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    Simultaneous segmentation of multiple or composed objects by mesh adaptation
    1.
    发明申请
    Simultaneous segmentation of multiple or composed objects by mesh adaptation 有权
    通过网格匹配同时分割多个或组合对象

    公开(公告)号：US20060110037A1

    公开(公告)日：2006-05-25

    申请号：US10521182

    申请日：2003-07-15

    申请人： Michael Kaus ,  Jurgen Weese

    发明人： Michael Kaus ,  Jurgen Weese

    IPC分类号： G06K9/34

    CPC分类号： G06T7/149 ,  G06T7/12 ,  G06T2200/04 ,  G06T2207/10072 ,  G06T2207/30008 ,  G06T2207/30048

    摘要： Deformable models are used for the segmentation of structures in 3D images. The basic principle of such methods consists of the adaptation of flexible meshes to the image. However, the simultaneous segmentation of multiple or composed objects often causes problems in that spatial relationships between the objects are violated, or that meshes are intersecting each other. According to the present invention, a priori knowledge about spatial relationships between objects is introduced into the shaped model. This allows to maintain spatial relationships between the objects and to avoid intersecting meshes.

    摘要翻译： 可变形模型用于3D图像中的结构分割。 这种方法的基本原理包括将柔性网格适应图像。 然而，多个或组合对象的同时分割通常导致在对象之间的空间关系被违反或者网格彼此相交的问题。 根据本发明，将关于物体之间的空间关系的先验知识引入成形模型。 这允许保持对象之间的空间关系并避免相交的网格。

    Automated measurement of objects using deformable models
    2.
    发明申请
    Automated measurement of objects using deformable models 有权
    使用可变形模型自动测量物体

    公开(公告)号：US20060165268A1

    公开(公告)日：2006-07-27

    申请号：US10521254

    申请日：2003-07-11

    申请人： Michael Kaus ,  Jurgen Weese ,  Steven Lobregt

    发明人： Michael Kaus ,  Jurgen Weese ,  Steven Lobregt

    IPC分类号： G06K9/00

    CPC分类号： G06T7/60 ,  Y10S128/922

    摘要： The present invention relates to the field of digital imaging, in particular to the field of estimating geometrical properties of an anatomical object. According to the present invention, geometrical properties are automatically measured and geometrical properties which have a definition based on sub-parts of the object are derived. To do this, additional geometrical information is integrated into a surface model. Geometrical properties are included into the surface model by identifying and labelling sub-parts of the surface model and fitting geometric primitives to these sub-parts. This advantageously allows to identify these sub-parts on an unseen object surface and to automatically extract relevant geometric properties.

    摘要翻译： 本发明涉及数字成像领域，特别涉及估计解剖学对象的几何性质的领域。 根据本发明，自动地测量几何特性，并导出具有基于对象的子部分的定义的几何属性。 为此，额外的几何信息被集成到表面模型中。 通过识别和标记表面模型的子部分并将这些子部分拟合几何图元，将几何属性包含在表面模型中。 这有利地允许在未看见的物体表面上识别这些子部件并且自动提取相关的几何特性。

    Image visualization
    4.
    发明申请
    Image visualization 有权
    图像可视化

    公开(公告)号：US20070183649A1

    公开(公告)日：2007-08-09

    申请号：US10598745

    申请日：2005-03-07

    申请人： Gundolf Kiefer ,  Helko Lehmann ,  Jurgen Weese ,  Marc Busch

    发明人： Gundolf Kiefer ,  Helko Lehmann ,  Jurgen Weese ,  Marc Busch

    IPC分类号： G06K9/00

    CPC分类号： G06T15/08 ,  G06T15/005

    摘要： Medical imaging modalities generate increasingly more and very large three-dimensional data sets. According to an exemplary embodiment of the present invention, a three-dimensional data set of an object of interest is interactively visualized with a varying sampling rate in an image. Advantageously, a focus area may be moved by a user interactively during rendering, wherein the sampling rate of a particular part of the image is defined by its relative position to the focus area. Advantageously, this may allow for an improvement of an overall rendering performance.

