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11. 发明申请

US20090006046A1 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：US20090006046A1
公开(公告)日：2009-01-01
申请号：US11830743
申请日：2007-07-30
申请人： Kun Zhou , Zhong Ren , Stephen Ssu-te Lin , Baining Guo , Heung-Yeung Shum
发明人： Kun Zhou , Zhong Ren , Stephen Ssu-te Lin , Baining Guo , Heung-Yeung Shum
IPC分类号： G06F17/10
CPC分类号： G06T15/55
摘要： A real-time algorithm for rendering of an inhomogeneous scattering media such as smoke under dynamic low-frequency environment lighting is described. An input media animation is represented as a sequence of density fields, each of which is represented by an approximate model density field and a residual density field. The algorithm uses the approximate model density field to compute an approximate source radiance, and further computes an effective exitant radiance by compositing the approximate source radiance using a compositing methods such as ray marching. During the compositing process (e.g., ray marching), the residual field is compensated back into the radiance integral to generate images of higher detail.
摘要翻译：描述了在动态低频环境照明下渲染非均匀散射介质（如烟雾）的实时算法。输入媒体动画被表示为密度域序列，每个密度场由近似模型密度场和残余密度域表示。该算法使用近似模型密度场来计算近似辐射源，并且通过使用诸如射线行进之类的合成方法合成近似源辐射来进一步计算有效的出射辐射度。在合成过程（例如，射线行进）期间，残余场被补偿回到辐射积分中以产生更高细节的图像。

12. 发明申请

US20090006044A1 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：US20090006044A1
公开(公告)日：2009-01-01
申请号：US11768894
申请日：2007-06-26
申请人： Kun Zhou , Zhong Ren , Stephen Ssu-te Lin , Baining Guo , Heung-Yeung Shum
发明人： Kun Zhou , Zhong Ren , Stephen Ssu-te Lin , Baining Guo , Heung-Yeung Shum
IPC分类号： G06F17/10
CPC分类号： G06T15/55
摘要： A real-time algorithm for rendering of an inhomogeneous scattering media such as smoke under dynamic low-frequency environment lighting is described. An input media animation is represented as a sequence of density fields, each of which is decompressed into a weighted sum of a set of radial basis functions (RBFs) and an optional residual field. Source radiances from single and optionally multiple scattering are directly computed at only the RBF centers and then approximated at other points in the volume using an RBF-based interpolation. Using the computed source radiances, a ray marching technique using slice-based integration of radiance along each viewing ray is performed to render the final image. During the ray marching process, the residual field may be compensated back into the radiance integral to generate images of higher detail.
摘要翻译：描述了在动态低频环境照明下渲染非均匀散射介质（如烟雾）的实时算法。输入媒体动画被表示为密度字段序列，每个密度字段被解压缩成一组径向基函数（RBF）和可选残余字段的加权和。仅从RBF中心直接计算来自单个和任选多个散射的源辐射，然后使用基于RBF的插值在体积中的其他点处近似。使用计算的源辐射，执行使用沿着每个观察射线的基于片段的辐射积分的射线行进技术来渲染最终图像。在射线行进过程中，残余场可以被补偿回到辐射积分中以产生更高细节的图像。

13. 发明申请

US20080316202A1 DIRECT MANIPULATION OF SUBDIVISION SURFACES USING A GRAPHICS PROCESSING UNIT 失效
标题翻译：使用图形处理单元直接操纵子表面
公开(公告)号：US20080316202A1
公开(公告)日：2008-12-25
申请号：US11767427
申请日：2007-06-22
申请人： Kun Zhou , Heung-Yeung Shum , Baining Guo , Xin Huang , Weiwei Xu
发明人： Kun Zhou , Heung-Yeung Shum , Baining Guo , Xin Huang , Weiwei Xu
IPC分类号： G06T15/00
CPC分类号： G06T17/20
摘要： A graphics system allows for manipulation of a detail mesh for a subdivision surface. To deform the subdivision surface, the graphics system generates a corresponding deformed control mesh by attempting to satisfy both position constraints of the manipulation and Laplacian constraints for the detail mesh. After the deformed control mesh is generated, the deformed detail mesh can be generated by applying a subdivision function to the deformed control mesh to generate a deformed smooth mesh and then applying detail information to the deformed smooth mesh.
摘要翻译：图形系统允许操纵细分表面的细节网格。为了使细分表面变形，图形系统通过尝试满足操作的位置约束和细节网格的拉普拉斯约束来生成相应的变形控制网格。在生成变形控制网格之后，可以通过对变形的控制网格应用细分功能来生成变形的细节网格，以生成变形的平滑网格，然后将细节信息应用于变形的平滑网格。

