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    1.
    发明专利
    未知

    公开(公告)号：DE60318737T2

    公开(公告)日：2009-01-15

    申请号：DE60318737

    申请日：2003-11-13

    Applicant: PHILIPS INTELLECTUAL PROPERTY

    Inventor： WEESE JUERGEN ,  HEMPEL DANIEL ,  PEKAR VLADIMIR

    IPC: G06T17/00 ,  G06T15/08

    Abstract: The invention relates to a method and to an apparatus for visualizing a sequence of volume images of a moving object. Methods and apparatus of this kind are used in cases where a sequence of three-dimensional volume images is to be rendered as a two-dimensional image, for example, for a viewer. The invention utilizes the fact that usually only the volume values of a part of the voxels are relevant for the derivation of a two-dimensional image from a volume image. In the case of a sequence of volume images of a moving object, the derivations of the two dimensional images can be accelerated by storing the voxels which are relevant for the visualization during the visualization of a first volume image and by deriving the relevant two-dimensional image during the visualization of a second volume image exclusively from the volume values of the stored voxels and from voxels neighboring such stored voxels. The selection of volume values of neighboring voxels for use is dependent on the motion of the object. The voxels of the second volume image which are relevant for the visualization are stored again and used accordingly for the visualization of a third volume image. These steps are repeated accordingly for further volume images of the sequence.

    2.
    发明专利
    未知

    公开(公告)号：DE60318737D1

    公开(公告)日：2008-03-06

    申请号：DE60318737

    申请日：2003-11-13

    Applicant: PHILIPS INTELLECTUAL PROPERTY

    Inventor： WEESE JUERGEN ,  HEMPEL DANIEL ,  PEKAR VLADIMIR

    IPC: G06T17/00 ,  G06T15/08

    Abstract: The invention relates to a method and to an apparatus for visualizing a sequence of volume images of a moving object. Methods and apparatus of this kind are used in cases where a sequence of three-dimensional volume images is to be rendered as a two-dimensional image, for example, for a viewer. The invention utilizes the fact that usually only the volume values of a part of the voxels are relevant for the derivation of a two-dimensional image from a volume image. In the case of a sequence of volume images of a moving object, the derivations of the two dimensional images can be accelerated by storing the voxels which are relevant for the visualization during the visualization of a first volume image and by deriving the relevant two-dimensional image during the visualization of a second volume image exclusively from the volume values of the stored voxels and from voxels neighboring such stored voxels. The selection of volume values of neighboring voxels for use is dependent on the motion of the object. The voxels of the second volume image which are relevant for the visualization are stored again and used accordingly for the visualization of a third volume image. These steps are repeated accordingly for further volume images of the sequence.

    3.
    发明专利
    未知

    公开(公告)号：DE60320453D1

    公开(公告)日：2008-05-29

    申请号：DE60320453

    申请日：2003-12-05

    Applicant: PHILIPS INTELLECTUAL PROPERTY

    Inventor： KAUS MICHAEL ,  TIMINGER HOLGER ,  PEKAR VLADIMIR

    IPC: G06T5/00

    Abstract: The invention relates to a method of segmenting a three-dimensional structure from a three-dimensional, and in particular medical, data set while making allowance for user corrections. The method is performed with the help of a deformable three-dimensional model whose surface is formed by a network of nodes and mashes that connect these nodes. Once the model has been positioned at the point in the three-dimensional data set at which the structure to be segmented is situated and positions of nodes have, if necessary, been changed by known methods of segmentation, any desired nodes can be displaced manually. The nodes of the model are re-calculated by making weighted allowance for the nodes that have been displaced manually.

    5.
    发明专利
    未知

    公开(公告)号：DE60320453T2

    公开(公告)日：2009-05-07

    申请号：DE60320453

    申请日：2003-12-05

    Applicant: PHILIPS INTELLECTUAL PROPERTY

    Inventor： KAUS MICHAEL ,  TIMINGER HOLGER ,  PEKAR VLADIMIR

    IPC: G06T5/00

    Abstract: The invention relates to a method of segmenting a three-dimensional structure from a three-dimensional, and in particular medical, data set while making allowance for user corrections. The method is performed with the help of a deformable three-dimensional model whose surface is formed by a network of nodes and mashes that connect these nodes. Once the model has been positioned at the point in the three-dimensional data set at which the structure to be segmented is situated and positions of nodes have, if necessary, been changed by known methods of segmentation, any desired nodes can be displaced manually. The nodes of the model are re-calculated by making weighted allowance for the nodes that have been displaced manually.

