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101. 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.

102. 发明授权

US07872653B2 Mesh puppetry 有权
标题翻译：网状木偶
公开(公告)号：US07872653B2
公开(公告)日：2011-01-18
申请号：US11764557
申请日：2007-06-18
申请人： Kun Zhou , Xiaohan Shi , Baining Guo
发明人： Kun Zhou , Xiaohan Shi , Baining Guo
IPC分类号： G06T15/00
CPC分类号： G06T13/40 , G06T17/20 , G06T19/20 , G06T2219/2021
摘要： This disclosure describes a variational framework for detail-preserving skinned mesh manipulation or deformation. The skinned mesh deformation occurs by optimizing skeleton position and vertex weights of a skeletal skinned mesh in an integrated manner. The process allows creating new poses and animations by specifying a few desired constraints for the skeletal skinned mesh in an interactive deformation platform. This process adjusts the skeletal position and solves for a deformed skinned mesh simultaneously with an algorithm in conjunction with the constraints. The algorithm includes a cascading optimization procedure. The mesh puppetry displays skinned mesh manipulation in real-time.The user interface will enable interactive design in creating new poses and animations for a skeletal skinned mesh, enabling direct manipulation of the skeletal skinned mesh to create natural, life-like poses, and providing automatic balancing and most-rigid constraints to create a puppet-like animation.
摘要翻译：本公开描述了用于细节保留皮肤网格操纵或变形的变体框架。通过以一体化的方式优化骨骼皮肤网格的骨架位置和顶点权重，发生皮肤网格变形。该过程允许通过在交互式变形平台中为骨骼皮肤网格指定一些所需的约束来创建新的姿势和动画。该过程调整骨骼位置，并与算法结合约束同时解决变形的皮肤网格。该算法包括级联优化过程。网状木偶实时显示皮肤网格操纵。用户界面将启用交互式设计，为骨骼皮肤网格创建新的姿势和动画，从而直接操纵骨骼皮肤网格以创建自然，生命般的姿势，并提供自动平衡和最严格的约束，以创建木偶 - 喜欢动画。

103. 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。

104. 发明授权

US07610556B2 Dialog manager for interactive dialog with computer user 有权
标题翻译：与计算机用户交互式对话框的对话框管理器
公开(公告)号：US07610556B2
公开(公告)日：2009-10-27
申请号：US10099348
申请日：2002-03-14
申请人： Baining Guo , Bo Zhang , Heung-Yeung Shum
发明人： Baining Guo , Bo Zhang , Heung-Yeung Shum
IPC分类号： G06F3/00
CPC分类号： G10L15/1822 , G10L15/22
摘要： A dialog manager module accesses a dialog model, a discourse model and a domain model to render information to a computer user through the course of a dialog exchange with the computer user. Actions are performed according to a set of rules during the dialog. Each of the rules comprise an action to perform as a function of the current dialog state and a filled form of slots of semantic information of the user input.
摘要翻译：对话管理器模块访问对话模型，话语模型和域模型，以通过与计算机用户进行对话交换的过程向计算机用户呈现信息。在对话期间根据一组规则执行操作。每个规则包括作为当前对话状态的函数执行的动作和用户输入的语义信息的填充形式的槽。

105. 发明授权

US07589725B2 Soft shadows in dynamic scenes 有权
标题翻译：动态场景中的软阴影
公开(公告)号：US07589725B2
公开(公告)日：2009-09-15
申请号：US11478913
申请日：2006-06-30
申请人： John M. Snyder , Peter-Pike J. Sloan , Baining Guo , Kun Zhou , Rui Wang , Xinguo Liu , Zhong Ren , Bo Sun
发明人： John M. Snyder , Peter-Pike J. Sloan , Baining Guo , Kun Zhou , Rui Wang , Xinguo Liu , Zhong Ren , Bo Sun
IPC分类号： G06T15/50
CPC分类号： G06T15/60
摘要： The present soft shadowing technique pre-computes visibility of blockers using a log of a spherical harmonic visibility function. These logs can then be accumulated and exponentiated in real-time to yield the product visibility vector over all the blockers. The product visibility vector is combined with the light intensity and surface reflectance to determine shading at a receiver point in a computer-generated scene.
摘要翻译：目前的软阴影技术使用球面谐波可见度函数的对数来预先计算阻塞者的可视性。这些日志然后可以被实时累积和指数，以产生所有阻塞者的产品可见性向量。产品可见度向量与光强度和表面反射率相结合，以确定计算机生成的场景中的接收点处的阴影。

