公开(公告)号：US20110129058A1

公开(公告)日：2011-06-02

申请号：US13055879

申请日：2009-07-29

申请人： Johannes Ulrici ,  Roland Bonk

发明人： Johannes Ulrici ,  Roland Bonk

IPC分类号： A61B6/14 ,  A61B5/107

CPC分类号： A61B6/14 ,  A61B5/1077 ,  A61B5/4504 ,  A61B6/466 ,  A61B6/469 ,  A61B6/488 ,  A61B6/506 ,  A61B6/548 ,  A61B6/587

摘要： In a method for the creation of a dental 3D radiograph of at least a subregion, forming a volume (42, V1, V2), of an object (14) using an X-ray apparatus (1), said volume can be recorded as a 3D radiograph from a plurality of projected images during a revolution around said object.At least a part of the object (14) is displayed in a graphical representation (40, 71, 72, 73) before the radiograph of the volume (42, V1, V2) is created, the position of the graphical representation (40, 71, 72, 73, 74) relative to the current position of the apparatus and the patient being known. The volume (42, V1, V2) to be radiographed, governed by the positioning of said object (14) relatively to the apparatus and by the choice of the settings data and/or control data, is placed in said graphical representation (40, 71, 72, 73, 74) in an at least approximately correct position, and when there is a change in position and/or size of the volume to be radiographed (42, V1, V2) within the graphical representation (40, 71, 72), the settings data and/or control data for the creation of the 3D radiograph are defined.

摘要翻译： 在使用X射线装置（1）形成物体（14）的体积（42，V1，V2）的至少一个子区域的牙齿3D射线照片的创建方法中，所述体积可以记录为 在围绕所述物体的旋转期间来自多个投影图像的3D射线照片。 在创建卷（42，V1，V2）的放射照片之前，图形表示（40,71,72,73）中的对象（14）的至少一部分被显示，图形表示（40， 71,72,73,74）相对于设备和患者的当前位置是已知的。 由所述对象（14）相对于所述设备的定位以及通过所述设置数据和/或控制数据的选择来管理的要被放射照相的体积（42，V1，V2）被放置在所述图形表示（40， 71，72，73，74），并且当图形表示（40,71,72,74,73,74）中的要被放射照射的体积（42，V1，V2）的位置和/或尺寸发生变化时， 72），定义用于创建3D射线照片的设置数据和/或控制数据。

公开(公告)号：US08750450B2

公开(公告)日：2014-06-10

申请号：US13055879

申请日：2009-07-29

申请人： Johannes Ulrici ,  Roland Bonk

发明人： Johannes Ulrici ,  Roland Bonk

IPC分类号： A61B6/14 ,  A61B5/07

CPC分类号： A61B6/14 ,  A61B5/1077 ,  A61B5/4504 ,  A61B6/466 ,  A61B6/469 ,  A61B6/488 ,  A61B6/506 ,  A61B6/548 ,  A61B6/587

摘要： In a method for the creation of a dental 3D radiograph of at least a subregion, forming a volume, of an object using an X-ray apparatus, the volume is recorded as a 3D radiograph from a plurality of projected images during a revolution around the object. At least a part of the object is displayed in a graphical representation before the radiograph of the volume is created, the position of the graphical representation relative to the current position of the apparatus and the patient being known. The volume to be radiographed, governed by the positioning of the object relatively to the apparatus and by the choice of the settings data and/or control data, is placed in the graphical representation in an at least approximately correct position, and when there is a change in position and/or size of the volume to be radiographed within the graphical representation, the settings data and/or control data for the creation of the 3D radiograph are defined.

