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91. 发明申请

US20100277477A1 Modeling Anisotropic Surface Reflectance with Microfacet Synthesis 有权
标题翻译：用微流化合成法建模各向异性表面反射
公开(公告)号：US20100277477A1
公开(公告)日：2010-11-04
申请号：US12433910
申请日：2009-05-01
申请人： Jiaping Wang , Shuang Zhao , Xin Tong , John M. Snyder , Baining Guo
发明人： Jiaping Wang , Shuang Zhao , Xin Tong , John M. Snyder , Baining Guo
IPC分类号： G06T15/50
CPC分类号： G06T15/506
摘要： Described is a search technology in which spatially varying anisotropic reflectance is modeled using image data captured from a single view. Reflectance at each point is represented using a microfacet-based Bidirectional Reflectance Distribution Function (BRDF). Modeling processes the image data, which provides a partial normal distribution function (NDF) for each surface point. The NDF at each selected point is completed by texture synthesis using similar, overlapping partial NDFs from other points. Also described is a scanning device that illuminates a sample surface from a two-dimensional set of light directions using a linear array of LEDs moved over a flat sample.
摘要翻译：描述了一种搜索技术，其中使用从单个视图捕获的图像数据来建模空间变化的各向异性反射率。每个点的反射率使用基于微量的基于双向反射分布函数（BRDF）表示。建模处理图像数据，为每个表面点提供部分正态分布函数（NDF）。每个选定点的NDF通过纹理合成完成，使用与其他点相似的，重叠的部分NDF。还描述了使用在扁平样品上移动的LED的线性阵列从二维光方向照射样品表面的扫描装置。

92. 发明授权

US07792188B2 Selecting encoding types and predictive modes for encoding video data 有权
标题翻译：选择用于编码视频数据的编码类型和预测模式
公开(公告)号：US07792188B2
公开(公告)日：2010-09-07
申请号：US11070778
申请日：2005-03-01
申请人： Xin Tong , Xiaochun Nie
发明人： Xin Tong , Xiaochun Nie
IPC分类号： H04B1/66
CPC分类号： H04N19/00 , H04N19/103 , H04N19/105 , H04N19/107 , H04N19/119 , H04N19/136 , H04N19/14 , H04N19/147 , H04N19/176 , H04N19/51 , H04N19/57 , H04N19/593
摘要： In some embodiments, a method of determining encoding type and predictive mode(s) selections for a macroblock of a video frame is provided. In some embodiments, a general method 1) selects the encoding type (16×16 or 4×4) that is initially considered for a macroblock using an encoding type selection algorithm (based on an attribute of the macroblock that is easy to compute), 2) if the 16×16 encoding type is selected in step 1, consider the four 16×16 prediction modes that may be used on the macroblock using conventional methods or an improved 16×16 predictive mode search algorithm based on distortion thresholds, and 3) if the 4×4 encoding type is selected in step 1, select the 4×4 prediction mode to be used for each of the sixteen 4×4 blocks of the macroblock using conventional methods or an improved 4×4 predictive mode search algorithm based on the positional relationships between predictive modes.
摘要翻译：在一些实施例中，提供了确定视频帧的宏块的编码类型和预测模式选择的方法。在一些实施例中，一般方法1）使用编码类型选择算法（基于容易计算的宏块的属性）来选择最初被考虑用于宏块的编码类型（16×16或4×4） 2）如果在步骤1中选择了16×16编码类型，则考虑可以使用传统方法在宏块上使用的四种16×16预测模式或基于失真阈值的改进的16×16预测模式搜索算法，以及3 ）如果在步骤1中选择4×4编码类型，则使用常规方法选择要使用的宏块的十六个4×4块中的每一个的4×4预测模式或基于改进的4×4预测模式搜索算法关于预测模式之间的位置关系。

