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    GENERATION OF MOVING VASCULAR MODELS AND BLOOD FLOW ANALYSIS FROM MOVING VASCULAR MODELS AND PHASE CONTRAST MRI
    1.
    发明申请
    GENERATION OF MOVING VASCULAR MODELS AND BLOOD FLOW ANALYSIS FROM MOVING VASCULAR MODELS AND PHASE CONTRAST MRI 有权
    运动血管模型和血液流动分析从移动血管模型和相位对比MRI的生成

    公开(公告)号：US20110103665A1

    公开(公告)日：2011-05-05

    申请号：US12911829

    申请日：2010-10-26

    申请人： Mehmet Akif Gulsun ,  Andreas Greiser ,  Jens Guehring ,  Arne Littmann ,  Edgar Müller

    发明人： Mehmet Akif Gulsun ,  Andreas Greiser ,  Jens Guehring ,  Arne Littmann ,  Edgar Müller

    IPC分类号： G06K9/00

    CPC分类号： G06T7/251 ,  G06T7/248 ,  G06T2207/10096 ,  G06T2207/30104

    摘要： A method of deriving blood flow parameters from a moving three-dimensional (3D) model of a blood vessel includes determining a reference vascular cross-sectional plane through a location of a lumen in a moving 3D model of the blood vessel at one time within the model, determining a plurality of target vascular cross-sectional planes at multiple times via temporal tracking of the reference plane based on a displacement field, determining a plurality of contours based on an intersection of the target vascular cross-sectional planes with the moving 3D vessel model at multiple times within the model, and determining a blood flow parameter of the vessel from intersections of each contour of a given one of the times with a phase contrast magnetic resonance (PC-MRI) image of the blood vessel from the corresponding time.

    摘要翻译： 从血管的移动三维（3D）模型导出血液流动参数的方法包括：确定在血管的运动3D模型中的管腔位置的参考血管横截面平面 模型，基于位移场，通过基准平面的时间跟踪多次确定多个目标血管横截面，基于目标血管横截面与移动3D血管的交点确定多个轮廓 模型，并且从给定时间的每个轮廓与相应时间的血管的相位对比磁共振（PC-MRI）图像的交点确定血管的血流参数。

    Generation of moving vascular models and blood flow analysis from moving vascular models and phase contrast MRI
    2.
    发明授权
    Generation of moving vascular models and blood flow analysis from moving vascular models and phase contrast MRI 有权
    移动血管模型的生成和血液流动分析从移动血管模型和相位对比MRI

    公开(公告)号：US08675940B2

    公开(公告)日：2014-03-18

    申请号：US12911829

    申请日：2010-10-26

    申请人： Mehmet Akif Gulsun ,  Andreas Greiser ,  Jens Guehring ,  Arne Littmann ,  Edgar Müller

    发明人： Mehmet Akif Gulsun ,  Andreas Greiser ,  Jens Guehring ,  Arne Littmann ,  Edgar Müller

    IPC分类号： G06K9/00

    CPC分类号： G06T7/251 ,  G06T7/248 ,  G06T2207/10096 ,  G06T2207/30104

    摘要： A method of deriving blood flow parameters from a moving three-dimensional (3D) model of a blood vessel includes determining a reference vascular cross-sectional plane through a location of a lumen in a moving 3D model of the blood vessel at one time within the model, determining a plurality of target vascular cross-sectional planes at multiple times via temporal tracking of the reference plane based on a displacement field, determining a plurality of contours based on an intersection of the target vascular cross-sectional planes with the moving 3D vessel model at multiple times within the model, and determining a blood flow parameter of the vessel from intersections of each contour of a given one of the times with a phase contrast magnetic resonance (PC-MRI) image of the blood vessel from the corresponding time.

    摘要翻译： 从血管的移动三维（3D）模型导出血液流动参数的方法包括：确定在血管的运动3D模型中的管腔位置的参考血管横截面平面 模型，基于位移场，通过基准平面的时间跟踪多次确定多个目标血管横截面，基于目标血管横截面与移动3D血管的交点确定多个轮廓 模型，并且从给定时间的每个轮廓与相应时间的血管的相位对比磁共振（PC-MRI）图像的交点确定血管的血流参数。

    Method and System for Left Ventricle Detection in 2D Magnetic Resonance Images
    3.
    发明申请
    Method and System for Left Ventricle Detection in 2D Magnetic Resonance Images 有权
    二维磁共振图像左心室检测方法与系统

    公开(公告)号：US20100040272A1

    公开(公告)日：2010-02-18

    申请号：US12504047

    申请日：2009-07-16

    申请人： Yefeng Zheng ,  Xiaoguang Lu ,  Bogdan Georgescu ,  Edgar Müller ,  Dorin Comaniciu ,  Arne Littmann

    发明人： Yefeng Zheng ,  Xiaoguang Lu ,  Bogdan Georgescu ,  Edgar Müller ,  Dorin Comaniciu ,  Arne Littmann

    IPC分类号： G06K9/00 ,  A61B5/055

    CPC分类号： G06K9/6202 ,  G06K2209/051

    摘要： A method and system for left ventricle (LV) detection in 2D magnetic resonance imaging (MRI) images is disclosed. In order to detect the LV in a 2D MRI image, a plurality of LV candidates are detected, for example using marginal space learning (MSL) based detection. Candidates for distinctive anatomic landmarks associated with the LV are then detected in the 2D MRI image. In particular, apex candidates and base candidates are detected in the 2D MRI image. One of the LV candidates is selected as a final LV detection result using component-based voting based on the detected LV candidates, apex candidates, and base candidates.