摘要翻译： 在使用X射线装置创建物体的至少一个次区域的牙齿3D射线照相的方法中，该体积被记录为来自多个投影图像的3D射线照片， 目的。 在创建卷的放射照片之前，以图形表示显示对象的至少一部分，图形表示相对于设备的当前位置和患者已知的位置。 由相对于设备的对象的定位以及通过选择设置数据和/或控制数据来管理的要被放射照射的体积被置于至少大致正确的位置的图形表示中，并且当存在 在图形表示内改变要放射照相的体积的位置和/或尺寸，定义用于创建3D射线照片的设置数据和/或控制数据。

公开(公告)号：US06351519B1

公开(公告)日：2002-02-26

申请号：US09485449

申请日：2000-02-11

申请人： Roland Bonk ,  Uwe Zeller

发明人： Roland Bonk ,  Uwe Zeller

IPC分类号： H05G164

CPC分类号： H04N5/361 ,  A61B6/14 ,  A61B6/585 ,  H04N5/32 ,  H05G1/64

摘要： A method is proposed for compensating for the dark current of an electronic sensor having a plurality of pixels with an individual dark-current response, radiation for producing an image signal (BS) being directed from a beam source (3) onto a detector arrangement (4) containing the sensor, and a recording being taken with different clock-out rate (v) (integration time) by reading the detector signal (S) present in the pixels of the sensor, in which, before the beginning or after the end of the recording with radiation, the sensor is read out without radiation with at least two different clock-out rates (v1, v2) and at least two dark-current signals (DC1, DC2) are thereby picked up for each pixel, in which the dark-current signals (DC1, DC2) that have been read out are then used to calculate a dark-current value (DV) of individual pixels of the sensor as a function of the clock-out rate (v), and in which a correction is then made, using the dark-current value associated with each pixel, to the detector signal (S) with the dark-current signal superimposed on it in order to calculate the picture value (PV).

摘要翻译： 提出了一种用于补偿具有单个暗电流响应的多个像素的电子传感器的暗电流的方法，用于产生从光束源（3）引导到检测器装置（3）上的图像信号（BS）的辐射 4），并且通过读取传感器的像素中存在的检测器信号（S），以不同的时钟输出速率（v）（积分时间）拍摄记录，其中在开始或结束之后 通过辐射进行记录，传感器被读出，而不会发射出至少两个不同的时钟输出速率（v1，v2）的辐射，并且因此每个像素拾取至少两个暗电流信号（DC1，DC2），其中 已经读出的暗电流信号（DC1，DC2）随后用于计算传感器的各个像素的暗电流值（DV）作为时钟输出速率（v）的函数，其中 然后使用与每个像素相关联的暗电流值进行校正 ，以及叠加在其上的暗电流信号的检测器信号（S），以计算图像值（PV）。

公开(公告)号：US06570953B1

公开(公告)日：2003-05-27

申请号：US09937256

申请日：2002-02-05

申请人： Michael Dobert ,  Roland Bonk

发明人： Michael Dobert ,  Roland Bonk

IPC分类号： A61B600

CPC分类号： A61B6/14

摘要： In a method and x-ray apparatus for making and reproducing a radiological tomogram of a subject, the subject is irradiated with radiation emanating from a focus disposed at a known distance from a focal plane, situated at the subject. The focal plane is disposed at a known distance from a radiation receiver, which is disposed in the image plane, and which contains a number of picture elements. In a digital radiological tomogram, either the slice position with the aforementioned distances is allocated to respective picture elements, or a correction factor, based on the slice position and the aforementioned distances, is allocated to the respective picture elements, from which a corrected image is obtained with the subject appearing with a corrected size corresponding to the size of the subject in the focal plane.

摘要翻译： 在用于制作和再现被摄体的放射性断层图像的方法和x射线设备中，用位于被摄体处的焦平面已知距离设置的焦点辐射被照射物体。 焦平面设置在与放置在图像平面中并且包含多个图像元素的辐射接收器已知的距离处。 在数字放射断层图中，将具有上述距离的切片位置分配给各个图像元素，或者基于切片位置和上述距离的校正因子被分配给各个图像元素，校正图像是 获得的对象以与焦点平面中的被摄体的大小相对应的校正大小出现。