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    2.
    发明专利
    未知

    公开(公告)号：DE602004015091D1

    公开(公告)日：2008-08-28

    申请号：DE602004015091

    申请日：2004-03-22

    Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV

    Inventor： WIEMKER RAFAEL ,  BLAFFERT THOMAS

    IPC: G06T5/00 ,  G06T7/60

    Abstract: Volume measurement of for example a tumor in a 3D image dataset is an important and often performed task. The problem is to segment the tumor out of this volume in order to measure its dimensions. This problem is complicated by the fact that the tumors are often connected to vessels and other organs. According to the present invention, an automated method and corresponding device and computer software are provided, which analyze a volume of interest around a singled out tumor, and which, by virtue of a 3D distance transform and a region drawing scheme advantageously allow to automatically segment a tumor out of a given volume.

    5.
    发明专利
    未知

    公开(公告)号：DE10160206A1

    公开(公告)日：2003-06-18

    申请号：DE10160206

    申请日：2001-12-07

    Applicant: PHILIPS INTELLECTUAL PROPERTY

    Inventor： WIEMKER RAFAEL ,  BLAFFERT THOMAS

    IPC: A61B5/00 ,  A61B5/055 ,  G06T15/40 ,  G06T15/00 ,  G06F19/00

    Abstract: The invention relates to a method of forming an isolated visualization of body structures from a 3D image data set, which method includes the steps of forming a binary data set in which all image elements contained in the 3D image data set are classified as image elements which are to be visualized in isolated form and image elements which are not to be visualized, where filtering of the image values is performed by means of limit values of the image values and all image elements of the binary data set of image structures contained in the 3D image data set which are smaller than a predetermined size are selected, of forming a filtered data set by entering the image values of the original 3D image data set for the image elements which are characterized as image elements to be visualized in isolated form in the binary data set, and of forming the visualization of the isolated body structure from the filtered data set. The invention also relates to a device for carrying out the described method and also to programming means which carry out the described steps when executed on a computer.

    REDUCTION OF HEART MOTION ARTIFACTS IN THORACIC CT IMAGING
    6.
    发明申请
    REDUCTION OF HEART MOTION ARTIFACTS IN THORACIC CT IMAGING 审中-公开
    胸部CT成像中心脏运动伪影的减少

    公开(公告)号：WO2008026141A3

    公开(公告)日：2008-12-04

    申请号：PCT/IB2007053403

    申请日：2007-08-27

    Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY ,  BARSCHDORF HANS ,  VON BERG JENS ,  KUHN MICHAEL H ,  LORENZ CRISTIAN ,  BLAFFERT THOMAS

    Inventor： BARSCHDORF HANS ,  VON BERG JENS ,  KUHN MICHAEL H ,  LORENZ CRISTIAN ,  BLAFFERT THOMAS

    IPC: G06T7/20 ,  G06T7/00 ,  G06T11/00

    CPC classification number: G06T7/251 ,  G06T7/149 ,  G06T7/33 ,  G06T2200/04 ,  G06T2207/10081 ,  G06T2207/30048 ,  G06T2207/30061 ,  G06T2211/412

    Abstract: 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.

    Abstract translation: 本发明涉及一种用于使多个模型网格适应多个图像数据的系统（100），所述系统包括配准单元（110），用于基于所述多个图像数据将所述多个模型网格注册到所述多个图像数据 计算用于变换所述多个模型网格的配准变换;以及适配单元（120），用于基于所述多个模型的网格顶点的位置的计算来适配所述多个配准模型网格至所述多个图像数据 网格。 所述系统（100）还可以包括用于计算稀疏矢量场的计算单元（130），所述稀疏矢量场包括所述自适应模型网格的顶点的位移矢量，用于基于所述稀疏矢量场计算密集矢量场的近似单元（140） ，用于借助所计算的密集矢量场合并图像数据组的融合单元（150）以及用于从所计算的密集矢量场中重建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摄影图像中的运动伪影。

    INTERACTIVE SELECTION OF A REGION OF INTEREST AND SEGMENTATION OF IMAGE DATA
    7.
    发明申请
    INTERACTIVE SELECTION OF A REGION OF INTEREST AND SEGMENTATION OF IMAGE DATA 审中-公开
    互动选择一个利益区域和分割图像数据

    公开(公告)号：WO2009101577A2

    公开(公告)日：2009-08-20

    申请号：PCT/IB2009050544

    申请日：2009-02-10

    Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY ,  OPFER ROLAND ,  WIEMKER RAFAEL ,  BLAFFERT THOMAS

    Inventor： OPFER ROLAND ,  WIEMKER RAFAEL ,  BLAFFERT THOMAS

    IPC: G06T7/00 ,  A61B5/00

    CPC classification number: G06T7/0012 ,  G06T7/12 ,  G06T2207/10072 ,  G06T2207/10132 ,  G06T2207/20012 ,  G06T2207/20101 ,  G06T2207/20104 ,  G06T2207/30004

