VERFAHREN ZUR DURCHFÜHRUNG EINER OPTISCHEN DREIDIMENSIONALEN AUFNAHME
    21.
    发明公开
    VERFAHREN ZUR DURCHFÜHRUNG EINER OPTISCHEN DREIDIMENSIONALEN AUFNAHME 审中-公开
    奥地利维多利亚州杜兰福

    公开(公告)号:EP3134027A1

    公开(公告)日:2017-03-01

    申请号:EP15723436.0

    申请日:2015-04-23

    IPC分类号: A61C9/00

    摘要: The invention relates to a method for performing an optical three-dimensional recording (4) by using a hand-held dental camera (2), wherein the camera (2) automatically records a plurality of individual optical recordings (4) in succession at a defined frequency during the measurement, wherein the individual three-dimensional optical recordings (4) are combined by means of registration into an overall recording of a dental object (1) to be measured. Before the measurement is performed, a three-dimensional standard jaw model (7) is displayed by means of a display device (6), wherein a first control point (10) on the standard jaw model (7) is displayed by means of the display device (6). The hand-held dental camera (2) is then positioned in relation to the object (1) to be recorded in such a way that the camera (2) points at the first control point (10) of the standard jaw model (7) and records a corresponding recording region of the dental object (1).

    摘要翻译: 本发明涉及一种通过使用手持式牙科相机进行光学三维记录的方法,其中相机在测量期间以规定的频率连续地自动记录多个单独的光学记录,其中单独的三维 通过配准将光学记录组合到要测量的牙科物体的整体记录中。 在进行测量之前,通过显示装置显示三维标准颌模型,其中通过显示装置显示标准颌模型上的第一控制点。 然后将手持式牙科镜相对于要记录的物体定位成使得照相机指向标准颌模型的第一控制点(10)并且记录牙科对象的相应记录区域。

    METHOD, APPARATUS, AND COMPUTER READABLE MEDIUM FOR REMOVING UNWANTED OBJECTS FROM A TOMOGRAM
    22.
    发明公开
    METHOD, APPARATUS, AND COMPUTER READABLE MEDIUM FOR REMOVING UNWANTED OBJECTS FROM A TOMOGRAM 审中-公开
    方法,设备和计算机可读媒体,用于从有趣的对象中删除有意义的对象

    公开(公告)号:EP3131062A2

    公开(公告)日:2017-02-15

    申请号:EP16178765.0

    申请日:2016-07-11

    IPC分类号: G06T11/00

    摘要: A method, apparatus, and computer readable medium for removing an unwanted object from an image volume are provided. Volumetric data of an object of study is generated in a radiographic scan. Volumetric data of the unwanted object is obtained. The two sets of volumetric data are registered in a common coordinate system. The unwanted object is removed from the volumetric data of the object of study to create modified volumetric data of the object of study. Data from voxels surrounding the removed unwanted object may be used to populate voxels corresponding to the unwanted object with interpolated data. A plurality of forward projections are performed on the modified volumetric data of the object of study, and a tomogram with the unwanted object removed is constructed.

    摘要翻译: 提供了用于从图像体积中移除不需要的对象的方法,设备和计算机可读介质。 在射线照相扫描中生成研究对象的体积数据。 获取不需要的对象的体积数据。 这两组体积数据被注册在一个共同的坐标系统中。 将不需要的对象从研究对象的体积数据中移除,以创建研究对象的修改的体积数据。 来自移除的不需要的对象周围的体素的数据可以用于使用内插的数据填充对应于不想要的对象的体素。 对研究对象的修改体数据执行多个向前投影,并且构造具有不想要的对象的断层图像。

    VERFAHREN ZUR PLANUNG EINER DENTALEN BEHANDLUNG
    29.
    发明公开
    VERFAHREN ZUR PLANUNG EINER DENTALEN BEHANDLUNG 审中-公开
    方法规划牙科治疗

    公开(公告)号:EP2922491A1

    公开(公告)日:2015-09-30

    申请号:EP13810900.4

    申请日:2013-11-19

    IPC分类号: A61C9/00

    摘要: The invention relates to a method for planning or for checking the planning of a dental and/or a maxillofacial treatment, wherein at least one video recording of an object (3) is recorded by means of at least one video camera (1). A patient model (4) is available, which comprises image data of the object (3), wherein the video recording is virtually coupled to the patient model (4) in such a way that a viewing direction (13) of the view of the patient model (4) is changed in dependence on a changing recording direction (9, 46, 47, 48, 49, 50) of the video recording when the video camera (1) is moved in relation to the object (3).

    KALIBRIERUNGSVORRICHTUNG UND VERFAHREN ZUR KALIBRIERUNG EINER DENTALEN KAMERA
    30.
    发明公开
    KALIBRIERUNGSVORRICHTUNG UND VERFAHREN ZUR KALIBRIERUNG EINER DENTALEN KAMERA 有权
    KALIBRIUNUNGSVORRICHTUNG UND VERFAHREN ZUR KALIBRIERUNG EINER DENTALEN KAMERA

    公开(公告)号:EP2914205A1

    公开(公告)日:2015-09-09

    申请号:EP13798261.7

    申请日:2013-11-04

    摘要: 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).

    摘要翻译: 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)的边缘投射方法,该方法和校准装置包括用于产生 由多个边缘(5)组成的投影图案(3)和将所生成的投影图案(3)投影到要测量的对象(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)。