    摘要翻译： 医学成像模式产生越来越多和非常大的三维数据集。 根据本发明的示例性实施例，感兴趣对象的三维数据集在图像中以变化的采样率被交互地可视化。 有利地，焦点区域可以在渲染期间由用户交互地移动，其中图像的特定部分的采样率由其与焦点区域的相对位置来定义。 有利地，这可以允许改进整体渲染性能。

    Data set visualization
    5.
    发明申请
    Data set visualization 有权
    数据集可视化

    公开(公告)号：US20070161892A1

    公开(公告)日：2007-07-12

    申请号：US10599864

    申请日：2005-04-11

    申请人： Kai Eck ,  Alexandra Groth ,  Gundolf Kiefer ,  Helko Lehmann ,  Jorg Bredno ,  Jurgen Weese

    发明人： Kai Eck ,  Alexandra Groth ,  Gundolf Kiefer ,  Helko Lehmann ,  Jorg Bredno ,  Jurgen Weese

    IPC分类号： A61B5/05

    CPC分类号： G06F19/321 ,  A61B5/055 ,  A61B6/03 ,  A61B6/541 ,  A61B8/0833 ,  A61B8/0841 ,  A61B8/463 ,  A61B8/466 ,  A61B10/0233 ,  A61B90/36 ,  G06F19/00 ,  G16H50/50

    摘要： In real-time three-dimensional imaging the choice of the visualization method and orientation is crucial for intervention success. The key question is what to ignore and what to show in real-time applications, where user control is not appropriate. The invention addresses this problem by visualizing an intervention (caused by a user) to an object of interest without the requirement of an interactive input by the user. Advantageously, according to an exemplary embodiment of the present invention, parameters for a visualization procedure are automatically chosen during data acquisition which may allow for an efficient tracking of the actual orientation and relative position of the structure with respect to the object of interest.

    摘要翻译： 在实时三维成像中，可视化方法和方向的选择对于干预成功至关重要。 关键的问题是什么要忽略，什么显示在实时应用程序，用户控制不合适。 本发明通过将干预（由用户引起）视觉化为感兴趣的对象而不需要用户的交互式输入来解决该问题。 有利地，根据本发明的示例性实施例，在数据获取期间自动选择用于可视化过程的参数，这可以有效地跟踪结构相对于感兴趣对象的实际取向和相对位置。

    Device and method for displaying ultrasound images of a vessel
    6.
    发明申请
    Device and method for displaying ultrasound images of a vessel 审中-公开
    用于显示血管超声图像的装置和方法

    公开(公告)号：US20070038081A1

    公开(公告)日：2007-02-15

    申请号：US10570235

    申请日：2004-08-23

    申请人： Kai Eck ,  Barbara Martin-Leung ,  Jorg Bredno ,  Jurgen Weese

    发明人： Kai Eck ,  Barbara Martin-Leung ,  Jorg Bredno ,  Jurgen Weese

    IPC分类号： A61B8/00

    CPC分类号： A61B8/4416 ,  A61B6/12 ,  A61B6/5247 ,  A61B8/12

    摘要： The invention relates to a device and a method for displaying a vessel (2) with the aid of intravascular ultrasound images (1). A sequence of intravascular ultrasound images (I(E,x)) is generated by means of a probe (5) and stored in a memory (10) in a manner indexed by the associated location (x) where they were generated and also the associated heartbeat phase (E) and/or breathing phase. During a subsequent medical intervention, those ultrasound images (I1,12,13) which best correspond to the heartbeat phase of a current fluoroscopic image (At) or belong to the current stopping location of a catheter (13) can be selected from the memory (10) and displayed on a monitor (12).

