公开(公告)号：US09013496B2

公开(公告)日：2015-04-21

申请号：US13526716

申请日：2012-06-19

申请人： Jiaping Wang ,  Peiran Ren ,  Minmin Gong ,  Xin Tong ,  Stephen S. Lin ,  Baining Guo

发明人： Jiaping Wang ,  Peiran Ren ,  Minmin Gong ,  Xin Tong ,  Stephen S. Lin ,  Baining Guo

IPC分类号： G09G5/00 ,  G06N99/00 ,  G06T15/50

CPC分类号： G06T15/506 ,  G06N99/005 ,  G06T15/80

摘要： Some implementations disclosed herein provide techniques and arrangements to render global light transport in real-time or near real-time. For example, in a pre-computation stage, a first computing device may render points of surfaces (e.g., using multiple light bounces and the like). Attributes for each of the points may be determined. A plurality of machine learning algorithms may be trained using particular attributes from the attributes. For example, a first machine learning algorithm may be trained using a first portion of the attributes and a second machine learning algorithm may be trained using a second portion of the attributes. The trained machine learning algorithms may be used by a second computing device to render components (e.g., diffuse and specular components) of indirect shading in real-time.

摘要翻译： 本文公开的一些实施例提供了实时或接近实时地呈现全局光传输的技术和布置。 例如，在预计算阶段，第一计算设备可以渲染表面的点（例如，使用多个光反射等）。 可以确定每个点的属性。 可以使用来自属性的特定属性来训练多个机器学习算法。 例如，可以使用属性的第一部分来训练第一机器学习算法，并且可以使用属性的第二部分来训练第二机器学习算法。 经过训练的机器学习算法可以被第二计算设备用于实时地呈现间接着色的组件（例如，漫反射和镜面分量）。

公开(公告)号：US20130335434A1

公开(公告)日：2013-12-19

申请号：US13526716

申请日：2012-06-19

申请人： Jiaping Wang ,  Peiran Ren ,  Minmin Gong ,  Xin Tong ,  Stephen S. Lin ,  Baining Guo

发明人： Jiaping Wang ,  Peiran Ren ,  Minmin Gong ,  Xin Tong ,  Stephen S. Lin ,  Baining Guo

IPC分类号： G09G5/00

CPC分类号： G06T15/506 ,  G06N99/005 ,  G06T15/80

摘要： Some implementations disclosed herein provide techniques and arrangements to render global light transport in real-time or near real-time. For example, in a pre-computation stage, a first computing device may render points of surfaces (e.g., using multiple light bounces and the like). Attributes for each of the points may be determined. A plurality of machine learning algorithms may be trained using particular attributes from the attributes. For example, a first machine learning algorithm may be trained using a first portion of the attributes and a second machine learning algorithm may be trained using a second portion of the attributes. The trained machine learning algorithms may be used by a second computing device to render components (e.g., diffuse and specular components) of indirect shading in real-time.

公开(公告)号：US08953037B2

公开(公告)日：2015-02-10

申请号：US13274191

申请日：2011-10-14

申请人： Jiaping Wang ,  Baining Guo ,  Peiran Ren ,  John Michael Snyder ,  Xin Tong

发明人： Jiaping Wang ,  Baining Guo ,  Peiran Ren ,  John Michael Snyder ,  Xin Tong

IPC分类号： H04N9/47 ,  H04N1/00 ,  G01N21/55

CPC分类号： H04N1/00018 ,  G01N21/55 ,  H04N1/00013 ,  H04N1/00045 ,  H04N1/00087

摘要： A system for reflectance acquisition of a target includes a light source, an image capture device, and a reflectance reference chart. The reflectance reference chart is fixed relative to the target. The light source provides a uniform band of light across at least a dimension of the target. The image capture device is configured and positioned to encompass at least a portion of the target and at least a portion of the reflectance reference chart within a field-of-view of the image capture device. The image capture device captures a sequence of images of the target and the reflectance reference chart during a scan thereof. Reflectance responses are calculated for the pixels in the sequence of images. Reference reflectance response distribution functions are matched to the calculated reflectance responses, and an image of the target is reconstructed based at least in part on the matched reference reflectance response distribution functions.

