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1. 发明授权

US07852335B2 Volume rendering processing distribution in a graphics processing unit 有权
公开(公告)号：US07852335B2
公开(公告)日：2010-12-14
申请号：US11903322
申请日：2007-09-20
申请人： Stefan Brabec , Thilaka S. Sumanaweera
发明人： Stefan Brabec , Thilaka S. Sumanaweera
IPC分类号： G06T17/20
CPC分类号： G06T19/00 , G06T15/08 , G06T2219/008
摘要： An intersection of a cut plane with a proxy geometry representing a scan volume is determined with a processor. The intersection is simplified, such as identifying a quadrilateral or triangle most closely enclosing the intersection. The vertex processor of a GPU deforms a reference grid and determines Cartesian coordinates and the texture coordinates for grid points of the reference grid as a function of the input intersection. The vertex processor provides coordinates for data for subsets of cut planes. The fragment processor inputs the texture coordinates and retrieves the data from the texture memory. The data is blended. The blended subsets are then blended together in the frame buffer of the GPU.

2. 发明授权

US08018454B2 Volume rendering processing distribution in a graphics processing unit 有权
标题翻译：图形处理单元中的体绘制处理分布
公开(公告)号：US08018454B2
公开(公告)日：2011-09-13
申请号：US11903356
申请日：2007-09-20
申请人： Stefan Brabec , Thilaka S. Sumanaweera
发明人： Stefan Brabec , Thilaka S. Sumanaweera
IPC分类号： G06T15/00
CPC分类号： G06T15/08 , G06T15/04 , G06T19/00 , G06T2219/008
摘要： An intersection of a cut plane with a proxy geometry representing a scan volume is determined with a processor. The intersection is simplified, such as identifying a quadrilateral or triangle most closely enclosing the intersection. The vertex processor of a GPU deforms a reference grid and determines Cartesian coordinates and the texture coordinates for grid points of the reference grid as a function of the input intersection. The vertex processor provides coordinates for data for subsets of cut planes. The fragment processor inputs the texture coordinates and retrieves the data from the texture memory. The data is blended. The blended subsets are then blended together in the frame buffer of the GPU.
摘要翻译：用处理器确定切割平面与表示扫描体积的代理几何体的交点。交叉点被简化，例如识别最密切围绕交点的四边形或三角形。 GPU的顶点处理器使参考网格变形，并根据输入交点确定参考网格的网格点的笛卡尔坐标和纹理坐标。顶点处理器提供切割平面子集的数据坐标。片段处理器输入纹理坐标并从纹理存储器中检索数据。数据混合。混合子集然后在GPU的帧缓冲器中混合在一起。

3. 发明授权

US07714855B2 Volume rendering processing distribution in a graphics processing unit 有权
标题翻译：图形处理单元中的体绘制处理分布
公开(公告)号：US07714855B2
公开(公告)日：2010-05-11
申请号：US11126043
申请日：2005-05-09
申请人： Stefan Brabec , Thilaka S. Sumanaweera
发明人： Stefan Brabec , Thilaka S. Sumanaweera
IPC分类号： G06T1/00
CPC分类号： G06T15/08 , G06T15/04 , G06T19/00 , G06T2219/008
摘要： An intersection of a cut plane with a proxy geometry representing a scan volume is determined with a processor. The intersection is simplified, such as identifying a quadrilateral or triangle most closely enclosing the intersection. The vertex processor of a GPU deforms a reference grid and determines Cartesian coordinates and the texture coordinates for grid points of the reference grid as a function of the input intersection. The vertex processor provides coordinates for data for subsets of cut planes. The fragment processor inputs the texture coordinates and retrieves the data from the texture memory. The data is blended. The blended subsets are then blended together in the frame buffer of the GPU.
摘要翻译：用处理器确定切割平面与表示扫描体积的代理几何体的交点。交叉点被简化，例如识别最密切围绕交点的四边形或三角形。 GPU的顶点处理器使参考网格变形，并根据输入交点确定参考网格的网格点的笛卡尔坐标和纹理坐标。顶点处理器提供切割平面子集的数据坐标。片段处理器输入纹理坐标并从纹理存储器中检索数据。数据混合。混合子集然后在GPU的帧缓冲器中混合在一起。

