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1. 发明申请

US20130038605A1 SELECTIVE FLOW VISUALIZATION OF TRACED PARTICLES 有权
标题翻译：追踪颗粒的选择性流动可视化
公开(公告)号：US20130038605A1
公开(公告)日：2013-02-14
申请号：US13556366
申请日：2012-07-24
申请人： Wei Li , Feng Qiu , Daphne Yu
发明人： Wei Li , Feng Qiu , Daphne Yu
IPC分类号： G09G5/00 , G06T15/00
CPC分类号： G06T19/00 , G06F2217/16 , G06T2210/24
摘要： A method for tracing a plurality of virtual particles through a flow filed includes receiving a flow field. A flow domain is divided into cells. Virtual particles are defined within the flow domain and values are collected for flow properties at each cell. A histogram is generated for each cell representing the collected flow properties for that corresponding cell. The histogram includes, for each of the one or more flow properties, a plurality of bins defining ranges of property values and a count of virtual particles within that cell that exhibit those properties. The histograms for the plurality of cells are advected with respect to the flow field over time. A graphical representation of the plurality of particles within the flow domain is rendered based on the advected histograms for the plurality of cells using a graphics processor.
摘要翻译：通过流场跟踪多个虚拟粒子的方法包括接收流场。流域分为细胞。在流域内定义虚拟粒子，并收集每个单元格下的流动属性值。为表示该相应单元格的采集流特性的每个单元格生成直方图。所述直方图针对所述一个或多个流特性中的每一个包括多个限定属性值的范围和显示所述属性的所述单元内的虚拟粒子的计数的箱。随着时间的推移，多个单元格的直方图相对于流场平流。基于使用图形处理器的多个单元的平流的直方图来呈现流域内的多个粒子的图形表示。

2. 发明授权

US07773086B2 Range-peeling for punching masks in volume rendering 有权
标题翻译：用于在体积渲染中冲压口罩的范围剥离
公开(公告)号：US07773086B2
公开(公告)日：2010-08-10
申请号：US11687728
申请日：2007-03-19
申请人： Wei Li , Daphne Yu
发明人： Wei Li , Daphne Yu
IPC分类号： G06T17/00
CPC分类号： G06T15/08
摘要： Rendering with a punching mask is performed without voxelization. A plurality of sub-volumes are identified as a function of the punching mask. The sub-volumes are generally layered in range. Each sub-volume is rendered separately or independently. The renderings from multiple passes or sub-volumes are composited together.
摘要翻译：使用冲孔掩模进行渲染，而不进行体素化。多个子体积被识别为穿孔掩模的函数。子体积通常分层。每个子卷单独或单独渲染。来自多个遍或子卷的渲染合成在一起。

3. 发明授权

US08761474B2 Method for vascular flow pattern analysis 有权
标题翻译：血管流动模式分析方法
公开(公告)号：US08761474B2
公开(公告)日：2014-06-24
申请号：US13535607
申请日：2012-06-28
申请人： Daphne Yu , Wei Li , Feng Qiu
发明人： Daphne Yu , Wei Li , Feng Qiu
IPC分类号： G06K9/00 , G06K9/34 , G06K9/48
CPC分类号： G06T7/0016 , G06T11/206 , G06T2200/24 , G06T2207/10016 , G06T2207/10072 , G06T2207/30104 , G06T2207/30172
摘要： A method (100) of computing and displaying flow information of vascular blood flow patterns, especially in the form of quantitative data plots.
摘要翻译：一种计算和显示血管血流模式的流动信息的方法（100），特别是以定量数据图的形式。

4. 发明申请

US20090295800A1 METHOD FOR DIRECT VOLUMETRIC RENDERING OF DEFORMABLE BRICKED VOLUMES 有权
标题翻译：直径体积增加可变形砖块的方法
公开(公告)号：US20090295800A1
公开(公告)日：2009-12-03
申请号：US12365926
申请日：2009-02-05
申请人： Christoph Vetter , Daphne Yu , Wei Li , Wei Hong
发明人： Christoph Vetter , Daphne Yu , Wei Li , Wei Hong
IPC分类号： G06T17/00
CPC分类号： G06T15/08 , G06T17/005
摘要： A method for rendering a deformable object. The method includes: obtaining a 3D volumetric voxel dataset of a region, such region having therein an object to be rendered; building a tree hierarchical structure for the obtained volumetric dataset, such tree structure blocks as the nodes of a primary tree hierarchy and bricks being those blocks stored as textures in a video memory; augmenting the primary tree hierarchical structure with maximum and minimum values of the data contained within a block; creating a neighborhood tree hierarchy having for each leaf block of the neighborhood tree hierarchy a reference to the neighboring leaf blocks in the neighborhood tree hierarchy as well as references to neighboring bricks in the neighborhood tree hierarchy; updating the information about minimum and maximum in the primary tree hierarchy by saving for each block the minimum and maximum of the neighboring blocks; and rendering the leaf blocks in visibility order.
摘要翻译：一种用于渲染可变形对象的方法。该方法包括：获得区域的3D体积体元数据集，其中具有要渲染的对象的区域; 为所获得的体数据集构建树分层结构，这样的树结构块作为主树层次结构的节点，砖是作为纹理存储在视频存储器中的块; 以包含在块内的数据的最大值和最小值来增加主树分层结构; 创建邻域树层次结构，对于邻域树层次中的每个叶块，对邻域树层次中的相邻叶块的引用以及邻域树层次中的相邻砖的引用; 通过为每个块保存相邻块的最小值和最大值来更新主树层次结构中关于最小和最大值的信息; 并以可见性顺序呈现叶块。

