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31. 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。

32. 发明授权

US08243071B2 Modeling and rendering of heterogeneous translucent materials using the diffusion equation 有权
标题翻译：使用扩散方程建模和渲染异质半透明材料
公开(公告)号：US08243071B2
公开(公告)日：2012-08-14
申请号：US12072925
申请日：2008-02-29
申请人： Jiaping Wang , Xin Tong , Stephen S. Lin , Baining Guo , Heung-Yeung Shum , Zhouchen Lin
发明人： Jiaping Wang , Xin Tong , Stephen S. Lin , Baining Guo , Heung-Yeung Shum , Zhouchen Lin
IPC分类号： G06T15/00 , G06T15/60 , G06K9/00
CPC分类号： G06T15/506 , G01N21/47 , G01N21/4738 , G06T15/50
摘要： An exemplary method includes providing image data for an illuminated physical sample of a heterogeneous translucent material, determining one or more material properties of the material based in part on a diffusion equation where one of the material properties is a diffusion coefficient for diffusion of radiation in the material and where the determining includes a regularization term for the diffusion coefficient, mapping the one or more material properties to a virtual object volume, assigning virtual illumination conditions to the virtual object volume, and rendering the virtual object volume using the virtual illumination conditions as a boundary condition for a system of diffusion equations of the virtual object volume. Other methods, devices and systems are also disclosed.
摘要翻译：一种示例性方法包括提供用于异质半透明材料的照明物理样品的图像数据，部分地基于扩散方程来确定材料的一种或多种材料性质，其中材料性质之一是用于辐射的扩散的扩散系数材料，并且其中确定包括扩散系数的正则化术语，将一个或多个材料属性映射到虚拟对象体积，将虚拟照明条件分配给虚拟对象体积，以及使用虚拟照明条件将虚拟对象体积呈现为虚拟物体体积扩散方程组的边界条件。还公开了其它方法，装置和系统。

33. 发明授权

US07933442B2 Appearance manifolds for modeling time-variant appearance of materials 有权
标题翻译：外观歧管用于建模材料的时变外观
公开(公告)号：US07933442B2
公开(公告)日：2011-04-26
申请号：US11694840
申请日：2007-03-30
申请人： Jiaping Wang , Xin Tong , Stephen Lin , Baining Guo , Heung-Yeung Shum
发明人： Jiaping Wang , Xin Tong , Stephen Lin , Baining Guo , Heung-Yeung Shum
IPC分类号： G06K9/00
CPC分类号： G06T19/00 , G06T13/00 , G06T2210/64
摘要： A method for modeling a time-variant appearance of a material is described. A sample analysis of a material sample is performed, wherein the sample analysis orders surface points of the material sample with respect to weathering from data captured at a single instant in time. An appearance synthesis using the sample analysis is performed, wherein the appearance synthesis generates a time-variant sequence of frames for weathering an object.
摘要翻译：描述了用于对材料的时变外观进行建模的方法。进行材料样品的样品分析，其中样品分析根据在单个时刻捕获的数据对材料样品的表面点进行排序。执行使用样本分析的外观合成，其中外观合成生成用于风化对象的帧的时变序列。

34. 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。

35. 发明授权

US07283140B2 Texture montage 有权
标题翻译：纹理蒙太奇
公开(公告)号：US07283140B2
公开(公告)日：2007-10-16
申请号：US11157657
申请日：2005-06-21
申请人： Kun Zhou , Xi Wang , Baining Guo , Heung-Yeung Shum
发明人： Kun Zhou , Xi Wang , Baining Guo , Heung-Yeung Shum
IPC分类号： G09G5/00 , G06K9/36 , G06T15/00 , G06T15/30
CPC分类号： G06T15/04
摘要： Texture montage is described. In one aspect, feature correspondences are received. The feature correspondences map at least one region on a 3-D mesh to at least one region on an image of one or more images. Each of the images provides texture information. An atlas of texture patches is created based on the feature correspondences. The atlas of texture patches provides for rendering texture from the images onto the 3-D mesh.
摘要翻译：纹理蒙太奇被描述。在一个方面，接收到特征对应。特征对应将三维网格上的至少一个区域映射到一个或多个图像的图像上的至少一个区域。每个图像提供纹理信息。基于特征对应创建纹理补丁的图集。纹理贴图的图集用于将图像中的纹理渲染到3-D网格上。

36. 发明申请

US20060284880A1 Texture montage 有权
标题翻译：纹理蒙太奇
公开(公告)号：US20060284880A1
公开(公告)日：2006-12-21
申请号：US11157657
申请日：2005-06-21
申请人： Kun Zhou , Xi Wang , Baining Guo , Heung-Yeung Shum
发明人： Kun Zhou , Xi Wang , Baining Guo , Heung-Yeung Shum
IPC分类号： G09G5/00
CPC分类号： G06T15/04
摘要： Texture montage is described. In one aspect, feature correspondences are received. The feature correspondences map at least one region on a 3-D mesh to at least one region on an image of one or more images. Each of the images provides texture information. An atlas of texture patches is created based on the feature correspondences. The atlas of texture patches provides for rendering texture from the images onto the 3-D mesh.
摘要翻译：纹理蒙太奇被描述。在一个方面，接收到特征对应。特征对应将三维网格上的至少一个区域映射到一个或多个图像的图像上的至少一个区域。每个图像提供纹理信息。基于特征对应创建纹理补丁的图集。纹理贴图的图集用于将图像中的纹理渲染到3-D网格上。

