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31.发明授权Method and apparatus for mapping reflectance while illuminating volume data in a rendering pipeline 有权在渲染管线中照射体数据时映射反射率的方法和装置公开(公告)号：US06426749B1
公开(公告)日：2002-07-30
申请号：US09315264
申请日：1999-05-20
IPC分类号： G06T1700
CPC分类号： G06T15/506 , G06T15/005 , G06T15/08
摘要： Reflection intensities of volume samples of a volume are mapped in a rendering pipeline by determining a reflection vector from a gradient vector associated with a sample and an eye vector associated with the volume. A diffuse reflectance map is indexed by the gradient vector to obtain a diffuse intensity. A specular reflection map is indexed by the gradient vector to obtain a specular intensity in response to a bypass signal being true, and a specular reflection map is indexed by the reflection vector to obtain the specular intensity in response to the bypass signal being false.
摘要翻译： 通过从与样本相关联的梯度向量和与该体积相关联的眼矢量确定反射矢量，将体积体积样本的反射强度映射在渲染管线中。 漫反射图由梯度矢量索引，以获得漫反射强度。 镜面反射图由梯度矢量索引，以响应于旁路信号为真，获得镜面强度，并且反射映射由反射矢量索引，以响应旁路信号为假来获得镜面强度。
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32.发明授权Method and apparatus for modulating lighting with gradient magnitudes of volume data in a rendering pipeline 有权用于在渲染管线中用体积数据的梯度幅度调制照明的方法和装置公开(公告)号：US06356265B1
公开(公告)日：2002-03-12
申请号：US09316122
申请日：1999-05-20
IPC分类号： G06T1700
CPC分类号： G06T15/506 , G06T15/005 , G06T15/08 , G06T15/50
摘要： An apparatus generates lighting modulation factors for samples in a volume rendering pipeline. The apparatus includes a first arithmetic logic unit squaring a gradient magnitude vector of a sample to produce a squared gradient magnitude. A second arithmetic logic unit produces a gradient magnitude from the squared gradient magnitude. A shift register, connected to the first arithmetic logic unit, truncates a predetermined number of high bits of the squared gradient magnitude. A gradient magnitude modulation register stores modulation parameters. A first multiplexer, connected to the second arithmetic logic unit and the shift register, selects the truncated squared gradient magnitude as an index if an index source signal is true, and the gradient magnitude if the index source signal is false, and a memory table is indexes by the index to produce modulated opacity, emissive, diffuse and specular modulation factors.
摘要翻译： 设备为体绘制流水线中的样品生成照明调制因子。 该装置包括第一算术逻辑单元，对样本的梯度幅度矢量进行平方以产生平方梯度幅度。 第二算术逻辑单元从平方梯度幅度产生梯度幅度。 连接到第一算术逻辑单元的移位寄存器截断预定数量的平方梯度幅度的高位。 梯度幅度调制寄存器存储调制参数。 如果索引源信号为真，连接到第二算术逻辑单元和移位寄存器的第一多路复用器选择截断的平方梯度幅度作为索引，如果索引源信号为假，则选择梯度幅值，存储表是 指数由指数产生调制不透明度，发射，漫反射和镜面调制因子。
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公开(公告)号：US06262740B1
公开(公告)日：2001-07-17
申请号：US09318430
申请日：1999-05-25
IPC分类号： G06T1700
CPC分类号： G06T15/08 , G06T1/60 , G06T15/005 , G06T15/40
摘要： A method renders a volume data set including a plurality of voxels. In the method, a). the volume data set is apportioned into a plurality of sections. Then, b). a first one of the plurality of sections is rendered by sequentially reading groups of voxels from an external memory and rendering the groups of voxels in the section. Then, c). any accumulated data from the rendering of the first one of the plurality of sections is stored in a temporary storage device. Then, a next one of the plurality of sections is rendered by sequentially reading groups of voxels of the next one of the plurality of sections from an external memory and rendering the groups of voxels, the rendering incorporating accumulated data from the temporary storage device, and then any accumulated data from the rendering of the next one of the plurality of sections is stored in the temporary storage device. Steps d and e are repeated until each of the plurality of sections of the volume data set have been rendered.
