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    Method for providing variously processed image data and x-ray image system
    12.
    发明申请
    Method for providing variously processed image data and x-ray image system 有权
    用于提供各种处理的图像数据和x射线图像系统的方法

    公开(公告)号：US20090257637A1

    公开(公告)日：2009-10-15

    申请号：US12310940

    申请日：2007-09-20

    申请人： Stefan Böhm ,  Klaus Finkler ,  Bernhard Geiger

    发明人： Stefan Böhm ,  Klaus Finkler ,  Bernhard Geiger

    IPC分类号： G06K9/00

    CPC分类号： G06T5/50 ,  G06T11/00 ,  G06T15/503 ,  G06T2200/24 ,  G06T2207/30004 ,  G06T2210/52

    摘要： Modern image processing systems for the postprocessing of X-ray images require a large number of input parameters and take a great deal of time. So that calculations do not need to be made sequentially for different sets of input parameters, parallel processors are used, in which the same image processing program is executed in each case, but with different input parameters in each case. A large number of processed X-ray images is thus obtained, which in particular can also be displayed simultaneously. From the multiple processed x-ray images, a repeated postprocessing of a processed x-ray image can take place by mixing.

    摘要翻译： 用于后期处理X射线图像的现代图像处理系统需要大量的输入参数并花费大量的时间。 因此，对于不同的输入参数集，不需要依次进行计算，因此使用并行处理器，其中在每种情况下执行相同的图像处理程序，但是在每种情况下具有不同的输入参数。 因此获得了大量的经处理的X射线图像，其特别地也可以同时显示。 从多个经处理的X射线图像中，可以通过混合来进行经处理的X射线图像的重复后处理。

    Method and system for virtual endoscopy with guidance for biopsy
    13.
    发明授权
    Method and system for virtual endoscopy with guidance for biopsy 有权
    虚拟内窥镜检查方法与系统，辅导活检

    公开(公告)号：US07536216B2

    公开(公告)日：2009-05-19

    申请号：US11249003

    申请日：2005-10-12

    申请人： Bernhard Geiger ,  Guido M. Weiner

    发明人： Bernhard Geiger ,  Guido M. Weiner

    IPC分类号： A61B5/05

    CPC分类号： A61B10/04 ,  A61B34/10 ,  G06T15/08 ,  G06T2210/41

    摘要： A method for virtual endoscopy in a lumen includes acquiring from a patient an imaging dataset exhibiting a lesion external to a lumen wall; deriving a three-dimensional (3-D) volume of the lesion; obtaining data on maximum bend characteristics for a given endoscope; and deriving projection criteria, based on the 3-D volume and the maximum bend, for projecting an endoluminal image of said lesion, indicating an optimal biopsy insertion point.

    摘要翻译： 用于在内腔中进行虚拟内窥镜检查的方法包括从患者获取在管腔壁外表现病变的成像数据集; 导出损伤的三维（3-D）体积; 获得关于给定内窥镜的最大弯曲特性的数据; 并且基于3-D体积和最大弯曲得出用于投影所述病变的腔内图像的投影标准，指示最佳的活检插入点。

    Method and apparatus for automatic setting of rendering parameter for virtual endoscopy
    14.
    发明授权
    Method and apparatus for automatic setting of rendering parameter for virtual endoscopy 有权
    用于虚拟内窥镜检查的自动设置渲染参数的方法和装置

    公开(公告)号：US07417636B2

    公开(公告)日：2008-08-26

    申请号：US10838064

    申请日：2004-05-03

    申请人： Bernhard Geiger

    发明人： Bernhard Geiger

    IPC分类号： G06T17/00

    CPC分类号： G06T5/009 ,  G06T5/40 ,  G06T15/08 ,  G06T2207/10081 ,  G06T2207/30028 ,  G06T2210/41

    摘要： A method for automatically setting a rendering parameter for a virtual endoscope for rendering images for virtual endoscopy, comprises deriving a data set corresponding to an inside view of a viewing frustum of the endoscope; calculating a histogram from the data set; correlating features of the histogram with known physical regions wherein the endoscope is situated; and selecting a transfer function positioned relative to the features of the histogram for providing image differentiation between respective rendered images of the physical regions in the images.

    摘要翻译： 一种用于自动设置用于虚拟内窥镜的虚拟内窥镜的再现参数的方法，包括导出与内窥镜的视锥体的内视图相对应的数据集; 从数据集计算直方图; 将直方图的特征与其中所述内窥镜所位于的已知物理区域相关联; 以及选择相对于直方图的特征定位的传递函数，以在图像中的物理区域的各个渲染图像之间提供图像区分。

    System and method for performing a virtual endoscopy
    15.
    发明授权
    System and method for performing a virtual endoscopy 有权
    用于进行虚拟内窥镜检查的系统和方法

    公开(公告)号：US07304644B2

    公开(公告)日：2007-12-04

    申请号：US10795918

    申请日：2004-03-08

    申请人： Bernhard Geiger

    发明人： Bernhard Geiger

    IPC分类号： G06T17/00 ,  G06K9/00

    CPC分类号： G06T15/08 ,  G06T7/0012 ,  G06T7/11 ,  G06T19/00 ,  G06T2207/10072 ,  G06T2207/30028 ,  G06T2207/30061 ,  G06T2210/41

    摘要： A system and method for performing a virtual endoscopy is provided. The method comprises the steps of: calculating a distance map using three-dimensional (3D) data of a lumen; calculating a multiplanar reconstruction (MPR) of the lumen, wherein the MPR is calculated orthogonal to the lumen at an endoscope position; performing a first region growing on the MPR of the lumen at the endoscope position, wherein data associated with the first region is marked; calculating a minimum distance and a maximum distance from the marked data of the first region growing using corresponding distances from the distance map; performing a second region growing on the MPR of the lumen for data outside the first region growing, wherein data associated with the second region is marked; and performing a 3D rendering of the marked data associated with the first region growing and the second region growing.

