position of a focus plane of the spatial pattern on the object, unit for obtaining at least one image from said array of sensor elements, unit for evaluating a correlation measure at each focus plane position between at least one image pixel and a weight function, a processor for determining the in-focus position(s) of each of a plurality of image pixels for a range of focus plane positions, or each of a plurality of groups of image pixels for a range of focus plane positions, and transforming in-focus data into 3D real world coordinates.

    INTRAORAL SCANNING WITH SURFACE DIFFERENTIATION

    公开(公告)号:US20210106409A1

    公开(公告)日:2021-04-15

    申请号:US16970036

    申请日:2019-02-08

    Applicant: 3SHAPE A/S

    Abstract: A method for generating a digital 3D representation of at least a part of an intraoral cavity, the method including recording a plurality of views containing surface data representing at least the geometry of surface points of the part of the intraoral cavity using an intraoral scanner; determining a weight for each surface point at least partly based on scores that are measures of belief of that surface point representing a particular type of surface; executing a stitching algorithm that performs weighted stitching of the surface points in said plurality of views to generate the digital 3D representation based on the determined weights; wherein the scores for the surface points are found by at least one score-finding algorithm that takes as input at least the geometry part of the surface data for that surface point and surface data for points in a neighbourhood of that surface point.

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