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    Systems And Methods For Designing A Dental Prosthesis
    1.
    发明申请
    Systems And Methods For Designing A Dental Prosthesis 有权

    公开(公告)号：US20250064562A1

    公开(公告)日：2025-02-27

    申请号：US18717661

    申请日：2022-12-09

    Applicant: 3SHAPE A/S

    Inventor： Karl-Josef HOLLENBECK ,  Bárdur ÍSLEIFSSON ,  Erik ASK ,  Peter Steen Hansen

    IPC: A61C13/00 ,  A61C9/00 ,  G06F30/27

    Abstract: The present disclosure relates to a computer-implemented method for designing a dental prosthesis. A first step of the method may be to obtain a digital 3D representation of a surface, the surface including at least a part of a preparation surface adapted to receive the dental prosthesis, wherein the preparation surface includes a visible part and a hidden part. A second step of the method may be to determine at least one part of a surface of the dental prosthesis using a statistical design model, wherein the at least one part is determined independent of any knowledge or estimate of the hidden part of the preparation surface. A final step of the method may be to design the dental prosthesis wherein the surface of the dental prosthesis includes the at least one part.

    METHOD FOR GENERATING EDGE CURVE FOR DENTAL DEVICES
    5.
    发明申请
    METHOD FOR GENERATING EDGE CURVE FOR DENTAL DEVICES 有权

    公开(公告)号：US20230005196A1

    公开(公告)日：2023-01-05

    申请号：US17782253

    申请日：2020-12-04

    Applicant: 3SHAPE A/S

    Inventor： Marat KHAITOV ,  Karl-Josef HOLLENBECK

    IPC: G06T11/20 ,  A61C13/34 ,  G06T7/13

    Abstract: According to an embodiment, a computer-implemented method for generating an edge curve to facilitate manufacture of at least a portion of a dental device is disclosed. The method includes identifying at least one tooth reference point for each of at least two teeth on a dental model; identifying at least one offset point corresponding to each of the at least one tooth reference points such that the at least one offset point is on a gingival surface of the dental model and located outside an interproximal area; and generating the edge curve by connecting the offset points such that the edge curve is outside the interproximal area and on the gingival surface.

    FOCUS SCANNING APPARATUS
    6.
    发明申请
    FOCUS SCANNING APPARATUS 审中-公开

    公开(公告)号：US20200169722A1

    公开(公告)日：2020-05-28

    申请号：US16774843

    申请日：2020-01-28

    Applicant: 3SHAPE A/S

    Inventor： Rune FISKER ,  Henrik ÔJELUND ,  Rasmus KJÆR ,  Mike van der POEL ,  Arish A. QAZI ,  Karl-Josef HOLLENBECK

    IPC: H04N13/296 ,  A61B5/00 ,  G01B11/25 ,  A61B5/107

    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.

    FOCUS SCANNING APPARATUS
    7.
    发明申请
    FOCUS SCANNING APPARATUS 审中-公开

    公开(公告)号：US20190289283A1

    公开(公告)日：2019-09-19

    申请号：US16433369

    申请日：2019-06-06

    Applicant: 3SHAPE A/S

    Inventor： Rune FISKER ,  Henrik ÔJELUND ,  Rasmus KJÆR ,  Mike van der POEL ,  Arish A. QAZI ,  Karl-Josef HOLLENBECK

    IPC: H04N13/296 ,  A61B5/107 ,  G01B11/25 ,  A61B5/00

    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
    9.
    发明公开
    INTRAORAL SCANNING WITH SURFACE DIFFERENTIATION 审中-公开

    公开(公告)号：US20240252289A1

    公开(公告)日：2024-08-01

    申请号：US18608267

    申请日：2024-03-18

    Applicant: 3SHAPE A/S

    Inventor： Henrik ÖJELUND ,  Asger Vejen HOEDT ,  Karl-Josef HOLLENBECK

    IPC: A61C9/00 ,  G06N3/08 ,  G06T17/00

    CPC classification number: A61C9/0073 ,  G06N3/08 ,  G06T17/00 ,  G06T2210/41

    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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