4. 发明授权

US08736609B2 Method and device for visualizing surface-like structures in volumetric data sets 有权
标题翻译：用于在体积数据集中可视化表面状结构的方法和装置
公开(公告)号：US08736609B2
公开(公告)日：2014-05-27
申请号：US12917608
申请日：2010-11-02
申请人： Stefan Brabec
发明人： Stefan Brabec
IPC分类号： G06T15/50 , G06T15/80 , G06T17/00 , G06T15/83
CPC分类号： G06T15/08 , G06T15/50
摘要： The present invention relates to a method and a device for visualizing surface-like structures in volumetric data sets, including defining local coordinate systems at sample points of the volumetric data set, transforming external parameters from a global coordinate system into the local coordinate systems, calculating the gradient vector components (Gai, Gbi, Gci) within the local coordinate systems of the sample points, and using the gradient vector components (Gai, Gbi, Gci) for calculating a surface normal at a given position of the volumetric data set, where the surface normal is important for conventional illumination models such as the Blinn-Phong shading model, preferably, the present invention is also calculating the external parameters from the global coordinate system at the given position by using the transformed external parameters of the local coordinate systems of the sample points, where the shading or illumination at the given position is then done by using a conventional illumination model, thereby using the calculated surface normal at the given position and the calculated external parameters at the given position.
摘要翻译：本发明涉及一种用于在体数据集中可视化表面状结构的方法和装置，包括在体积数据集的采样点定义局部坐标系，将外部参数从全局坐标系转换成局部坐标系，计算在采样点的局部坐标系中的梯度矢量分量（Gai，Gbi，Gci），并使用梯度矢量分量（Gai，Gbi，Gci）计算体积数据集的给定位置的表面法线，其中表面法线对于诸如Blinn-Phong阴影模型的常规照明模型是重要的，优选地，本发明还通过使用局部坐标系的变换的外部参数来计算来自于给定位置处的全局坐标系的外部参数样本点，其中通过使用修道院完成给定位置处的阴影或照明从而使用给定位置处的计算表面法线和给定位置处的计算外部参数。

5. 发明授权

US08358304B2 Method and apparatus for representing 3D image records in 2D images 有权
标题翻译：用于在2D图像中表示3D图像记录的方法和装置
公开(公告)号：US08358304B2
公开(公告)日：2013-01-22
申请号：US12303800
申请日：2008-02-05
申请人： Stefan Brabec
发明人： Stefan Brabec
IPC分类号： G06T17/00
CPC分类号： G06T15/00 , G06T11/001
摘要： The invention relates to method and an apparatus for depth cueing, i.e. improving the sense of depth in two-dimensional images of three-dimensional volume data, said 2D images being generated using volume rendering. The invention is characterized in that a second depth color chart generated from the original color chart by permuting at least two color channels is used in the depth dimension. Alternatively, all three color channels can be permuted.
摘要翻译：本发明涉及用于深度提示的方法和装置，即提高三维体数据的二维图像中的深度感，所述2D图像是使用体绘制生成的。本发明的特征在于，在深度维度中使用通过置换至少两个颜色通道从原始颜色图表生成的第二深度颜色图表。或者，所有三个颜色通道可以被排列。

6. 发明申请

US20080012852A1 Volume rendering processing distribution in a graphics processing unit 有权
标题翻译：图形处理单元中的体绘制处理分布
公开(公告)号：US20080012852A1
公开(公告)日：2008-01-17
申请号：US11903322
申请日：2007-09-20
申请人： Stefan Brabec , Thilaka Sumanaweera
发明人： Stefan Brabec , Thilaka Sumanaweera
IPC分类号： G06T15/00
CPC分类号： G06T19/00 , G06T15/08 , G06T2219/008
摘要： An intersection of a cut plane with a proxy geometry representing a scan volume is determined with a processor. The intersection is simplified, such as identifying a quadrilateral or triangle most closely enclosing the intersection. The vertex processor of a GPU deforms a reference grid and determines Cartesian coordinates and the texture coordinates for grid points of the reference grid as a function of the input intersection. The vertex processor provides coordinates for data for subsets of cut planes. The fragment processor inputs the texture coordinates and retrieves the data from the texture memory. The data is blended. The blended subsets are then blended together in the frame buffer of the GPU.
摘要翻译：用处理器确定切割平面与表示扫描体积的代理几何体的交点。交叉点被简化，例如识别最密切围绕交点的四边形或三角形。 GPU的顶点处理器使参考网格变形，并根据输入交点确定参考网格的网格点的笛卡尔坐标和纹理坐标。顶点处理器提供切割平面子集的数据坐标。片段处理器输入纹理坐标并从纹理存储器中检索数据。数据混合。混合子集然后在GPU的帧缓冲器中混合在一起。

7. 发明申请

US20110181590A1 METHOD AND APPARATUS FOR REPRESENTING 3D IMAGE RECORDS IN 2D IMAGES 有权
标题翻译：用于表示2D图像中的3D图像记录的方法和装置
公开(公告)号：US20110181590A1
公开(公告)日：2011-07-28
申请号：US12303800
申请日：2008-02-05
申请人： Stefan Brabec
发明人： Stefan Brabec
IPC分类号： G06T17/00
CPC分类号： G06T15/00 , G06T11/001
摘要： The invention relates to method and an apparatus for depth cueing, i.e. improving the sense of depth in two-dimensional images of three-dimensional volume data, said 2D images being generated using volume rendering. The invention is characterized in that a second depth color chart generated from the original color chart by permuting at least two color channels is used in the depth dimension. Alternatively, all three color channels can be permuted.
摘要翻译：本发明涉及用于深度提示的方法和装置，即提高三维体数据的二维图像中的深度感，所述2D图像是使用体绘制生成的。本发明的特征在于，在深度维度中使用通过置换至少两个颜色通道从原始颜色图表生成的第二深度颜色图表。或者，所有三个颜色通道可以被排列。