    摘要翻译： 提供了一种用于执行虚拟内窥镜检查的系统和方法。 该方法包括以下步骤：使用管腔的三维（3D）数据计算距离图; 计算所述管腔的多平面重建（MPR），其中所述MPR被计算为与内窥镜位置处的内腔正交; 执行生长在所述内窥镜位置处的所述管腔的MPR上的第一区域，其中与所述第一区域相关联的数据被标记; 计算与距距离图相对应的距离增长的第一区域的标记数据的最小距离和最大距离; 执行生长在第一区域外的数据的管腔的MPR上的第二区域生长，其中与第二区域相关联的数据被标记; 以及执行与第一区域生长相关联的标记数据和第二区域生长的3D渲染。

    Method and system for displaying unseen areas in guided two dimensional colon screening
    16.
    发明申请
    Method and system for displaying unseen areas in guided two dimensional colon screening 有权
    在导向二维结肠筛查中显示未见区域的方法和系统

    公开(公告)号：US20070071297A1

    公开(公告)日：2007-03-29

    申请号：US11438617

    申请日：2006-05-22

    申请人： Bernhard Geiger ,  Sandra Sudarsky

    发明人： Bernhard Geiger ,  Sandra Sudarsky

    IPC分类号： G06K9/00

    CPC分类号： G09B23/285 ,  A61B1/31 ,  A61B5/055 ,  A61B5/4255 ,  A61B6/50 ,  G06T19/20 ,  G06T2210/41 ,  G06T2219/2012

    摘要： A method and system for displaying unseen areas in guided two dimensional (2D) colon screening, includes calculating segmentation and colon surface for a colon; calculating a centerline for the colon; designating as a current focus point a current point of intersection of a current portion of the centerline and a current cross-sectional image of a colon in a current image plane; and extracting a colon surface portion in a connected colon component containing the current focus point; and marking voxels of the colon surface portion as a “seen” area. Unseen areas of the colon surface are calculated by subtracting seen areas from the total colon area of observation. The unseen areas may then be displayed.

    摘要翻译： 用于在导向二维（2D）结肠筛查中显示未知区域的方法和系统，包括计算结肠的分割和结肠表面; 计算结肠的中心线; 将当前焦点指定为当前图像平面中的中心线的当前部分和结肠的当前横截面图像的当前交点; 以及提取包含所述当前聚焦点的连接的冒号分量中的结肠表面部分; 并将结肠表面部分的体素标记为“看到”区域。 通过从观察的总结肠区域中减去看到的面积来计算未见的结肠表面区域。 然后可以显示未看见的区域。

    Method for the compensation of image disturbances in the course of radiation image recordings and radiation image recording apparatus
    17.
    发明授权
    Method for the compensation of image disturbances in the course of radiation image recordings and radiation image recording apparatus 有权
    用于补偿放射线图像记录和放射线图像记录装置过程中的图像干扰的方法

    公开(公告)号：US07070328B2

    公开(公告)日：2006-07-04

    申请号：US10803998

    申请日：2004-03-19

    申请人： Bernhard Geiger ,  Sigrid Joite-Barfuss ,  Claudius Molz ,  Gudrun Roth-Ganter

    发明人： Bernhard Geiger ,  Sigrid Joite-Barfuss ,  Claudius Molz ,  Gudrun Roth-Ganter

    IPC分类号： G21K1/02

    CPC分类号： G01T1/2921 ,  B33Y80/00 ,  G01N23/04 ,  G01T1/1648 ,  H04N5/32

    摘要： A method is for the compensation of image disturbances in the course of a radiation image recording caused by a defocusing of an antiscatter grid, arranged in the beam path between a beam source and a digital radiation image receiver and focused with respect to a specific distance from the focus of the beam source. Such image disturbances are caused by a defocusing-dictated attenuation of the primary radiation incident on the radiation image receiver. A solid-state image detector includes radiation-sensitive pixels arranged in matrix form and a device for pixelwise amplification of the radiation-dependent signals. In the method, at least some of the signals supplied in pixelwise fashion are amplified by an amplifying device in a manner dependent on the actual distance of the antiscatter grid from the focus.

    摘要翻译： 一种方法是用于在放射图像记录过程中补偿图像干扰的过程中，该辐射图像记录由反散射网格的散焦引起，其布置在光束源和数字辐射图像接收器之间的光束路径中，并且相对于特定距离聚焦 光束源的重点。 这种图像干扰是由入射在辐射图像接收器上的主要辐射的散焦指定的衰减引起的。 固态图像检测器包括以矩阵形式布置的辐射敏感像素和用于对辐射相关信号进行像素放大的装置。 在该方法中，以像素方式提供的至少一些信号由取决于反散射网格与焦点的实际距离的放大装置放大。