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公开(公告)号：US10080636B2
公开(公告)日：2018-09-25
申请号：US14399271
申请日：2013-05-07
Applicant: Sirona Dental Systems GmbH
Inventor： Frank Thiel , Sascha Schneider
CPC classification number: A61C19/04 , A61B6/14 , A61C9/0046 , A61C9/006 , A61C9/0073 , A61C9/008
Abstract: The invention relates to a method for measuring a dental situation comprising a plurality of implants and/or preparations for inserting dental restorations. Using a first measuring method, a first region of the dental situation is initially recorded while first measurement data are generated. The first region is selected to comprise at least two implants and/or preparations. Subsequently, object regions surrounding the implants and/or the preparations are established, and, while using a second measuring method, the established object regions are detected, and second measurement data are generated. The second measuring method is more precise than the first measuring method.
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公开(公告)号：US20150222878A1
公开(公告)日：2015-08-06
申请号：US14614673
申请日：2015-02-05
Applicant: Sirona Dental Systems GmbH
Inventor： Frank Thiel , Joachim Pfeiffer
CPC classification number: H04N13/261 , A61B5/0064 , A61B5/0073 , A61B5/4547 , A61B2576/00 , A61C9/0053 , A61C9/006 , A61C19/04 , G01B11/2518 , G01B2210/52 , G06T7/55 , G06T2207/30036 , H04N13/189 , H04N13/296
Abstract: The method for optical three-dimensional surveying using an intraoral camera (2), wherein the intraoral camera (2) provides that a 3D image is created from at least one of the 2D recorded images or from at least one of the sequences, and wherein a plurality of all the 2D recorded images and/or sequences created in a first operating mode (M1) are used to create at least one overall 3D image. In addition, the method provides that a selection is made between the first operating mode (M1) and a second operating mode (M2), wherein a plurality of all 2D recorded images and/or sequences created during an interval of time (T) are used in the second operating mode (M2) to create at least one 3D image immediately before and/or after a triggering command (A).
Abstract translation: 使用口腔内相机（2）进行光学三维测量的方法，其中所述口内照相机（2）提供从所述2D记录图像或至少一个所述序列中的至少一个创建3D图像，并且其中 使用在第一操作模式（M1）中创建的所有2D记录图像和/或序列的多个，以创建至少一个整体3D图像。 此外，该方法提供在第一操作模式（M1）和第二操作模式（M2）之间进行选择，其中在时间间隔（T）期间创建的多个所有2D记录图像和/或序列是 用于第二操作模式（M2）以在触发命令（A）之前和/或之后立即创建至少一个3D图像。
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3.发明申请公开(公告)号：US20140177931A1
公开(公告)日：2014-06-26
申请号：US14236517
申请日：2012-08-01
Applicant: SIRONA DENTAL SYSTEMS GmbH
Inventor： Gerrit Kocherscheidt , Anders Adamson , Björn Popilka , Frank Thiel
CPC classification number: A61B5/0088 , A61B5/0064 , A61B5/0068 , A61C9/0046 , A61C9/006 , G06T7/0012 , G06T7/33 , G06T2207/10024 , G06T2207/10028 , G06T2207/30036
Abstract: The invention relates to a method for recording several three-dimensional recordings of a dental object, wherein each of the three-dimensional images comprises 3D measured data and color data of a measured surface of the object, wherein the individual images are combined to form an overall image using a computer-assisted recording algorithm, wherein first regions with hard tissue and second regions with soft tissue are identified in each of the images using a segmentation method that depends on the color data. In applying the recording algorithm, the first regions and the second regions are weighted with different weighting factors.
