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1. 发明授权

US07663623B2 Spherical harmonics scaling 有权
标题翻译：球面谐波缩放
公开(公告)号：US07663623B2
公开(公告)日：2010-02-16
申请号：US11612394
申请日：2006-12-18
申请人： Kun Zhou , Jiaping Wang , Stephen Lin , Baining Guo
发明人： Kun Zhou , Jiaping Wang , Stephen Lin , Baining Guo
IPC分类号： G06T15/50 , G06T15/00
CPC分类号： G06T15/55
摘要： A method, device and system is provided for providing global illumination of a scene. For example, global illumination may be provided in a rendered 3-dimensional image that may contain objects and/or light sources. Radiance functions or visibility functions may further be represented by scaling of spherical harmonics functions in the spherical harmonics domain. For example, scaling of spherical harmonics coefficients corresponding to a spherical function may be performed based on a spherical harmonics scaling transformation matrix based on an angular scaling function.
摘要翻译：提供了一种用于提供场景的全局照明的方法，装置和系统。例如，可以在可以包含对象和/或光源的渲染的三维图像中提供全局照明。亮度函数或可见度函数可以进一步通过球面谐波域中的球谐函数的缩放来表示。例如，可以基于基于角度缩放函数的球面谐波缩放变换矩阵来执行对应于球面函数的球谐函数的缩放。

2. 发明申请

US20080143719A1 SPHERICAL HARMONICS SCALING 有权
标题翻译：球形谐波缩放
公开(公告)号：US20080143719A1
公开(公告)日：2008-06-19
申请号：US11612394
申请日：2006-12-18
申请人： Kun Zhou , Jiaping Wang , Stephen Lin , Baining Guo
发明人： Kun Zhou , Jiaping Wang , Stephen Lin , Baining Guo
IPC分类号： G06T15/50
CPC分类号： G06T15/55
摘要： A method, device and system is provided for providing global illumination of a scene. For example, global illumination may be provided in a rendered 3-dimensional image that may contain objects and/or light sources. Radiance functions or visibility functions may further be represented by scaling of spherical harmonics functions in the spherical harmonics domain. For example, scaling of spherical harmonics coefficients corresponding to a spherical function may be performed based on a spherical harmonics scaling transformation matrix based on an angular scaling function.
摘要翻译：提供了一种用于提供场景的全局照明的方法，装置和系统。例如，可以在可以包含对象和/或光源的渲染的三维图像中提供全局照明。亮度函数或可见度函数可以进一步通过球面谐波域中的球谐函数的缩放来表示。例如，可以基于基于角度缩放函数的球面谐波缩放变换矩阵来执行对应于球面函数的球谐函数的缩放。

3. 发明申请

US20100085360A1 RENDERING IN SCATTERING MEDIA 审中-公开
标题翻译：渲染散文媒体
公开(公告)号：US20100085360A1
公开(公告)日：2010-04-08
申请号：US12245708
申请日：2008-10-04
申请人： Zhong Ren , Kun Zhou , Stephen Lin , Baining Guo
发明人： Zhong Ren , Kun Zhou , Stephen Lin , Baining Guo
IPC分类号： G06T15/50
CPC分类号： G06T15/50
摘要： Techniques are described for rendering a volume of scattering media, in particular by computing radiances of points or voxels in the scattering media. A set of sample points in the scattering media are found. Radiances of the sample points are computed. Radiance gradients of the sample points are computed from the radiances. The radiances and gradients are used to interpolate radiances throughout the scattering media. The set of sample points may be computed in an iterative dynamic manner in order to concentrate samples near features (e.g., shadow edges) of the scattering media.
摘要翻译：描述了用于渲染体积的散射介质的技术，特别是通过计算散射介质中的点或体素的辐射。发现散射介质中的一组采样点。计算采样点的辐射。采样点的辐射梯度由辐射计算。辐射和梯度用于在整个散射介质中内插辐射。可以以迭代动态方式计算采样点集合，以便将样本集中在散射介质的特征（例如，阴影边缘）附近。