    摘要翻译： 公开了一种用于2D磁共振成像（MRI）图像中左心室（LV）检测的方法和系统。 为了检测2D MRI图像中的LV，例如使用基于边缘空间学习（MSL）的检测来检测多个LV候选。 然后在2D MRI图像中检测与LV相关的特征性解剖学标记的候选者。 特别地，在2D MRI图像中检测到顶点候选和基础候选。 使用基于检测到的LV候选，顶点候选和基础候选的基于组件的投票，将LV候选中的一个选择为最终的LV检测结果。

    Method and system for left ventricle detection in 2D magnetic resonance images
    4.
    发明授权
    Method and system for left ventricle detection in 2D magnetic resonance images 有权
    二维磁共振图像左心室检测方法与系统

    公开(公告)号：US08406496B2

    公开(公告)日：2013-03-26

    申请号：US12504047

    申请日：2009-07-16

    申请人： Yefeng Zheng ,  Xiaoguang Lu ,  Bogdan Georgescu ,  Edgar Müller ,  Dorin Comaniciu ,  Arne Littmann

    发明人： Yefeng Zheng ,  Xiaoguang Lu ,  Bogdan Georgescu ,  Edgar Müller ,  Dorin Comaniciu ,  Arne Littmann

    IPC分类号： G06K9/00

    CPC分类号： G06K9/6202 ,  G06K2209/051

    摘要： A method and system for left ventricle (LV) detection in 2D magnetic resonance imaging (MRI) images is disclosed. In order to detect the LV in a 2D MRI image, a plurality of LV candidates are detected, for example using marginal space learning (MSL) based detection. Candidates for distinctive anatomic landmarks associated with the LV are then detected in the 2D MRI image. In particular, apex candidates and base candidates are detected in the 2D MRI image. One of the LV candidates is selected as a final LV detection result using component-based voting based on the detected LV candidates, apex candidates, and base candidates.

    摘要翻译： 公开了一种用于2D磁共振成像（MRI）图像中左心室（LV）检测的方法和系统。 为了检测2D MRI图像中的LV，例如使用基于边缘空间学习（MSL）的检测来检测多个LV候选。 然后在2D MRI图像中检测与LV相关的特征性解剖学标记的候选者。 特别地，在2D MRI图像中检测到顶点候选和基础候选。 使用基于检测到的LV候选，顶点候选和基础候选的基于组件的投票，将LV候选中的一个选择为最终的LV检测结果。

    Practical image reconstruction for magnetic resonance imaging
    6.
    发明授权
    Practical image reconstruction for magnetic resonance imaging 有权
    磁共振成像的实用图像重建

    公开(公告)号：US07903858B2

    公开(公告)日：2011-03-08

    申请号：US11926912

    申请日：2007-10-29

    申请人： Ti-chiun Chang ,  Jiayu Song ,  Tong Fang ,  Peter Speier ,  Edgar Müller

    发明人： Ti-chiun Chang ,  Jiayu Song ,  Tong Fang ,  Peter Speier ,  Edgar Müller

    IPC分类号： G06K9/00 ,  A61B5/05

    CPC分类号： G01R33/56 ,  G01R33/4824 ,  G01R33/5608

    摘要： A set of image-space data is reconstructed from a set of k-space data. The set of image-space data is generated by minimizing a cost functional by an iterative non-linear conjugate gradient process. The iterative process may be accelerated by introducing k-space weighting to the cost functional. With proper choice of k-space weighting, a block-Toeplitz matrix is generated which permits use of Fast Fourier Transform techniques. An image is rendered from the set of image-space data.

    摘要翻译： 从一组k空间数据重建一组图像空间数据。 通过使迭代非线性共轭梯度过程的功能最小化来生成图像空间数据集合。 可以通过向成本函数引入k空间加权来加速迭代过程。 通过适当选择k空间加权，生成块Toeplitz矩阵，其允许使用快速傅里叶变换技术。 从图像空间数据集中呈现图像。

    Black-to-color shifting security element
    9.
    发明授权
    Black-to-color shifting security element 有权
    黑色到彩色安全元素

    公开(公告)号：US08147932B2

    公开(公告)日：2012-04-03

    申请号：US11912348

    申请日：2006-04-05

    申请人： Claude-Alain Despland ,  Albert Stichelberger ,  Edgar Müller ,  Pierre Degott

    发明人： Claude-Alain Despland ,  Albert Stichelberger ,  Edgar Müller ,  Pierre Degott

    IPC分类号： B44F1/10 ,  B41M5/00 ,  G03G7/00

    CPC分类号： B42D25/29 ,  B42D25/328 ,  B42D25/364 ,  B42D2033/26 ,  B42D2035/24 ,  Y10S428/916 ,  Y10T428/24802

    摘要： The invention discloses a security element for a banknote, a document of value, right or identity, a ticket, a label, a branded good identifier, or a tax banderole. The element comprises a combination of a coating containing at least one optically variable pigment having a substantial viewing-angle dependent color variation, with at least one selective spectral absorbing material, which blocks out visible spectral components reflected by the optically variable pigment at orthogonal incidence. The security element appears black when viewed at orthogonal angle, and colored when viewed at grazing angle.

    摘要翻译： 本发明公开了一种用于钞票，价值文件，权利或身份证件，票证，标签，品牌商品标识符或税吏的安全元件。 该元件包括含有至少一种具有大致视角决定颜色变化的光学可变颜料的涂层与至少一种选择性光谱吸收材料的组合，其阻挡由光学可变颜料在正交入射下反射的可见光谱分量。 当以正交角度观察时，安全元件看起来为黑色，并且在掠角观察时显示为彩色。