Method for reconstructing 3D image data with respect to a volume of interest of an examination subject
    1.
    发明授权
    Method for reconstructing 3D image data with respect to a volume of interest of an examination subject 有权
    相对于检查对象的兴趣体重建3D图像数据的方法

    公开(公告)号:US06720966B2

    公开(公告)日:2004-04-13

    申请号:US09742117

    申请日:2000-12-22

    IPC分类号: G06T1700

    CPC分类号: G06T11/005

    摘要: In a method for reconstructing 3D image data, a number of 2D central projections from different projection directions is acquired with a planar detector and radiation emanating from a radiation source, and a volume of interest of an examination subject to be three-dimensionally reconstructed is identified by mixing in variable and mutually dependent marks into at least two 2D central projections.

    摘要翻译: 在重建3D图像数据的方法中,使用平面检测器和从辐射源发出的辐射来获取来自不同投影方向的多个2D中心投影,并且识别经受三维重建的检查的感兴趣体积被识别 通过将可变和相互依赖的标记混合到至少两个2D中心突起中。

    Tomosynthetic image reconstruction method, and diagnostic device operating according to the method
    4.
    发明授权
    Tomosynthetic image reconstruction method, and diagnostic device operating according to the method 有权
    复合图像重建方法,诊断装置按照该方法操作

    公开(公告)号:US07558366B2

    公开(公告)日:2009-07-07

    申请号:US11685280

    申请日:2007-03-13

    IPC分类号: A61B6/04 H05G1/60

    CPC分类号: G06T11/006 G06T2211/421

    摘要: In a tomosynthetic image reconstruction method and diagnostic device operating with such a method, a tomosynthetic 3D x-ray image is reconstructed by a discrete filtered back projection from a number of individual digital projection data recorded from different project angles within a restricted angular range, in which at least one filtering is performed with a convolution kernel that, in the local area outside of its central value, corresponds to an exponential function.

    摘要翻译: 在使用这种方法操作的断层合成图像重建方法和诊断装置中,通过离散的滤波反投影,从在受限角度范围内的不同投影角度记录的多个单独的数字投影数据重构断层合成3D X射线图像, 其中使用在其中心值之外的局部区域中对应于指数函数的卷积核进行至少一个滤波。

    3D image reconstruction method for use in computed tomography
    5.
    发明授权
    3D image reconstruction method for use in computed tomography 有权
    用于计算机断层扫描的3D图像重建方法

    公开(公告)号:US6125163A

    公开(公告)日:2000-09-26

    申请号:US236046

    申请日:1999-01-22

    IPC分类号: A61B6/03 G06T1/00 G06T11/00

    摘要: In an image reconstruction method for 3-d image reconstruction, particularly a fast reconstruction method for rotational angiography employing a pyramidal X-ray beam and a surface detector, image reconstruction is accomplished in a computer using an algorithm of the filtered back-projection type, and, outside the zero component, the components of the convolution kernel correspond to an exponential function. A particularly fast image reconstruction is achieved with such a convolution kernel by using recursive filtering.

    摘要翻译: 在用于3-d图像重建的图像重建方法中,特别是使用锥体X射线束和表面检测器的旋转血管造影的快速重建方法,在使用滤波反投影型算法的计算机中完成图像重建, 并且在零分量之外,卷积核的分量对应于指数函数。 通过使用递归滤波,通过这样的卷积核实现特别快速的图像重建。

    Method for extending the display of a 2D image of an object region
    8.
    发明授权
    Method for extending the display of a 2D image of an object region 有权
    扩展对象区域的2D图像的显示的方法

    公开(公告)号:US07508388B2

    公开(公告)日:2009-03-24

    申请号:US11438029

    申请日:2006-05-19

    IPC分类号: G06T15/00

    摘要: In a method to extend the display range of 2D image recordings of an object region, particularly in medical applications, first 2D or 3D image data are acquired from a larger object region, and at least one additional set for 2D image data of a smaller object region is acquired that lies within the larger object region The first 2D or 3D image data are brought into registration with the additional 2D image data with a projection geometry. From the first 2D or 3D image data, an image data set is generated for an image display of the first object region, which is suitable for combination with the additional 2D image data. In the image display of the larger object region, at least temporarily, at least one display of the additional 2D image data is integrated, by image data in the first image data set, for the image display of the larger object region, being replaced with image data from the additional 2D image data representing the smaller image region. An overview of the larger object region is thus enabled, with the smaller object region of interest being displayed within the image in a more up-to-date fashion, as well as with higher resolution and/or higher contrast.

    摘要翻译: 在扩展对象区域的2D图像记录的显示范围的方法中,特别是在医疗应用中,从更大的对象区域获取第一2D或3D图像数据,并且对于较小对象的2D图像数据至少一个附加集合 获取位于较大对象区域内的区域。将第一2D或3D图像数据与具有投影几何形状的附加2D图像数据对准。 从第一2D或3D图像数据,生成用于第一对象区域的图像显示的图像数据集,其适于与附加2D图像数据组合。 在较大对象区域的图像显示中,至少临时地,通过第一图像数据组中的图像数据,将更大的对象区域的图像显示的图像数据中的至少一个附加2D图像数据的显示集成,被更换为 来自表示较小图像区域的附加2D图像数据的图像数据。 因此,可以使更大的对象区域的概述被实现,其中较小的感兴趣的对象区域以更新的方式显示在图像内,以及更高的分辨率和/或更高的对比度。

    Method for surface-contouring of a three-dimensional image
    10.
    发明授权
    Method for surface-contouring of a three-dimensional image 有权
    三维图像表面轮廓的方法

    公开(公告)号:US07376254B2

    公开(公告)日:2008-05-20

    申请号:US10721564

    申请日:2003-11-25

    申请人: Karl Barth

    发明人: Karl Barth

    IPC分类号: G06K9/00

    摘要: In a method for surface contouring of a three-dimensional image of an object a set of planes is placed through the three-dimensional image, and the contours that are imaged in each of the planes of the first set of planes, and that are associated with the surface contour of the three-dimensional image, are determined. The contours are subsequently combined into a surface grid associated with the surface contour of the three-dimensional image.

    摘要翻译: 在用于物体的三维图像的表面轮廓化的方法中,通过三维图像放置一组平面,并且在第一组平面的每个平面中成像并且相关联的轮廓 确定三维图像的表面轮廓。 轮廓随后被组合成与三维图像的表面轮廓相关联的表面网格。