37. 发明授权

US07129944B2 Macrostructure modeling with microstructure reflectance slices 有权
公开(公告)号：US07129944B2
公开(公告)日：2006-10-31
申请号：US11000607
申请日：2004-12-01
申请人： Baining Guo , Stephen S. Lin , Heung-Yeung Shum , Ying-Qing Xu , Yanyun Chen
发明人： Baining Guo , Stephen S. Lin , Heung-Yeung Shum , Ying-Qing Xu , Yanyun Chen
IPC分类号： G06T15/60
CPC分类号： G06T15/50 , G06T15/00 , G06T17/00 , G06T2210/16 , G06T2210/62
摘要： A method and system for efficient synthesis of photorealistic free-form knitwear, where a single cross-section of yarn serves as the basic primitive for modeling entire articles of knitwear. This primitive, called the lumislice, describes radiance from a yarn cross-section based on fine-level interactions, including occlusion, shadowing, and multiple scattering, among yarn fibers. By representing yarn as a sequence of identical but rotated cross-sections, the lumislice can effectively propagate local microstructure over arbitrary stitch patterns and knitwear shapes. This framework accommodates varying levels of detail and capitalizes on hardware-assisted transparency blending. To further enhance realism, a technique for generating soft shadows from yarn is also introduced.

38. 发明授权

US07042456B2 Modeling and rendering of realistic feathers 失效
标题翻译：真实羽毛的建模和渲染
公开(公告)号：US07042456B2
公开(公告)日：2006-05-09
申请号：US10623425
申请日：2003-07-18
申请人： Yanyun Chen , Baining Guo , Ying-Qing Xu , Heung-Yeung Shum
发明人： Yanyun Chen , Baining Guo , Ying-Qing Xu , Heung-Yeung Shum
IPC分类号： G09G5/00 , G06F15/167
CPC分类号： G06T17/20 , G06T15/10
摘要： The present invention provides a systematic method for rendering feathers. In one aspect, a segment of a rachis having a first barb and second barb is generated. The first barb is generated based on a first barb length and the second barb is generated based on a second barb length.
摘要翻译：本发明提供了一种用于渲染羽毛的系统方法。在一个方面，产生具有第一倒钩和第二倒钩的轴的段。基于第一倒钩长度产生第一倒钩，并且基于第二倒钩长度产生第二倒钩。

39. 发明申请

US20060028468A1 Shell texture functions 失效
标题翻译： Shell纹理功能
公开(公告)号：US20060028468A1
公开(公告)日：2006-02-09
申请号：US10898435
申请日：2004-07-23
申请人： Yanyun Chen , Xin Tong , Stephen Lin , Baining Guo , Heung-Yeung Shum
发明人： Yanyun Chen , Xin Tong , Stephen Lin , Baining Guo , Heung-Yeung Shum
IPC分类号： G06T17/00
CPC分类号： G06T15/04
摘要： Techniques are provided for at least modeling any one of mesostructure shadowing, masking, interreflection and silhouettes on a surface, as well as subsurface scattering within a non-homogeneous volume. Such techniques include, at least, acquiring material parameters for a material sample, determining irradiance distribution values for the material sample, synthesizing the material sample onto a mesh of an object. The synthesized object may then be rendered by one of plural rendering techniques.
摘要翻译：提供技术用于至少建模表面上的任何一种介观结构阴影，掩模，反射和剪影，以及非均匀体积内的地下散射。这些技术至少包括获取材料样品的材料参数，确定材料样品的辐照度分布值，将材料样品合成到物体的网格上。然后可以通过多个渲染技术之一来呈现合成对象。

40. 发明申请

US20050280648A1 Optimizing real-time rendering of texture mapped object models relative to adjustable distortion thresholds 有权
标题翻译：优化纹理映射对象模型相对于可调失真阈值的实时渲染
公开(公告)号：US20050280648A1
公开(公告)日：2005-12-22
申请号：US10990244
申请日：2004-11-15
申请人： Xi Wang , Xin Tong , Stephen Lin , Baining Guo , Heung-Yeung Shum
发明人： Xi Wang , Xin Tong , Stephen Lin , Baining Guo , Heung-Yeung Shum
IPC分类号： G06T15/20 , G06T15/50 , G06T15/60 , G06T17/00 , G09G5/00
CPC分类号： G06T15/04
摘要： A “mesostructure renderer” uses pre-computed multi-dimensional “generalized displacement maps” (GDM) to provide real-time rendering of general non-height-field mesostructures on both open and closed surfaces of arbitrary geometry. In general, the GDM represents the distance to solid mesostructure along any ray cast from any point within a volumetric sample. Given the pre-computed GDM, the mesostructure renderer then computes mesostructure visibility jointly in object space and texture space, thereby enabling both control of texture distortion and efficient computation of texture coordinates and shadowing. Further, in one embodiment, the mesostructure renderer uses the GDM to render mesostructures with either local or global illumination as a per-pixel process using conventional computer graphics hardware to accelerate the real-time rendering of the mesostructures. Further acceleration of mesostructure rendering is achieved in another embodiment by automatically reducing the number of triangles in the rendering pipeline according to a user-specified threshold for acceptable texture distortion.
摘要翻译： “mesostructure渲染器”使用预先计算的多维“广义位移图”（GDM），以便在任意几何的开放和闭合表面上提供一般非高度场介观结构的实时渲染。一般来说，GDM表示沿着体积样品内的任何点的任何射线投射到固体介观结构的距离。给定预先计算的GDM，然后，介观结构渲染器在对象空间和纹理空间中联合计算介观结构可见度，从而实现纹理失真的控制和纹理坐标和阴影的有效计算。此外，在一个实施例中，使用传统计算机图形硬件的介面结构渲染器使用GDM来渲染具有局部或全局照明的介观结构作为每像素处理，以加速介观结构的实时渲染。在另一个实施例中，通过根据用户指定的可接受纹理失真的阈值自动减少渲染流水线中的三角形数量来实现进一步加速的介观结构渲染。

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