4. 发明申请

US20060279570A1 Pre-computed shadow fields 失效
公开(公告)号：US20060279570A1
公开(公告)日：2006-12-14
申请号：US11147921
申请日：2005-06-08
申请人： Kun Zhou , Yaohua Hu , Stephen Lin , Baining Guo , Heung-Yeung Shum
发明人： Kun Zhou , Yaohua Hu , Stephen Lin , Baining Guo , Heung-Yeung Shum
IPC分类号： G06T15/50
CPC分类号： G06T15/60
摘要： Pre-computed shadow fields are described. In one aspect, shadow fields for multiple entities are pre-computed. The shadow fields are pre-computed independent of scene configuration. The multiple entities include at least one occluding object and at least one light source. A pre-computed shadow field for a light source indicates radiance from the light source. A pre-computed shadow field for an occluding object indicates occlusion of radiance from the at least one light source.

5. 发明授权

US08963918B2 Ray tracing on graphics hardware using kd-trees 有权
标题翻译：使用kd-tree对图形硬件进行光线跟踪
公开(公告)号：US08963918B2
公开(公告)日：2015-02-24
申请号：US12241044
申请日：2008-09-30
申请人： Kun Zhou , Hou Qiming , Baining Guo
发明人： Kun Zhou , Hou Qiming , Baining Guo
IPC分类号： G06T15/00 , G06T15/06 , G06T17/00
CPC分类号： G06T15/06 , G06T17/005
摘要： Described is a technology by which a ray tracer incorporates a GPU-based kd-tree builder for rendering arbitrary dynamic scenes. For each frame, the ray tracer builds a kd-tree for the scene geometry. The ray tracer spawns and traces eye rays, reflective and refractive rays, and shadow rays. For each ray to be traced, the ray tracer walks through the kd-tree until it reaches leaf nodes and associated triangles. When a ray passes through both sides of a splitting plane, the “far” sub-tree is pushed into the stack and the “near” sub-tree is traversed first.
摘要翻译：描述了一种技术，通过该技术，射线跟踪器结合了用于渲染任意动态场景的基于GPU的kd-tree构建器。对于每个帧，光线跟踪器为场景几何构建一个kd-tree。射线追踪器产生并追踪眼睛的光线，反射和折射光线以及阴影线。对于要跟踪的每条光线，光线跟踪器穿过kd树，直到它到达叶节点和相关联的三角形。当光线穿过分裂平面的两侧时，“远”子树被推入堆叠中，并且首先遍历“近”子树。

6. 发明授权

US08866827B2 Bulk-synchronous graphics processing unit programming 有权
标题翻译：批量同步图形处理单元编程
公开(公告)号：US08866827B2
公开(公告)日：2014-10-21
申请号：US12146715
申请日：2008-06-26
申请人： Kun Zhou , Hou Qiming , Baining Guo
发明人： Kun Zhou , Hou Qiming , Baining Guo
IPC分类号： G06T1/00 , G06F9/45 , G06F9/44 , G06F9/52
CPC分类号： G06F8/447 , G06F8/31 , G06F9/522
摘要： Described is a technology in a computing environment comprising a programming language for general purpose computation on a graphics processing unit (GPU), along with an associated compiler. A Bulk-Synchronous GPU Programming (BSGP) program is programmed to include barriers to describe parallel processing on GPUs. A BSGP compiler detects barriers corresponding to supersteps, converts BSGP programs to kernels based on the barriers, and combines them. During compilation, the compiler aligns barriers in the statements and bundles the corresponding supersteps together. A par construct is provided to allow the programmer to control aspects of bundling, e.g., by specifying a block independent statements. Thread manipulation emulation is provided to transparently emulate thread creation and destruction, with operations fork and kill. Also provided is remote variable access intrinsics for efficient communications between threads, and collective primitive operations.
摘要翻译：描述了一种计算环境中的技术，包括用于图形处理单元（GPU）上的通用计算的编程语言以及相关联的编译器。批量同步GPU编程（BSGP）程序被编程为包括描述GPU上的并行处理的障碍。 BSGP编译器检测与超级步骤相对应的障碍，基于障碍将BSGP程序转换为内核，并将其组合。在编译期间，编译器将语句中的障碍放在一起，并将相应的超级步骤捆绑在一起。提供了一个参考构造以允许程序员控制捆绑的方面，例如通过指定块独立语句。线程处理仿真被提供以透明地模拟线程的创建和破坏，与操作fork和kill。还提供了用于线程之间有效通信的远程变量访问内在函数和集合原语操作。

