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    Methods and apparatus for helical multi-frame image reconstruction in a computed tomography fluoro system including data communications over a network
    1.
    发明授权
    Methods and apparatus for helical multi-frame image reconstruction in a computed tomography fluoro system including data communications over a network 有权
    在计算机断层摄影氟系统中进行螺旋多帧图像重建的方法和装置，包括网络上的数据通信

    公开(公告)号：US06298112B1

    公开(公告)日：2001-10-02

    申请号：US09472530

    申请日：1999-12-27

    申请人： Kishore Acharya ,  Sandeep Dutta ,  Jiang Hsieh

    发明人： Kishore Acharya ,  Sandeep Dutta ,  Jiang Hsieh

    IPC分类号： A61B603

    CPC分类号： A61B6/032 ,  A61B6/027 ,  A61B6/4085 ,  A61B6/548 ,  A61B6/581 ,  G06T11/005 ,  Y10S378/901

    摘要： A method for producing a base tomographic image and a subsequent tomographic image of an object using projection data acquired in a scan with a system which includes an x-ray source and a detector array which includes a plurality of detectors. The method includes applying a segmentation algorithm to the projection data to generate base image data comprising a plurality of segments; generating image data for each segment; generate subsequent image data based on image data of each segment; and communicating image data, segments, subsequent image data, or base image data to a remote facility via a network. The remote facility provides remote services.

    摘要翻译： 一种使用包括X射线源和包括多个检测器的检测器阵列的系统在扫描中获取的投影数据来产生物体的基础断层图像和后续断层图像的方法。 该方法包括将分割算法应用于投影数据以产生包括多个片段的基本图像数据; 生成每个段的图像数据; 基于每个段的图像数据生成后续图像数据; 以及经由网络将图像数据，段，后续图像数据或基本图像数据传送到远程设施。 远程设施提供远程服务。

    Method and apparatus for helical multi-frame image reconstruction in a computed tomography fluoro system
    2.
    发明授权
    Method and apparatus for helical multi-frame image reconstruction in a computed tomography fluoro system 失效
    计算机断层成像荧光系统中螺旋多帧图像重建的方法和装置

    公开(公告)号：US6038278A

    公开(公告)日：2000-03-14

    申请号：US108676

    申请日：1998-07-01

    申请人： Jiang Hsieh ,  Kishore Acharya ,  Sandeep Dutta

    发明人： Jiang Hsieh ,  Kishore Acharya ,  Sandeep Dutta

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

    CPC分类号： A61B6/032 ,  A61B6/4085 ,  G06T11/005

    摘要： The present invention, in one form, is a system for performing image reconstruction from projection data acquired in a helical scan. More specifically, the system implements an incremental reconstruction algorithm for helical scan projection data which does not require filtering, weighting and backprojecting such projection data for generating each image. Particularly, a segmentation algorithm divides the projection into a plurality of segments so that subsequent images are generated by generating image data only for those segments that have changed from the base image.

    摘要翻译： 本发明以一种形式是用于从螺旋扫描中获取的投影数据执行图像重建的系统。 更具体地，该系统对螺旋扫描投影数据实施增量重建算法，该算法不需要滤波，加权和反投影这种用于生成每个图像的投影数据。 特别地，分割算法将投影分成多个段，使得仅通过从基本图像改变的那些段生成图像数据来生成后续图像。

    Method and apparatus for 3D reconstruction of images
    4.
    发明授权
    Method and apparatus for 3D reconstruction of images 有权
    图像三维重建的方法和装置

    公开(公告)号：US07583777B2

    公开(公告)日：2009-09-01

    申请号：US10895704

    申请日：2004-07-21

    申请人： Xiangyang Tang ,  Jiang Hsieh ,  Sandeep Dutta ,  Roy Arnulf Helge Nilsen

    发明人： Xiangyang Tang ,  Jiang Hsieh ,  Sandeep Dutta ,  Roy Arnulf Helge Nilsen

    IPC分类号： A61B6/00

    CPC分类号： A61B6/032 ,  A61B6/027 ,  A61B6/583 ,  G06T11/005

    摘要： A method for producing an image of an object includes scanning an object with an imaging apparatus to collect projection data of the object utilizing cone sampling. The projection data is rebinned in a row-wise, fan-to-parallel fashion to produce rebinned data and the rebinned data is view-weighted to produce view-weighted data. The method further includes filtering the view-weighted data utilizing a row-wise ramp filter to produce filtered data and generating an image of the object utilizing the filtered data and a three-dimensional (3D) backprojection.

    摘要翻译： 用于产生对象的图像的方法包括用成像装置扫描对象，以采用锥形采样来收集对象的投影数据。 投影数据以行方式，扇形到并行的方式重新组合，以产生重新排列的数据，并且重新定位的数据被视图加权以产生视图加权数据。 该方法还包括利用逐行斜坡滤波器对视图加权数据进行滤波，以产生滤波数据，并利用滤波数据和三维（3D）反投影产生对象的图像。

    System and method for quality improvement in CT imaging
    7.
    发明授权
    System and method for quality improvement in CT imaging 有权
    CT成像质量改进的系统和方法

    公开(公告)号：US08699812B2

    公开(公告)日：2014-04-15

    申请号：US13156586

    申请日：2011-06-09

    申请人： Jiang Hsieh ,  Sandeep Dutta

    发明人： Jiang Hsieh ,  Sandeep Dutta

    IPC分类号： G06K9/40

    CPC分类号： G06T11/008 ,  G06T2211/424

    摘要： A non-transitory computer readable storage medium having stored thereon a computer program comprising instructions, which when executed by a computer, cause the computer to acquire an image comprising image data reconstructed from an imaging device. The instructions further cause the computer to apply a bloom reduction algorithm to the image configured to iteratively reduce a blooming of high-density objects in the image.

    摘要翻译： 一种非瞬时计算机可读存储介质，其上存储有包括指令的计算机程序，所述指令在由计算机执行时使计算机获取包括从成像设备重建的图像数据的图像。 该指令进一步导致计算机对构造成迭代地减少图像中的高密度物体的起伏的图像应用花纹缩小算法。

    SYSTEM AND METHOD FOR QUALITY IMPROVEMENT IN CT IMAGING
    8.
    发明申请
    SYSTEM AND METHOD FOR QUALITY IMPROVEMENT IN CT IMAGING 有权
    CT成像质量改进的系统与方法

    公开(公告)号：US20120314922A1

    公开(公告)日：2012-12-13

    申请号：US13156586

    申请日：2011-06-09

    申请人： Jiang Hsieh ,  Sandeep Dutta

    发明人： Jiang Hsieh ,  Sandeep Dutta

    IPC分类号： G06K9/40 ,  G06K9/00

    CPC分类号： G06T11/008 ,  G06T2211/424

    摘要： A non-transitory computer readable storage medium having stored thereon a computer program comprising instructions, which when executed by a computer, cause the computer to acquire an image comprising image data reconstructed from an imaging device. The instructions further cause the computer to apply a bloom reduction algorithm to the image configured to iteratively reduce a blooming of high-density objects in the image.

    摘要翻译： 一种非瞬时计算机可读存储介质，其上存储有包括指令的计算机程序，所述指令在由计算机执行时使计算机获取包括从成像设备重建的图像数据的图像。 该指令进一步导致计算机对构造成迭代地减少图像中的高密度物体的起伏的图像应用花纹缩小算法。