93. 发明申请

US20100214294A1 METHOD FOR TESSELLATION ON GRAPHICS HARDWARE 审中-公开
标题翻译：图形硬件消除方法
公开(公告)号：US20100214294A1
公开(公告)日：2010-08-26
申请号：US12390328
申请日：2009-02-20
申请人： Chen Li , Jinyu Li , Xin Tong
发明人： Chen Li , Jinyu Li , Xin Tong
IPC分类号： G06T15/50
CPC分类号： G06T17/20
摘要： An exemplary method for tessellating a primitive of a graphical object includes receiving information for a primitive of a graphical object where the information includes vertex information and an edge factor for each edge of the primitive; based on the received information, dividing the primitive into parts where each part corresponds to at least a portion of an edge of the primitive and at least one vertex of the primitive and where each part has an association with the edge factor of the corresponding edge; for each of the parts, executing a geometry shader on a graphics processing unit (GPU) where the executing includes determining barycentric coordinates for a respective part based in part on its associated edge factor; for each of the parts, outputting the barycentric coordinates to a vertex buffer; and generating a tessellated mesh for the primitive based on the vertex information and the barycentric coordinates of the vertex buffer where the generating includes invoking a draw function of the GPU. Other methods, devices and systems are also disclosed.
摘要翻译：用于细分图形对象的原语的示例性方法包括：接收关于图形对象的图元的信息，其中所述信息包括所述图元的每个边缘的顶点信息和边缘因子; 基于所接收的信息，将所述原语划分为每个部分对应于所述图元的边缘的至少一部分和所述图元的至少一个顶点并且每个部分与所述对应边缘的边缘因子具有关联的部分; 对于每个部件，在图形处理单元（GPU）上执行几何着色器，其中所述执行包括：部分地基于其相关联的边缘因子来确定相应零件的重心坐标; 对于每个部件，将重心坐标输出到顶点缓冲器; 以及基于所述顶点信息和所述生成的所述顶点缓冲器的所述重心坐标生成包括调用所述GPU的绘图功能的所述基元生成镶嵌网格。还公开了其它方法，装置和系统。

94. 发明申请

US20100188412A1 CONTENT BASED CACHE FOR GRAPHICS RESOURCE MANAGEMENT 审中-公开
标题翻译：基于内容的图形资源管理缓存
公开(公告)号：US20100188412A1
公开(公告)日：2010-07-29
申请号：US12361216
申请日：2009-01-28
申请人： Chen Li , Jinyu Li , Xin Tong , Barry C. Bond , Gang Chen
发明人： Chen Li , Jinyu Li , Xin Tong , Barry C. Bond , Gang Chen
IPC分类号： G09G5/36
CPC分类号： G06T1/60 , G06F12/0875 , G09G2360/121
摘要： Providing content based cache for graphic resource management is disclosed herein. In some aspects, a portion of a shadow copy of graphics resources is updated from an original copy of the graphics resources when a requested resource is not current. The shadow copy may be dedicated to a graphics processing unit (GPU) while the original copy may be maintained by a central processing unit (CPU). In further aspects, the requested graphics resource in the shadow copy may be compared to a corresponding graphics resource in the original copy when the GPU requests the graphics resource. The comparison may be performed by comparing hashes of each graphics resource and/or by comparing at least a portion of the graphics resources.
摘要翻译：本文公开了提供用于图形资源管理的基于内容的缓存。在一些方面，当所请求的资源不是当前时，图形资源的卷影副本的一部分从图形资源的原始副本被更新。影子副本可以专用于图形处理单元（GPU），而原始副本可以由中央处理单元（CPU）维护。在另外的方面，当GPU请求图形资源时，可将影子副本中所请求的图形资源与原始副本中的对应图形资源进行比较。可以通过比较每个图形资源的哈希和/或通过比较图形资源的至少一部分来执行比较。

95. 发明申请

US20070229502A1 SHELL RADIANCE TEXTURE FUNCTION 有权
标题翻译：壳体辐射纹理功能
公开(公告)号：US20070229502A1
公开(公告)日：2007-10-04
申请号：US11277935
申请日：2006-03-29
申请人： Xin Tong , Yanyun Chen , Baining Guo , Heung-Yeung Shum , Stephen Lin , Ying Song
发明人： Xin Tong , Yanyun Chen , Baining Guo , Heung-Yeung Shum , Stephen Lin , Ying Song
IPC分类号： G06T15/50
CPC分类号： G06T15/55
摘要： A shell radiance texture function (SRTF) is defined to record an outgoing radiance from a base volume of an object to be rendered. Using the SRTF, radiance values are precomputed and stored for the base volume. The object is rendered using the precomputed radiance values.
摘要翻译：外壳辐射纹理函数（SRTF）被定义为记录要渲染的对象的基本卷的传出辐射。使用SRTF，辐射值被预先计算并存储为基本卷。使用预先计算的辐射值渲染对象。

