公开(公告)号：DE602006005005D1

公开(公告)日：2009-03-12

申请号：DE602006005005

申请日：2006-08-23

Applicant: PHILIPS INTELLECTUAL PROPERTY

Inventor： KIEFER GUNDOLF ,  WEESE JUERGEN

IPC: G06T11/00 ,  G06T15/50

公开(公告)号：WO2005091227A8

公开(公告)日：2006-10-12

申请号：PCT/IB2005050791

申请日：2005-03-03

Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV ,  WEESE JUERGEN ,  BUSCH MARC ,  KIEFER GUNDOLF ,  LEHMANN HELKO

Inventor： WEESE JUERGEN ,  BUSCH MARC ,  KIEFER GUNDOLF ,  LEHMANN HELKO

IPC: G06T15/50

CPC classification number: G06T15/503

Abstract: 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.

Abstract translation: 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。

公开(公告)号：WO2007023459A2

公开(公告)日：2007-03-01

申请号：PCT/IB2006052911

申请日：2006-08-23

Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV ,  KIEFER GUNDOLF ,  WEESE JUERGEN

Inventor： KIEFER GUNDOLF ,  WEESE JUERGEN

IPC: G06T11/00 ,  G06T15/50

CPC classification number: G06T15/50

Abstract: 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.

Abstract translation: 描述了一种用于生成由包括多个数据点的体数据集表示的3-D对象的2-D图像的方法，每个数据点具有不透明度值。 多个假想射线投射通过3D目标，并且对于每条射线，射线路径被分成由路径上的数据点定义的多个基本抽样间隔。 如果确定横跨基本采样间隔的不透明度值中的差异可能变得大于预定值，则在基本采样间隔内生成连续较小的采样区域，直到确定跨每个所生成的较小的不透明度值的差异 基本区间中的采样间隔小于预定阈值。 指示沿着路径的采样间隔中的光线和3-D对象之间的相互作用的值使用直接体积渲染过程来累积以确定2-D图像中的像素值。

公开(公告)号：WO2008007344A3

公开(公告)日：2008-03-13

申请号：PCT/IB2007052770

申请日：2007-07-11

Applicant: KONINK PHILIPS ELECRONICS N V ,  PHILIPS INTELLECTUAL PROPERTY ,  SCHRAMM HAUKE ,  KIEFER GUNDOLF

Inventor： SCHRAMM HAUKE ,  KIEFER GUNDOLF

IPC: G06T11/00

CPC classification number: G06T15/10

Abstract: The invention relates to a system (100) for computing an image based on image data for displaying in a display, the image comprising a first image and a second image, the system comprising a first determination unit (110) for determining a first image data within the image data for computing the first image and for determining a second image data within the image data for computing the second image; a second determination unit (120) for determining a first transfer function for computing the first image and for determining a second transfer function for computing the second image; a third determination unit (130) for determining a viewing direction for computing the first image and for computing the second image; a fourth determination unit (140) for determining a first region of the display for displaying the first image and for determining a second region of the display for displaying the second image; and a computation unit (150) for computing the first image and the second image, thereby computing the image. The system (100) is thus capable of improving the quality of the displayed image by optimizing the first transfer function for computing the first image for displaying in the first display region and by optimizing the second transfer function for computing the second image for displaying in the second display region.

Abstract translation: 本发明涉及用于基于用于在显示器中显示的图像数据来计算图像的系统（100），所述图像包括第一图像和第二图像，所述系统包括第一确定单元（110），用于确定第一图像数据 在用于计算第一图像的图像数据内并且用于确定用于计算第二图像的图像数据内的第二图像数据; 第二确定单元（120），用于确定用于计算第一图像的第一传递函数并用于确定用于计算第二图像的第二传递函数; 第三确定单元（130），用于确定用于计算第一图像和用于计算第二图像的观看方向; 第四确定单元（140），用于确定用于显示第一图像的显示器的第一区域并用于确定用于显示第二图像的显示器的第二区域; 和计算单元（150），用于计算第一图像和第二图像，由此计算图像。 因此，系统（100）能够通过优化用于计算用于在第一显示区域中显示的第一图像的第一传递函数并且优化用于计算用于在第一显示区域中显示的第二图像的第二传递函数来改善显示图像的质量 第二显示区域。

公开(公告)号：WO2006067714A3

公开(公告)日：2006-08-31

申请号：PCT/IB2005054282

申请日：2005-12-16

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY ,  VISSER KEES ,  DE BLIEK HUBRECHT L T ,  WEESE JUERGEN ,  KIEFER GUNDOLF ,  BUSCH MARC ,  LEHMANN HELKO

