Focus scanning apparatus
    1.
    发明授权

    公开(公告)号:US11076146B1

    公开(公告)日:2021-07-27

    申请号:US17206581

    申请日:2021-03-19

    申请人: 3SHAPE A/S

    摘要: 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.

    SYSTEM AND METHOD FOR EFFECTIVE PLANNING, VISUALIZATION, AND OPTIMIZATION OF DENTAL RESTORATIONS

    公开(公告)号:US20180153659A1

    公开(公告)日:2018-06-07

    申请号:US15833591

    申请日:2017-12-06

    申请人: 3SHAPE A/S

    IPC分类号: A61C13/00 A61C5/77

    CPC分类号: A61C13/0004 A61C5/77

    摘要: Disclosed is a method for planning, visualizing, and/or optimizing dental restoration on at least a part of the pre-prepared teeth of a patient, wherein said method include the steps of: providing at least one 3D digital model of at least a part of the pre-prepared teeth; designing at least one dental restoration CAD model based on the 3D digital model of at least a part of the pre-prepared teeth; providing at least one 3D digital model of at least a part of the prepared teeth, where the prepared teeth are provided by preparing the pre-prepared teeth by dental restorative work, at least partly based on the dental restoration CAD model; and aligning the 3D models of the pre-prepared and the prepared teeth.

    Intraoral scanning apparatus
    6.
    发明授权

    公开(公告)号:US11539937B2

    公开(公告)日:2022-12-27

    申请号:US17742151

    申请日:2022-05-11

    申请人: 3SHAPE A/S

    摘要: 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 apparatus
    7.
    发明授权

    公开(公告)号:US11368667B2

    公开(公告)日:2022-06-21

    申请号:US17533403

    申请日:2021-11-23

    申请人: 3SHAPE A/S

    摘要: 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
    8.
    发明授权

    公开(公告)号:US11051002B2

    公开(公告)日:2021-06-29

    申请号:US16774843

    申请日:2020-01-28

    申请人: 3SHAPE A/S

    摘要: 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
    10.
    发明授权

    公开(公告)号:US10349041B2

    公开(公告)日:2019-07-09

    申请号:US15974105

    申请日:2018-05-08

    申请人: 3SHAPE A/S

    摘要: 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.