    ANATOMICALLY CONSTRAINED IMAGE REGISTRATION
    7.
    发明申请
    ANATOMICALLY CONSTRAINED IMAGE REGISTRATION 审中-公开
    解剖学图像配准

    公开(公告)号：WO2009019630A3

    公开(公告)日：2009-08-13

    申请号：PCT/IB2008053042

    申请日：2008-07-29

    Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY ,  PEKAR VLADIMIR ,  BYSTROV DANIEL

    Inventor： PEKAR VLADIMIR ,  BYSTROV DANIEL

    IPC: G06T7/00

    CPC classification number: G06K9/3216 ,  A61B6/503 ,  A61B6/504 ,  G06K2209/05 ,  G06T7/32 ,  G06T7/33 ,  G06T7/337 ,  G06T2207/10072 ,  G06T2207/20128 ,  G06T2207/30012

    Abstract: The invention relates to a system (100) for registering an atlas image from an atlas of multidimensional images with an objective image, the system comprising a generation unit (105) for generating a candidate transformation for transforming a first region of the atlas image, a transformation unit (110) for transforming the first region of the atlas image using the candidate transformation, a similarity unit (120) for computing a measure of similarity of the transformed first region of the atlas image and a corresponding first region of the objective image, an evaluation unit (130) for evaluating the candidate transformation using a criterion based on the computed measure of similarity and determining an optimal transformation based on the evaluation of the candidate transformation, an extension unit (140) for extending the optimal transformation of the first region of the atlas image to a second region of the atlas image, wherein the second region comprises the first region, thereby creating a registration transformation and a registration unit (150) for transforming the second region using the registration transformation, thereby registering the atlas image with the objective image. Advantageously, the system (100) does not require setting landmark positions in the objective image. A further advantage of the system (100) is that since the similarity measure is computed locally, i.e., based on the first region of the atlas image, the registration is fast and thus attractive for clinical use.

    Abstract translation: 本发明涉及一种用于将来自多维图像图集的阿特拉斯图像与目标图像配准的系统（100），所述系统包括：生成单元（105），用于生成用于变换所述图谱图像的第一区域的候选变换; 变换单元（110），用于使用所述候选变换来变换所述图谱图像的第一区域;相似度单元（120），其用于计算所述图谱图像的变换后的第一区域和所述目标图像的对应第一区域的相似性度量; 评估单元（130），用于使用基于所计算的相似性度量的准则评估所述候选变换并且基于所述候选变换的所述评估来确定最优变换;扩展单元（140），用于扩展所述第一区域的最优变换 将所述图谱图像的所述第二区域与所述图谱图像的第二区域相比较，其中所述第二区域包括所述第一区域，由此c 重新配准注册变换和配准单元（150），以使用配准变换来变换第二区域，由此将图谱图像与目标图像配准。 有利地，系统（100）不需要在目标图像中设置地标位置。 系统（100）的另一个优点是由于相似性度量是局部计算的，即基于图谱图像的第一区域，所以配准速度快，因此对于临床使用具有吸引力。

    A METHOD, AN APPARATUS AND A COMPUTER PROGRAM FOR DATA PROCESSING
    8.
    发明申请
    A METHOD, AN APPARATUS AND A COMPUTER PROGRAM FOR DATA PROCESSING 审中-公开
    一种用于数据处理的方法，装置和计算机程序

    公开(公告)号：WO2008065598A3

    公开(公告)日：2009-05-14

    申请号：PCT/IB2007054788

    申请日：2007-11-26

    Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY ,  YOUNG STEWART ,  BYSTROV DANIEL ,  NETSCH THOMAS ,  KAUS MICHAEL ,  PEKAR VLADIMIR