Abstract translation: 本发明涉及一种用于记录牙科物体的几个三维记录的方法，其中三维图像中的每一个包括被测物体的测量表面的3D测量数据和颜色数据，其中各个图像被组合以形成 使用计算机辅助记录算法的整体图像，其中使用依赖于颜色数据的分割方法在每个图像中识别具有硬组织的第一区域和具有软组织的第二区域。 在应用记录算法时，以不同的加权因子对第一区域和第二区域进行加权。
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公开(公告)号：US10588494B2
公开(公告)日：2020-03-17
申请号：US15575858
申请日：2016-05-20
Applicant: SIRONA DENTAL SYSTEMS GMBH
Inventor： Frank Thiel , Joachim Pfeiffer
Abstract: The invention relates to a method and a camera for the three-dimensional measurement of a dental object, comprising at least one light source that emits an illumination beam, at least one projection mask that produces a projection pattern, focusing optics that display the projection pattern in a plane of sharp focus at a defined focal distance relative to the dental camera. The projection pattern projected onto the object is reflected by the object as an observation beam and is acquired by means of a sensor. During the measurement of the object, the focusing optics are controlled in such a way that the focal distance of the plane of sharp focus relative to the camera is adjusted incrementally between a number of defined scan positions.
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Patent Agency Ranking
5.发明申请METHOD FOR RECORDING INDIVIDUAL THREE-DIMENSIONAL OPTICAL IMAGES TO FORM A GLOBAL IMAGE OF A TOOTH SITUATION 有权用于记录个体三维光学图像以形成牙齿状况的全局图像的方法公开(公告)号：US20150235412A1
公开(公告)日：2015-08-20
申请号：US14421219
申请日：2013-08-14
Applicant: Sirona Dental Systems GmbH
Inventor： Anders Adamson , Burkhard Lehner , Joost Sattler , Tom Bobach , Frank Thiel
CPC classification number: G06T17/00 , A61C9/00 , A61C9/0053 , A61C11/00 , G06T7/344 , G06T7/50 , G06T15/20 , G06T19/00 , G06T2210/32 , G06T2210/41 , G06T2219/016 , G06T2219/2008 , G06T2219/2021
Abstract: The invention relates to a method for recording individual three-dimensional optical images (1) to form a global image (50) of a tooth situation comprising an upper jaw (2) and a lower jaw (3). A first 3D model (6) of a first subsection of the upper jaw and a second 3D model (8) of a second subsection of the lower jaw are produced from the individual images. Subsequently, a geometric positional relationship between the first 3D model (6) and the second 3D model (8) is determined, said positional relationship being determined by using a lateral image (20, 21, 22) and/or using a contact pattern (31, 32). Said lateral image (20, 21, 22) comprises an image area which comprises at least part of the first subsection of the upper jaw (2) and at least part of the second subsection of the lower jaw (3). Said contact pattern comprises several contact areas (31, 32) between the upper jaw and the lower jaw. Said contact pattern (30, 31, 32) is measured by means of an occlusion paper (29).
Abstract translation: 本发明涉及用于记录单个三维光学图像（1）以形成包括上钳口（2）和下钳口（3）的牙齿情况的全局图像（50）的方法。 从各个图像产生上颌的第一子部分的第一3D模型（6）和下颌的第二子部分的第二3D模型（8）。 随后，确定第一3D模型（6）和第二3D模型（8）之间的几何位置关系，所述位置关系通过使用横向图像（20,21,22）和/或使用接触图案（ 31,32）。 所述横向图像（20,21,22）包括图像区域，该图像区域包括上钳口（2）的第一子段的至少一部分和下钳口（3）的第二子部分的至少一部分。 所述接触图案包括在上颚和下颚之间的若干接触区域（31,32）。 所述接触图案（30,31,32）通过遮挡纸（29）测量。
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公开(公告)号：US11830186B2
公开(公告)日：2023-11-28
申请号：US17251364
申请日：2019-06-17
Applicant: SIRONA DENTAL SYSTEMS GMBH , DENTSPLY SIRONA INC.
