公开(公告)号：US07801587B2

公开(公告)日：2010-09-21

申请号：US11505255

申请日：2006-08-16

申请人： Richard L. Webber ,  Roger A. Horton

发明人： Richard L. Webber ,  Roger A. Horton

IPC分类号： A61B5/05

CPC分类号： A61B6/145 ,  A61B6/12 ,  G06T11/005 ,  G06T11/008 ,  G06T2211/436

摘要： A system for constructing image slices through a selected object, the system comprising an identifiable fiducial reference in a fixed position relative to the selected object, wherein the fiducial reference comprises at least two identifiable reference markers. A source of radiation is provided for irradiating the selected object and the fiducial reference to form a projected image of the selected object and the fiducial reference which is recorded by a recording medium.

摘要翻译： 一种用于通过所选择的对象构建图像切片的系统，所述系统包括相对于所选对象的固定位置中的可识别基准参考，其中所述基准参考包括至少两个可识别参考标记。 提供辐射源以照射所选择的对象和基准参考，以形成由记录介质记录的所选对象和基准参考的投影图像。

公开(公告)号：US07110807B2

公开(公告)日：2006-09-19

申请号：US10972887

申请日：2004-10-25

申请人： Richard L. Webber ,  Roger A. Horton

发明人： Richard L. Webber ,  Roger A. Horton

IPC分类号： A61B6/03

CPC分类号： A61B6/145 ,  A61B6/12 ,  G06T11/005 ,  G06T11/008 ,  G06T2211/436

摘要： A system for constructing image slices through a selected object, the system comprising an identifiable fiducial reference in a fixed position relative to the selected object, wherein the fiducial reference comprises at least two identifiable reference markers. A source of radiation is provided for irradiating the selected object and the fiducial reference to form a projected image of the selected object and the fiducial reference which is recorded by a recording medium.

摘要翻译： 一种用于通过所选择的对象构建图像切片的系统，所述系统包括相对于所选对象的固定位置中的可识别基准参考，其中所述基准参考包括至少两个可识别参考标记。 提供辐射源以照射所选择的对象和基准参考，以形成由记录介质记录的所选对象和基准参考的投影图像。

公开(公告)号：US4247780A

公开(公告)日：1981-01-27

申请号：US46826

申请日：1979-06-08

申请人： Richard L. Webber ,  Roger N. Nagel

发明人： Richard L. Webber ,  Roger N. Nagel

IPC分类号： A61B6/03 ,  A61B6/14 ,  H04N5/32 ,  A61B6/00 ,  A61B6/08

CPC分类号： A61B6/4028 ,  A61B6/14 ,  H04N5/32

摘要： A system for reproducibly aiming an X-ray source array to provide substantial registration of exposure geometry through an organ or a portion of tissue from one examination to the next. The system derives functions or signals based on computer controlled X-ray source point geometries to create multiple images produced from known positions via a detector array which feeds this information to a computer image storage system and which provides for comparison of the detected signals with reference signals originally stored in a memory; the comparison yields correction signals which act to shift the X-ray raster toward restoration of the original effective geometry. Thus, the X-ray sources are coupled to the detector array through a feedback loop circuit including a computer which, by sequentially activating each X-ray point source and noting the resulting functions generated by the detector array, can compare the results with the stored functions and revise the working geometry to simulate that of the original geometry from which the stored reference functions were obtained. The computer also activates a visual display device providing a crude X-ray scan through the tissue of interest, which can be used to create low resolution tomograms of the irradiated structures.

摘要翻译： 一种用于可再现地瞄准X射线源阵列以提供通过器官或一部分组织从一个检查到下一个检查的暴露几何形状的实质记录的系统。 该系统基于计算机控制的X射线源点几何导出功能或信号，以通过检测器阵列创建由已知位置产生的多个图像，该检测器阵列将该信息馈送到计算机图像存储系统，并且将检测到的信号与参考信号进行比较 最初存储在内存中; 比较产生校正信号，其作用是将X射线光栅移向原始有效几何的恢复。 因此，X射线源通过包括计算机的反馈环路耦合到检测器阵列，计算机通过依次激活每个X射线点源并注意由检测器阵列产生的结果函数，可以将结果与存储的 功能和修改工作几何以模拟获取存储的参考函数的原始几何图形。 计算机还激活视觉显示装置，其提供通过感兴趣组织的粗X射线扫描，其可用于产生照射结构的低分辨率断层图像。

公开(公告)号：US06549607B1

公开(公告)日：2003-04-15

申请号：US09561376

申请日：2000-04-28

申请人： Richard L. Webber

发明人： Richard L. Webber

IPC分类号： A61B603

CPC分类号： G01N23/046 ,  A61B6/5258 ,  A61B6/548 ,  G01N2223/419 ,  Y10S378/901

摘要： A system and method for producing three-dimensional representations of an object. A first series of projected images of the selected object is recorded in a first projection plane and a second series of projected images of the selected object is recorded in a second projection plane. The first and the second series of projected images are rendered at a common magnification. The first set of projected images is then integrated into a first three-dimensional volume and the second set of projected images is integrated into a second three-dimensional volume. The three-dimensional representation of the object is then produced by combining one projected image from the first set of projected images with one projected image from the second set of projected images. Alternatively, the three-dimensional representation is produced by merging the first three-dimensional volume with the second three-dimensional volume.