Inventor： VISSER KEES ,  DE BLIEK HUBRECHT L T ,  WEESE JUERGEN ,  KIEFER GUNDOLF ,  BUSCH MARC ,  LEHMANN HELKO

IPC: G06T15/08

CPC classification number: G06T15/08 ,  G06T2210/62

Abstract: It is an object of the invention to provide a more convenient system 40 for visualizing a certain object from a range of viewing angles in a scene comprising a plurality of objects at multiple viewing angles with some of the objects being view-obscuring objects, capable of identifying the view-obscuring objects and adjusting their transparency for obtaining a better view of the certain object comprising the interesting anatomical features. To achieve this object, the invention provides a system comprising segmenting means 41 for segmenting a multidimensional image data set into the plurality of objects, first selecting means 42 for selecting the certain object from the plurality of objects, second selecting means 43 and 44 for selecting a viewing angle from the range of viewing angles, identifying means 45 for identifying a view-obscuring object that obscures the view of the certain object when the certain object is viewed from the viewing angle selected, and transparency adjustment means 45 for changing the transparency of the view-obscuring object identified.

Abstract translation: 本发明的一个目的是提供一种更方便的系统40，用于从包括多个视角的多个对象的场景中的视角范围可视化某个对象，其中一些对象是视图模糊对象，能够 识别视图模糊对象并调整其透明度以获得包含有趣解剖特征的特定对象的更好视图。 为了实现该目的，本发明提供了一种系统，包括用于将多维图像数据集分割成多个对象的分割装置41，用于从多个对象中选择某个对象的第一选择装置42，用于选择的第二选择装置43和44 从观察角度的视角来看，当从所选择的视角观察特定对象时，识别装置遮挡了特定物体的观看遮挡物体的识别装置45以及改变透明度的透明度 识别出视图模糊对象。

公开(公告)号：WO2008018014A3

公开(公告)日：2008-04-10

申请号：PCT/IB2007053101

申请日：2007-08-07

Applicant: KONINKL PHILIPS ELECTRONICS NV ,  PHILIPS INTELLECTUAL PROPERTY ,  KIEFER GUNDOLF ,  LEHMANN HELKO ,  GELLER DIETER ,  SCHRAMM HAUKE ,  PETERS JOCHEN ,  ECABERT OLIVIER ,  WEESE JUERGEN

Inventor： KIEFER GUNDOLF ,  LEHMANN HELKO ,  GELLER DIETER ,  SCHRAMM HAUKE ,  PETERS JOCHEN ,  ECABERT OLIVIER ,  WEESE JUERGEN

IPC: G06F19/00

CPC classification number: G16H40/63

Abstract: 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.

Abstract translation: 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：WO2005101277A8

公开(公告)日：2006-10-05

申请号：PCT/IB2005051186

申请日：2005-04-11

Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV ,  ECK KAI ,  GROTH ALEXANDRA ,  KIEFER GUNDOLF ,  LEHMANN HELKO ,  BREDNO JOERG ,  WEESE JUERGEN

Inventor： ECK KAI ,  GROTH ALEXANDRA ,  KIEFER GUNDOLF ,  LEHMANN HELKO ,  BREDNO JOERG ,  WEESE JUERGEN

IPC: A61B5/055 ,  A61B6/00 ,  A61B6/03 ,  A61B8/08 ,  A61B10/00 ,  A61B10/02 ,  A61B19/00 ,  G06F19/00

CPC classification number: G06F19/321 ,  A61B5/055 ,  A61B6/03 ,  A61B6/541 ,  A61B8/0833 ,  A61B8/0841 ,  A61B8/463 ,  A61B8/466 ,  A61B10/0233 ,  A61B90/36 ,  G16H50/50

Abstract: In real-time three-dimensional imaging the choice of the visualization method and orientation is crucial for intervention success. The key question is what to ignore and what to show in real-time applications, where user control is not appropriate. The invention addresses this problem by visualizing an intervention (caused by a user) to an object of interest without the requirement of an interactive input by the user. Advantageously, according to an exemplary embodiment of the present invention, parameters for a visualization procedure are automatically chosen during data acquisition which may allow for an efficient tracking of the actual orientation and relative position of the structure with respect to the object of interest.

