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    • 3. 发明申请
    • SYSTEM AND METHOD FOR IMAGE RECONSTRUCTION
    • 用于图像重构的系统和方法
    • US20100158194A1
    • 2010-06-24
    • US12340787
    • 2008-12-22
    • Jed Douglas PackKai ZengZhye Yin
    • Jed Douglas PackKai ZengZhye Yin
    • H05G1/64G06K9/00
    • A61B6/032A61B6/027G06T11/006
    • 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.
    • 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。
    • 6. 发明授权
    • System and method for image reconstruction
    • 图像重建系统和方法
    • US08284892B2
    • 2012-10-09
    • US12340787
    • 2008-12-22
    • Jed Douglas PackKai ZengZhye Yin
    • Jed Douglas PackKai ZengZhye Yin
    • A61B6/03
    • A61B6/032A61B6/027G06T11/006
    • 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.
    • 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。
    • 10. 发明授权
    • Methods for analytic reconstruction for mult-source inverse geometry CT
    • 多源逆几何CT分析重建方法
    • US07778386B2
    • 2010-08-17
    • US11741359
    • 2007-04-27
    • Zhye YinJed Douglas PackBruno K. B. De ManNorbert J. Pelc
    • Zhye YinJed Douglas PackBruno K. B. De ManNorbert J. Pelc
    • A61B6/03
    • G06T11/006G06T2211/416G06T2211/421
    • 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 combines 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.
    • 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。