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公开(公告)号：US09092902B2
公开(公告)日：2015-07-28
申请号：US11718011
申请日：2005-10-28
CPC分类号： G06T15/08 , G06T15/503
摘要： A method of visualization of a multi-dimensional dataset of data-elements involves a rendering process in which a display-value and an opacity value are assigned to individual data-elements. One or several control sets are defined comprising respective datavalues, display-values and opacity values related according to the transfer function and for individual control set(s) the opacity value is adjustable independently of the opacity values of other control set(s). The individually and independently adjustable control sets enable the user to adjust the transfer function in a very intuitive way.
摘要翻译： 数据元素的多维数据集的可视化方法涉及渲染过程，其中将显示值和不透明度值分配给各个数据元素。 定义一个或几个控制组，其包括根据传递函数相关的相应数据空间，显示值和不透明度值，并且对于各个控制组，不透明度值可独立于其它控制组的不透明度值而调节。 单独和独立可调节的控制组使用户能够以非常直观的方式调整传递功能。
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2.发明申请Method, system and computer program for stereoscopic viewing of 3d medical images 审中-公开三维医学图像立体观察的方法，系统和计算机程序公开(公告)号：US20050151730A1
公开(公告)日：2005-07-14
申请号：US10509644
申请日：2003-03-26
申请人： Steven Lobregt
发明人： Steven Lobregt
CPC分类号： G09B23/285 , A61B90/36 , G06T15/10 , H04N13/204 , H04N13/275 , H04N13/286 , H04N13/30 , H04N19/597 , H04N2013/0081
摘要： The invention concerns a method of visualising an internal hollow organ (3) of a subject based on a volumetric scan thereof. A number of three-dimensional images of the internal surface of the hollow organ are reconstructed. For each image an image (Li) is calculated for the left eye from a first view point li. Next an image for the right eye (Ri) is calculated from a second view point ri that differs from the first view point. The left eye image and the right eye image are combined into a pair (Li, Ri) to form a stereoscopic image that is shown using stereoscopic imager means. The invention also refers to a system and a computer program to carry out the method according to the invention.
摘要翻译： 本发明涉及一种基于其体积扫描来可视化对象的内部中空器官（3）的方法。 重建了空心器官内表面的多个三维图像。 对于每个图像，从第一视点li针对左眼计算图像（Li）。 接下来，从与第一视点不同的第二视点ri计算右眼（Ri）的图像。 左眼图像和右眼图像被组合成一对（Li，Ri）以形成使用立体成像器装置示出的立体图像。 本发明还涉及实现本发明方法的系统和计算机程序。
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3.发明申请Method for designing a template that removably fits to an objects surface 审中-公开用于设计可拆卸地适合于物体表面的模板的方法公开(公告)号：US20050002557A1
公开(公告)日：2005-01-06
申请号：US10492448
申请日：2002-10-11
CPC分类号： G06T17/00
摘要： The invention relates to a method for designing a template that removably fits to an object's surface, comprising the steps of: obtaining in a computer aided design system a digitized three-dimensional image of the object determining an approach direction for the template to be placed on the object manipulating the image for removal of undercuts related to the approach direction resulting in a modified image of the object defining the template depending on the shape of the modified image, in which the image is processed for visualization in a viewing direction that identifies with the approach direction, and that the so processed image is used as the modified image depending on which the template is designed.
摘要翻译： 本发明涉及一种用于设计可拆卸地适合于物体表面的模板的方法，包括以下步骤：在计算机辅助设计系统中获得所述对象的数字化三维图像，以确定要放置在所述模板上的接近方向 操作图像以去除与进场方向有关的底切，导致根据修改图像的形状定义模板的对象的修改图像，其中图像被处理以便在与 接近方向，并且将如此处理的图像用作经修改的图像，取决于设计模板。
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4.发明授权Method and computer tomography device for determining a tomographic image with elevated resolution 失效用于以升高的分辨率确定断层图像的方法和计算机断层摄影装置
公开(公告)号：US4555760A
公开(公告)日：1985-11-26
申请号：US491516
申请日：1983-05-04
CPC分类号： G06T11/006 , G06T2211/421 , Y10S378/901
摘要： A computer tomography device, in which the row of detectors has been rotated through the quarter of a detector angle (.DELTA..psi./4) with respect to the X-ray source. The invention filters selected parallel measurement values which were measured in a single direction instead of doing so with all the selected measurement values measured in parallel and antiparallel directions. The calculating time required for filtering is reduced by a factor of 2 and the values can be pipeline processed.
