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公开(公告)号：US20110142201A1
公开(公告)日：2011-06-16
申请号：US12638471
申请日：2009-12-15
申请人： Jeffrey Wayne Eberhard , Bernhard Erich Hermann Claus , Colin Richard Wilson , Kedar Bhalchandra Khare
发明人： Jeffrey Wayne Eberhard , Bernhard Erich Hermann Claus , Colin Richard Wilson , Kedar Bhalchandra Khare
IPC分类号： G01N23/04
CPC分类号： G01V5/0008
摘要： A multi-view imaging system and method is disclosed. The system comprises: multiple X-ray sources emitting X-rays in a fan-shaped beam each having a first and a second beam edge defining a fan beam angle located in a predetermined configuration around an imaging volume; a system controller configured to operate the X-ray sources; detectors, to detect X-rays and configured to generate signals in response to the detected X-rays, wherein each of the plurality of X-ray sources are configured to emit X-rays to one or more detectors, further wherein the X-ray source and two end points of a corresponding detector define a fan beam plane, further wherein a line extending from the X-ray source within the fan beam plane and through the imaging volume defines a projection direction, wherein adjacent projection directions define an angular spacing; an object conveyance device configured for transporting an object along a path of travel through the imaging volume between the X-ray sources and the detectors; and a detector interface configured to acquire the signals from the detectors, wherein the predetermined configuration is defined wherein either: the projection directions when viewed along a longitudinal axis of the image system surround the imaging volume by an angular range of about 180 degrees; or the projection directions when viewed along a longitudinal axis of the image system surround the imaging volume by an angular range of about 180°−180/Q, wherein Q is a quantity of the projection directions.
摘要翻译： 公开了一种多视点成像系统和方法。 该系统包括：多个X射线源在扇形光束中发射X射线，每个X射线源具有限定围绕成像体积的预定构型的扇形束角度的第一和第二光束边缘; 被配置为操作所述X射线源的系统控制器; 检测器，用于检测X射线并被配置为响应于检测到的X射线产生信号，其中多个X射线源中的每一个被配置为向一个或多个检测器发射X射线，其中X射线 相应检测器的源极和两个端点限定了扇形光束平面，其中，从扇形光束平面内的X射线源延伸并穿过成像体积的线限定了投射方向，其中相邻的投射方向限定角度间隔; 物体输送装置，被配置为沿着X射线源和检测器之间的成像体积沿行进路径传送物体; 以及检测器接口，被配置为从所述检测器获取信号，其中限定所述预定配置，其中：沿着所述图像系统的纵轴观察的投影方向围绕所述成像体积约180度的角度范围; 或者沿着图像系统的纵轴观察时的投影方向围绕成像体积约180°-180 / Q的角度范围，其中Q是投影方向的量。
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公开(公告)号：US08189735B2
公开(公告)日：2012-05-29
申请号：US12841815
申请日：2010-07-22
IPC分类号： A61B6/00
CPC分类号： G06T11/006 , G06T2211/424 , G06T2211/436
摘要： Systems and method for reconstruction of x-ray images are provided. One method includes acquiring a plurality of image views using an x-ray imaging system, the plurality of image views defining a limited tomographic dataset. The method also includes performing three-dimensional (3D) image reconstruction using the plurality of image views in an iterative reconstruction, wherein the iterative reconstruction includes forming a linear combination based on a plurality of previous iteration results. The method further includes displaying an image based on the image reconstruction, wherein the image includes clinically relevant high-frequency detail information.
摘要翻译： 提供了重建X射线图像的系统和方法。 一种方法包括使用X射线成像系统获取多个图像视图，所述多个图像视图限定有限层析成像数据集。 该方法还包括在迭代重建中使用多个图像视图执行三维（3D）图像重建，其中迭代重建包括基于多个先前的迭代结果形成线性组合。 该方法还包括基于图像重建来显示图像，其中图像包括临床相关的高频细节信息。
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公开(公告)号：US20120275563A1
公开(公告)日：2012-11-01
申请号：US13098173
申请日：2011-04-29
申请人： Joseph John Manak , Bernhard Erich Hermann Claus , Jens Rittscher , Hao Lai , Jeffrey Wayne Eberhard , Kedar Bhalchandra Khare , Cyril Riddell , Yves Lucien Trousset
发明人： Joseph John Manak , Bernhard Erich Hermann Claus , Jens Rittscher , Hao Lai , Jeffrey Wayne Eberhard , Kedar Bhalchandra Khare , Cyril Riddell , Yves Lucien Trousset
IPC分类号： G01N23/04
CPC分类号： A61B6/4452 , A61B6/00 , A61B6/027
摘要： The subject matter disclosed herein relates to X-ray imaging systems, and more specifically to digital X-ray imaging systems. In one embodiment, an imaging system includes an X-ray source configured to emit X-rays. The imaging system also includes an X-ray detector configured to detect the emitted X-rays and produce a corresponding electrical signal. The imaging system also includes a gantry configured to at least partially revolve the X-ray source and the X-ray detector about a primary rotational axis. The X-ray detector is coupled to the gantry so that a diagonal of the X-ray detector is oriented substantially perpendicular to the primary rotational axis.