摘要翻译： 一种方法呈现包括多个体素的体数据集。 在该方法中，a）。 音量数据集被分配成多个部分。 然后，b）。 通过从外部存储器中依次读取体素组并渲染该部分中的体素组来呈现多个部分中的第一部分。 然后，c）。 来自多个部分中的第一个部分的呈现的任何累积数据被存储在临时存储装置中。 然后，通过从外部存储器顺序地读取多个部分中的下一个部分的体素组，并且渲染结合来自临时存储装置的累积数据的体素组，并渲染多个部分中的下一个部分，以及 那么来自多个部分中的下一个部分的呈现的任何累积数据被存储在临时存储装置中。 重复步骤d和e，直到卷数据集的多个部分中的每一个已被渲染。
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公开(公告)号：US06219061B1
公开(公告)日：2001-04-17
申请号：US09320365
申请日：1999-05-25
IPC分类号： G06T1700
CPC分类号： G06T15/08 , G06T1/60 , G06T15/005 , G06T15/40
摘要： A volume graphics device renders a volume data set. The volume data set is apportioned into blocks of volume data, and each of the blocks are apportioned into a plurality of mini-blocks, each mini-block includes at least two voxels of volume data. The volume graphics device includes memory apportioned into a plurality of portions, wherein neighboring blocks of the volume data set are each stored in different ones of the plurality of portions of the memory, and wherein the mini-blocks of each block are stored in consecutive locations in the portion of memory associated with the associated block.
摘要翻译： 卷图形设备呈现卷数据集。 音量数据组被分配成音量数据的块，并且每个块被分配成多个微块，每个迷你块包括体数据的至少两个体素。 体积图形装置包括分配到多个部分中的存储器，其中卷数据组的相邻块各自存储在存储器的多个部分的不同部分中，并且其中每个块的小块被存储在连续位置 在与相关块相关联的存储器部分中。
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公开(公告)号：US20080260238A1
公开(公告)日：2008-10-23
申请号：US11738642
申请日：2007-04-23
IPC分类号： G06K9/00
CPC分类号： G06K9/00208 , G06T7/74 , G06T2207/10028
摘要： A method and system determines a pose of an object by comparing an input range image acquired of a scene including the input object to each of a set of reference range image of a reference object, such that each reference range images has an associated different pose, and the reference object is similar to the input object. Then, the pose associated with the reference range image which best matches the input range image is selected as the pose of the input object.
摘要翻译： 方法和系统通过将获取的包括输入对象的场景的输入范围图像与参考对象的一组参考范围图像的每一个进行比较来确定对象的姿态，使得每个参考范围图像具有相关联的不同姿势， 并且引用对象类似于输入对象。 然后，选择与输入范围图像最佳匹配的参考范围图像相关联的姿势作为输入对象的姿态。
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公开(公告)号：US07298372B2
公开(公告)日：2007-11-20
申请号：US10961810
申请日：2004-10-08
申请人： Hanspeter Pfister , Matthias B. Zwicker , Wei Chen , Liu Ren
发明人： Hanspeter Pfister , Matthias B. Zwicker , Wei Chen , Liu Ren
IPC分类号： G06T17/00
CPC分类号： G06T15/08
摘要： A method renders a volume data set including a plurality of voxels. A sampling rate for each voxel in a volume data set is determined. Each voxel is filtered according to the sampling rate and pixels for an output image are generated from the filtered voxels.
摘要翻译： 一种方法呈现包括多个体素的体数据集。 确定体数据集中的每个体素的采样率。 根据采样率对每个体素进行滤波，并从滤波体素生成输出图像的像素。
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公开(公告)号：US07215340B2
公开(公告)日：2007-05-08
申请号：US10199141
申请日：2002-07-19
申请人： Hanspeter Pfister , Liu Ren , Matthias B. Zwicker
发明人： Hanspeter Pfister , Liu Ren , Matthias B. Zwicker
摘要： A method renders a 3D model of a graphics object wherein the model includes discrete zero-dimensional points. A first opaque polygon is centered on each point, and the polygon is rendered to obtain depth values of a depth image in a z-buffer. A second polygon is centered on each point. The second polygons are adapted to associated object space EWA resampling filters, and the adapted second polygons are rendered as an image according to the depth values in the depth image.