    Inventor： YOUNG STEWART ,  BYSTROV DANIEL ,  NETSCH THOMAS ,  KAUS MICHAEL ,  PEKAR VLADIMIR

    IPC: G06T7/60

    CPC classification number: G06T7/149 ,  G06T7/12 ,  G06T7/70 ,  G06T2207/30016

    Abstract: The invention relates to a method for data processing. At stage 3 the position of the reference object in the reference image and its relation to a set of reference landmarks in the reference image is established at step 6. In order to enable this, the reference imaging of learning examples may be performed at step 2 and each reference image may be analyzed at step 4, the results may be stored in a suitably arranged database. In order to process the image under consideration, the image is accessed at step 11, the suitable landmark corresponding to the reference landmark in the reference image is identified at step 13 and the spatial relationship established at step 6 is applied to the landmark thereby providing the initial position of the object in the actual image. In case when for the object an imaging volume is selected, the method 1 according to the invention follows to step 7, whereby the scanning 17 is performed within the boundaries given by the thus established scanning volume. In case when for the object a model representative of the target is selected, the method 1 follows to the image segmentation step 19, whereby a suitable segmentation is performed. In case when for the model a deformable model is selected, the segmentation is performed by deforming the model thereby providing spatial boundaries of the target area. The invention further relates to an apparatus and a computer program for image processing.

    Abstract translation: 本发明涉及一种数据处理方法。 在阶段3，在步骤6中建立参考图像中的参考对象的位置及其与参考图像中的一组参考标记的关系。为了实现这一点，可以在步骤2执行学习示例的参考成像 并且可以在步骤4分析每个参考图像，结果可以存储在适当布置的数据库中。 为了处理所考虑的图像，在步骤11访问图像，在步骤13识别与参考图像中的参考标记相对应的合适地标，并将在步骤6建立的空间关系应用于地标，从而提供 物体在实际图像中的初始位置。 在对于物体选择成像体积的情况下，根据本发明的方法1遵循步骤7，由此在由这样建立的扫描体积给出的边界内执行扫描17。 在针对对象的情况下，选择了表示目标的模型，则对图像分割步骤19进行方法1，由此执行适当的分割。 在为模型选择可变形模型的情况下，通过使模型变形从而提供目标区域的空间边界来执行分割。 本发明还涉及一种用于图像处理的装置和计算机程序。

    COMPENSATING IN-PLANE AND OFF-PLANE MOTION IN MEDICAL IMAGES
    9.
    发明申请
    COMPENSATING IN-PLANE AND OFF-PLANE MOTION IN MEDICAL IMAGES 审中-公开
    在医学图像中补充平面和非平面运动

    公开(公告)号：WO2007031954A3

    公开(公告)日：2009-05-07

    申请号：PCT/IB2006053278

    申请日：2006-09-14

    Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV ,  BYSTROV DANIEL ,  PEKAR VLADIMIR

    Inventor： BYSTROV DANIEL ,  PEKAR VLADIMIR

    IPC: G06T7/00

    CPC classification number: G06T7/38 ,  G06T7/33

    Abstract: The invention relates to a registration method (100) of registering a second image dataset with a first image dataset on the basis of a set of landmarks, said registration method (100) comprising a weight-assigning step (125) for assigning a weight to each coordinate of each landmark from the set of landmarks and a registering step (145) for registering the second image dataset with the first image dataset on the basis of the weight assigned to the each coordinate. Choosing an appropriate set of landmarks and assigning an appropriate weight to each coordinate of each landmark from the set of landmarks can be used for optimizing selected displacements of a designated anatomical structure comprising elastic bodies and/or a plurality of independent rigid bodies in a sequence of image datasets. This enables rendering a sequence of views wherein the designated anatomical structure is not displaced off a viewing plane and/or a selected part of the designated anatomical structure is not displaced in a viewing plane.

    Abstract translation: 本发明涉及一种基于一组地标登记第一图像数据集的第二图像数据集的登记方法（100），所述登记方法（100）包括权重分配步骤（125），用于将权重分配给 基于所述一组地标的每个地标的每个坐标和用于根据分配给每个坐标的权重将第二图像数据集与第一图像数据集进行登记的登记步骤（145）。 可以使用合适的地标集合并从该地标集合为每个地标的每个坐标分配适当的权重，以优化包括弹性体和/或多个独立刚体的指定解剖结构的选定位移 图像数据集。 这使得能够呈现一系列视图，其中指定的解剖结构不会离开观察平面，和/或指定的解剖结构的选定部分不会在观察平面中移位。

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