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1.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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2.发明授权Computer tomography apparatus including a combined recursive and convolution filter 失效计算机断层摄影装置包括组合递归和卷积滤波器
公开(公告)号：US4761738A
公开(公告)日：1988-08-02
申请号：US884453
申请日：1986-07-11
CPC分类号： G06T11/005 , Y10S378/901
摘要： In a computer tomography apparatus in accordance with the invention the advantages of the convolution calculation are combined with the advantages of recursive filtering. The processing unit for the measurement data includes a convolution filter which has only 64 convolution factors and which performs the central part of a convolution calculation (the number of measurement data amounts to, for example 512 or 1024) and a parallel-operating recursive filter which approximates the rests of the convolution calculation situated outside the central part by recursive filtering of the measurement data. Using five different multiplication factors and a corresonding number of attenuation factors, ample accuracy is achieved. By variable of only the 64 convolution factors, a large number of different filters can be realized, without it being necessary to change the factors for recursive filtering.
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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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4.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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5.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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公开(公告)号：US09436798B2
公开(公告)日：2016-09-06
申请号：US12746932
申请日：2008-12-05
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：US08570323B2
公开(公告)日：2013-10-29
申请号：US10545655
申请日：2004-02-17
CPC分类号： G06T11/008
摘要： Disclosed is a method of constructing an object data set of data elements representing a physical property to be displayed, stored or written to a readable medium. The method includes, assigning, by the data elements, data values to respective positions in a multi-dimensional geometrical space, wherein the data values representing a physical property of an object; assigning attributes to respective data elements; deriving relative contributions of the physical property to the data values of the respective data elements; and assigning the attributes to the data elements on the basis of the relative contributions of the physical property to the data values of the data elements.
摘要翻译： 公开了一种构建表示要显示，存储或写入可读介质的物理属性的数据元素的对象数据集的方法。 该方法包括：通过数据元素将数据值分配给多维几何空间中的相应位置，其中表示对象的物理属性的数据值; 将属性分配给相应的数据元素; 导出物理属性对相应数据元素的数据值的相对贡献; 并且基于物理属性对数据元素的数据值的相对贡献，将属性分配给数据元素。
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公开(公告)号：US08050469B2
公开(公告)日：2011-11-01
申请号：US10521254
申请日：2003-07-11
申请人： Michael Kaus , Jürgen Weese , Steven Lobregt
发明人： Michael Kaus , Jürgen Weese , Steven Lobregt
IPC分类号： G06K9/00
CPC分类号： G06T7/60 , Y10S128/922
摘要： The present invention relates to the field of digital imaging, in particular to the field of estimating geometrical properties of an anatomical object. According to the present invention, geometrical properties are automatically measured and geometrical properties which have a definition based on sub-parts of the object are derived. To do this, additional geometrical information is integrated into a surface model. Geometrical properties are included into the surface model by identifying and labelling sub-parts of the surface model and fitting geometric primitives to these sub-parts. This advantageously allows to identify these sub-parts on an unseen object surface and to automatically extract relevant geometric properties.
摘要翻译： 本发明涉及数字成像领域，特别涉及估计解剖学对象的几何性质的领域。 根据本发明，自动地测量几何特性，并导出具有基于对象的子部分的定义的几何属性。 为此，额外的几何信息被集成到表面模型中。 通过识别和标记表面模型的子部分并将这些子部分拟合几何图元，将几何属性包含在表面模型中。 这有利地允许在未看见的物体表面上识别这些子部件并且自动提取相关的几何特性。
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公开(公告)号：US20090141018A1
公开(公告)日：2009-06-04
申请号：US11718011
申请日：2005-10-28
IPC分类号： G06T15/00
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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10.发明授权
公开(公告)号：US6097833A
公开(公告)日：2000-08-01
申请号：US926867
申请日：1997-09-10
CPC分类号： A61B6/5241 , A61B6/481 , A61B6/504 , H04N5/3205
摘要： Sub-images are merged in order to form an assembled image representing an elongate scene. In order to counteract artifacts in the assembled image such as disturbing transitions at the boundaries of adjacent sub-images in the image assembly method in accordance with the invention, pixel-values of overlapping portions of consecutive sub-images are interpolated so as to form pixel-values of the assembled image. The relative shift between consecutive sub-images with respect to the elongate scene is calculated from image information contained in the sub-images themselves. Correlations of pixel-values in overlapping portions of consecutive sub-images are determined as a function of the shift-value of the shift between consecutive sub-images with respect to the elongate scene. The actual shift between consecutive sub-images is found as the shift-value for which the correlation attains its maximum-value. The image assembly method in accordance with the invention is particularly suitable for use in peripheral x-ray angiography. Consecutive sub-images are made by x-irradiations of e.g. a patient's leg with an x-ray imaging system comprising an x-ray source, an x-ray detector, in various positions relative to the patient. In order to induce a sufficient amount of contrast in the sub-images to enable the determination of the relative shift between consecutive sub-images the invention proposes to image a contrasting object together with the elongate scene itself. Preferably the contrasting object has the form of a ruler with a binary pattern which may be incorporated in the patient table.
摘要翻译： 子图像被合并以形成表示细长场景的组合图像。 为了抵消组合图像中的伪像，例如根据本发明的图像组合方法中相邻子图像的边界处的干扰转变，连续子图像的重叠部分的像素值被内插以形成像素 组合图像的值。 根据包含在子图像本身中的图像信息计算相对于细长场景的连续子图像之间的相对偏移。 确定连续子图像的重叠部分中的像素值的相关关系作为相对于细长场景的连续子图像之间的偏移的移位值的函数。 发现连续子图像之间的实际位移是相关性达到其最大值的移位值。 根据本发明的图像组合方法特别适用于外周X射线血管造影术。 连续的子图像通过例如x射线的x射线进行。 具有X射线成像系统的患者腿部，其包括相对于患者处于不同位置的x射线源，x射线检测器。 为了在子图像中引起足够的对比度以使得能够确定连续子图像之间的相对偏移，本发明提出将对比物体与细长场景本身一起成像。 优选地，对比物体具有可以并入患者台中的具有二进制图案的标尺的形式。
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