公开(公告)号：US20100293505A1

公开(公告)日：2010-11-18

申请号：US12376999

申请日：2007-08-07

申请人： Gundolf Kiefer ,  Helko Lehmann ,  Dieter Geller ,  Hauke Schramm ,  Jochen Peters ,  Olivier Ecabert ,  Juergen Weese

发明人： Gundolf Kiefer ,  Helko Lehmann ,  Dieter Geller ,  Hauke Schramm ,  Jochen Peters ,  Olivier Ecabert ,  Juergen Weese

IPC分类号： G06F3/048

CPC分类号： G16H40/63

摘要： The invention relates to a system (100) for obtaining information relating to segmented volumetric medical image data, the system comprising: a display unit (110) for displaying a view of the segmented volumetric medical image data on a display; an indication unit (115) for indicating a location on the displayed view; a trigger unit (120) for triggering an event; an identification unit (125) for identifying a segmented anatomical structure comprised in the segmented volumetric medical image data based on the indicated location on the displayed view in response to the triggered event; and an execution unit (130) for executing an action associated with the identified segmented anatomical structure, thereby obtaining information relating to the segmented volumetric medical image data. The action executed by the execution unit (130) may be displaying a name of the segmented anatomical structure, a short description of the segmented anatomical structure, or a hint on a potential malformation or malfunction of the segmented anatomical structure. Thus, the system (100) allows obtaining valuable information relating to the volumetric medical image data viewed by a physician on the display, thereby assisting the physician in medical diagnosing.

摘要翻译： 本发明涉及一种用于获取与分段体积医学图像数据相关的信息的系统（100），该系统包括：显示单元（110），用于在显示器上显示分割的体积医学图像数据的视图; 指示单元（115），用于指示所显示的视图上的位置; 触发单元（120），用于触发事件; 识别单元（125），用于响应于触发的事件，基于所显示的视图上的指示位置来识别包含在所述分段体积医学图像数据中的分段解剖结构; 以及执行单元（130），用于执行与所识别的分段解剖结构相关联的动作，从而获得与分割的体积医学图像数据相关的信息。 由执行单元（130）执行的动作可以显示分割的解剖结构的名称，分割的解剖结构的简短描述，或对分割的解剖结构的潜在畸形或故障的提示。 因此，系统（100）允许获得与医生在显示器上观看的体积医学图像数据相关的有价值的信息，从而辅助医师进行医学诊断。

公开(公告)号：US20100265252A1

公开(公告)日：2010-10-21

申请号：US12808398

申请日：2008-12-16

申请人： Helko Lehmann ,  Juergen Weese ,  Dieter Geller

发明人： Helko Lehmann ,  Juergen Weese ,  Dieter Geller

IPC分类号： G06T17/00

CPC分类号： G06T15/08

摘要： The invention relates to a system (100) for visualizing an image data set comprising a plurality of voxels, using a ray casting method, each voxel of the plurality of voxels belonging to at least one class, each class of the at least one class being associated with an intensity redistribution function for computing a redefined voxel value of a voxel from a measured voxel value of said voxel, the system comprising a sampling unit (120) for computing a sample value at a sample location on a projection ray cast from an image pixel, based on a redefined voxel value of at least one voxel proximal to the sample location on the projection ray, wherein the redefined voxel value of the at least one voxel is computed from a measured voxel value of the at least one voxel, using the intensity redistribution function associated with the at least one class of the at least one voxel.

摘要翻译： 本发明涉及一种用于使用射线投射方法来可视化包括多个体素的图像数据集的系统（100），所述多个体素的每个体素属于至少一个类，所述至少一个类的每个类别 与用于从所述体素的测量的体素值计算体素的重新定义的体素值的强度再分布函数相关联，所述体素包括用于计算从图像投射的投影光线上的样本位置处的样本值的采样单元（120） 基于近似于投影射线上的样本位置的至少一个体素的重新定义的体素值，其中根据所述至少一个体素的测量体素值计算所述至少一个体素的重新定义的体素值，其使用 强度再分配功能与至少一个类别的至少一个体素相关联。

公开(公告)号：US09754411B2

公开(公告)日：2017-09-05

申请号：US12676641

申请日：2008-09-11

申请人： Dieter Geller ,  Helko Lehmann

发明人： Dieter Geller ,  Helko Lehmann

IPC分类号： G06T15/08 ,  G06T19/00 ,  G06T11/00

CPC分类号： G06T19/00 ,  G06T11/003 ,  G06T15/08

摘要： The invention relates to a system (100) for visualizing an object of interest comprised in a volume of an image dataset, the system comprising a path unit (110) for specifying a path in the volume of the image dataset on the basis of the object of interest, a location unit (120) for determining a location on a projection ray through the volume of the image dataset on the basis of the specified path, and a value unit (130) for computing a projected gray value corresponding to the projection rayon the basis of the determined location on the projection ray. Because the locations on the projection ray are determined based on the specified path for indicating the object of interest, the actual computation of the projection gray values may be designed and constructed to show gray values describing the object of interest while hiding gray values describing other objects, in particular occluding objects. Thus, the system of the invention is arranged for visualizing the object of interest at different viewing angles without occluding the object of interest.

