Method and device for geometry analysis and calibration of volumetric imaging systems
    11.
    发明申请
    Method and device for geometry analysis and calibration of volumetric imaging systems 有权
    体积成像系统几何分析和校准的方法和装置

    公开(公告)号:US20070122020A1

    公开(公告)日:2007-05-31

    申请号:US11289346

    申请日:2005-11-29

    IPC分类号: G06K9/00

    CPC分类号: G06T11/005 A61B6/583

    摘要: A technique is provided for geometrical analysis and calibration of a volumetric imaging system. The technique includes computing a projection error between estimated locations of a set of markers of a phantom based on a estimated imaging geometry and observed locations of the respective markers for at least one projection image, decomposing the computed projection error into one or more error components corresponding to respective geometric parameters of the imaging geometry, and updating at least one parameter of the estimated imaging geometry based on the one or more error components.

    摘要翻译: 提供了用于体积成像系统的几何分析和校准的技术。 该技术包括基于估计的成像几何学来计算一组体模的标记的估计位置之间的投影误差,以及针对至少一个投影图像的相应标记的观察位置,将计算出的投影误差分解成一个或多个相应的误差分量 到成像几何的相应几何参数,以及基于所述一个或多个误差分量来更新估计成像几何的至少一个参数。

    System and method for anatomy based reconstruction
    12.
    发明申请
    System and method for anatomy based reconstruction 有权
    用于解剖学重建的系统和方法

    公开(公告)号:US20070076928A1

    公开(公告)日:2007-04-05

    申请号:US11239830

    申请日:2005-09-30

    IPC分类号: G06K9/00

    CPC分类号: G06T11/006 G06T2211/436

    摘要: A technique is provided for performing diagnosis and/or analysis of a volumetric image generated via anatomy based reconstruction. The technique includes generating a three-dimensional image by reconstructing a plurality of residual projection images from which a contribution of one or more structures of interest has been removed. The technique also includes evaluating the three-dimensional image and/or the plurality of residual projection images to generate a diagnosis.

    摘要翻译: 提供了一种用于执行通过基于解剖学的重建产生的体积图像的诊断和/或分析的技术。 该技术包括通过重建多个剩余投影图像来生成三维图像,从而从中去除了一个或多个感兴趣结构的贡献。 该技术还包括评估三维图像和/或多个残留投影图像以产生诊断。

    Non-iterative algebraic reconstruction technique for tomosynthesis
    14.
    发明申请
    Non-iterative algebraic reconstruction technique for tomosynthesis 失效
    用于断层合成的非迭代代数重建技术

    公开(公告)号:US20050058240A1

    公开(公告)日:2005-03-17

    申请号:US10663309

    申请日:2003-09-16

    申请人: Bernhard Claus

    发明人: Bernhard Claus

    摘要: A method for obtaining a reconstruction of a tomographic dataset by filtering and combining the projection images, followed by a backprojection step. In one embodiment, the method can yield a reconstruction equivalent to an additive ART reconstruction, while in another embodiment the method represents a filtered back-projection type reconstruction. The computations do not require an iterative backprojection/re-projection step.

    摘要翻译: 一种通过滤波和组合投影图像,随后进行反投影步骤来获得断层数据集的重构的方法。 在一个实施例中,该方法可以产生等同于加法ART重构的重构,而在另一实施例中,该方法表示经滤波的反投影型重建。 计算不需要迭代反投影/重投影步骤。