106. 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。

107. 发明申请

US20090002376A1 Gradient Domain Editing of Animated Meshes 有权
标题翻译：动画网格梯度域编辑
公开(公告)号：US20090002376A1
公开(公告)日：2009-01-01
申请号：US11772001
申请日：2007-06-29
申请人： Weiwei Xu , Kun Zhou , Yizhou Yu , Baining Guo
发明人： Weiwei Xu , Kun Zhou , Yizhou Yu , Baining Guo
IPC分类号： G06T13/00
CPC分类号： G06T13/40
摘要： Gradient domain editing of animated meshes is described. Exemplary systems edit deforming mesh sequences by applying Laplacian mesh editing techniques in the spacetime domain. A user selects relevant frames or handles to edit and the edits are propagated to the entire sequence. For example, if the mesh depicts an animated figure, then user-modifications to position of limbs, head, torso, etc., in one frame are propagated to the entire sequence. In advanced editing modes, a user can reposition footprints over new terrain and the system automatically conforms the walking figure to the new footprints. A user-sketched curve can automatically provide a new motion path. Movements of one animated figure can be transferred to a different figure. Caricature and cartoon special effects are available. The user can also select spacetime morphing to smoothly change the shape and motion of one animated figure into another over a short interval.
摘要翻译：描述动画网格的渐变域编辑。示例性系统通过在时空域中应用拉普拉斯网格编辑技术来编辑变形网格序列。用户选择要编辑的相关帧或句柄，并将编辑传播到整个序列。例如，如果网格描绘了动画人物，则在一个帧中的肢体，头部，躯干等的位置的用户修改被传播到整个序列。在高级编辑模式下，用户可以在新地形上重新定位足迹，系统会自动将走势图符合到新的脚印。用户素描曲线可以自动提供新的运动路径。一个动画人物的动作可以转移到不同的数字。有漫画和卡通特效。用户还可以选择时空变形，以便在短时间间隔内将一个动画人物的形状和运动平滑地改变为另一个。

108. 发明授权

US07379071B2 Geometry-driven feature point-based image synthesis 有权
标题翻译：基于特征点的几何图像合成
公开(公告)号：US07379071B2
公开(公告)日：2008-05-27
申请号：US10684773
申请日：2003-10-14
申请人： Zicheng Liu , Baining Guo , Heung-Yeung Shum , Qingshan Zhang
发明人： Zicheng Liu , Baining Guo , Heung-Yeung Shum , Qingshan Zhang
IPC分类号： G09G5/00
CPC分类号： G06T15/00 , G06T13/40
摘要： A method and system uses geometry-driven feature point analysis to synthesize images including for example facial expressions. Given the feature point positions (geometry) of an expression, the method automatically synthesizes the corresponding expression image, which has photorealistic and natural looking expression details.
摘要翻译：一种方法和系统使用几何驱动的特征点分析来合成包括例如面部表情的图像。给定表达式的特征点位置（几何），该方法自动合成相应的表达图像，其具有逼真的和自然的表达细节。

109. 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。

110. 发明授权

US07266478B2 Knitwear modeling 失效
标题翻译：针织造型
公开(公告)号：US07266478B2
公开(公告)日：2007-09-04
申请号：US10850653
申请日：2004-05-21
申请人： Ying-Qing Xu , Baining Guo , Hua Zhong , Heung-Yeung Shum
发明人： Ying-Qing Xu , Baining Guo , Hua Zhong , Heung-Yeung Shum
IPC分类号： G06F17/50
CPC分类号： D04B37/00
摘要： Knitwear modeling is disclosed. A macrostructure corresponding to a three-dimensional object is generated, based on a stitch pattern and optionally a color pattern. Yarn microstructure is generated and applied to the macrostructure to yield a knitwear model. The stitch positions of the macrostructure can be perturbed to achieve stitch position irregularities. The fluffiness of the yarn microstructure can be controlled. In an alternative embodiment, a two-dimensional knitwear texture is generated, which can then be mapped to a three-dimensional object to yield a knitwear model.
摘要翻译：披露了针织品造型。基于针迹图案和可选的颜色图案，生成对应于三维物体的宏观结构。生产纱线微观结构并应用于宏观结构以产生针织品模型。可以扰动宏观结构的缝合位置以达到缝合位置不规则。可以控制纱线微结构的蓬松性。在替代实施例中，生成二维针织品纹理，然后将其映射到三维对象以产生针织品模型。

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