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    DETECTION OF A MOVABLE OBJECT WHEN 3D SCANNING A RIGID OBJECT
    121.
    发明申请
    DETECTION OF A MOVABLE OBJECT WHEN 3D SCANNING A RIGID OBJECT 审中-公开

    公开(公告)号：US20180360317A1

    公开(公告)日：2018-12-20

    申请号：US16018827

    申请日：2018-06-26

    Applicant: 3SHAPE A/S

    Inventor： Rune FISKER ,  Michael VINTHER ,  Henrik ÖJELUND

    IPC: A61B5/00 ,  A61C19/04 ,  G06T7/55

    Abstract: Detecting a movable object in a location includes providing a first 3D representation of at least part of a surface; providing a second 3D representation of at least part of the surface; determining for the first 3D representation a first excluded volume in space where no surface can be present; determining for the second 3D representation a second excluded volume in space where no surface can be present; if a portion of the surface in the first 3D representation is located in space in the second excluded volume, the portion of the surface in the first 3D representation is disregarded in the generation of the virtual 3D model, and/or if a portion of the surface in the second 3D representation is located in space in the first excluded volume, the portion of the surface in the second 3D representation is disregarded in the generation of the virtual 3D model.

    Selective amplification of optical coherence tomography signals
    122.
    发明授权
    Selective amplification of optical coherence tomography signals 有权

    公开(公告)号：US10113857B2

    公开(公告)日：2018-10-30

    申请号：US15054745

    申请日：2016-02-26

    Applicant: 3SHAPE A/S

    Inventor： Karl-Josef Hollenbeck ,  Onur Kaya ,  Ashwani Kumard

    IPC: G01B9/02

    Abstract: Presented is an optical coherence tomography system and method to increase imaging depth of optical coherence tomography (OCT) by selective amplification. In a swept-source OCT system with periodically linear wavenumber-vs-time characteristic, the signal in principle is summation of various sinusoidal signals with different frequencies. Each frequency component of the recorded signal carries reflectivity information for a certain depth of the analyzed object. At greater depth inside the analyzed object, the reflectivity information is generally weak due absorption and scattering. An analog or digital electronic circuit selectively filters and amplifies frequencies above some threshold, possibly up to another threshold. In this way, even small signals for relatively larger depths become detectable.

    Visualising a 3D dental restoration on a 2D image
    123.
    发明授权
    Visualising a 3D dental restoration on a 2D image 有权

    公开(公告)号：US10098521B2

    公开(公告)日：2018-10-16

    申请号：US15690471

    申请日：2017-08-30

    Applicant: 3Shape A/S

    Inventor： Tais Clausen ,  Rune Fisker

    IPC: A61B1/00 ,  A61B1/24 ,  A61C13/34 ,  A61C13/00

    Abstract: A method for visualising a 3D dental restoration on a 2D image of the mouth of a patient includes obtaining a 3D dental model of at least a part of the patient's oral cavity, designing the 3D dental restoration, obtaining the 2D image of the mouth of the patient, estimating a virtual camera including at least one virtual camera property corresponding to at least one physical camera property of the physical camera used to obtain the 2D image, viewing the 3D dental restoration using the virtual camera, determining the visible area of the 3D dental restoration, which is not overlapped by surrounding anatomic features when viewed with the virtual camera, imaging the visible area of the 3D dental restoration with the 2D image. This advantageously provides an image which with high accuracy gives the dentist and the patient a visual presentation of the final result of a dental treatment.

    DRILL GUIDE ASSEMBLY
    125.
    发明申请
    DRILL GUIDE ASSEMBLY 审中-公开

    公开(公告)号：US20170209235A1

    公开(公告)日：2017-07-27

    申请号：US15328643

    申请日：2015-07-06

    Applicant: 3Shape A/S

    Inventor： Rune FISKER ,  Birk PLOENNIGS ,  Thomas HEDEGAARD

    IPC: A61C1/08 ,  A61B17/17 ,  A61B34/10

    CPC classification number: A61C1/084 ,  A61B17/176 ,  A61B34/10 ,  A61B2034/108 ,  A61C1/0084 ,  A61C1/085

    Abstract: A drill guide assembly used to guide a drill into the jawbone of a patient during dental surgery includes at least one through going guide bore for guiding the drill, at least one attachment for securing a part of the drill guide assembly to the jaw of the patient during surgery, wherein the drill guide assembly includes a first part including the at least one first through going guide bore, the at least one first attachment and at least a first reference area for referring the first part to a first anatomical feature of the patient, a second part including a second reference area for referring the second part to a second anatomical feature of the patient, and a guiding structure for guiding the first part and the second into a desired configuration.

