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    A METHOD OF AND A SYSTEM FOR ADAPTING A GEOMETRIC MODEL USING MULTIPLE PARTIAL TRANSFORMATIONS
    3.
    发明授权
    A METHOD OF AND A SYSTEM FOR ADAPTING A GEOMETRIC MODEL USING MULTIPLE PARTIAL TRANSFORMATIONS 有权
    方法和系统几何模型与几个部分TRANSFORMATIONS适应

    公开(公告)号：EP1929444B1

    公开(公告)日：2011-11-16

    申请号：EP06809355.8

    申请日：2006-09-20

    申请人： Philips Intellectual Property & Standards GmbH ,  Koninklijke Philips Electronics N.V.

    发明人： ECABERT, Olivier ,  PETERS, Jochen ,  WEESE, Juergen

    IPC分类号： G06T7/00

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

    摘要： The invention relates to a method (100) of adapting a geometric model to an image data comprising determining a first partial transformation for mapping a first part of the geometric model into the image data and a second partial transformation for mapping a second part of the geometric model into the image data. By determining the first partial transformation of the first part of the geometric model and the second partial transformation of the second part of the geometric model, the geometric model can assume more shapes and therefore can be more accurately adapted to an object comprised in the image data.

    摘要翻译： 本发明涉及一种适应几何模型的图像数据包含确定性挖掘的第一部分变换为所述几何模型的第一部分映射到所述图像数据，并且用于映射几何的第二部分的第二部分变换的方法（100） 建模成的图像数据。 通过确定性挖掘几何模型和所述几何模型的第二部分的第二部分变换的所述第一部分的所述第一部分转变，几何模型可以假设更多的形状，因此可更精确地设定angepasst中的图像数据为对象包括 ，

    MODEL-BASED CORONARY CENTERLINE LOCALIZATION
    6.
    发明公开
    MODEL-BASED CORONARY CENTERLINE LOCALIZATION 有权
    MODELLBASIERTE ORTUNG DER KORONAREN ZENTRALLINIE

    公开(公告)号：EP2074585A2

    公开(公告)日：2009-07-01

    申请号：EP07826579.0

    申请日：2007-09-28

    申请人： Koninklijke Philips Electronics N.V. ,  Philips Intellectual Property & Standards GmbH

    发明人： VON BERG, Jens ,  HOFMANN, Bernd ,  LORENZ, Cristian ,  ECABERT, Olivier ,  PETERS, Jochen ,  WEESE, Juergen

    IPC分类号： G06T5/00

    CPC分类号： G06T7/30 ,  A61B5/055 ,  A61B6/504 ,  A61B6/5229 ,  A61B8/0891 ,  A61B8/5238 ,  G06F19/00 ,  G06T2207/20044 ,  G06T2207/30101 ,  Y10S128/922

    摘要： The invention relates to a system (100) for registering a vessel model with an image data set based on a joined model comprising a reference object model and the vessel model, the system comprising: a placement unit (110) for placing the joined model in a space of the image data set, thereby creating a placed joined model comprising a placed reference object model and a placed vessel model; a computation unit (120) for computing a deformation field based on a landmark displacement field comprising displacements of landmarks of the placed reference object model relative to corresponding landmarks in the image data set; a transformation unit (130) for transforming the placed joined model using the deformation field, thereby creating a transformed joined model comprising a transformed reference object model and a transformed vessel model; and a registration unit (140) for registering the transformed vessel model with the image data set based on modifying the transformed vessel model and optimizing an objective function of the modified transformed vessel model, wherein the objective function comprises a location-prior term based on a localization of the modified transformed vessel model relative to the transformed joined model. Hence, the system is arranged to model a vessel taking into account the localization of a vessel model relative to a reference anatomical structure described by a reference model.

    摘要翻译： 本发明涉及一种用于根据包括参考对象模型和血管模型的联合模型将血管模型注册到图像数据集的系统（100），该系统包括：一个放置单元（110），用于将连接的模型放置在 图像数据集合的空间，从而创建包括放置的参考对象模型和放置的容器模型的放置的连接模型; 计算单元（120），用于基于地标位移场计算变形场，所述地标位移场包括相对于所述图像数据集中的对应界标放置的参考对象模型的界标的位移; 变换单元（130），用于使用变形场变换放置的接合模型，从而创建包括变换的参考对象模型和变换的容器模型的变换的连接模型; 以及注册单元（140），用于基于修改所述经变换的血管模型并优化所述经修改的经转化的血管模型的目标函数，将所述转化的血管模型与所述图像数据集进行登记，其中所述目标函数包括基于 修改的转化血管模型相对于转化的连接模型的定位。 因此，该系统被设置成考虑到血管模型相对于由参考模型描述的参考解剖结构的定位来建模血管。

    ACCESSING MEDICAL IMAGE DATABASES USING ANATOMICAL SHAPE INFORMATION
    7.
    发明公开
    ACCESSING MEDICAL IMAGE DATABASES USING ANATOMICAL SHAPE INFORMATION 审中-公开
    获得医疗图像数据库解剖表单中使用信息

    公开(公告)号：EP2074538A1

    公开(公告)日：2009-07-01

    申请号：EP07826546.9

    申请日：2007-09-26

    申请人： Koninklijke Philips Electronics N.V. ,  Philips Intellectual Property & Standards GmbH