摘要翻译： 一种用于产生对象的三维表示的系统和方法。 将所选择的对象的第一系列投影图像记录在第一投影平面中，并且将所选对象的第二系列投影图像记录在第二投影平面中。 投影图像的第一和第二系列以常见的放大倍率呈现。 然后将第一组投影图像集成到第一三维体积中，并且将第二组投影图像集成到第二三维体积中。 然后通过将来自第一组投影图像的一个投影图像与来自第二组投影图像的一个投影图像组合来产生对象的三维表示。 或者，通过将第一三维体积与第二三维体积合并来产生三维表示。

公开(公告)号：US5359637A

公开(公告)日：1994-10-25

申请号：US875249

申请日：1992-04-28

申请人： Richard L. Webber

发明人： Richard L. Webber

IPC分类号： A61B6/00 ,  A61B6/02 ,  A61B6/06 ,  A61B6/14 ,  G01N23/00

CPC分类号： A61B6/025 ,  A61B6/14 ,  A61B6/4291

摘要： A self-calibrating tomosynthetic x-ray system is provided. A calibrated device for recording radiographic images of a selected object irradiated by a source of radiation includes a first radiolucent radiographic recording medium in the form of a CCD device for recording a first projected radiographic image of the selected object. A second radiographic recording medium in the form of a CCD device is supported in fixed generally parallel position relative to the first radiographic recording medium to permit radiation from the source to pass through the first radiographic recording medium and to impinge upon the second radiographic recording medium for recording a second projected radiographic image of the selected object. A radiopaque fiducial reference in the form of a grid is supported in fixed position generally between the first and second radiographic recording mediums to permit a projected image of the radiopaque fiducial reference to be recorded on the second radiographic recording medium. Projected radiographic images of the object and the fiducial reference are then recorded at different arbitrary relative positions between the source of radiation and the object, the fiducial reference, and the recording mediums. An image of a selected object at a selected slice position through the object is synthesized from selected projected radiographic images of the object and the fiducial reference recorded by the calibrated device.

摘要翻译： 提供了自校准的合成x射线系统。 用于记录由辐射源照射的所选对象的放射照相图像的校准装置包括以CCD装置形式的第一射线照相记录介质，用于记录所选择的对象的第一投影放射照相图像。 CCD器件形式的第二放射线照相记录介质相对于第一放射线照相记录介质被支撑在固定的大致平行位置上，以允许来自源的辐射通过第一放射线照相记录介质并撞击在第二放射线照相记录介质上 记录所选对象的第二投影放射线图像。 通常在第一和第二放射线照相记录介质之间的固定位置支撑呈栅格形式的不透射线基准参考，以允许不透射线基准参考的投影图像被记录在第二放射照相记录介质上。 然后将物体和基准参考物的投影放射线图像记录在辐射源与物体之间的不同任意相对位置，基准参考和记录介质上。 通过对象的选定切片位置的选定对象的图像从被校准装置记录的对象和基准参考的选定的投射放射线图像合成。

公开(公告)号：US5214686A

公开(公告)日：1993-05-25

申请号：US808181

申请日：1991-12-13

申请人： Richard L. Webber

发明人： Richard L. Webber

IPC分类号： A61B6/14

CPC分类号： A61B6/466 ,  A61B6/14 ,  A61B6/4233

摘要： A panoramic dental radiography system projects multiple vertical, fan-shaped radiation beams through a subject's teeth and onto multiple detectors, with each fan-shaped beam avoiding the subject's spine. The radiographic source and radiographic detectors are rotated about a vertical axis, so that the detected radiation may be tomographically processed to produce a panoramic image of the teeth. The multiple vertical fan-shaped radiation beams are projected on either side of the spine, to reduce the radiographic dosage to the spine and to prevent the spine from blurring the panoramic radiograph. The resulting multiple projections can be tomosynthetically processed to produce a three-dimensional image of tissues of diagnostic interest, free of image artifacts produced by irradiation of the spine.

摘要翻译： 全景牙科放射学系统通过对象的牙齿和多个检测器投射多个垂直的扇形辐射束，每个扇形光束避开被检者的脊柱。 射线照相源和射线照相检测器围绕垂直轴旋转，使得检测到的辐射可以进行层析处理以产生牙齿的全景图像。 多个垂直扇形辐射束投射在脊柱的两侧，以减少对脊柱的射线照相剂量，并防止脊柱模糊全景X光片。 所得到的多个突出物可以进行体外合成处理，以产生诊断感兴趣的组织的三维图像，没有由脊柱照射产生的图像伪像。

公开(公告)号：US20110092812A1

公开(公告)日：2011-04-21

申请号：US12885910

申请日：2010-09-20

申请人： Richard L. Webber ,  Roger A. Horton

发明人： Richard L. Webber ,  Roger A. Horton

IPC分类号： A61B5/05

CPC分类号： A61B6/145 ,  A61B6/12 ,  G06T11/005 ,  G06T11/008 ,  G06T2211/436

摘要： A system for constructing image slices through a selected object, the system comprising an identifiable fiducial reference in a fixed position relative to the selected object, wherein the fiducial reference comprises at least two identifiable reference markers. A source of radiation is provided for irradiating the selected object and the fiducial reference to form a projected image of the selected object and the fiducial reference which is recorded by a recording medium.