    TOOLS FOR CUSTOMIZED DESIGN OF DENTAL RESTORATIONS
    128.
    发明申请
    TOOLS FOR CUSTOMIZED DESIGN OF DENTAL RESTORATIONS 审中-公开

    公开(公告)号：US20160103935A1

    公开(公告)日：2016-04-14

    申请号：US14972999

    申请日：2015-12-17

    Applicant: 3SHAPE A/S

    Inventor： Rune FISKER ,  Tais CLAUSEN ,  Nikolaj DEICHMANN

    IPC: G06F17/50 ,  A61C13/00

    CPC classification number: G06F17/50 ,  A61C5/77 ,  A61C8/005 ,  A61C13/0004 ,  B33Y50/00 ,  B33Y80/00 ,  G16H20/40

    Abstract: Tools in a system for the design of customized three-dimensional models of dental restorations for subsequent manufacturing. Dental restorations such as implant abutments, copings, crowns, wax-ups, bridge frameworks. Moreover, a computer-readable medium for implementing such a system on a computer. A system for designing at least one dental restoration, said system including: a display, means for acquiring and displaying a three dimensional dental restoration model of the dental restoration, and means for displaying a plurality of control points, each of the control points corresponding to a respective location on the dental restoration model, and each of said control points enabling manual customization of the dental restoration model.

    FOCUS SCANNING APPARATUS
    129.
    发明申请
    FOCUS SCANNING APPARATUS 审中-公开
    聚焦扫描仪

    公开(公告)号：US20150054922A1

    公开(公告)日：2015-02-26

    申请号：US14502230

    申请日：2014-09-30

    Applicant: 3SHAPE A/S

    Inventor： Rune FISKER ,  Henrik Öjelund ,  Rasmus Kjær ,  Mike Van Der Poel ,  Arish A. Qazi ,  Karl-Josef Hollenbeck

    IPC: H04N13/02 ,  A61B5/00 ,  A61B5/107 ,  G01B11/25

    CPC classification number: H04N13/296 ,  A61B5/0068 ,  A61B5/1075 ,  A61B5/1076 ,  A61B5/1077 ,  A61B5/4547 ,  G01B11/2513 ,  G01B11/2518 ,  G01B2210/58

    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.

    Abstract translation: 扫描器包括相机，用于产生包含空间图案的探测光的光源，用于将探测光发送到物体并用于将从物体返回的光的至少一部分传输到相机的光学系统，焦点 在所述光学系统内用于改变所述物体上的空间图案的聚焦平面的位置的单元，用于从所述传感器元件阵列获得至少一个图像，用于评估在至少一个 图像像素和加权函数的处理器，用于针对焦距平面位置的范围确定多个图像像素中的每一个的对焦位置的处理器或用于焦距范围的多组图像像素中的每一个 平面位置，并将对焦数据转换为3D现实世界坐标。

    TOOLS FOR CUSTOMIZED DESIGN OF DENTAL RESTORATIONS
    130.
    发明申请
    TOOLS FOR CUSTOMIZED DESIGN OF DENTAL RESTORATIONS 有权
    牙科修复的定制设计工具

    公开(公告)号：US20140207422A1

    公开(公告)日：2014-07-24

    申请号：US14222761

    申请日：2014-03-24

    Applicant: 3SHAPE A/S

    Inventor： Rune FISKER ,  Tais CLAUSEN ,  Nikolaj DEICHMANN

    IPC: A61C13/00

    CPC classification number: G06F17/50 ,  A61C5/77 ,  A61C8/005 ,  A61C13/0004 ,  B33Y50/00 ,  B33Y80/00

    Abstract: The present disclosure relates to tools in a system for the design of customized three-dimensional models of dental restorations for subsequent manufacturing. Dental restorations such as implant abutments, copings, crowns, wax-ups, bridge frameworks. Moreover, the disclosure relates to a computer-readable medium for implementing such a system on a computer.

    Abstract translation: 本公开涉及用于设计用于后续制造的牙科修复体的定制三维模型的系统中的工具。 牙科修复体，如植入物基台，针孔，冠，蜡烛，桥梁框架。 此外，本公开涉及一种用于在计算机上实现这种系统的计算机可读介质。

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