Abstract translation: 在实时三维成像中，可视化方法和方向的选择对于干预成功至关重要。 关键的问题是什么要忽略，什么显示在实时应用程序，用户控制不合适。 本发明通过将干预（由用户引起）视觉化为感兴趣的对象而不需要用户的交互式输入来解决该问题。 有利地，根据本发明的示例性实施例，在数据获取期间自动选择用于可视化过程的参数，这可以有效地跟踪结构相对于感兴趣对象的实际取向和相对位置。

公开(公告)号：WO2007057855A3

公开(公告)日：2007-10-11

申请号：PCT/IB2006054297

申请日：2006-11-16

Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV ,  WEIBRECHT MARTIN ,  ECABERT OLIVIER ,  WEESE JUERGEN ,  KIEFER GUNDOLF

Inventor： WEIBRECHT MARTIN ,  ECABERT OLIVIER ,  WEESE JUERGEN ,  KIEFER GUNDOLF

IPC: G06T3/40 ,  G06T15/10

CPC classification number: G06T15/10

Abstract: A method allowing display of time-varying merged high resolution and low resolution image data with a smooth frame rate. In one embodiment the high resolution data is structural image data and the low resolution image data is functional image data. The functional image data is gathered (20) into groups and each group is rendered and merged (24) together. The merged images produced are then stored (28) in a First In First Out (FIFO) buffer for display. While the merged images are displayed the next set of functional image data is merged and rendered and supplied to the FIFO buffer, allowing a smooth frame rate to be achieved. A computer program and a medical imaging apparatus using the method are also disclosed.

Abstract translation: 允许以平滑的帧速率显示时变合并的高分辨率和低分辨率图像数据的方法。 在一个实施例中，高分辨率数据是结构图像数据，低分辨率图像数据是功能图像数据。 将功能图像数据（20）收集到组中，并且将每个组渲染并合并（24）在一起。 然后将所生成的合并图像（28）存储在先进先出（FIFO）缓冲器中用于显示。 当显示合并的图像时，下一组功能图像数据被合并并呈现并提供给FIFO缓冲器，从而允许实现平滑的帧速率。 还公开了一种使用该方法的计算机程序和医学成像设备。

公开(公告)号：WO2006016303B1

公开(公告)日：2006-10-19

申请号：PCT/IB2005052495

申请日：2005-07-25

Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV ,  WEESE JUERGEN ,  KIEFER GUNDOLF ,  BUSCH MARC

Inventor： WEESE JUERGEN ,  KIEFER GUNDOLF ,  BUSCH MARC

IPC: G06T1/60

CPC classification number: G06T1/60

Abstract: The present invention relates to a way of storing 3D images. The 3D image is composed of a stack of two-dimensional video data subsets represented by arrays of pixel data. Each array of pixel data is partitioned into a plurality of overlapping and adjacent vertical stripes of pixel data having a width at most equal to a cacheline of the memory. The upper most left stripe is stored first and each stripe is stored after the left adjacent stripe. When storing each stripe having multiple rows of pixel data, the upper row is stored first and the first pixel data of each subsequent row of the stripe is stored in a memory location coming after a memory location where the last pixel data of the preceding row in the stripe is stored.

Abstract translation: 本发明涉及一种存储3D图像的方式。 3D图像由像素数据阵列表示的一堆二维视频数据子集构成。 像素数据的每个阵列被分割成宽度至多等于存储器的缓存线的多个像素数据的重叠且相邻的垂直条带。 最左边的条纹首先被存储并且每个条纹被存储在左边的相邻条纹之后。 当存储具有多行像素数据的每个条带时，首先存储上面的行，并将条带的每个后续行的第一像素数据存储在存储器位置中，存储器位置位于存储器位置之后，其中前一行的最后一个像素数据在 条纹被存储。

公开(公告)号：WO2006016303A3

公开(公告)日：2006-08-17

申请号：PCT/IB2005052495

申请日：2005-07-25

Applicant: PHILIPS INTELLECTUAL PROPERTY ,  KONINKL PHILIPS ELECTRONICS NV ,  WEESE JUERGEN ,  KIEFER GUNDOLF ,  BUSCH MARC

Inventor： WEESE JUERGEN ,  KIEFER GUNDOLF ,  BUSCH MARC

IPC: G06T1/60

CPC classification number: G06T1/60

Abstract: The present invention relates to a way of storing 3D images. The 3D image is composed of a stack of two-dimensional video data subsets represented by arrays of pixel data. Each array of pixel data is partitioned into a plurality of overlapping and adjacent vertical stripes of pixel data having a width at most equal to a cacheline of the memory. The upper most left stripe is stored first and each stripe is stored after the left adjacent stripe. When storing each stripe having multiple rows of pixel data, the upper row is stored first and the first pixel data of each subsequent row of the stripe is stored in a memory location coming after a memory location where the last pixel data of the preceding row in the stripe is stored.

Abstract translation: 本发明涉及一种存储3D图像的方法。 3D图像由由像素数据阵列表示的二维视频数据子集的堆叠组成。 像素数据的每个阵列被划分为具有最多等于存储器的高速缓存行的宽度的像素数据的多个重叠和相邻垂直条带。 首先存储最左边的条带，并且每个条带存储在左邻近条带之后。 当存储具有多行像素数据的每个条带时，首先存储上一行，并且条带的每个后续行的第一像素数据被存储在存储器位置之后的存储器位置中，其中前一行的最后一个像素数据在 条带被存储。