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1. 发明申请

US20050190879A1 Reduced-size apparatus for non-intrusively inspecting an object 失效
标题翻译：用于非侵入性检查物体的减小尺寸的装置
公开(公告)号：US20050190879A1
公开(公告)日：2005-09-01
申请号：US10791470
申请日：2004-03-01
申请人： Francois Gaultier , Ugo Girolamo , Pierfrancesco Landolfi
发明人： Francois Gaultier , Ugo Girolamo , Pierfrancesco Landolfi
IPC分类号： A61B6/00 , G01N23/04 , G01T1/29 , G21K1/12 , H05G1/60
CPC分类号： G01T1/2985
摘要： This invention relates to an x-ray based non-intrusive inspection apparatus. An x-ray source is mounted to a gantry and provides x-rays that transmit through an object. The x-rays have an included angle between first and second shadow lines. A circle of reconstruction is formed upon rotation of the gantry having a radius from a center axis of rotation of the gantry to a closest point on the first shadow line. The second shadow line passes through the center axis so that x-rays transmit through only half of the circle of reconstruction at any given moment. The entire volume within the circle of reconstruction is scanned due to rotation of the gantry. Such an assembly allows for the x-ray source to be placed closer to the center axis of rotation of the gantry without reducing the radius of the circle of reconstruction.
摘要翻译：本发明涉及一种基于X射线的非侵入式检查装置。 X射线源安装在龙门架上，并提供通过物体传输的X射线。 x射线在第一和第二阴影线之间具有夹角。在具有从台架的旋转的中心轴线到第一阴影线的最近点的半径的台架旋转时形成重构圆。第二条阴影线穿过中心轴线，使得X射线在任何给定时刻仅透过重建圆圈的一半。由于台架的旋转，扫描重建圆内的整个体积。这种组件允许x射线源更靠近机架的旋转中心轴线放置，而不会减小重建圆的半径。

2. 发明申请

US20070140414A1 Apparatus and method for providing a near-parallel projection from helical scan data 有权
标题翻译：用于从螺旋扫描数据提供近平行投影的装置和方法
公开(公告)号：US20070140414A1
公开(公告)日：2007-06-21
申请号：US11295952
申请日：2005-12-07
申请人： Walter Garms , Ugo Girolamo , Matthew Merzbacher
发明人： Walter Garms , Ugo Girolamo , Matthew Merzbacher
IPC分类号： H05G1/60 , A61B6/00 , G01N23/00 , G21K1/12
CPC分类号： G01T1/2985 , A61B6/027 , G01V5/005
摘要： An apparatus and method for providing a projection image directly from data acquired by a CT scanner, the method comprising: acquiring an amount of data corresponding to an object that is scanned by the CT scanner, wherein the amount of data is generated by an x-ray source that projects a fan beam of x-rays toward a detector array on an opposite side of a gantry of the CT scanner as the object is passed through an opening in the gantry, the acquired amount of data comprising a reconstruction volume; selecting a viewing direction of the object; selecting a portion of a surface intersecting the reconstruction volume, wherein the selected portion comprises an imaging surface inside the reconstruction volume and corresponding to the viewing direction of the object; dividing the imaging surface into a plurality of rows and columns, thus creating a grid of points corresponding to the imaging surface; determining, for each point in the grid, a data point in the acquired amount of data corresponding to an x-ray source position wherein a ray from the x-ray source to the grid point is closest an orientation parallel to the view direction, and a detector position where the ray intersects the detector array; and presenting a projection image corresponding to the selected imaging surface, wherein the projection image comprises a plurality of projection points and each projection point in the projection image is a converted value of the data points of the acquired data.
摘要翻译：一种用于直接从由CT扫描器获取的数据提供投影图像的装置和方法，所述方法包括：获取与由CT扫描器扫描的对象相对应的数据量，其中数据量由x- 射线源，当所述物体通过所述台架中的开口时，将所述X射线的扇形束投射到所述CT扫描仪的台架的相对侧上的检测器阵列，所获取的数据量包括重建体积; 选择对象的观看方向; 选择与重建体积相交的表面的一部分，其中所选择的部分包括重建体积内的成像表面并且对应于对象的观察方向; 将成像表面分成多个行和列，从而产生与成像表面相对应的点的网格; 确定对于网格中的每个点，所获取的数据量对应于X射线源位置的数据点，其中从X射线源到网格点的射线最靠近与视图方向平行的取向，以及射线与检测器阵列相交的检测器位置; 并且呈现与所选择的成像表面对应的投影图像，其中所述投影图像包括多个投影点，并且所述投影图像中的每个投影点是所获取的数据的数据点的转换值。

3. 发明申请

US20070140415A1 Apparatus and method for providing an orthographic projection from helical scan data 有权
标题翻译：从螺旋扫描数据提供正投影的装置和方法
公开(公告)号：US20070140415A1
公开(公告)日：2007-06-21
申请号：US11295954
申请日：2005-12-07
申请人： Walter Garms , Ugo Girolamo , Matthew Merzbacher
发明人： Walter Garms , Ugo Girolamo , Matthew Merzbacher
IPC分类号： H05G1/60 , A61B6/00 , G01N23/00 , G21K1/12
CPC分类号： G01T1/2985 , A61B6/027 , G01V5/005 , Y10S378/901
摘要： An apparatus and method for providing a projection image directly from data acquired by a CT scanner, the method comprising: acquiring an amount of data corresponding to an entire object that is scanned by the CT scanner, wherein the amount of data is generated by an x-ray source that projects a fan beam of x-rays toward a detector array on an opposite side of a gantry of the CT scanner as the object is passed through an opening in the gantry; selecting an imaging plane, the imaging plane corresponding to a view of the object; dividing the imaging plane into a plurality of rows and columns, thus creating a grid of points corresponding to the imaging plane; determining, for each point in the grid, a data point from the acquired data corresponding to an x-ray source position wherein a ray from the x-ray source to the grid point is closest to a perpendicular orientation with respect to the imaging plane, and a detector position where the ray intersects the detector array; and presenting a projection image corresponding to the selected imaging plane, wherein the projection image comprises a plurality of projection points and each projection point in the projection image is a converted value of the data points of the data points of the acquired data.
摘要翻译：一种用于从CT扫描器获取的数据直接提供投影图像的装置和方法，所述方法包括：获取与由CT扫描仪扫描的整个对象相对应的数据量，其中数据量由x 射线源，当物体通过台架中的开口时，将X射线的扇形束投射到CT扫描仪的台架的相对侧上的检测器阵列; 选择成像平面，所述成像平面对应于所述物体的视图; 将成像平面分成多个行和列，从而产生与成像平面相对应的点的网格; 根据所获取的与X射线源位置相对应的数据，确定来自所述网格中的每个点的数据点，其中从所述X射线源到所述网格点的射线最靠近所述成像平面的垂直取向，以及光线与检测器阵列相交的检测器位置; 并且呈现与所选择的成像平面对应的投影图像，其中所述投影图像包括多个投影点，并且投影图像中的每个投影点是所获取的数据的数据点的数据点的转换值。

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