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    • 3. 发明申请
    • METHOD OF TOMOGRAPHIC IMAGING
    • 图像成像方法
    • WO2004052206A1
    • 2004-06-24
    • PCT/IB2003/005741
    • 2003-12-04
    • PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBHKONINKLIJKE PHILIPS ELECTRONICS N.V.NETSCH, ThomasBARSCHDORF, Hans
    • NETSCH, ThomasBARSCHDORF, Hans
    • A61B6/08
    • A61B6/08
    • The invention relates to a method of tomographic imaging, and in particular a CT or MR method, for the repetitive production of diagnostic slice images of a part of a patient's body. To allow a geometrical transformation (2) to be determined, current reference slice images (1) of the part of the body, which are brought into agreement with earlier reference slice images (3) of the part of the body are first made in this case. Current imaging parameters (5) are then calculated for a current diagnostic slice image (6) by transforming earlier imaging parameters by the geometrical transformation (2) previously determined. To give greater accuracy and, at the same time, a short image-making time, the image proposes that at least two current reference slice images (1, 1') be made, whose image planes are preset in such a way that their relative positions and orientations in three dimensions agree with the relative positions and orientations in three dimensions of the earlier reference slice images (3, 3'), the geometrical transformation (2) being determined in such a way that it brings all the current reference slice images (1, 1') in agreement with the corresponding earlier reference slice images (3, 3') simultaneously.
    • 本发明涉及用于重复生产患者身体的一部分的诊断切片图像的断层成像方法,特别是CT或MR方法。 为了允许确定几何变换(2),首先在身体的一部分与先前的参考切片图像(3)一致的身体部分的当前参考切片图像(1) 案件。 然后通过先前确定的几何变换(2)将较早的成像参数进行变换,计算当前诊断切片图像(6)的当前成像参数(5)。 为了提供更高的准确度,并且同时缩短了图像制作时间,图像提出了至少两个当前的参考切片图像(1,1'),其图像平面被预设为使得它们的相对 三维中的位置和取向与早期参考切片图像(3,3')的三维的相对位置和取向一致,几何变换(2)被确定为使得所有当前参考切片图像 (1,1')与相应的早期参考切片图像(3,3')同时地一致。
    • 6. 发明申请
    • CHOOSING ANATOMICAL VARIANT MODEL FOR IMAGE SEGMENTATION
    • 选择用于图像分割的解剖学变体模型
    • WO2012035488A1
    • 2012-03-22
    • PCT/IB2011/053991
    • 2011-09-13
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBHLORENZ, CristianBARSCHDORF, HansKLINDER, TobiasHANNA, Raghed
    • LORENZ, CristianBARSCHDORF, HansKLINDER, TobiasHANNA, Raghed
    • G06T7/00
    • G06T7/0012G06T7/12G06T7/149G06T15/08G06T17/00G06T2207/30004
    • The invention relates to a system (100) for segmenting an object in an image, comprising a first adapter (110) for adapting a first model for segmenting the object to the image, an analyzer (115) for extracting a feature from the image based on the adapted first model, a selector (120) for selecting a second model for segmenting the object from a plurality of models for segmenting the object, based on the feature extracted from the image, wherein the second model comprises additional detail of the object, an initializer (125) for initializing the second model based on the adapted first model and/or the feature extracted from the image, and a second adapter (130) for adapting the initialized second model to the image. The features extracted from the image based on the adapted first model help the system (100) to select the second model for segmenting the object from a plurality of models for segmenting the object. The adapted first model and/or the extracted features are also used for initializing the second model. Because the second model comprises the additional detail of the object, the segmentation result using the second model is more complete than the segmentation result obtained using the first model. Moreover, the initialization of the second model based on the adapted first model and/or the detected features improves the accuracy of the second model adaptation.
