专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

21. 发明授权

US07164424B2 Interactive water effects using texture coordinate shifting 失效
标题翻译：使用纹理坐标移动的互动水效果
公开(公告)号：US07164424B2
公开(公告)日：2007-01-16
申请号：US11113208
申请日：2005-04-22
申请人： Lin Liang , Yanyun Chen , Ying-Qing Xu , Baining Guo , Heung-Yeung Shum
发明人： Lin Liang , Yanyun Chen , Ying-Qing Xu , Baining Guo , Heung-Yeung Shum
IPC分类号： G06T13/00
CPC分类号： G06T13/60 , G06T13/80 , G06T15/04 , G06T2210/24 , H04N5/262
摘要： A system and process for adding a photorealistic rendering of a body of water to a virtual 3D scene or image and creating a video therefrom having interactive water effects. A region of water is added to an image by adding an area depicting the original scene as it would appear if reflected by still body of water. Then, the appearance of the added water region is distorted over a series of image frames in such a way as to simulate how the reflected scene would look if the surface of the water were in motion. The water can have dynamic waves and the user can interact with the water in numbers of ways, including generating ripples on the water surface and creating rain. In addition, these effects can be achieved at full screen resolution with the use of the latest graphics hardware by employing a texture shifting technique.
摘要翻译：一种用于向虚拟3D场景或图像添加水体的真实感渲染并从其创建具有交互式水效果的视频的系统和过程。通过添加描绘原始场景的区域，如水面反映的那样，将会显示水域。然后，增加的水域的外观在一系列图像帧上变形，以模拟如果水的表面运动，反射场景将如何看起来。水可以具有动态波，用户可以以多种方式与水相互作用，包括在水面上产生波纹并产生雨水。此外，通过采用纹理移位技术，通过使用最新的图形硬件，可以在全屏幕分辨率下实现这些效果。

22. 发明申请

US20070002056A1 Visual simulation of weathering by y-ton tracing 失效
标题翻译：通过y-ton跟踪进行风化的视觉模拟
公开(公告)号：US20070002056A1
公开(公告)日：2007-01-04
申请号：US11174439
申请日：2005-07-01
申请人： Yanyun Chen , Xin Tong , Baining Guo , Heung-Yeung Shum
发明人： Yanyun Chen , Xin Tong , Baining Guo , Heung-Yeung Shum
IPC分类号： G06T15/70
CPC分类号： G06F17/5009 , G06F2217/10
摘要： An exemplary computer-implementable method includes providing a computer-generated object wherein the object has characteristics, emitting a computer-generated particle, determining if the particle interacts with the object and, if the particle interacts with the object, altering one or more of the characteristic of the object wherein the altering simulates weathering or aging of the object. Various other exemplary techniques are also disclosed.
摘要翻译：示例性的可计算机可实现的方法包括提供计算机生成的对象，其中对象具有特征，发射计算机生成的粒子，确定粒子是否与对象相互作用，以及如果粒子与对象相互作用，则改变一个或多个其特征在于，其中改变模拟物体的风化或老化。还公开了各种其它示例性技术。

23. 发明授权

US06961058B2 Macrostructure modeling with microstructure reflectance slices 失效
标题翻译：微结构反射切片的宏观结构建模
公开(公告)号：US06961058B2
公开(公告)日：2005-11-01
申请号：US09928257
申请日：2001-08-10
申请人： Baining Guo , Steve Lin , Heung-Yeung Shum , Ying-Qing Xu , Yanyun Chen
发明人： Baining Guo , Steve Lin , Heung-Yeung Shum , Ying-Qing Xu , Yanyun Chen
IPC分类号： G06T15/00 , G06T15/50 , G06T17/00 , 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.
摘要翻译：一种用于高效合成照片写实自由形式针织品的方法和系统，其中单个横截面的纱线用作对整个针织品的造型进行建模的基本原理。这种原始的，称为lumislice，描述了纱线横截面基于精细水平相互作用（包括闭合，遮蔽和多重散射）在纱线纤维之间的辐射。通过将纱线表示为相同但旋转的横截面的序列，光栅可以有效地将局部微结构传播到任意针迹图案和针织品形状上。该框架适应不同程度的细节，并利用硬件辅助的透明度混合。为了进一步增强现实主义，还引入了从纱线产生柔和阴影的技术。

24. 发明申请

US20050012746A1 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：US20050012746A1
公开(公告)日：2005-01-20
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： G06T11/20 , G06T15/10 , G06T17/20
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。