摘要翻译： 本文公开的主题涉及X射线成像系统，更具体地涉及数字X射线成像系统。 在一个实施例中，成像系统包括被配置为发射X射线的X射线源。 成像系统还包括被配置为检测所发射的X射线并产生相应的电信号的X射线检测器。 成像系统还包括构造成使X射线源和X射线检测器围绕主旋转轴线至少部分地旋转的台架。 X射线检测器耦合到台架，使得X射线检测器的对角线基本上垂直于主旋转轴线定向。
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公开(公告)号：US09055913B2
公开(公告)日：2015-06-16
申请号：US13098173
申请日：2011-04-29
申请人： Joseph John Manak , Bernhard Erich Hermann Claus , Jens Rittscher , Hao Lai , Jeffrey Wayne Eberhard , Kedar Bhalchandra Khare , Cyril Riddell , Yves Lucien Trousset
发明人： Joseph John Manak , Bernhard Erich Hermann Claus , Jens Rittscher , Hao Lai , Jeffrey Wayne Eberhard , Kedar Bhalchandra Khare , Cyril Riddell , Yves Lucien Trousset
CPC分类号： A61B6/4452 , A61B6/00 , A61B6/027
摘要： The subject matter disclosed herein relates to X-ray imaging systems, and more specifically to digital X-ray imaging systems. In one embodiment, an imaging system includes an X-ray source configured to emit X-rays. The imaging system also includes an X-ray detector configured to detect the emitted X-rays and produce a corresponding electrical signal. The imaging system also includes a gantry configured to at least partially revolve the X-ray source and the X-ray detector about a primary rotational axis. The X-ray detector is coupled to the gantry so that a diagonal of the X-ray detector is oriented substantially perpendicular to the primary rotational axis.
摘要翻译： 本文公开的主题涉及X射线成像系统，更具体地涉及数字X射线成像系统。 在一个实施例中，成像系统包括被配置为发射X射线的X射线源。 成像系统还包括被配置为检测所发射的X射线并产生相应的电信号的X射线检测器。 成像系统还包括构造成使X射线源和X射线检测器围绕主旋转轴线至少部分地旋转的台架。 X射线检测器耦合到台架，使得X射线检测器的对角线基本上垂直于主旋转轴线定向。
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公开(公告)号：US20120020448A1
公开(公告)日：2012-01-26
申请号：US12841815
申请日：2010-07-22
IPC分类号： H05G1/60
CPC分类号： G06T11/006 , G06T2211/424 , G06T2211/436
摘要： Systems and method for reconstruction of x-ray images are provided. One method includes acquiring a plurality of image views using an x-ray imaging system, the plurality of image views defining a limited tomographic dataset. The method also includes performing three-dimensional (3D) image reconstruction using the plurality of image views in an iterative reconstruction, wherein the iterative reconstruction includes forming a linear combination based on a plurality of previous iteration results. The method further includes displaying an image based on the image reconstruction, wherein the image includes clinically relevant high-frequency detail information.
摘要翻译： 提供了重建X射线图像的系统和方法。 一种方法包括使用X射线成像系统获取多个图像视图，所述多个图像视图限定有限层析成像数据集。 该方法还包括在迭代重建中使用多个图像视图执行三维（3D）图像重建，其中迭代重建包括基于多个先前的迭代结果形成线性组合。 该方法还包括基于图像重建来显示图像，其中图像包括临床相关的高频细节信息。
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公开(公告)号：US08184887B2
公开(公告)日：2012-05-22
申请号：US12200946
申请日：2008-08-29
IPC分类号： G06K9/00
CPC分类号： G06T11/006 , G06T2211/424
摘要： A tomographic imaging apparatus is provided for generating images. The tomographic apparatus includes a computer programmed to access a data sinogram representative of the image, reconstruct the image, divide the image into a plurality of sub-regions, define a region of interest including at least one sub-region, reprojecting a region of interest or a complement of the region of interest to generate a region of interest sinogram or a sinogram representative of the complement of the region of interest and reconstructing a resultant sinogram using iterative methods to generate an image.