    • 本发明涉及一种用于分割图像中的对象的系统(100),包括用于适配用于将对象分割成图像的第一模型的第一适配器(110),用于从图像中提取特征的分析器(115) 在适配的第一模型上,基于从图像提取的特征,选择器(120),用于从多个模型中选择用于分割对象的第二模型,用于分割对象,其中第二模型包括对象的附加细节, 用于基于所述适配的第一模型和/或从所述图像提取的特征来初始化所述第二模型的初始化器(125)和用于将所述初始化的第二模型适配到所述图像的第二适配器(130)。 基于适配的第一模型从图像提取的特征帮助系统(100)选择用于从多个模型分割对象的第二模型以分割对象。 适应的第一模型和/或提取的特征也用于初始化第二模型。 因为第二模型包括对象的附加细节,所以使用第二模型的分割结果比使用第一模型获得的分割结果更完整。 此外,基于适应的第一模型和/或检测到的特征的第二模型的初始化提高了第二模型适应的准确性。
    • 8. 发明申请
    • REDUCTION OF HEART MOTION ARTIFACTS IN THORACIC CT IMAGING
    • 减少心脏CT成像中心脏运动的影响
    • WO2008026141A2
    • 2008-03-06
    • PCT/IB2007/053403
    • 2007-08-27
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBHBARSCHDORF, HansVON BERG, JensKUHN, Michael, H.LORENZ, CristianBLAFFERT, Thomas
    • BARSCHDORF, HansVON BERG, JensKUHN, Michael, H.LORENZ, CristianBLAFFERT, Thomas
    • G06T7/20A61B5/00
    • G06T7/251G06T7/149G06T7/33G06T2200/04G06T2207/10081G06T2207/30048G06T2207/30061G06T2211/412
    • The invention relates to a system (100) for adapting a plurality of model meshes to a plurality of image data, the system comprising a registration unit (110) for registering the plurality of model meshes with the plurality of image data on the basis of a computation of a registration transformation for transforming the plurality of model meshes, and an adaptation unit (120) for adapting the plurality of registered model meshes to the plurality of image data on the basis of a computation of locations of mesh vertices of the plurality of model meshes. The system (100) may further comprise a computing unit (130) for computing sparse vector fields comprising vectors of displacements of vertices of the adapted model meshes, an approximation unit (140) for computing dense vector fields on the basis of the sparse vector fields, a merge unit (150) for merging image data sets by means of the computed dense vector fields, and a reconstruction unit (155) for reconstructing a motion-compensated image data from the computed dense vector fields. The described system (100) is capable of reducing motion artifacts in tomographic images computed from data acquired at a plurality of different cardiac cycle phases.
    • 本发明涉及一种用于将多个模型网格适配到多个图像数据的系统(100),该系统包括登记单元(110),用于基于多个图像数据向多个图像数据登记多个模型网格 用于变换多个模型网格的注册变换的计算;以及适应单元,用于根据多个模型的网格顶点的位置的计算来将多个注册模型网格适配到多个图像数据 网格。 系统(100)还可以包括计算单元(130),用于计算包括适应模型网格的顶点位移矢量的稀疏矢量场,用于基于稀疏矢量场计算密集矢量场的近似单元(140) ,用于通过所计算的密集矢量场合并图像数据组的合并单元(150),以及用于从所计算的密集矢量场重构运动补偿图像数据的重建单元(155)。 所描述的系统(100)能够减少从在多个不同的心动周期阶段获取的数据计算的断层图像中的运动伪影。
    • 10. 发明申请
    • X-RAY SOURCE APPARATUS, COMPUTER TOMOGRAPHY APPARATUS, AND METHOD OF OPERATING AN X-RAY SOURCE APPARATUS
    • X射线源装置,计算机摄影装置和操作X射线源装置的方法
    • WO2006038191A2
    • 2006-04-13
    • PCT/IB2005/053272
    • 2005-10-05
    • KONINKLIJKE PHILIPS ELECTRONICS N.V.BARSCHDORF, HansSCHLOMKA, Jens-Peter
    • BARSCHDORF, HansSCHLOMKA, Jens-Peter
    • G01N23/04H01J35/14H01J35/30
    • H01J35/14G01N23/046G01N2223/419H01J35/30
    • An X-ray source apparatus (100) comprises a cathode (101), comprises an electron beam deflection means including one or more electron beam deflection elements (103) and comprises an anode (102). The cathode (101) is adapted to emit an electron beam (104) towards the electron beam deflection means. The electron beam deflection means is adapted to deflect an electron beam (104) coming from the cathode (101) to a selectable part (110) of the anode (102), wherein the selectable part (110) of the anode (102) is selectable to by activating a single one of the one or more electron beam deflection elements (103), with the single activated electron beam deflection element (103) being arranged at a variable position along a propagation path of the electron beam (104) coming from the cathode, (101) such that the electron beam (104) is deflected to the selectable part (110) of the anode (102). The anode (102) is adapted to generate an X-ray beam (104) when being irradiated by an electron beam (104) deflected by the electron beam deflection means.
    • X射线源装置(100)包括阴极(101),包括包括一个或多个电子束偏转元件(103)并包括阳极(102)的电子束偏转装置。 阴极(101)适于向电子束偏转装置发射电子束(104)。 电子束偏转装置适于将来自阴极(101)的电子束(104)偏转到阳极(102)的可选择部分(110),其中阳极(102)的可选择部分(110)是 可选择地通过激活一个或多个电子束偏转元件(103)中的单个电子束偏转元件(103),单个激活的电子束偏转元件(103)被布置在沿着电子束(104)的传播路径的可变位置 阴极,(101)使得电子束(104)偏转到阳极(102)的可选择部分(110)。 当由电子束偏转装置偏转的电子束(104)照射时,阳极(102)适于产生X射线束(104)。