96. 发明申请

US20070216680A1 Surface Detail Rendering Using Leap Textures 失效
标题翻译：表面细节渲染使用跳跃纹理
公开(公告)号：US20070216680A1
公开(公告)日：2007-09-20
申请号：US11276931
申请日：2006-03-17
申请人： Xi Wang , Xin Tong , Stephen Lin , Baining Guo
发明人： Xi Wang , Xin Tong , Stephen Lin , Baining Guo
IPC分类号： G06T17/00
CPC分类号： G06T15/04
摘要： The present surface detail rendering technique provides an efficient technique for applying a mesostructure to a macrostructure for an object that minimizes the amount of memory required for pre-computed data. A leap texture is pre-computed for a mesostructure by classifying each voxel in the mesostructure geometry and assigning a value in the leap texture based upon the classification. The value in the leap texture represents a distance to jump along a ray cast in any view direction when a model is decorated with the mesostructure geometry.
摘要翻译：目前的表面细节渲染技术提供了一种将介观结构应用于最小化预先计算数据所需的存储量的对象的宏结构的有效技术。通过对介观结构几何中的每个体素进行分类，并根据分类在跳跃纹理中分配一个值，为中孔结构预先计算飞跃纹理。跳跃纹理中的值表示当模型用介观结构几何形状装饰时沿着任何视图方向投射的光线跳跃的距离。

97. 发明授权

US07184052B2 Real-time texture rendering using generalized displacement maps 有权
标题翻译：使用广义位移图进行实时纹理渲染
公开(公告)号：US07184052B2
公开(公告)日：2007-02-27
申请号：US10965603
申请日：2004-10-13
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： G06T17/00 , G06T15/60 , G09G5/00 , G06T15/50
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。

98. 发明授权

US6141441A Decoding data from patterned color modulated image regions in a color image 有权
标题翻译：从彩色图像中的图案化色彩调制图像区域解码数据
公开(公告)号：US6141441A
公开(公告)日：2000-10-31
申请号：US162257
申请日：1998-09-28
申请人： Todd A. Cass , Xin Tong
发明人： Todd A. Cass , Xin Tong
IPC分类号： G06T1/00 , G06K9/00
CPC分类号： G06T1/0028 , G06T2201/0051 , G06T2201/0061
摘要： A technique for decoding message data that has been encoded into a printed color image locates small image regions called signal cells that carry the encoded message. Each signal cell is composed of a spatial pattern of colored subregions that collectively have an overall average color. The colors of the subregions are defined as changes (modulations) to the average color in one or more directions in a multi-dimensional color space. The decoding technique uses a set of valid signal blocks, each of which is a unique pattern of color modulated subregions. There is a valid signal block for each valid message value defined in the coding scheme. The decoding operation first locates the positions of the signal cells in the acquired image and then subtracts the local average color of each signal cell from the cell to produce a received signal block. Then the decoding operation determines which valid signal block each received signal block is by comparing each valid signal block to a received signal block. One implementation of the decoding technique decodes signal cells that have been arranged in the acquired image in a 2D array by synchronizing an imaginary grid-like structure with the most likely position of all of the signal cells. In one embodiment, a color space direction is selected for the color modulations that results in the differently colored subregions of a signal cell being substantially imperceptible to a human viewer, thus making the pattern that carries the message substantially imperceptible in an encoded image.
摘要翻译：用于对已经编码成打印的彩色图像的消息数据进行解码的技术定位了称为携带编码消息的信号单元的小图像区域。每个信号单元由共同具有整体平均颜色的彩色子区域的空间图案组成。子区域的颜色被定义为在多维颜色空间中的一个或多个方向上的平均颜色的改变（调制）。解码技术使用一组有效的信号块，每个有效信号块是色调调制子区域的独特模式。在编码方案中定义的每个有效消息值都有一个有效的信号块。解码操作首先定位所获取的图像中的信号单元的位置，然后从单元中减去每个信号单元的局部平均颜色以产生接收信号块。然后，通过将每个有效信号块与接收到的信号块进行比较，解码操作确定每个接收信号块的哪个有效信号块。解码技术的一个实施方式是通过使假想网格状结构与所有信号单元的最可能的位置同步来对已排列在2D阵列中的所获取的图像中的信号单元进行解码。在一个实施例中，为颜色调制选择颜色空间方向，导致信号单元的不同颜色的子区域对于人类观察者是基本上不可察觉的，因此使得在编码图像中携带消息基本上不可察觉的图案。

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