摘要翻译： 提供了一种用于生成图像的断层图像成像装置。 断层摄影装置包括被编程为访问表示图像的数据图形图像的计算机，重建图像，将图像划分成多个子区域，定义包括至少一个子区域的关注区域，重新投影感兴趣的区域 或感兴趣区域的补体以产生感兴趣区域的正弦图或表示感兴趣区域的补码的正弦图，并使用迭代方法重建生成的正弦图以生成图像。
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公开(公告)号：US08768095B2
公开(公告)日：2014-07-01
申请号：US12541550
申请日：2009-08-14
CPC分类号： G06K9/6232 , G06K9/0057
摘要： A signal processing method is provided. The signal processing method includes the steps of generating undersampled data corresponding to an object, determining a variable thresholding parameter based on a composition of the undersampled data, and iteratively determining thresholded coefficients to generate a plurality of coefficients by utilizing the undersampled data, a current solution and the variable thresholding parameter by updating the variable thresholding parameter and the current solution, and reconstructing a data signal using the plurality of coefficients.
摘要翻译： 提供信号处理方法。 信号处理方法包括以下步骤：产生与对象相对应的欠采样数据，基于欠采样数据的组合确定可变阈值参数，以及迭代确定阈值系数以通过利用欠采样数据产生多个系数，当前解 以及可变阈值参数，通过更新可变阈值参数和当前解，并且使用多个系数重构数据信号。
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公开(公告)号：US08559688B2
公开(公告)日：2013-10-15
申请号：US12826801
申请日：2010-06-30
IPC分类号： G06K9/00
CPC分类号： G06T11/006 , G06T2211/424 , G06T2211/436
摘要： A signal processing method is presented. The method includes acquiring undersampled data corresponding to an object, initializing a first image solution and a second image solution, determining a linear combination solution based upon the first image solution and the second image solution, generating a plurality of selected coefficients by iteratively updating the first image solution, the second image solution and the linear combination solution and adaptively thresholding one or more transform coefficients utilizing the undersampled data, an updated first image solution, an updated second image solution and an updated linear combination solution, and reconstructing a data signal using the plurality of selected coefficients.
摘要翻译： 提出了一种信号处理方法。 该方法包括获取与对象相对应的欠采样数据，初始化第一图像解和第二图像解，基于第一图像解和第二图像解确定线性组合解;通过迭代地更新第一图像解 图像解决方案，第二图像解决方案和线性组合解决方案，并且利用欠采样数据自适应地对一个或多个变换系数进行阈值化，更新的第一图像解决方案，更新的第二图像解决方案和更新的线性组合解决方案，以及使用 多个选定系数。
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公开(公告)号：US20120002854A1
公开(公告)日：2012-01-05
申请号：US12826801
申请日：2010-06-30
CPC分类号： G06T11/006 , G06T2211/424 , G06T2211/436
摘要： A signal processing method is presented. The method includes acquiring undersampled data corresponding to an object, initializing a first image solution and a second image solution, determining a linear combination solution based upon the first image solution and the second image solution, generating a plurality of selected coefficients by iteratively updating the first image solution, the second image solution and the linear combination solution and adaptively thresholding one or more transform coefficients utilizing the undersampled data, an updated first image solution, an updated second image solution and an updated linear combination solution, and reconstructing a data signal using the plurality of selected coefficients.
摘要翻译： 提出了一种信号处理方法。 该方法包括获取与对象相对应的欠采样数据，初始化第一图像解和第二图像解，基于第一图像解和第二图像解确定线性组合解;通过迭代地更新第一图像解 图像解决方案，第二图像解决方案和线性组合解决方案，并且利用欠采样数据，更新的第一图像解决方案，更新的第二图像解决方案和更新的线性组合解决方案自适应地阈值化一个或多个变换系数，并且使用 多个选定系数。
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公开(公告)号：US20110038560A1
公开(公告)日：2011-02-17
申请号：US12541550
申请日：2009-08-14
IPC分类号： G06K9/36
CPC分类号： G06K9/6232 , G06K9/0057
摘要： A signal processing method is provided. The signal processing method includes the steps of generating undersampled data corresponding to an object, determining a variable thresholding parameter based on a composition of the undersampled data, and iteratively determining thresholded coefficients to generate a plurality of coefficients by utilizing the undersampled data, a current solution and the variable thresholding parameter by updating the variable thresholding parameter and the current solution, and reconstructing a data signal using the plurality of coefficients.
摘要翻译： 提供信号处理方法。 信号处理方法包括以下步骤：产生与对象相对应的欠采样数据，基于欠采样数据的组合确定可变阈值参数，以及迭代确定阈值系数以通过利用欠采样数据产生多个系数，当前解 以及可变阈值参数，通过更新可变阈值参数和当前解，并且使用多个系数重构数据信号。
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