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    System and method for distributed processing of tomographic images
    2.
    发明授权
    System and method for distributed processing of tomographic images 有权
    断层图像分布式处理的系统和方法

    公开(公告)号：US08811707B2

    公开(公告)日：2014-08-19

    申请号：US13218236

    申请日：2011-08-25

    申请人： John Irvin Jackson ,  Darin Robert Okerlund ,  Bernhard Erich Hermann Claus ,  Maria Iatrou ,  Jed Douglas Pack

    发明人： John Irvin Jackson ,  Darin Robert Okerlund ,  Bernhard Erich Hermann Claus ,  Maria Iatrou ,  Jed Douglas Pack

    IPC分类号： G06K9/00 ,  G06T11/00

    CPC分类号： G06K9/00 ,  G06T11/003 ,  G06T11/006 ,  G06T2211/412 ,  G06T2211/428

    摘要： A system and method for distributed and coordinated image processing of tomographic images utilizing processors on a medical imaging device and a separate workstation is disclosed. The system includes an image acquisition device to acquire image data of a subject and an image processor to receive the image data therefrom. The image processor is programmed to reconstruct initial images of a region-of-interest (ROI) from the image data, identify initial images on which to perform image correction, and generate an image correction request for the images identified for image correction, with the image correction request specifying a processing operation to be performed on the respective images. The image processor is further programmed to transfer the reconstructed initial images to a separate workstation that automatically initiates the image correction upon verifying a presence of an image correction request on the initial images so as to generate corrected images.

    摘要翻译： 公开了一种使用医疗成像设备和单独工作站上的处理器进行分层和协调的图像处理的系统和方法。 该系统包括用于获取被摄体的图像数据的图像获取装置和用于从其接收图像数据的图像处理器。 图像处理器被编程为从图像数据重建感兴趣区域（ROI）的初始图像，识别在其上进行图像校正的初始图像，并且生成用于图像校正的图像的图像校正请求，其中 图像校正请求指定要对各个图像执行的处理操作。 图像处理器还被编程为将重构的初始图像传送到单独的工作站，其在验证在初始图像上存在图像校正请求时自动启动图像校正，以便产生校正图像。

    MULTI-PHASE COMPUTED TOMOGRAPHY IMAGE RECONSTRUCTION
    3.
    发明申请
    MULTI-PHASE COMPUTED TOMOGRAPHY IMAGE RECONSTRUCTION 审中-公开
    多相计算机图像重构

    公开(公告)号：US20140016847A1

    公开(公告)日：2014-01-16

    申请号：US13549138

    申请日：2012-07-13

    申请人： Brian Edward Nett ,  Jed Douglas Pack ,  Kai Zeng

    发明人： Brian Edward Nett ,  Jed Douglas Pack ,  Kai Zeng

    IPC分类号： G06K9/00

    CPC分类号： G06T11/008 ,  G06T2211/412

    摘要： Approaches for reconstructing multi-phase images are disclosed. In certain embodiments, calibrated X-ray projection data acquired over at least a partial axial or low-pitch helical rotation is accessed and used to reconstruct one or more initial images. A frequency transform is performed on the images to generate respective frequency domain representations. Elements of the frequency domain representations are weighted based on at least the difference between the phase associated with the elements and a specified phase of interest. The weighted frequency domain representations are combined to generate a frequency domain representation at the phase of interest, which can be used to generate an image at the phase of interest.

    摘要翻译： 公开了重建多相图像的方法。 在某些实施例中，通过至少部分轴向或低间距螺旋旋转采集的经校准的X射线投影数据被访问并用于重建一个或多个初始图像。 对图像执行频率变换以产生相应的频域表示。 至少基于与元素相关的相位与感兴趣的特定阶段之间的差异对频域表示的元素进行加权。 加权频域表示被组合以在感兴趣的阶段生成频域表示，其可以用于在感兴趣的阶段生成图像。

    System and method for image reconstruction
    5.
    发明授权
    System and method for image reconstruction 有权
    图像重建系统和方法

    公开(公告)号：US08284892B2

    公开(公告)日：2012-10-09

    申请号：US12340787

    申请日：2008-12-22

    申请人： Jed Douglas Pack ,  Kai Zeng ,  Zhye Yin

    发明人： Jed Douglas Pack ,  Kai Zeng ,  Zhye Yin

    IPC分类号： A61B6/03

    CPC分类号： A61B6/032 ,  A61B6/027 ,  G06T11/006

    摘要： A method of performing a computed tomographic image reconstruction is provided. The method provides for performing a short scan of an imaging object to acquire a short scan data, performing a plurality of image reconstructions based on the short scan data wherein the plurality of image reconstructions result in a corresponding plurality of image volumes wherein the image reconstructions use different view weighting functions, filtering the plurality of image volumes such that when the volumes are added together, the frequency domain data is substantially uniformly weighted. Further, the method provides for combining the plurality of image volumes together to produce a final image volume.