    Abstract: The invention relates to a system (100) for interactive definition of a region of interest in an image data space, the system (100) comprising a point unit (110) for selecting a plurality of points for defining a boundary of the region of interest on the basis of user inputs and a boundary unit (120) for determining the boundary on the basis of the plurality of points, thereby defining the region of interest, wherein the boundary unit further comprises a domain unit (122) for determining a domain space for a parameterization of the boundary, a projection unit (124) for projecting each point of the plurality of points onto the domain space and an approximation unit (126) for computing a map for mapping the domain space into the image data space, wherein values of the map are points defining the boundary of the region of interest, such that the composition of said projection and said map satisfies a condition for defining the map. Only points necessary for defining the ROI need to be selected. For a simple-shape structure of interest, or for a structure of interest which is at a fair distance from other non- interesting structures, the number of points for defining a ROI comprising said structure of interest can be quite low. For a complex-shape structure of interest, a sufficient number of points can be selected to define a ROI that comprises said structure of interest but does not comprise, for example, a view-occluding structure. The intensities of voxels comprised in the structure of interest do not affect the definition of the ROI, because the ROI is defined on the basis of the selected plurality of points and is not affected by said intensities.

    Abstract translation: 本发明涉及一种用于在图像数据空间中交互定义感兴趣区域的系统（100），该系统（100）包括点单元（110），用于选择用于定义感兴趣区域的边界的多个点 基于用户输入和用于基于多个点确定边界的边界单元（120），从而定义感兴趣的区域，其中边界单元还包括用于确定域空间的域单元（122） 用于边界的参数化，用于将多个点中的每个点投影到域空间上的投影单元（124）和用于计算用于将域空间映射到图像数据空间中的映射的近似单元（126），其中值 的地图是定义感兴趣区域的边界的点，使得所述投影和所述地图的组成满足用于定义地图的条件。 只需要选择定义ROI的必要点。 对于感兴趣的简单形状结构，或者与其他非有趣结构相距很远的感兴趣的结构，用于定义包含所述感兴趣结构的ROI的点的数量可能相当低。 对于感兴趣的复杂形状结构，可以选择足够数量的点来定义包括所述感兴趣结构但不包括例如遮挡结构的ROI。 包含在感兴趣结构中的体素的强度不影响ROI的定义，因为ROI是基于所选择的多个点来定义的，并且不受所述强度的影响。

    VOLUME MEASUREMENTS IN 3D DATASETS
    8.
    发明申请
    VOLUME MEASUREMENTS IN 3D DATASETS 审中-公开
    3D数据中的体积测量

    公开(公告)号：WO2004088589A8

    公开(公告)日：2005-09-29

    申请号：PCT/IB2004050303

    申请日：2004-03-22

    Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV ,  WIEMKER RAFAEL ,  BLAFFERT THOMAS

    Inventor： WIEMKER RAFAEL ,  BLAFFERT THOMAS

    IPC: G06T5/00 ,  G06T7/60

    CPC classification number: G06T7/0012 ,  G06T7/11 ,  G06T7/155 ,  G06T7/62 ,  G06T2207/10072 ,  G06T2207/20041 ,  G06T2207/20156 ,  G06T2207/30064

    Abstract: Volume measurement of for example a tumor in a 3D image dataset is an important and often performed task. The problem is to segment the tumor out of this volume in order to measure its dimensions. This problem is complicated by the fact that the tumors are often connected to vessels and other organs. According to the present invention, an automated method and corresponding device and computer software are provided, which analyze a volume of interest around a singled out tumor, and which, by virtue of a 3D distance transform and a region drawing scheme advantageously allow to automatically segment a tumor out of a given volume.

    Abstract translation: 体积测量例如3D图像数据集中的肿瘤是一个重要且经常执行的任务。 问题是将肿瘤从该体积中分离出来以测量其尺寸。 这个问题由于肿瘤通常与血管和其他器官相连的事实而变得复杂。 根据本发明，提供一种自动化方法和相应的装置和计算机软件，其分析围绕单个肿瘤的感兴趣体积，并且通过3D距离变换和区域绘制方案有利地允许自动分段 一个给定体积的肿瘤。

    ANALYSIS OF PULMONARY CT DATA
    9.
    发明申请
    ANALYSIS OF PULMONARY CT DATA 审中-公开
    脉搏CT数据分析

    公开(公告)号：WO2004109580A3

    公开(公告)日：2005-03-24

    申请号：PCT/IB2004050805

    申请日：2004-05-28

    Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV ,  WIEMKER RAFAEL ,  BLAFFERT THOMAS ,  PEKAR VLADIMIR

    Inventor： WIEMKER RAFAEL ,  BLAFFERT THOMAS ,  PEKAR VLADIMIR

    IPC: G06T7/00 ,  G06F19/00

    CPC classification number: G06T7/0012

    Abstract: Ground glass opacities in the lung are non-solid nebular-like shadows in the parenchyma tissue of the lung, which may be precursors of a lung cancer. According to the present invention, ground glass opacities may automatically be determined on the basis of a texture analysis of the parenchyma. Advantageously, according to the present invention, a robust and reliable determination of ground glass opacities may be provided, even if vessels, lung walls, airspace or bronchi walls are present within the local neighborhood of the ground glass opacity.

    Abstract translation: 肺中的玻璃不透明度是肺实质组织中非固体的星状样阴影，可能是肺癌的前体。 根据本发明，可以根据实质的纹理分析自动确定研磨玻璃的不透明度。 有利地，根据本发明，即使在玻璃不透明度的局部邻域内存在容器，肺壁，空气或支气管壁，也可以提供坚实可靠的磨玻璃不透明度测定。

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