摘要翻译： 一种计算机断层摄影装置，其中检测器行已经相对于X射线源旋转了四分之一的检测器角度（DELTA psi / 4）。 本发明过滤所选择的并行测量值，该测量值是在单个方向上测量的，而不是以并行和反向平行方向测量的所有所选测量值进行测量。 滤波所需的计算时间减少了2倍，并且可以对流水线进行处理。
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5.发明授权公开(公告)号：US08478023B2
公开(公告)日：2013-07-02
申请号：US10488433
申请日：2002-09-03
申请人： Michael Kaus , Juergen Weese , Steven Lobregt
发明人： Michael Kaus , Juergen Weese , Steven Lobregt
IPC分类号： G06K9/00
CPC分类号： G06T19/00 , G06T7/12 , G06T7/149 , G06T7/60 , G06T2207/20081 , G06T2207/30008 , G06T2210/41
摘要： The invention relates to a method of measuring geometric variables of a three-dimensional structure contained in an object from at least on image representing the object, having the following steps:—use of a deformable first model describing the structure, the shape of which model can be described by parameters,—adjustment of the first model to the structure in the image,—determination of the parameters at which the first model exhibits optimum conformity with the structure,—use of a deformable second model describing the structure, which second model in shape corresponds to the first model, and which in addition contains at least one geometric variable,—modification of the second model according to the parameters determined, and—derivation of the geometric variable(s) from the modified second model.
摘要翻译： 本发明涉及一种从表示物体的至少一个图像上测量包含在物体中的三维结构的几何变量的方法，具有以下步骤： - 使用描述该结构的可变形的第一模型，其模型的形状 可以通过参数来描述， - 将第一模型调整到图像中的结构， - 确定第一模型与结构最佳一致的参数， - 使用描述结构的可变形第二模型，第二模型 形状对应于第一模型，并且还包括至少一个几何变量，根据确定的参数来修改第二模型，以及从修改的第二模型推导出几何变量。
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公开(公告)号：US20100266174A1
公开(公告)日：2010-10-21
申请号：US12746932
申请日：2008-12-05
IPC分类号： G06K9/00
CPC分类号： G06F19/321 , G06F19/00
摘要： The present invention discloses a method of retrieving a plurality of data slices from a medical image data set (5), the method comprising the steps of: a) displaying an indicator (10, 20) associated with the plurality of data slices; b) selecting the indicator (10, 20) based on a user input; and c) retrieving the plurality of data slices (1, 2) associated with the indicator when said indicator is selected; wherein the association between the indicator and the plurality of slices is based on segmentation of the medical image data set, the indicator representing an object obtained in the segmentation of the medical image data set, the plurality of data slices comprising the object data. The method of the invention reduces the amount of data transfer because it allows for retrieving only those data slices which comprise relevant data relating to the object of interest.
摘要翻译： 本发明公开了一种从医学图像数据集（5）检索多个数据片段的方法，所述方法包括以下步骤：a）显示与所述多个数据片段相关联的指示符（10,20）; b）基于用户输入选择指示符（10,20）; 以及c）当选择所述指示符时，检索与所述指示符相关联的所述多个数据片段（1,2） 其中所述指示符和所述多个切片之间的关联基于所述医学图像数据集的分割，所述指示符表示在所述医学图像数据集的分割中获得的对象，所述多个数据切片包括所述对象数据。 本发明的方法减少了数据传输量，因为它允许仅检索包括与感兴趣对象有关的相关数据的那些数据片。
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公开(公告)号：US20070053553A1
公开(公告)日：2007-03-08
申请号：US10539387
申请日：2003-12-03
申请人： Frans Gerritsen , Steven Lobregt
发明人： Frans Gerritsen , Steven Lobregt
IPC分类号： G06K9/00
CPC分类号： G06T15/08
摘要： A system for visualizing a 3D volume, in particular for medical applications, includes an input 1010 for receiving a three-dimensional set of data representing voxel values of the 3D volume. The data set is stored in a storage 1030. A processor projects the volume onto an imaginary 2D projection screen from a predetermined viewpoint. For each pixel of the 2D projection image a ray is cast through the pixel and through the volume. A protocol is used that, while traversing along ray positions within the volume, determines a rendering algorithm and/or rendering parameters in dependence on the ray position. For each ray position the determined rendering algorithm/parameters are used to calculate a contribution to a pixel value of the pixel based on at least one voxel value within a predetermined range of the ray position. An output 1040 is used for providing pixel values of a 2D image for rendering on a display.