    摘要翻译： 提供了一种执行计算机断层图像重建的方法。 该方法提供对成像对象进行短扫描以获取短扫描数据，基于短扫描数据执行多个图像重建，其中多个图像重建产生相应的多个图像体积，其中图像重建使用 不同的视图加权函数，对多个图像卷进行过滤，使得当体积相加在一起时，频域数据基本上均匀加权。 此外，该方法提供将多个图像体积组合在一起以产生最终图像体积。

    Ray consistency based reconstruction of helical cone beam data
    6.
    发明授权
    Ray consistency based reconstruction of helical cone beam data 有权
    基于雷达一致性的重建螺旋锥束数据

    公开(公告)号：US07933375B2

    公开(公告)日：2011-04-26

    申请号：US11771297

    申请日：2007-06-29

    申请人： Jed Douglas Pack

    发明人： Jed Douglas Pack

    IPC分类号： A61B6/03

    CPC分类号： G06T11/005 ,  A61B6/027 ,  Y10S378/901

    摘要： A CT imaging system includes a computer that is programmed to rebin cone beam projection data into a series of two-dimensional sinograms based on an optimized ray consistency approach. The computer receives cone beam data from a detector array and is programmed to specify a plurality of view angles for the cone beam data. The computer selects a plurality of measured rays for each of the plurality of specified view angles, the plurality of measured rays having a view angle approximate to the specified view angle as determined by an optimized ray consistency. The computer also forms a two-dimensional sinogram for each of the plurality of specified view angles based on the selected plurality of measured rays. The computer then defines an image surface for each of the plurality of specified view angles based on the selected plurality of measured rays.

    摘要翻译： CT成像系统包括计算机，其被编程为基于优化的射线一致性方法将锥形束投影数据重新构成一系列二维正弦图。 计算机从检测器阵列接收锥形束数据，并被编程为指定锥形束数据的多个视角。 计算机为多个指定视角中的每一个选择多个测量光线，多个测量光线具有近似于由优化射线一致性确定的指定视角的视角。 计算机还基于所选择的多个测量的光线形成用于多个指定视角中的每一个的二维正弦图。 然后，计算机基于所选择的多个测量的光线来定义多个指定视角中的每一个的图像表面。

    Acquisition and reconstruction of projection data using a stationary CT geometry
    7.
    发明授权
    Acquisition and reconstruction of projection data using a stationary CT geometry 有权
    使用固定CT几何获取和重建投影数据

    公开(公告)号：US07706499B2

    公开(公告)日：2010-04-27

    申请号：US11725892

    申请日：2007-03-20

    申请人： Jed Douglas Pack ,  Zhye Yin ,  Samit Kumar Basu ,  John Charles Hill ,  Peter Michael Edic

    发明人： Jed Douglas Pack ,  Zhye Yin ,  Samit Kumar Basu ,  John Charles Hill ,  Peter Michael Edic

    IPC分类号： H05G1/60

    CPC分类号： G01T1/2985 ,  A61B6/027

    摘要： Systems and methods are provided for acquiring and reconstructing projection data using a computed tomography (CT) system having stationary distributed X-ray sources and detector arrays. In one embodiment, a non-sequential activation of X-ray source locations on an annular source is employed to acquire projection data. In another embodiment, a distributed source is tilted relative to an axis of the scanner to acquire the projection data. In a further embodiment, a plurality of X-ray source locations on an annular source are activated such that the aggregated signals correspond to two or more sets of spatially interleaved helical scan data.