摘要翻译： 一种方法呈现图形对象的3D模型，其中模型包括离散的零维点。 第一个不透明多边形以每个点为中心，并且渲染多边形以获得z缓冲区中深度图像的深度值。 第二个多边形以每个点为中心。 第二多边形适用于相关对象空间EWA重采样滤波器，并且适配的第二多边形根据深度图像中的深度值被渲染为图像。
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38.发明申请Method for determining optimal viewpoints for 3D face modeling and face recognition 有权用于确定3D脸部建模和面部识别的最佳视点的方法公开(公告)号：US20050031196A1
公开(公告)日：2005-02-10
申请号：US10836004
申请日：2004-04-30
申请人： Baback Moghaddam , Hanspeter Pfister , Jinho Lee
发明人： Baback Moghaddam , Hanspeter Pfister , Jinho Lee
CPC分类号： G06K9/00288 , G06T17/00
摘要： A method determines an optimal set of viewpoints to acquire a 3D shape of a face. A view-sphere is tessellated with a plurality of viewpoint cells. The face is at an approximate center of the view-sphere. Selected viewpoint cells are discarded. The remaining viewpoint cells are clustered to a predetermined number of viewpoint cells according to a silhouette difference metric. The predetermined number of viewpoint cells are searched for a set of optimal viewpoint cells to construct a 3D model of the face.
摘要翻译： 一种方法确定获得面部3D形状的最佳视点集合。 用多个视点单元镶嵌视野球。 脸部位于视野球的大致中心。 所选视点单元被丢弃。 根据剪影差异度量，剩余的视点单元被聚集到预定数量的视点单元。 搜索预定数量的视点单元以获得一组最佳视点单元，以构造面部的3D模型。
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39.发明授权Temporal and spatial coherent ray tracing for rendering scenes with sampled and geometry data 失效使用采样和几何数据渲染场景的时间和空间相干光线跟踪公开(公告)号：US06556200B1
公开(公告)日：2003-04-29
申请号：US09388338
申请日：1999-09-01
IPC分类号： G06T1550
摘要： A method traces rays through graphical data. The method partitions the graphical data into a plurality of blocks according to a scheduling grid. For each block, a ray queue is generated. Each entry in the ray queue representing a ray to be traced through the block. The ray queues are ordered spatially and temporally using a dependency graph. The rays are traced through the blocks according to the ordered list.
摘要翻译： 一种方法通过图形数据跟踪光线。 该方法根据调度网格将图形数据分割成多个块。 对于每个块，生成射线队列。 射线队列中的每个条目表示要通过块追踪的射线。 射线队列使用依赖图在空间和时间上排序。 根据有序列表，光线通过块进行跟踪。
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公开(公告)号：US06512517B1
公开(公告)日：2003-01-28
申请号：US09315742
申请日：1999-05-20
申请人： James M. Knittel , Stephen R. Burgess , Kenneth W. Correll , Jan C. Hardenbergh , Christopher J. Kappler , Hugh C. Lauer , Stephen F. Mason , Takahide Ohkami , William R. Peet , Hanspeter Pfister , Beverly J. Schultz , Jay C. Wilkinson
发明人： James M. Knittel , Stephen R. Burgess , Kenneth W. Correll , Jan C. Hardenbergh , Christopher J. Kappler , Hugh C. Lauer , Stephen F. Mason , Takahide Ohkami , William R. Peet , Hanspeter Pfister , Beverly J. Schultz , Jay C. Wilkinson
IPC分类号： G06T1700
CPC分类号： G06T15/08 , G06T1/20 , G06T15/005 , G06T2200/28
摘要： A volume rendering integrated circuit includes a plurality of interconnected pipelines having stages operating in parallel. The stages of the pipelines are interconnected in a ring, with data being passed in only one direction around the ring. The volume integrated circuit also includes a render controller for controlling the flow of volume data to and from the pipelines and for controlling rendering operations of the pipelines. The integrated circuit may further include interfaces for coupling the integrated circuit to various storage devices and to a host computer.
摘要翻译： 体绘制集成电路包括具有并行操作的多个相互连接的管道。 管道的阶段以环形相互连接，数据仅在围绕环的一个方向上传递。 音量集成电路还包括一个渲染控制器，用于控制到管道和从管道流出的数据流量，并用于控制管线的渲染操作。 集成电路还可以包括用于将集成电路耦合到各种存储设备和主计算机的接口。
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