8. 发明申请

US20050253841A1 Volume rendering processing distribution in a graphics processing unit 有权
标题翻译：图形处理单元中的体绘制处理分布
公开(公告)号：US20050253841A1
公开(公告)日：2005-11-17
申请号：US11126043
申请日：2005-05-09
申请人： Stefan Brabec , Thilaka Sumanaweera
发明人： Stefan Brabec , Thilaka Sumanaweera
IPC分类号： G06T15/08 , G06T15/60 , G09G5/00 , G06T15/50
CPC分类号： G06T15/08 , G06T15/04 , G06T19/00 , G06T2219/008
摘要： An intersection of a cut plane with a proxy geometry representing a scan volume is determined with a processor. The intersection is simplified, such as identifying a quadrilateral or triangle most closely enclosing the intersection. The vertex processor of a GPU deforms a reference grid and determines Cartesian coordinates and the texture coordinates for grid points of the reference grid as a function of the input intersection. The vertex processor provides coordinates for data for subsets of cut planes. The fragment processor inputs the texture coordinates and retrieves the data from the texture memory. The data is blended. The blended subsets are then blended together in the frame buffer of the GPU.
摘要翻译：用处理器确定切割平面与表示扫描体积的代理几何体的交点。交叉点被简化，例如识别最密切围绕交点的四边形或三角形。 GPU的顶点处理器使参考网格变形，并根据输入交点确定参考网格的网格点的笛卡尔坐标和纹理坐标。顶点处理器提供切割平面子集的数据坐标。片段处理器输入纹理坐标并从纹理存储器中检索数据。数据混合。混合子集然后在GPU的帧缓冲器中混合在一起。

9. 发明授权

US08634615B2 Method of filtering an image dataset 有权
标题翻译：过滤图像数据集的方法
公开(公告)号：US08634615B2
公开(公告)日：2014-01-21
申请号：US13122931
申请日：2008-10-08
申请人： Stefan Brabec
发明人： Stefan Brabec
IPC分类号： G06K9/00
CPC分类号： G06T5/002 , G06T5/20 , G06T2207/10132 , G06T2207/30004
摘要： A method of filtering an image dataset and an apparatus, a data carrier, and a computer program product, the method having the following steps: providing an N-dimensional input image dataset; applying a filtering algorithm to the input image dataset, wherein the filtering algorithm is essentially unvarying over the dataset, to thereby obtain a filtered image dataset; providing a spatially varying weighting function between the input and the filtered image datasets; computing a weighted sum of the input image dataset and the filtered image dataset, thereby using the spatially varying weighting function, in order to obtain an output image dataset.
摘要翻译：一种过滤图像数据集和装置，数据载体和计算机程序产品的方法，该方法具有以下步骤：提供N维输入图像数据集; 对输入图像数据集应用滤波算法，其中所述滤波算法基本上在所述数据集上不变，从而获得滤波图像数据集; 在输入和滤波图像数据集之间提供空间变化的加权函数; 计算输入图像数据集和滤波图像数据集的加权和，从而使用空间变化的加权函数，以获得输出图像数据集。

10. 发明申请

US20110262023A1 METHOD OF FILTERING AN IMAGE DATASET 有权
标题翻译：过滤图像数据的方法
公开(公告)号：US20110262023A1
公开(公告)日：2011-10-27
申请号：US13122931
申请日：2008-10-08
申请人： Stefan Brabec
发明人： Stefan Brabec
IPC分类号： G06K9/00
CPC分类号： G06T5/002 , G06T5/20 , G06T2207/10132 , G06T2207/30004
摘要： A method of filtering an image dataset and an apparatus, a data carrier, and a computer program product, the method having the following steps: providing an N-dimensional input image dataset; applying a filtering algorithm to the input image dataset, wherein the filtering algorithm is essentially unvarying over the dataset, to thereby obtain a filtered image dataset; providing a spatially varying weighting function between the input and the filtered image datasets; computing a weighted sum of the input image dataset and the filtered image dataset, thereby using the spatially varying weighting function, in order to obtain an output image dataset.
摘要翻译：一种过滤图像数据集和装置，数据载体和计算机程序产品的方法，该方法具有以下步骤：提供N维输入图像数据集; 对输入图像数据集应用滤波算法，其中所述滤波算法基本上在所述数据集上不变，从而获得滤波图像数据集; 在输入和滤波图像数据集之间提供空间变化的加权函数; 计算输入图像数据集和滤波图像数据集的加权和，从而使用空间变化的加权函数，以获得输出图像数据集。

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