7. 发明授权

US08749543B2 Three dimensional polygon mesh deformation using subspace energy projection 有权
标题翻译：使用子空间能量投影的三维多边形网格变形
公开(公告)号：US08749543B2
公开(公告)日：2014-06-10
申请号：US11464721
申请日：2006-08-15
申请人： Jin Huang , Xiaohan Shi , Xinguo Liu , Kun Zhou , Li-Yi Wei , Baining Guo , Heung-Yeung Shum
发明人： Jin Huang , Xiaohan Shi , Xinguo Liu , Kun Zhou , Li-Yi Wei , Baining Guo , Heung-Yeung Shum
IPC分类号： G06T15/00 , G06T17/00 , G06T13/00 , G09G5/00
CPC分类号： G06T17/20 , G06T13/00
摘要： A computer implemented method for deforming a 3D polygon mesh using non-linear and linear constraints. The method includes creating a coarse control 3D polygon mesh that completely encapsulates the 3D polygon mesh to be deformed, projecting the deformation energy of the 3D polygon mesh and the constraints of the 3D polygon mesh to the vertices, or subspace, of the coarse control 3D polygon mesh, and determining the resulting deformed 3D polygon mesh by iteratively determining the deformation energy of the subspace. The constraints may be either linear or non-linear constraints, for example, a Laplacian constraint, a position constraint, a projection constraint, a skeleton constraint, or a volume constraint.
摘要翻译：一种用于使用非线性和线性约束来变形3D多边形网格的计算机实现的方法。该方法包括创建完全封装要变形的3D多边形网格的粗略控制3D多边形网格，将3D多边形网格的变形能量和3D多边形网格的约束投射到粗略控制3D的顶点或子空间多边形网格，并且通过迭代地确定子空间的变形能量来确定产生的变形的3D多边形网格。约束可以是线性或非线性约束，例如拉普拉斯约束，位置约束，投影约束，骨架约束或体积约束。

8. 发明授权

US08346002B2 High dynamic range image hallucination 有权
标题翻译：高动态范围图像幻象
公开(公告)号：US08346002B2
公开(公告)日：2013-01-01
申请号：US11781227
申请日：2007-07-20
申请人： Li-Yi Wei , Kun Zhou , Baining Guo , Heung-Yeung Shum , Lvdi Wang
发明人： Li-Yi Wei , Kun Zhou , Baining Guo , Heung-Yeung Shum , Lvdi Wang
IPC分类号： G06K9/00
CPC分类号： G06T5/008
摘要： An apparatus and method provide for providing an output image from an input image. The input image may contain at least one portion that does not display certain desired information of the image, such as texture information. The desired information may be obtained from a second portion of the input image and applied to the at least one portion that does not contain the texture information or contains a diminished amount of the texture information. Also, at least one characteristic of the second portion of the input image may not be applied to the at least one portion such as illumination information. In another example, the input image may be decomposed into multiple parts such as a high frequency and a low frequency component. Each component may be hallucinated individually or independently and combined to form the output image.
摘要翻译：一种设备和方法提供从输入图像提供输出图像。输入图像可以包含不显示图像的某些所需信息的至少一个部分，例如纹理信息。可以从输入图像的第二部分获得期望的信息，并将其应用于不包含纹理信息的至少一个部分或者包含纹理信息的减少量。此外，输入图像的第二部分的至少一个特征可以不被应用于诸如照明信息的至少一个部分。在另一示例中，输入图像可以被分解成多个部分，例如高频和低频分量。每个组件可以单独地或独立地幻影，并组合以形成输出图像。