公开(公告)号：US20100309199A1

公开(公告)日：2010-12-09

申请号：US12676641

申请日：2008-09-11

申请人： Dieter Geller ,  Helko Lehmann

发明人： Dieter Geller ,  Helko Lehmann

IPC分类号： G06T15/00

CPC分类号： G06T19/00 ,  G06T11/003 ,  G06T15/08

摘要： The invention relates to a system (100) for visualizing an object of interest comprised in a volume of an image dataset, the system comprising a path unit (110) for specifying a path in the volume of the image dataset on the basis of the object of interest, a location unit (120) for determining a location on a projection ray through the volume of the image dataset on the basis of the specified path, and a value unit (130) for computing a projected gray value corresponding to the projection ray on the basis of the determined location on the projection ray. Because the locations on the projection ray are determined based on the specified path for indicating the object of interest, the actual computation of the projection gray values may be designed and constructed to show gray values describing the object of interest while hiding gray values describing other objects, in particular occluding objects. Thus, the system of the invention is arranged for visualizing the object of interest at different viewing angles without occluding the object of interest.

摘要翻译： 本发明涉及一种用于可视化包含在图像数据集的卷中的感兴趣对象的系统（100），该系统包括用于基于对象指定图像数据集的卷中的路径的路径单元（110） 用于基于指定路径确定通过图像数据集的体积的投影光线上的位置的位置单元（120），以及用于计算对应于投影光线的投影灰度值的值单元（130） 在投影光线上确定的位置的基础上。 由于投影光线上的位置是基于用于指示感兴趣对象的指定路径来确定的，所以投影灰度值的实际计算可以被设计和构造成显示描述感兴趣对象的灰度值，同时隐藏描述其他对象的灰度值 ，特别是闭塞物体。 因此，本发明的系统被安排用于在不遮挡感兴趣的对象的情况下以不同的视角来可视化感兴趣的对象。

公开(公告)号：US09953040B2

公开(公告)日：2018-04-24

申请号：US12671256

申请日：2008-07-25

申请人： Juergen Weese ,  Helko Lehmann ,  Yuechen Qian ,  Warner Rudolph Theophile Ten Kate

发明人： Juergen Weese ,  Helko Lehmann ,  Yuechen Qian ,  Warner Rudolph Theophile Ten Kate

IPC分类号： G06F17/30 ,  G06F19/00

CPC分类号： G06F17/30265 ,  G06F17/30268 ,  G06F19/00 ,  G06F19/321 ,  G16H30/20

摘要： A system for accessing a database of a plurality of image data sets includes an acquisition unit which acquires a query for searching the database for an image data set or an image data subset comprised in an image data set. The query includes at least one medically relevant term which defines a search criteria. A determining unit determines the image data set or the image data subset included in the image data set based on the strength of semantic matches between the at least one medically relevant term and (a) corresponding medical annotation(s) describing the image data set. A retrieving unit retrieves the determined image data set or image data subset from the database.

公开(公告)号：US09098899B2

公开(公告)日：2015-08-04

申请号：US13699351

申请日：2011-05-18

申请人： Irina Waechter-Stehle ,  Reinhard Kneser ,  Helko Lehmann ,  Jurgen Weese

发明人： Irina Waechter-Stehle ,  Reinhard Kneser ,  Helko Lehmann ,  Jurgen Weese

IPC分类号： G06K9/00 ,  G06T7/00 ,  A61B6/12 ,  A61B6/00 ,  A61B8/00 ,  A61B8/08 ,  A61B19/00 ,  A61F2/24 ,  A61F2/82

CPC分类号： G06T7/0012 ,  A61B6/12 ,  A61B6/5247 ,  A61B8/0833 ,  A61B8/0841 ,  A61B8/4416 ,  A61B90/37 ,  A61B90/39 ,  A61B2090/3762 ,  A61B2090/3764 ,  A61B2090/3925 ,  A61B2090/3954 ,  A61B2090/3966 ,  A61B2090/3995 ,  A61F2/2418 ,  A61F2/82 ,  A61F2250/0098 ,  G06T7/73 ,  G06T2207/10088 ,  G06T2207/10116 ,  G06T2207/10132 ,  G06T2207/30052 ,  G06T2207/30101 ,  G06T2207/30204

摘要： The present invention relates to the determination of the specific orientation of an object. In order to provide enhanced positioning information of an object to a user, a medical imaging system and a method for operating of a medical imaging system are proposed wherein 2D image data (14) of an object is acquired (12) with an imaging system, wherein the object is provided with at least three markers visible in the 2D image; and wherein (16) the markers are detected in the 2D image; and wherein the spatial positioning and rotation angle (20) of the object in relation to the system geometry is identified (18) on behalf of the markers; and wherein an object-indicator (24) is displayed (22) indicating the spatial positioning and rotation angle of the object.