5. 发明申请

US20070237038A1 Range-Peeling For Punching Masks in Volume Rendering 有权
标题翻译：用于在体积渲染中冲压面罩的范围剥离
公开(公告)号：US20070237038A1
公开(公告)日：2007-10-11
申请号：US11687728
申请日：2007-03-19
申请人： Wei Li , Daphne Yu
发明人： Wei Li , Daphne Yu
IPC分类号： G11B11/00
CPC分类号： G06T15/08
摘要： Rendering with a punching mask is performed without voxelization. A plurality of sub-volumes are identified as a function of the punching mask. The sub-volumes are generally layered in range. Each sub-volume is rendered separately or independently. The renderings from multiple passes or sub-volumes are composited together.
摘要翻译：使用冲孔掩模进行渲染，而不进行体素化。多个子体积被识别为穿孔掩模的函数。子体积通常分层。每个子卷单独或单独渲染。来自多个遍或子卷的渲染合成在一起。

6. 发明授权

US09001117B2 Selective flow visualization of traced particles 有权
标题翻译：追踪颗粒的选择性流动可视化
公开(公告)号：US09001117B2
公开(公告)日：2015-04-07
申请号：US13556366
申请日：2012-07-24
申请人： Wei Li , Feng Qiu , Daphne Yu
发明人： Wei Li , Feng Qiu , Daphne Yu
IPC分类号： G06T15/00 , G06T19/00
CPC分类号： G06T19/00 , G06F2217/16 , G06T2210/24
摘要： A method for tracing a plurality of virtual particles through a flow filed includes receiving a flow field. A flow domain is divided into cells. Virtual particles are defined within the flow domain and values are collected for flow properties at each cell. A histogram is generated for each cell representing the collected flow properties for that corresponding cell. The histogram includes, for each of the one or more flow properties, a plurality of bins defining ranges of property values and a count of virtual particles within that cell that exhibit those properties. The histograms for the plurality of cells are advected with respect to the flow field over time. A graphical representation of the plurality of particles within the flow domain is rendered based on the advected histograms for the plurality of cells using a graphics processor.
摘要翻译：通过流场跟踪多个虚拟粒子的方法包括接收流场。流域分为细胞。在流域内定义虚拟粒子，并收集每个单元格下的流动属性值。为表示该相应单元格的采集流特性的每个单元格生成直方图。所述直方图针对所述一个或多个流特性中的每一个包括多个限定属性值的范围和显示所述属性的所述单元内的虚拟粒子的计数的箱。随着时间的推移，多个单元格的直方图相对于流场平流。基于使用图形处理器的多个单元的平流的直方图来呈现流域内的多个粒子的图形表示。

7. 发明申请

US20130051640A1 METHOD FOR VASCULAR FLOW PATTERN ANALYSIS 有权
标题翻译：血管图案分析方法
公开(公告)号：US20130051640A1
公开(公告)日：2013-02-28
申请号：US13535607
申请日：2012-06-28
申请人： Daphne Yu , Wei Li , Feng Qiu
发明人： Daphne Yu , Wei Li , Feng Qiu
IPC分类号： G06K9/00
CPC分类号： G06T7/0016 , G06T11/206 , G06T2200/24 , G06T2207/10016 , G06T2207/10072 , G06T2207/30104 , G06T2207/30172
摘要： A method (100) of computing and displaying flow information of vascular blood flow patterns, especially in the form of quantitative data plots.
摘要翻译：一种计算和显示血管血流模式的流动信息的方法（100），特别是以定量数据图的形式。