    摘要翻译： 提供了使用具有固定分布式X射线源和检测器阵列的计算机断层摄影（CT）系统来获取和重建投影数据的系统和方法。 在一个实施例中，使用在环形源上的X射线源位置的非顺序激活来获取投影数据。 在另一个实施例中，分布式源相对于扫描器的轴线倾斜以获取投影数据。 在另一实施例中，环形源上的多个X射线源位置被激活，使得聚集的信号对应于两组或多组空间交错的螺旋扫描数据。

    RAY CONSISTENCY BASED RECONSTRUCTION OF HELICAL CONE BEAM DATA
    8.
    发明申请
    RAY CONSISTENCY BASED RECONSTRUCTION OF HELICAL CONE BEAM DATA 有权
    基于雷达一致性的螺旋锥束数据重建

    公开(公告)号：US20080192886A1

    公开(公告)日：2008-08-14

    申请号：US11771297

    申请日：2007-06-29

    申请人： Jed Douglas Pack

    发明人： Jed Douglas Pack

    IPC分类号： A61B8/13

    CPC分类号： G06T11/005 ,  A61B6/027 ,  Y10S378/901

    摘要： A CT imaging system includes a computer that is programmed to rebin cone beam projection data into a series of two-dimensional sinograms based on an optimized ray consistency approach. The computer receives cone beam data from a detector array and is programmed to specify a plurality of view angles for the cone beam data. The computer selects a plurality of measured rays for each of the plurality of specified view angles, the plurality of measured rays having a view angle approximate to the specified view angle as determined by an optimized ray consistency. The computer also forms a two-dimensional sinogram for each of the plurality of specified view angles based on the selected plurality of measured rays. The computer then defines an image surface for each of the plurality of specified view angles based on the selected plurality of measured rays.

    摘要翻译： CT成像系统包括计算机，其被编程为基于优化的射线一致性方法将锥形束投影数据重新构成一系列二维正弦图。 计算机从检测器阵列接收锥形束数据，并被编程为指定锥形束数据的多个视角。 计算机为多个指定视角中的每一个选择多个测量光线，多个测量光线具有近似于由优化射线一致性确定的指定视角的视角。 计算机还基于所选择的多个测量的光线形成用于多个指定视角中的每一个的二维正弦图。 然后，计算机基于所选择的多个测量的光线来定义多个指定视角中的每一个的图像表面。

    METHODS FOR ANALYTIC RECONSTRUCTION FOR MULT-SOURCE INVERSE GEOMETRY CT
    9.
    发明申请
    METHODS FOR ANALYTIC RECONSTRUCTION FOR MULT-SOURCE INVERSE GEOMETRY CT 有权
    用于多源反演几何CT的分析重建方法

    公开(公告)号：US20080049891A1

    公开(公告)日：2008-02-28

    申请号：US11741359

    申请日：2007-04-27

    申请人： Zhye Yin ,  Jed Douglas Pack ,  Bruno K.B. De Man ,  Norbert J. Pelc

    发明人： Zhye Yin ,  Jed Douglas Pack ,  Bruno K.B. De Man ,  Norbert J. Pelc

    IPC分类号： G06T11/00

    CPC分类号： G06T11/006 ,  G06T2211/416 ,  G06T2211/421

    摘要： Disclosed are embodiments of methods for reconstructing x-ray projection data (e.g., one or more sinograms) acquired using a multi-source, inverse-geometry computed tomography (“IGCT”) scanner. One embodiment of a first method processes an IGCT sinogram by rebinning first in “z” and then in “xy,” with feathering applied during the “xy” rebinning. This produces an equivalent of a multi-axial 3rd generation sinogram, which may be further processed using a parallel derivative and/or Hilbert transform. A TOM-window (with feathering) technique and a combined backprojection technique may also be applied to produce a reconstructed volume. An embodiment of a second method processes an IGCT sinogram using a parallel derivative and/or redundancy weighting. The second method may also use signum weighting, TOM-windowing (with feathering), backprojection, and a Hilbert Inversion to produce another reconstructed volume.

    摘要翻译： 公开了用于重建使用多源反相几何计算机断层摄影（“IGCT”）扫描仪获取的x射线投影数据（例如，一个或多个正弦图）的方法的实施例。 第一种方法的一个实施例通过在“z”中首先重新组合，然后在“xy”中重新组合来处理IGCT正弦图，在“xy”重组期间应用羽化。 这产生等效的多轴向第三代正弦图，其可以使用平行导数和/或希尔伯特变换进一步处理。 TOM窗口（具有羽化）技术和组合的反投影技术也可以应用于产生重建体积。 第二种方法的实施例使用并行导数和/或冗余加权处理IGCT正弦图。 第二种方法还可以使用信号加权，TOM窗口（具有羽化），反投影和希尔伯特反演来产生另一个重建的体积。