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公开(公告)号：US08040352B2
公开(公告)日：2011-10-18
申请号：US10559050
申请日：2004-05-26
申请人： Marc Busch , Gundolf Kiefer , Jürgen Weese
发明人： Marc Busch , Gundolf Kiefer , Jürgen Weese
CPC分类号： G06T15/08
摘要： Sampling frequency of a ray casting for generating a projection image is varied in dependence of information derived from a 3D volume data during rendering. Furthermore, an interpolation is performed for skipped pixels for which no ray casting was performed in the projection image, based on this information.
摘要翻译： 用于产生投影图像的射线投射的采样频率根据在渲染期间从3D体积数据导出的信息而变化。 此外，基于该信息，对投影图像中不进行射线投射的跳过像素进行内插。
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公开(公告)号：US20080094406A1
公开(公告)日：2008-04-24
申请号：US11573369
申请日：2005-07-25
申请人： Juergen Weese , Gundolf Kiefer , Marc Busch
发明人： Juergen Weese , Gundolf Kiefer , Marc Busch
IPC分类号： G06T1/60
CPC分类号： G06T1/60
摘要： 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.
摘要翻译： 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成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边相邻条带之后。 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。
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公开(公告)号：US20070183649A1
公开(公告)日：2007-08-09
申请号：US10598745
申请日：2005-03-07
申请人： Gundolf Kiefer , Helko Lehmann , Jurgen Weese , Marc Busch
发明人： Gundolf Kiefer , Helko Lehmann , Jurgen Weese , Marc Busch
IPC分类号： G06K9/00
CPC分类号： G06T15/08 , G06T15/005
摘要： Medical imaging modalities generate increasingly more and very large three-dimensional data sets. According to an exemplary embodiment of the present invention, a three-dimensional data set of an object of interest is interactively visualized with a varying sampling rate in an image. Advantageously, a focus area may be moved by a user interactively during rendering, wherein the sampling rate of a particular part of the image is defined by its relative position to the focus area. Advantageously, this may allow for an improvement of an overall rendering performance.
摘要翻译： 医学成像模式产生越来越多和非常大的三维数据集。 根据本发明的示例性实施例，感兴趣对象的三维数据集在图像中以变化的采样率被交互地可视化。 有利地，焦点区域可以在渲染期间由用户交互地移动，其中图像的特定部分的采样率由其与焦点区域的相对位置来定义。 有利地，这可以允许改进整体渲染性能。
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公开(公告)号：US07817829B2
公开(公告)日：2010-10-19
申请号：US10598745
申请日：2005-03-07
申请人： Gundolf Kiefer , Helko Lehmann , Jurgen Weese , Marc Busch
发明人： Gundolf Kiefer , Helko Lehmann , Jurgen Weese , Marc Busch
CPC分类号： G06T15/08 , G06T15/005
摘要： Medical imaging modalities generate increasingly more and very large three-dimensional data sets. According to an exemplary embodiment of the present invention, a three-dimensional data set of an object of interest is interactively visualized with a varying sampling rate in an image. Advantageously, a focus area may be moved by a user interactively during rendering, wherein the sampling rate of a particular part of the image is defined by its relative position to the focus area. Advantageously, this may allow for an improvement of an overall rendering performance.
摘要翻译： 医学成像模式产生越来越多和非常大的三维数据集。 根据本发明的示例性实施例，感兴趣对象的三维数据集在图像中以变化的采样率被交互地可视化。 有利地，焦点区域可以在渲染期间由用户交互地移动，其中图像的特定部分的采样率由其与焦点区域的相对位置来定义。 有利地，这可以允许改进整体渲染性能。
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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。
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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
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。
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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。
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公开(公告)号：US20060139361A1
公开(公告)日：2006-06-29
申请号：US10559050
申请日：2004-05-26
申请人： Marc Busch , Gundolf Kiefer , Jurgen Weese
发明人： Marc Busch , Gundolf Kiefer , Jurgen Weese
IPC分类号： G09G5/00
CPC分类号： G06T15/08
摘要： Because of the increasing size of digital images available, an interactive rendering speed at a high display quality continues to be a challenging task. According to the present invention, a sampling frequency of a ray casting for generating the projection image is varied in dependence of information derived from the 3D volume data during rendering. Furthermore, an interpolation is performed for skipped pixels for which no ray casting was performed in the projection image, based on-this information. Advantageously, the present invention allows for an improved image quality, while reducing a computation time required to generate an output image.
摘要翻译： 由于可用的数字图像的尺寸越来越大，高显示质量的交互式渲染速度仍然是一项具有挑战性的任务。 根据本发明，用于生成投影图像的射线投射的采样频率根据在渲染期间从3D数据量数据导出的信息而变化。 此外，基于该信息，对投影图像中不进行射线投射的跳过像素执行内插。 有利地，本发明允许改善图像质量，同时减少生成输出图像所需的计算时间。
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公开(公告)号：US20100054412A1
公开(公告)日：2010-03-04
申请号：US12525825
申请日：2008-01-25
申请人： Ralph Brinks , Carsten Meyer , Alexander Fischer , Daniel Gagnon , Marc Busch
发明人： Ralph Brinks , Carsten Meyer , Alexander Fischer , Daniel Gagnon , Marc Busch
CPC分类号： A61B6/032 , A61B5/055 , A61B5/721 , A61B5/7289 , A61B6/037 , A61B6/527 , A61N5/103 , A61N5/1037 , A61N5/1067 , A61N2005/1052
摘要： An apparatus includes a scanner (102, 104) and a scanning motion monitor (100). A motion modeler (116) uses data from the scanning motion monitor (100) and the scanner (102, 104) to generate a motion model which describes motion of a region of interest of an object. A treatment planner (112) uses image data from the scanner (102, 104) to establish a treatment plan for the object. A treatment device 114, which operates in conjunction with a treatment motion monitor (108), uses the motion model to compensate for motion of the object during application of the treatment.
摘要翻译： 一种装置包括扫描仪（102,104）和扫描运动监视器（100）。 运动建模器（116）使用来自扫描运动监视器（100）和扫描器（102,104）的数据来生成描述对象感兴趣区域的运动的运动模型。 治疗计划器（112）使用来自扫描器（102,104）的图像数据来建立对象的治疗计划。 与治疗运动监视器（108）一起操作的治疗装置114使用运动模型来补偿在施用治疗期间物体的运动。
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公开(公告)号：US20090273610A1
公开(公告)日：2009-11-05
申请号：US11913338
申请日：2006-04-19
申请人： Marc Busch , Ralph Brinks
发明人： Marc Busch , Ralph Brinks
CPC分类号： G06T7/0012 , G06T5/003 , G06T2207/10104 , G06T2207/30004
摘要： A system and method for quantifying a region of interest in a medical image and in particular, a PET image. The system and method allow the clinician to make real time quantitative analysis of a region of interest. The system and method can be used to quantify small lesions within a region of interest by generating a set of virtual lesions for comparison with the actual lesion. Quantitative information, such as lesion size and tracer activity, or SUV, can be obtained to assist the clinician or physician in the diagnosis and treatment of the lesion.
摘要翻译： 一种用于量化医学图像中的感兴趣区域，特别是PET图像的系统和方法。 该系统和方法允许临床医生对感兴趣的区域进行实时定量分析。 该系统和方法可用于通过产生一组虚拟病变以与实际病变进行比较来量化感兴趣区域内的小损伤。 可以获得诸如损伤大小和示踪剂活性的定量信息或SUV以帮助临床医师或医师诊断和治疗病变。
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