摘要翻译： 一种用于通过所选择的对象构建图像切片的系统，所述系统包括相对于所选对象的固定位置中的可识别基准参考，其中所述基准参考包括至少两个可识别参考标记。 提供辐射源以照射所选择的对象和基准参考，以形成由记录介质记录的所选对象和基准参考的投影图像。

公开(公告)号：US06810278B2

公开(公告)日：2004-10-26

申请号：US09862006

申请日：2001-05-21

申请人： Richard L. Webber ,  Roger A. Horton

发明人： Richard L. Webber ,  Roger A. Horton

IPC分类号： A61B505

CPC分类号： A61B6/145 ,  A61B6/12 ,  G06T11/005 ,  G06T11/008 ,  G06T2211/436

摘要： A system for constructing image slices through a selected object, the system comprising an identifiable fiducial reference in a fixed position relative to the selected object, wherein the fiducial reference comprises at least two identifiable reference markers. A source of radiation is provided for irradiating the selected object and the fiducial reference to form a projected image of the selected object and the fiducial reference which is recorded by a recording medium.

摘要翻译： 一种用于通过所选择的对象构建图像切片的系统，所述系统包括相对于所选对象的固定位置中的可识别基准参考，其中所述基准参考包括至少两个可识别参考标记。 提供辐射源以照射所选择的对象和基准参考，以形成由记录介质记录的所选对象和基准参考的投影图像。

公开(公告)号：US6081577A

公开(公告)日：2000-06-27

申请号：US252632

申请日：1999-02-19

申请人： Richard L. Webber

发明人： Richard L. Webber

IPC分类号： G01N23/04 ,  A61B6/02

CPC分类号： G01N23/046 ,  A61B6/548 ,  G01N2223/419 ,  Y10S378/901

摘要： A system and method for producing three-dimensional representations of an object. A first series of projected images of the selected object is recorded in a first projection plane and a second series of projected images of the selected object is recorded in a second projection plane. The first and the second series of projected images are rendered at a common magnification. The first set of projected images is then integrated into a first three-dimensional volume and the second set of projected images is integrated into a second three-dimensional volume. The three-dimensional representation of the object is then produced by combining one projected image from the first set of projected images with one projected image from the second set of projected images. Alternatively, the three-dimensional representation is produced by merging the first three-dimensional volume with the second three-dimensional volume.

公开(公告)号：US5668844A

公开(公告)日：1997-09-16

申请号：US326332

申请日：1994-10-20

申请人： Richard L. Webber

发明人： Richard L. Webber

IPC分类号： A61B6/00 ,  A61B6/02 ,  A61B6/06 ,  A61B6/14 ,  G01T1/00

CPC分类号： A61B6/025 ,  A61B6/14 ,  A61B6/4291

摘要： A self-calibrating tomosynthetic x-ray system is provided. A calibrated device for recording radiographic images of a selected object irradiated by a source of radiation includes a first radiolucent radiographic recording medium in the form of a CCD device for recording a first projected radiographic image of the selected object. A second radiographic recording medium in the form of a CCD device is supported in fixed generally parallel position relative to the first radiographic recording medium to permit radiation from the source to pass through the first radiographic recording medium and to impinge upon the second radiographic recording medium for recording a second projected radiographic image of the selected object. A radiopaque fiducial reference in the form of a grid is supported in fixed position generally between the first and second radiographic recording mediums to permit a projected image of the radiopaque fiducial reference to be recorded on the second radiographic recording medium. Projected radiographic images of the object and the fiducial reference are then recorded at different arbitrary relative positions between the source of radiation and the object, the fiducial reference, and the recording mediums. An image of a selected object at a selected slice position through the object is synthesized from selected projected radiographic images of the object and the fiducial reference recorded by the calibrated device.

摘要翻译： 提供了自校准的合成x射线系统。 用于记录由辐射源照射的所选对象的放射照相图像的校准装置包括以CCD装置形式的第一射线照相记录介质，用于记录所选择的对象的第一投影放射照相图像。 CCD器件形式的第二放射线照相记录介质相对于第一放射线照相记录介质被支撑在固定的大致平行位置上，以允许来自源的辐射通过第一放射线照相记录介质并撞击在第二放射线照相记录介质上 记录所选对象的第二投影放射线图像。 通常在第一和第二放射线照相记录介质之间的固定位置支撑呈栅格形式的不透射线基准参考，以允许不透射线基准参考的投影图像被记录在第二放射照相记录介质上。 然后将物体和基准参考物的投影放射线图像记录在辐射源与物体之间的不同任意相对位置，基准参考和记录介质上。 通过对象的选定切片位置的选定对象的图像从被校准装置记录的对象和基准参考的选定的投射放射线图像合成。