25. 发明授权

US08922556B2 Line space gathering for single scattering in large scenes 有权
标题翻译：在大场景中单线散射的线空间聚集
公开(公告)号：US08922556B2
公开(公告)日：2014-12-30
申请号：US13089122
申请日：2011-04-18
申请人： Sun Xin , Stephen S. Lin , Baining Guo
发明人： Sun Xin , Stephen S. Lin , Baining Guo
IPC分类号： G06T15/50 , G06T15/06
CPC分类号： G06T15/06 , G06T15/506
摘要： A light gathering process may reduce the computational resources and storage required to render a scene with a participating homogeneous media. According to some implementations, Efficiency may be obtained by evaluating the final radiance along a viewing ray directly from the lighting rays passing near to it, and by rapidly identifying such lighting rays in the scene. To facilitate a search for nearby lighting rays, the lighting rays and viewing rays may be represented as a 6D point and a plane according to the corresponding Plucker coordinates and coefficients, respectively.
摘要翻译：光采集过程可以减少使用参与的均匀介质渲染场景所需的计算资源和存储空间。根据一些实施方式，可以通过直接从通过其附近的照明光线直接观察沿着观察光线的最终辐射，以及通过快速识别场景中的这种照明光线来获得效率。为了便于搜索附近的照明光线，照明光线和观察光线可以分别根据相应的Plucker坐标和系数表示为6D点和平面。

26. 发明授权

US07463769B2 Radiometric calibration from a single image 有权
标题翻译：单个图像的辐射校准
公开(公告)号：US07463769B2
公开(公告)日：2008-12-09
申请号：US11156988
申请日：2005-06-20
申请人： Stephen S. Lin , Baining Guo , Heung-Yeung Shum , Jinwei Gu
发明人： Stephen S. Lin , Baining Guo , Heung-Yeung Shum , Jinwei Gu
IPC分类号： G06K9/00
CPC分类号： H04N1/603 , G06T7/80 , G06T7/90
摘要： Radiometric calibration of an image capture device (e.g., a digital camera) using a single image is described. The single image may be a color image or a grayscale image. The calibration identifies and analyzes edge pixels of the image that correspond to an edge between two colors or grayscale levels of a scene. Intensity distributions of intensities measured from the single image are then analyzed. An inverse response function for the image capture device is determined based on the intensity distributions. For a color image, the radiometric calibration involves calculating an inverse response function that maps measured blended colors of edge pixels and the associated measured component colors into linear distributions. For a grayscale image, the radiometric calibration involves deriving an inverse response function that maps non-uniform histograms of measured intensities into uniform distributions of calibrated intensities.
摘要翻译：描述使用单个图像的图像捕获装置（例如，数码相机）的放射线校准。单个图像可以是彩色图像或灰度图像。校准识别和分析与场景的两种颜色或灰度级之间的边缘对应的图像的边缘像素。然后分析从单个图像测量的强度的强度分布。基于强度分布确定图像捕获装置的反应响应函数。对于彩色图像，辐射校准包括计算反向响应函数，其将边缘像素的测量混合颜色和相关联的测量分量颜色映射为线性分布。对于灰度图像，辐射校准涉及导出将测得的强度的不均匀直方图映射到校准强度的均匀分布的逆响应函数。

27. 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。

28. 发明授权

US08190403B2 Real-time rendering of light-scattering media 有权
标题翻译：实时渲染光散射介质
公开(公告)号：US08190403B2
公开(公告)日：2012-05-29
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。

29. 发明申请

US20110012910A1 MOTION FIELD TEXTURE SYNTHESIS 审中-公开
标题翻译：运动场纹理合成
公开(公告)号：US20110012910A1
公开(公告)日：2011-01-20
申请号：US12503162
申请日：2009-07-15
申请人： Li-Yi Wei , Chongyang Ma , Baining Guo , Kun Zhou
发明人： Li-Yi Wei , Chongyang Ma , Baining Guo , Kun Zhou
IPC分类号： G06T15/70 , G09G5/00
CPC分类号： G06T11/001 , H04N19/537
摘要： A system is described for using a texture synthesis approach to produce digital images that simulate motion. The system operates by receiving a large-scale motion image that describes large-scale motion, as well as one or more exemplar images that describes small-scale motion. The system then applies a texture synthesis approach to duplicate the small-scale motion described in the exemplar image(s), as guided by the large-scale motion described in the large-scale motion image. This operation produces a synthesized motion image. The system then combines the synthesized motion image with the large-scale motion image to produce a combined motion image. The combined motion image presents the large-scale motion as modulated by the small-scale motion. The system can also take account for one or more application-specific constraints, such as incompressibility and boundary conditions.
摘要翻译：描述了一种使用纹理合成方法来产生模拟运动的数字图像的系统。该系统通过接收描述大规模运动的大规模运动图像以及描述小规模运动的一个或多个示例图像来操作。然后，系统应用纹理合成方法来复制在大型运动图像中描述的大规模运动所指示的示例图像中描述的小规模运动。该操作产生合成运动图像。然后，系统将合成的运动图像与大规模运动图像组合以产生组合运动图像。组合的运动图像呈现由小规模运动调制的大规模运动。系统还可以考虑一个或多个特定于应用程序的约束，例如不可压缩性和边界条件。

30. 发明授权

US07843456B2 Gradient domain editing of animated meshes 有权
标题翻译：动画网格的梯度域编辑
公开(公告)号：US07843456B2
公开(公告)日：2010-11-30
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。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式