14. 发明授权

US07286127B2 Large mesh deformation using the volumetric graph Laplacian 有权
标题翻译：使用体积图拉普拉斯算子的大网格变形
公开(公告)号：US07286127B2
公开(公告)日：2007-10-23
申请号：US11158428
申请日：2005-06-22
申请人： Kun Zhou , John Michael Snyder , Xinguo Liu , Baining Guo , Heung-Yeung Shum
发明人： Kun Zhou , John Michael Snyder , Xinguo Liu , Baining Guo , Heung-Yeung Shum
IPC分类号： G06T15/00
CPC分类号： G06T17/20 , G06T13/20
摘要： Large mesh deformation using the volumetric graph Laplacian is described. In one aspect, information is received from a user, wherein the information indicates how an original mesh is to be deformed. The original mesh is then deformed based on the information and application of a volumetric differential operator to a volumetric graph generated from the original mesh.
摘要翻译：描述了使用体积图拉普拉斯算子的大网格变形。在一个方面，从用户接收信息，其中信息指示原始网格如何变形。然后将原始网格基于体积差分算子的信息和应用变形为从原始网格生成的体积图。

15. 发明申请

US20060028481A1 Synthesis of progressively-variant textures and application to arbitrary surfaces 有权
公开(公告)号：US20060028481A1
公开(公告)日：2006-02-09
申请号：US11240878
申请日：2005-09-30
申请人： Jingdan Zhang , Kun Zhou , Baining Guo , Heung-Yeung Shum
发明人： Jingdan Zhang , Kun Zhou , Baining Guo , Heung-Yeung Shum
IPC分类号： G09G5/00
CPC分类号： G06T11/001
摘要： Methods for synthesizing progressively-variant textures based on texton masks are provided. A first method creates a synthesized texture image guided by a sample texture, first texton mask corresponding to the sample texture and a second texton mask modified based on the first texton mask. A second method also creates a synthesized texture image guided by a first and second sample textures and corresponding first and second texton masks. A method for rendering a synthesized texture on an image of a three-dimensional object includes creating a synthesized texture on the object guided by a two-dimensional progressively-variant sample texture, a texton mask for the sample texture and a mesh of a plurality of vertices representing the object.

16. 发明授权

US08082129B2 Real-time rendering of light-scattering media 有权
公开(公告)号：US08082129B2
公开(公告)日：2011-12-20
申请号：US11830794
申请日：2007-07-30
申请人： Kun Zhou , Zhong Ren , Stephen Ssu-te Lin , Baining Guo , Heung-Yeung Shum
发明人： Kun Zhou , Zhong Ren , Stephen Ssu-te Lin , Baining Guo , Heung-Yeung Shum
IPC分类号： G06F17/10
摘要： A real-time algorithm for rendering of an inhomogeneous scattering media such as smoke under dynamic low-frequency environment lighting is described. An input media animation is represented as a sequence of density fields, each of which is decomposed into a weighted sum of a set of radial basis functions (RBFs) and an optional residual field. Source radiances from single and optionally multiple scattering are directly computed at only the RBF centers and then approximated at other points in the volume using an RBF-based interpolation. Unique approximation techniques are introduced in the computational algorithms to simplify and speed up the computation of source radiance contributed by single and multiple scattering. Using the computed source radiances, a ray marching technique using slice-based integration of radiance along each viewing ray may be performed to render the final image.