摘要翻译： 用于可视化3D体积的系统，特别是用于医疗应用的系统包括用于接收表示3D体积的体素值的三维数据集合的输入端1010。 数据集存储在存储器1030中。 处理器从预定的角度将体积投影到假想的2D投影屏幕上。 对于2D投影图像的每个像素，光线通过像素投射并通过该体积。 使用协议，当沿着卷内的光线位置移动时，根据光线位置确定渲染算法和/或渲染参数。 对于每个射线位置，所确定的渲染算法/参数用于基于在射线位置的预定范围内的至少一个体素值来计算对像素的像素值的贡献。 输出1040用于提供用于在显示器上呈现的2D图像的像素值。
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公开(公告)号：US20060285771A1
公开(公告)日：2006-12-21
申请号：US10548965
申请日：2004-03-15
申请人： Steven Lobregt
发明人： Steven Lobregt
IPC分类号： G06K9/32
CPC分类号： G06T3/0068 , G06K9/52 , G06T7/30
摘要： A method for matching grayvalued first elements of a first data set with grayvalued second elements of a second data set so that a first distribution of the first elements optimally matches a second distribution of the second elements, said method being characterized by the following steps: mapping said first elements on said second elements and evaluating a local grayvalue distribution difference between any mapped first element and its associated second element; from said local grayvalue distribution difference deriving for each said first element a force vector of a force field, said force vector indicating a preferred motion size and direction; combining said separate force vectors into a single force and a single torque value acting on said first elements collectively, for iteratively moving said first elements collectively to an amended mapping that improves a match between said first and second distributions.
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公开(公告)号：US20060143215A1
公开(公告)日：2006-06-29
申请号：US10545655
申请日：2004-02-17
申请人： Roel Truyen , Iwo Serlie , Steven Lobregt
发明人： Roel Truyen , Iwo Serlie , Steven Lobregt
CPC分类号： G06T11/008
摘要： A method of constructing an object data set of data elements representing a physical property is described, in which the construction of the object data set includes assigning attributes to respective data elements. Such attributes are used, for example, in volume rendering. The construction of the object data set is achieved in such a way that the relative contributions of the physical property to the values of the respective data elements are derived on the basis of the relative contributions of the physical property to the data values of the data elements. These contributions are calculated by modeling transition changes in the image using a plot of grey value and gradient magnitude. Sampling of data points along the maximum gradient allows identification of the ranges of the physical property contributing to the selected voxel and calculation of the relative amounts.
摘要翻译： 描述了构成表示物理属性的数据元素的对象数据集的方法，其中对象数据集的构造包括将属性分配给各个数据元素。 例如，在体绘制中使用这样的属性。 以如下方式实现对象数据集的构造：使物理属性相对于相应数据元素的值的相对贡献基于物理属性对数据元素的数据值的相对贡献而导出 。 这些贡献通过使用灰度值和梯度大小的图来对图像中的转变变化进行建模来计算。 沿着最大梯度采样数据点允许识别对所选体素有贡献的物理属性的范围和相对量的计算。
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公开(公告)号：US20060008143A1
公开(公告)日：2006-01-12
申请号：US10531023
申请日：2003-09-12
申请人： Roel Truyen , Steven Lobregt , Frans Gerritsen
发明人： Roel Truyen , Steven Lobregt , Frans Gerritsen
CPC分类号： G06K9/6209 , G06T7/12 , G06T7/149 , G06T2207/10081 , G06T2207/20016 , G06T2207/30101
摘要： An apparatus 1000 includes an input 1010 for receiving an N-dimensional signal, N≧2. A storage 1030 stores a composite model of a composite structure for estimating parameters of the model with respect to the signal. The composite model is based on constituent models 210-290 that each correspond to a constituent structure in the signal and that are incorporated in the composite structure. Each constituent model is designated for estimating parameters of the constituent model with respect to the signal based on prior knowledge of the constituent structure. At least two of the constituent models are based on differing technologies. Each constituent model is provided with a uniform interface for controlling the constituent model and for retrieving parameters estimated by it. A processor 1020 is programmed to estimate the model parameters by controlling the constituent models to estimate their parameters; to retrieve estimated parameters from the constituent models; and to estimate parameters of the model in dependence on the retrieved parameters.
摘要翻译： 装置1000包括用于接收N维信号的输入端，N> = 2。 存储器1030存储用于估计关于信号的模型参数的复合结构的复合模型。 复合模型基于构成模型210-290，每个模型分别对应于信号中的组成结构并且并入复合结构中。 每个构成模型被指定用于基于构成结构的先验知识来估计关于信号的组成模型的参数。 至少两个组成模型是基于不同的技术。 每个构成模型都具有统一的界面，用于控制构成模型并检索由其估计的参数。 处理器1020被编程为通过控制成分模型来估计它们的参数来估计模型参数; 从成分模型中检索估计参数; 并根据检索到的参数来估计模型的参数。
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