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    INTRAORAL SCANNING APPARATUS
    21.
    发明申请
    INTRAORAL SCANNING APPARATUS 有权

    公开(公告)号：US20220272317A1

    公开(公告)日：2022-08-25

    申请号：US17742151

    申请日：2022-05-11

    Applicant: 3SHAPE A/S

    Inventor： Rune FISKER ,  Henrik ÖJELUND ,  Rasmus KJAER ,  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
    22.
    发明申请
    FOCUS SCANNING APPARATUS 有权

    公开(公告)号：US20220086418A1

    公开(公告)日：2022-03-17

    申请号：US17533403

    申请日：2021-11-23

    Applicant: 3SHAPE A/S

    Inventor： Rune FISKER ,  Henrik ÖJELUND ,  Rasmus KJAER ,  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.

    DUAL-RESOLUTION 3D SCANNER AND METHOD OF USING
    23.
    发明申请
    DUAL-RESOLUTION 3D SCANNER AND METHOD OF USING 审中-公开

    公开(公告)号：US20200326184A1

    公开(公告)日：2020-10-15

    申请号：US15930589

    申请日：2020-05-13

    Applicant: 3SHAPE A/S

    Inventor： Nikolaj DEICHMANN ,  Mike VAN DER POEL ,  Karl-Josef HOLLENBECK ,  Rune FISKER

    IPC: G01B21/18 ,  H04N13/25 ,  G06T17/00 ,  G01B11/25 ,  G01B11/24 ,  G01B11/245 ,  H04N1/00

    Abstract: A 3D scanner system includes a scanning device capable of recording first and second data sets of a surface of an object when operating in a first configuration and a second configuration, respectively. A measurement unit is configured for measuring a distance from the scanning device to the surface. A control controls an operation of the scanning device based on the distance measured by the measurement unit, where the scanning device operates in the first configuration when the measured distance is within a first range of distances from the surface and the scanning device operates in the second configuration when the measured distance is within a second range of distances; and a data processor is configured to combine one or more first data sets and one or more second data sets to create a combined virtual 3D model of the object surface.

    SCANNING OF CAVITIES WITH RESTRICTED ACCESSIBILITY
    25.
    发明申请
    SCANNING OF CAVITIES WITH RESTRICTED ACCESSIBILITY 审中-公开

    公开(公告)号：US20190142257A1

    公开(公告)日：2019-05-16

    申请号：US16215846

    申请日：2018-12-11

    Applicant: 3Shape A/S

    Inventor： Michael VINTHER ,  David FISCHER ,  Karl-Josef HOLLENBECK ,  Mike VAN DER POEL

    IPC: A61B1/227 ,  A61B1/00

    Abstract: A method for scanning partly obstructed interior surfaces includes providing a probe shaped scanner having an axis. The scanner includes at least one light source configured to create and project structured light, and at least one camera configured to record 2D images. The method includes entering the probe shaped scanner into a cavity of an object, where the cavity is bounded by an interior surface of the object; creating and projecting structured light from the light source of the probe producing a pattern on the interior surface of the object; recording a series of 2D images of the reflection of the pattern from the interior surface using said camera; combining the series of 2D images to obtain 3D real world coordinates of the interior surface; and providing data and processing the data such that surface information for areas of the surface, where image scanning is not complete, is created.

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