17. 发明授权

US07800627B2 Mesh quilting for geometric texture synthesis 有权
标题翻译：网格绗缝几何纹理合成
公开(公告)号：US07800627B2
公开(公告)日：2010-09-21
申请号：US11760607
申请日：2007-06-08
申请人： Kun Zhou , Xin Huang , Xi Wang , Baining Guo , Heung-Yeung Shum
发明人： Kun Zhou , Xin Huang , Xi Wang , Baining Guo , Heung-Yeung Shum
IPC分类号： G09G5/00 , G06T17/00 , G06F15/00
CPC分类号： G06T15/04
摘要： Mesh quilting for geometric texture synthesis involves synthesizing a geometric texture by quilting a mesh texture swatch. In an example embodiment, geometry is matched between a mesh texture swatch and a portion of a synthesized geometric texture. Correspondences are ascertained between elements of the mesh texture swatch and the portion of the synthesized geometric texture. The ascertained corresponding elements of the mesh texture swatch and the portion of the synthesized geometric texture are aligned via local deformation to create a new patch. The new patch is merged into an output texture space to grow the synthesized geometric texture.
摘要翻译：用于几何纹理合成的网格绗缝涉及通过绗缝网格纹理样本来合成几何纹理。在示例实施例中，几何在网格纹理样本和合成几何纹理的一部分之间进行匹配。在网格纹理样本的元素和合成的几何纹理的部分之间确定对应关系。确定的网格纹理样本的对应元素和合成的几何纹理的部分通过局部变形对齐，以创建新的补丁。新的补丁被合并到输出纹理空间中，以增加合成的几何纹理。

18. 发明申请

US20090006047A1 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：US20090006047A1
公开(公告)日：2009-01-01
申请号：US11830794
申请日：2007-07-30
申请人： Kun Zhou , Zhong Ren , Stephen Ssu-te Lin , Baining Guo , Heung-Yeung Shum
发明人： Kun Zhou , Zhong Ren , Stephen Ssu-te Lin , Baining Guo , Heung-Yeung Shum
IPC分类号： G06F17/10
CPC分类号： G06T15/55
摘要： A real-time algorithm for rendering of an inhomogeneous scattering media such as smoke under dynamic low-frequency environment lighting is described. An input media animation is represented as a sequence of density fields, each of which is decomposed into a weighted sum of a set of radial basis functions (RBFs) and an optional residual field. Source radiances from single and optionally multiple scattering are directly computed at only the RBF centers and then approximated at other points in the volume using an RBF-based interpolation. Unique approximation techniques are introduced in the computational algorithms to simplify and speed up the computation of source radiance contributed by single and multiple scattering. Using the computed source radiances, a ray marching technique using slice-based integration of radiance along each viewing ray may be performed to render the final image.
摘要翻译：描述了在动态低频环境照明下渲染非均匀散射介质（如烟雾）的实时算法。输入媒体动画被表示为密度字段序列，每个密度字段被分解成一组径向基函数（RBF）和可选残余字段的加权和。仅从RBF中心直接计算来自单个和任选多个散射的源辐射，然后使用基于RBF的插值在体积中的其他点处近似。在计算算法中引入了独特的近似技术，以简化和加快由单次和多次散射贡献的源辐射的计算。使用计算的源辐射，可以执行使用沿着每个观察射线的基于片段的辐射积分的射线行进技术来渲染最终图像。

19. 发明申请

US20080303840A1 Mesh Quilting for Geometric Texture Synthesis 有权
标题翻译：网纹绗缝几何纹理合成
公开(公告)号：US20080303840A1
公开(公告)日：2008-12-11
申请号：US11760607
申请日：2007-06-08
申请人： Kun Zhou , Xin Huang , Xi Wang , Baining Guo , Heung-Yeung Shum
发明人： Kun Zhou , Xin Huang , Xi Wang , Baining Guo , Heung-Yeung Shum
IPC分类号： G09G5/00 , G06T17/00
CPC分类号： G06T15/04
摘要： Mesh quilting for geometric texture synthesis involves synthesizing a geometric texture by quilting a mesh texture swatch. In an example embodiment, geometry is matched between a mesh texture swatch and a portion of a synthesized geometric texture. Correspondences are ascertained between elements of the mesh texture swatch and the portion of the synthesized geometric texture. The ascertained corresponding elements of the mesh texture swatch and the portion of the synthesized geometric texture are aligned via local deformation to create a new patch. The new patch is merged into an output texture space to grow the synthesized geometric texture.
摘要翻译：用于几何纹理合成的网格绗缝涉及通过绗缝网格纹理样本来合成几何纹理。在示例实施例中，几何在网格纹理样本和合成几何纹理的一部分之间进行匹配。在网格纹理样本的元素和合成的几何纹理的部分之间确定对应关系。确定的网格纹理样本的对应元素和合成的几何纹理的部分通过局部变形对齐，以创建新的补丁。新的补丁被合并到输出纹理空间中，以增加合成的几何纹理。

20. 发明申请

US20080043021A1 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：US20080043021A1
公开(公告)日：2008-02-21
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： 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。

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