摘要翻译： 本发明涉及确定物体的具体取向。 为了向用户提供对象的增强的定位信息，提出了用成像系统获取物体的2D图像数据（14）的医疗成像系统和医疗成像系统的操作方法， 其中所述对象被提供有在所述2D图像中可见的至少三个标记; 并且其中（16）在2D图像中检测标记; 并且其中所述物体相对于所述系统几何的空间定位和旋转角度（20）代表所述标记被识别（18）; 并且其中显示指示对象的空间定位和旋转角度的对象指示符（24）（22）。

公开(公告)号：US08995777B2

公开(公告)日：2015-03-31

申请号：US13990530

申请日：2011-11-24

申请人： Jochen Peters ,  Juergen Weese ,  Helko Lehmann

发明人： Jochen Peters ,  Juergen Weese ,  Helko Lehmann

IPC分类号： G06K9/62 ,  G06T7/00

CPC分类号： G06T7/0046 ,  G06T7/344 ,  G06T7/75 ,  G06T2207/10072 ,  G06T2207/20016 ,  G06T2207/30048

摘要： The invention relates to an image registration apparatus for registering a first image and a second image with respect to each other. A model, which has a fixed topology, is adapted to the first image for generating a first adapted model and to the second image for generating a second adapted model, and corresponding image elements (40, 48, 49; 50, 58, 9) are determined in the first image and in the second image based on spatial positions of first image elements in the first image with respect to the first adapted model and spatial positions of second image elements in the second image with respect to the second adapted model. Since the model has a fixed topology, corresponding image elements can relatively reliably be found based on the adapted models, even if the first and second images show objects having complex properties like a heart, thereby improving the registration quality.

摘要翻译： 本发明涉及一种用于相对于彼此登记第一图像和第二图像的图像配准装置。 具有固定拓扑的模型适于产生第一适应模型的第一图像和用于产生第二适应模型的第二图像，以及对应的图像元素（40,48,49; 50,58,9） 基于第一图像中的第一图像元素相对于第一适应模型的空间位置和第二图像中的第二图像元素相对于第二适应模型的空间位置，在第一图像和第二图像中确定。 由于该模型具有固定的拓扑结构，所以即使第一和第二图像显示具有如心脏等复杂属性的对象，因此可以相对可靠地找到相应的图像元素，从而提高注册质量。

公开(公告)号：US07742631B2

公开(公告)日：2010-06-22

申请号：US10598635

申请日：2005-03-03

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

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

IPC分类号： G06K9/00

CPC分类号： G06T15/503

摘要： High frequency signals cannot be reconstructed properly from sampled data if the sampling frequency lies below the Nyquist rate. The invention addresses this problem by choosing few additional sample points along a trajectory intersecting the region comprising the high frequency signals, such as an edge. Intermediate rendering data is used to determine the additional sample points. Therefore, according to an exemplary embodiment of the present invention, 4 adaptively chosen sample points per pixel may provide a visual quality comparable to 16 times super-sampling, but at a much lower computational cost.

摘要翻译： 如果采样频率低于奈奎斯特速率，则高频信号无法从采样数据中正确重建。 本发明通过沿着与包括高频信号的区域（例如边缘）相交的轨迹的几个附加采样点来解决这个问题。 中间渲染数据用于确定附加采样点。 因此，根据本发明的示例性实施例，每像素4个自适应选择的采样点可以提供与16次超采样相当的视觉质量，但是以低得多的计算成本。

公开(公告)号：US20070299639A1

公开(公告)日：2007-12-27

申请号：US11573795

申请日：2005-07-27

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

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

IPC分类号： G06F7/60

CPC分类号： G06T15/40 ,  G06T15/06

摘要： The present invention relates to direct volume rendering based on a light model applied to a 3D array of information data samples. Gradients are first estimated for the individuals samples, and a simple shading is done on the samples with low gradient, i.e. homogenous areas.

摘要翻译： 本发明涉及基于应用于信息数据样本的3D阵列的光模型的直接体绘制。 首先对个体样本估计渐变，并且对具有低梯度（即均匀区域）的样品进行简单的阴影。

公开(公告)号：US20070177005A1

公开(公告)日：2007-08-02

申请号：US10598635

申请日：2005-03-03

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

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

IPC分类号： H04N13/00

CPC分类号： G06T15/503

摘要： High frequency signals cannot be reconstructed properly from sampled data if the sampling frequency lies below the Nyquist rate. The invention addresses this problem by choosing few additional sample points along a trajectory intersecting the region comprising the high frequency signals, such as an edge. Intermediate rendering data is used to determine the additional sample points. Therefore, according to an exemplary embodiment of the present invention, 4 adaptively chosen sample points per pixel may provide a visual quality comparable to 16 times super-sampling, but at a much lower computational cost.

摘要翻译： 如果采样频率低于奈奎斯特速率，则高频信号无法从采样数据正确重建。 本发明通过沿着与包括高频信号的区域（例如边缘）相交的轨迹的几个附加采样点来解决这个问题。 中间渲染数据用于确定附加采样点。 因此，根据本发明的示例性实施例，每像素4个自适应选择的采样点可以提供与16次超采样相当的视觉质量，但是以低得多的计算成本。