    发明人： WEESE, Juergen ,  LEHMANN, Helko

    IPC分类号： G06F19/00

    CPC分类号： G06F17/30247 ,  G06F19/00 ,  G06F19/321

    摘要： The invention relates to a system (100) for retrieving a volumetric image data subset comprised in a data storage (105) of volumetric image data sets, the system comprising: a first query unit (111; 113) for composing a first query for searching the data storage (105) for a volumetric image data set comprising the volumetric image data subset; a second query unit (112; 113) for composing a second query for searching the volumetric image data set for the volumetric image data subset, the second query comprising anatomical structure information for identifying an anatomical structure within the volumetric image data set; a first determination unit (121; 123) for determining the volumetric image data set, based on the first query; a second determination unit (122; 123) for determining the volumetric image data subset of the volumetric image data set, based on the anatomical structure identified within the volumetric image data set, using the anatomical structure information comprised in the second query; and a retrieval unit (125) for retrieving the determined volumetric image data subset. The system is thus capable of retrieving a reduced amount of data describing the anatomical structure, i.e. a subset of a volumetric image data set.

    A METHOD OF GENERATING A 2-D IMAGE OF A 3-D OBJECT
    8.
    发明公开
    A METHOD OF GENERATING A 2-D IMAGE OF A 3-D OBJECT 有权
    用于生产3-D点的2-D图象

    公开(公告)号：EP1922698A2

    公开(公告)日：2008-05-21

    申请号：EP06795738.1

    申请日：2006-08-23

    申请人： Philips Intellectual Property & Standards GmbH ,  Koninklijke Philips Electronics N.V.

    发明人： KIEFER, Gundolf ,  WEESE, Juergen

    IPC分类号： G06T15/00 ,  G06T11/00

    CPC分类号： G06T15/50

    摘要： There is described a method for generating a 2-D image of a 3-D object represented by a volume data set comprising a multiplicity of data points each having an opacity value. A plurality of notional rays are cast through the 3-D object and for each ray, a ray path is divided into a plurality of base sampling intervals defined by data points on the path. If it is determined that a difference in opacity values across a base sampling interval can become greater than a pre-determined value, successively smaller sampling regions are generated within the base sampling interval until it is determined that a difference in opacity values across each generated smaller sampling interval in the base interval is less than the pre¬ determined threshold. Values indicative of an interaction between the ray and the 3-D object in the sampling intervals along the path are accumulated using a direct volume rendering procedure to determine a pixel value in the 2-D image.

    SYSTEM AND METHOD FOR THE GUIDANCE OF A CATHETER IN ELECTROPHYSIOLOGIC INTERVENTIONS
    9.
    发明公开
    SYSTEM AND METHOD FOR THE GUIDANCE OF A CATHETER IN ELECTROPHYSIOLOGIC INTERVENTIONS 有权
    系统中建立电生理手术导管

    公开(公告)号：EP1850757A2

    公开(公告)日：2007-11-07

    申请号：EP06710722.7

    申请日：2006-01-23

    申请人： Koninklijke Philips Electronics N.V. ,  Philips Intellectual Property & Standards GmbH

    发明人： WEESE, Juergen ,  MOLLUS, Sabine ,  ECK, Kai ,  BREDNO, Joerg

    IPC分类号： A61B6/12 ,  A61B5/044 ,  A61B5/05

    CPC分类号： A61B5/042 ,  A61B6/12 ,  A61B6/4441 ,  A61B6/487 ,  A61B6/503 ,  A61B6/5288

    摘要： The invention relates to a system and a method for the guidance of a catheter (20) with an electrode (21) in an electrophysiological procedure. A sequence of images (I1, ... Ik, ...) of the catheter (20) and of a resting reference catheter (30) is generated with an X-ray device (10) and stored together with the associated electrographic recordings from the electrodes (21, 31). A reference image (Ik) may then be selected from said sequence that corresponds to a desired electrographic pattern (Ek). In a next step, the positions (T, R) of the catheters (20, 30) are localized on the reference image (Ik), wherein the position (R) of the reference catheter (30) can be identified with the position of this catheter (30) on an actual image (I). Thus it is possible to determine on the actual image also a target position (T') for the catheter (20) that corresponds to the position (T) of this catheter (20) on the reference image (Ik). Said target position (T) may finally be indicated on a monitor (60) to assist the guidance of the catheter (20) to a desired location.

    IMAGE SEGMENTATION
    10.
    发明公开
    IMAGE SEGMENTATION 有权
    BILDSEGMENTIERUNG

    公开(公告)号：EP1371013A2

    公开(公告)日：2003-12-17

    申请号：EP02700508.1

    申请日：2002-02-20

    申请人： Koninklijke Philips Electronics N.V. ,  Philips Intellectual Property & Standards GmbH

    发明人： WEESE, Juergen ,  PEKAR, Vladimir ,  KAUS, Michael

    IPC分类号： G06T5/00

    CPC分类号： G06T7/0012 ,  G06T7/12 ,  G06T7/149 ,  G06T2207/10072 ,  G06T2207/30012

    摘要： A method of segmenting a selected region from a multi-dimensional dataset, which method comprises the steps of setting up a shape model representing the general outline of the selected region and setting up an adaptive mesh. The adaptive mesh represents an approximate contour of the selected region. The adaptive mesh is initialized on the basis of the shape model. Furthermore, the adaptive mesh is deformed in dependence on the shape model and on feature information of the selected region.

    摘要翻译： 一种从多维数据集分割所选区域的方法，该方法包括以下步骤：设置表示所选区域的总体轮廓的形状模型并设置自适应网格。 自适应网格表示所选区域的近似轮廓。 基于形状模型初始化自适应网格。 此外，自适应网格根据形状模型和所选区域的特征信息而变形。