8. 发明授权

US08497861B2 Method for direct volumetric rendering of deformable bricked volumes 有权
标题翻译：直接体积渲染可变形砖体的方法
公开(公告)号：US08497861B2
公开(公告)日：2013-07-30
申请号：US12365926
申请日：2009-02-05
申请人： Christoph Vetter , Daphne Yu , Wei Li , Wei Hong
发明人： Christoph Vetter , Daphne Yu , Wei Li , Wei Hong
IPC分类号： G06T19/00 , G06T17/20 , G06T15/40 , G06T15/08
CPC分类号： G06T15/08 , G06T17/005
摘要： A method for rendering a deformable object. The method includes: obtaining a 3D volumetric voxel dataset of a region, such region having therein an object to be rendered; building a tree hierarchical structure for the obtained volumetric dataset, such tree structure blocks as the nodes of a primary tree hierarchy and bricks being those blocks stored as textures in a video memory; augmenting the primary tree hierarchical structure with maximum and minimum values of the data contained within a block; creating a neighborhood tree hierarchy having for each leaf block of the neighborhood tree hierarchy a reference to the neighboring leaf blocks in the neighborhood tree hierarchy as well as references to neighboring bricks in the neighborhood tree hierarchy; updating the information about minimum and maximum in the primary tree hierarchy by saving for each block the minimum and maximum of the neighboring blocks; and rendering the leaf blocks in visibility order.
摘要翻译：一种用于渲染可变形对象的方法。该方法包括：获得区域的3D体积体元数据集，其中具有要渲染的对象的区域; 为所获得的体数据集构建树分层结构，这样的树结构块作为主树层次结构的节点，砖是作为纹理存储在视频存储器中的块; 以包含在块内的数据的最大值和最小值来增加主树分层结构; 创建邻域树层次结构，对于邻域树层次中的每个叶块，对邻域树层次中的相邻叶块的引用以及邻域树层次中的相邻砖的引用; 通过为每个块保存相邻块的最小值和最大值来更新主树层次结构中关于最小和最大值的信息; 并以可见性顺序呈现叶块。

9. 发明授权

US08493388B2 Modular volume rendering using visual programming 有权
标题翻译：使用可视化编程进行模块化体绘制
公开(公告)号：US08493388B2
公开(公告)日：2013-07-23
申请号：US11835508
申请日：2007-08-08
申请人： Matthieu Dederichs , Klaus Engel , Daphne Yu
发明人： Matthieu Dederichs , Klaus Engel , Daphne Yu
IPC分类号： G06T15/60
CPC分类号： G06T15/00
摘要： The rendering pipeline is divided into multiple components or modules in a scene graph based visual programming environment. Different stages of the rendering pipeline, such as data conversion, transform function, shading, and rendering, are grouped into independent conceptual modules, and each module is implemented by separate nodes in a scene graph. The user may select different nodes belonging to different modules for inclusion into the scene graph to program the rendering pipeline. The visual program is implicitly compiled and run using an application programming interface for hardware acceleration.
摘要翻译：渲染管线在基于场景图形的可视化编程环境中分为多个组件或模块。渲染流水线的不同阶段（如数据转换，变换功能，阴影和渲染）分为独立的概念模块，每个模块由场景图中的单独节点实现。用户可以选择属于不同模块的不同节点，以便包含在场景图中以对渲染管线进行编程。可视化程序使用用于硬件加速的应用程序编程接口进行隐式编译和运行。

10. 发明授权

US07826684B2 Optimization and view dependency reduction for processing slice-based volumes 有权
标题翻译：优化和查看处理基于片段卷的依赖关系
公开(公告)号：US07826684B2
公开(公告)日：2010-11-02
申请号：US11337772
申请日：2006-01-23
申请人： Daphne Yu , Robert Schneider
发明人： Daphne Yu , Robert Schneider
IPC分类号： G06K9/32
CPC分类号： G06T19/00 , G06T15/08 , G06T2219/008
摘要： This invention describes an optimization and view dependency reduction method for multiplanar reformatting (MPR) of slice-based volume images. This method utilizes a traversal scheme that allows for efficient access of the computer memory layout of a sliced based volume, and therefore optimizes overall processing time. This method does not require changes to the volume memory layout or additional volume memory. Instead, efficient memory access is achieved by adaptive traversal patterns on the reformatting planes. The traversal pattern is adapted on-the-fly during rendering as the reformatting plane location and orientation is changed arbitrarily relative to the volume. In this way, the typical speed differences between various reformatting planes orientations caused by inefficient memory access is greatly reduced. Computer cache coherency, SIMD coherent implementation, and multiprocessing environments are also considered in the design of the traversal pattern.
摘要翻译：本发明描述了用于基于片的体积图像的多平面重新格式化（MPR）的优化和视图依赖性降低方法。该方法利用遍历方案，允许有效访问基于片段的卷的计算机存储器布局，因此优化整个处理时间。此方法不需要更改卷内存布局或额外的卷内存。相反，通过重新格式化平面上的自适应遍历模式实现高效的存储器访问。随着重新格式化平面位置和方向相对于卷的任意改变，遍历模式在渲染期间随时适应。以这种方式，由于低效的存储器访问引起的各种重新格式化平面方向之间的典型速度差异大大降低。在遍历模式的设计中也考虑了计算机缓存一致性，SIMD相干实现和多处理环境。

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