    摘要翻译： 本发明涉及借助于血管内超声图像（1）显示血管（2）的装置和方法。 通过探针（5）产生血管内超声图像序列（I（E，x）），并以由它们产生的相关位置（x）索引的方式存储在存储器（10）中，并且还 相关的心跳期（E）和/或呼吸阶段。 在随后的医疗干预期间，最好对应于电流的心跳相位的那些超声图像（I 1，1 2，1 3 3） 可以从存储器（10）中选择属于导管（13）的当前停止位置的荧光透视图像（A SUB），并显示在监视器（12）上。

    Apparatus and Method for the Processing of Sectional Images
    8.
    发明申请
    Apparatus and Method for the Processing of Sectional Images 审中-公开
    用于处理截面图像的装置和方法

    公开(公告)号：US20080144904A1

    公开(公告)日：2008-06-19

    申请号：US10597713

    申请日：2005-02-01

    申请人： Jens Wiegert ,  Georg Rose ,  Jurgen Weese

    发明人： Jens Wiegert ,  Georg Rose ,  Jurgen Weese

    IPC分类号： G06K9/00

    CPC分类号： G06T5/50 ,  G06T11/005 ,  G06T2207/30004

    摘要： The invention relates to an apparatus and a method for the processing of reconstructed 3D images (I) in C-arm based volume imaging which often exhibit spatially slowly varying inhomogeneities caused by inconsistent projection data. To correct the images (I), a retrospective homogenization procedure is proposed. The image (I) is segmented (11, 12) into principal classes like bone, tissue and air based on their gray values. Only the tissue-regions (M) are then used as support in order to fit (14) a spatially slowly varying 2D baseline (B) representing the smooth shape of cupping or other inhomogeneities. Finally the inverse of the estimated 2D baseline is subtracted from the original slice (I) to correct for the inhomogeneities.

    摘要翻译： 本发明涉及一种用于处理基于C臂的体积成像中的重建3D图像（I）的装置和方法，其经常表现出由不一致的投影数据引起的空间上缓慢变化的不均匀性。 为了校正图像（I），提出了回顾性均匀化程序。 图像（I）根据其灰度值被分段（11,12）成主要类，如骨，组织和空气。 然后仅使用组织区域（M）作为支撑体，以便适应（14）代表拔罐或其他不均匀性的平滑形状的空间上缓慢变化的2D基线（B）。 最后，从原始切片（I）中减去估计的2D基线的逆，以校正不均匀性。

    METHOD FOR MEASUREMENT OF A FLOW IN AN OBJECT, ESPECIALLY A LUMEN OR A VESSEL
    10.
    发明申请
    METHOD FOR MEASUREMENT OF A FLOW IN AN OBJECT, ESPECIALLY A LUMEN OR A VESSEL 审中-公开
    用于测量物体中的流动的方法，特别是一个或多个容器

    公开(公告)号：US20110026775A1

    公开(公告)日：2011-02-03

    申请号：US12673988

    申请日：2008-08-18

    申请人： Irina Waechter ,  Jorg Bredno ,  Jurgen Weese ,  David John Hawker ,  Kawaldeep Singh Rhode

    发明人： Irina Waechter ,  Jorg Bredno ,  Jurgen Weese ,  David John Hawker ,  Kawaldeep Singh Rhode

    IPC分类号： G06T7/20

    CPC分类号： G06T7/20 ,  A61B6/507 ,  G06T2207/10072 ,  G06T2207/30104

    摘要： It is disclosed a method and a device for measurement of a flow in an object, especially a lumen or a vessel, comprising: generating a temporal sequence of images of the object; determining reliability maps, whereas a reliability map corresponds to an image of the object. Another exemplary embodiment is a method and a device for calculating flow parameters (13), comprising: comparing (15) of a predicted image of a flow (16) with an image of a flow (17) with respect to a reliability map (18) of an image of the flow; and adaptation (12) of the predicted flow (16) with respect to the result of the comparing (15). Furthermore, it is described a computer program having instructions recorded thereon in order to execute one of the above-mentioned methods.

    摘要翻译： 公开了一种用于测量物体，特别是内腔或血管中的流动的方法和装置，包括：产生物体的图像的时间序列; 确定可靠性图，而可靠性图对应于对象的图像。 另一个示例性实施例是一种用于计算流量参数（13）的方法和装置，包括：将流（16）的预测图像与流（17）的图像相对于可靠度图（18）进行比较（15） ）流的图像; 和相对于比较结果（15）的预测流（16）的适应（12）。 此外，描述了其上记录有指令的计算机程序，以执行上述方法之一。