9. 发明申请

US20090322769A1 BULK-SYNCHRONOUS GRAPHICS PROCESSING UNIT PROGRAMMING 有权
标题翻译：大容量图形处理单元编程
公开(公告)号：US20090322769A1
公开(公告)日：2009-12-31
申请号：US12146715
申请日：2008-06-26
申请人： Kun Zhou , Hou Qiming , Baining Guo
发明人： Kun Zhou , Hou Qiming , Baining Guo
IPC分类号： G06T1/00
CPC分类号： G06F8/447 , G06F8/31 , G06F9/522
摘要： Described is a technology in a computing environment comprising a programming language for general purpose computation on a graphics processing unit (GPU), along with an associated compiler. A Bulk-Synchronous GPU Programming (BSGP) program is programmed to include barriers to describe parallel processing on GPUs. A BSGP compiler detects barriers corresponding to supersteps, converts BSGP programs to kernels based on the barriers, and combines them. During compilation, the compiler aligns barriers in the statements and bundles the corresponding supersteps together. A par construct is provided to allow the programmer to control aspects of bundling, e.g., by specifying a block independent statements. Thread manipulation emulation is provided to transparently emulate thread creation and destruction, with operations fork and kill. Also provided is remote variable access intrinsics for efficient communications between threads, and collective primitive operations.
摘要翻译：描述了一种计算环境中的技术，包括用于图形处理单元（GPU）上的通用计算的编程语言以及相关联的编译器。批量同步GPU编程（BSGP）程序被编程为包括描述GPU上的并行处理的障碍。 BSGP编译器检测与超级步骤相对应的障碍，基于障碍将BSGP程序转换为内核，并将其组合。在编译期间，编译器将语句中的障碍放在一起，并将相应的超级步骤捆绑在一起。提供了一个参考构造以允许程序员控制捆绑的方面，例如通过指定块独立语句。线程处理仿真被提供以透明地模拟线程的创建和破坏，与操作fork和kill。还提供了用于线程之间有效通信的远程变量访问内在函数和集合原语操作。

10. 发明申请

US20090006052A1 Real-Time Rendering of Light-Scattering Media 有权
标题翻译：光散射介质的实时渲染
公开(公告)号：US20090006052A1
公开(公告)日：2009-01-01
申请号：US11770974
申请日：2007-06-29
申请人： Kun Zhou , Qiming Hou , Minmin Gong , John Michael Snyder , Baining Guo , Heung-Yeung Shum
发明人： Kun Zhou , Qiming Hou , Minmin Gong , John Michael Snyder , Baining Guo , Heung-Yeung Shum
IPC分类号： G06G7/48
CPC分类号： G06T15/50
摘要： A real-time algorithm for rendering of an inhomogeneous scattering medium such as fog with a surface object immersed therein is described. An input media animation is represented as a sequence of density fields. The algorithm computes surface reflectance of the surface object in the inhomogeneous scattering medium. The algorithm may also compute airlight of the inhomogeneous scattering medium. Several approximations are taken which lead to analytical solutions of quantities such as optical depth integrations and single scattering integrations, and a reduced number of integrations that need to be calculated. The resultant algorithm is able to render inhomogeneous media including their shadowing and scattering effects in the real time. The algorithm may be adopted for a variety of light sources including point lights and environmental lights.
摘要翻译：描述了用于渲染非均匀散射介质（例如，其中浸入表面物体的雾）的实时算法。输入媒体动画被表示为一系列密度字段。该算法计算非均匀散射介质中表面物体的表面反射率。该算法还可以计算不均匀散射介质的空气光。采用几种近似方法，其导致诸如光学深度积分和单一散射积分的量的分析解，以及需要计算的减少的积分数。所得到的算法能够实时渲染包括它们的阴影和散射效果的非均匀介质。该算法可以用于各种光源，包括点光源和环境光源。

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