Inventor： Sascha Schneider , Frank Thiel , Axel Schwotzer
CPC classification number: G06T7/0012 , A61B5/0088 , A61C9/0053 , G06T15/04 , G06T15/08 , G06T2207/20081 , G06T2207/20084 , G06T2207/30036
Abstract: A method for designing a drilling template, wherein a dental situation is measured by means of a 3D surface measuring device and a 3D surface model of the dental situation is produced and/or measured by means of an X-ray device or an MRI device, wherein the dental situation is measured and a volume model of the dental situation is produced, the method comprising the steps of: applying an artificial neural network for machine learning (convolutional neural network; CNN) to the 3D surface model of the dental situation and/or the volume model of the dental situation and/or to an initial 3D model of the drilling template; and automatically producing a ready made 3D model of the drilling template.
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公开(公告)号：US10206558B2
公开(公告)日：2019-02-19
申请号：US15575871
申请日：2016-05-20
Applicant: SIRONA DENTAL SYSTEMS GMBH
Inventor： Joachim Pfeiffer , Frank Thiel
Abstract: The invention relates to a method and to a camera for the three-dimensional measurement of a dental object, comprising at least one light source, which emits an illumination beam, at least one projection means, which produces a projection pattern, focusing optics, which display the projection pattern in a plane of sharp focus at a defined focal distance relative to the dental camera. The projection pattern projected onto the object is reflected by the object as an observation beam and is acquired by means of a sensor. In the measurement of the object, the focusing optics are controlled in such a way that the focal distance of the plane of sharp focus relative to the camera is varied incrementally between a plurality of defined scan positions.
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公开(公告)号：US20150288952A1
公开(公告)日：2015-10-08
申请号：US14440478
申请日：2012-11-04
Applicant: SIRONA DENTAL SYSTEMS GMBH
Inventor： Bjorn Popilka , Frank Thiel , Frank Forster
Abstract: The invention relates to a method and a calibration device for calibrating a dental camera (1), which is based on a fringe projection method for optically measuring a dental object (10) in three dimensions, comprising a projection grid (2) for generating a projection pattern (3) that consists of a plurality of fringes (5), and an optical system (4) that projects the generated projection pattern (3) onto the object (10) to be measured. In a first step, a reference surface (74) with known dimensions is measured by the dental camera (1) using the fringe projection method. Actual coordinates (33, 36) of a plurality of measurement points (11) are determined on the reference surface (74), and the determined actual coordinates (33, 36) are compared to target coordinates (34) of the measurement points (11) on the reference surface (74). In the following method step, proceeding from the deviations (35, 37) between the actual coordinates (33, 36) and the target coordinates (34), a plurality of compensation values (40, 50, 51, 52, 53) are calculated for the individual fringes (5) of the projection pattern (3).
Abstract translation: 本发明涉及一种用于校准牙科照相机（1）的方法和校准装置，其基于用于三维光学测量牙科物体（10）的边缘投影方法，该方法和校准装置包括投影栅格（2），用于产生 由多个条纹（5）组成的投影图案（3）和将所生成的投影图案（3）投影到被测量物体（10）上的光学系统（4）。 在第一步骤中，使用边缘投影法通过牙科相机（1）测量具有已知尺寸的参考表面（74）。 在参考表面（74）上确定多个测量点（11）的实际坐标（33,36），并将确定的实际坐标（33,36）与测量点（11）的目标坐标（34）进行比较 ）在参考表面（74）上。 在下面的方法步骤中，从实际坐标（33,36）和目标坐标（34）之间的偏差（35,37）开始，计算多个补偿值（40,50,51,52,53） 用于投影图案（3）的各个条纹（5）。
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公开(公告)号：US10390693B2
公开(公告)日：2019-08-27
申请号：US15564436
申请日：2016-04-11
Applicant: SIRONA DENTAL SYSTEMS GMBH
Inventor： Anders Adamson , Frank Thiel , Ulf Willers
Abstract: The invention relates to a measurement system for optically measuring an object, comprising a dental camera and an optical attachment. In this case the optical attachment comprises at least one lens, which is shaped and arranged in such a way that the optical attachment has a negative focal length so that a measurement field or a measurement volume of the dental camera is enlarged by the optical attachment.
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