摘要翻译： 用于目标的反射获取的系统包括光源，图像捕获装置和反射率参考图。 反射率参考图表相对于目标是固定的。 光源在目标的至少一维上提供均匀的光束。 图像捕获设备被配置和定位成在图像捕获设备的视野内包围目标的至少一部分和反射参考图的至少一部分。 图像捕获装置在其扫描期间捕获目标的图像序列和反射率参考图。 针对图像序列中的像素计算反射响应。 参考反射响应分布函数与所计算的反射率响应匹配，并且至少部分地基于匹配的参考反射响应分布函数来重建目标的图像。

公开(公告)号：US20130093883A1

公开(公告)日：2013-04-18

申请号：US13274191

申请日：2011-10-14

申请人： Jiaping Wang ,  Baining Guo ,  Peiran Ren ,  John Michael Snyder ,  Xin Tong

发明人： Jiaping Wang ,  Baining Guo ,  Peiran Ren ,  John Michael Snyder ,  Xin Tong

IPC分类号： H04N7/18

CPC分类号： H04N1/00018 ,  G01N21/55 ,  H04N1/00013 ,  H04N1/00045 ,  H04N1/00087

摘要： A system for reflectance acquisition of a target includes a light source, an image capture device, and a reflectance reference chart. The reflectance reference chart is fixed relative to the target. The light source provides a uniform band of light across at least a dimension of the target. The image capture device is configured and positioned to encompass at least a portion of the target and at least a portion of the reflectance reference chart within a field-of-view of the image capture device. The image capture device captures a sequence of images of the target and the reflectance reference chart during a scan thereof. Reflectance responses are calculated for the pixels in the sequence of images. Reference reflectance response distribution functions are matched to the calculated reflectance responses, and an image of the target is reconstructed based at least in part on the matched reference reflectance response distribution functions.

摘要翻译： 用于目标的反射获取的系统包括光源，图像捕获装置和反射率参考图。 反射率参考图表相对于目标是固定的。 光源在目标的至少一维上提供均匀的光束。 图像捕获设备被配置和定位成在图像捕获设备的视野内包围目标的至少一部分和反射参考图的至少一部分。 图像捕获装置在其扫描期间捕获目标的图像序列和反射率参考图。 针对图像序列中的像素计算反射响应。 参考反射响应分布函数与所计算的反射率响应匹配，并且至少部分地基于匹配的参考反射响应分布函数来重建目标的图像。

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。

公开(公告)号：US07312797B2

公开(公告)日：2007-12-25

申请号：US11166559

申请日：2005-06-24

申请人： Xin Tong ,  Jiaping Wang ,  Stephen S. Lin ,  Baining Guo ,  Heung-Yeung Shum

发明人： Xin Tong ,  Jiaping Wang ,  Stephen S. Lin ,  Baining Guo ,  Heung-Yeung Shum

IPC分类号： G06T11/00

CPC分类号： G06T11/001 ,  G01N21/4795 ,  G06T15/506

摘要： Representing quasi-homogenous materials is described. In one aspect, quasi-homogenous materials are modeled to generate a material model of a physical sample. The material model identifies how light is scattered by the quasi-homogenous materials. The material model, independent of an object model of the physical sample, provides information that is useful to texture surfaces of arbitrary types and sizes of mesh models (e.g., representing the physical sample or other objects) with the quasi-homogenous materials.

摘要翻译： 描述了准均匀材料。 在一个方面，准均质材料被建模以产生物理样品的材料模型。 材料模型通过准均质材料识别光如何散射。 材料模型独立于物理样本的对象模型，提供了有用于使用准均质材料对任意类型和大小的网格模型（例如，表示物理样本或其他对象）的表面进行纹理的信息。

公开(公告)号：US08730240B2

公开(公告)日：2014-05-20

申请号：US13584158

申请日：2012-08-13

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： G06T15/50 ,  G06T15/60 ,  G01N21/47

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。

公开(公告)号：US20120306878A1

公开(公告)日：2012-12-06

申请号：US13584158

申请日：2012-08-13

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： G06T15/50

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。

公开(公告)号：US20090219287A1

公开(公告)日：2009-09-03

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： G06T15/50 ,  G06F3/048

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。

公开(公告)号：US20110157192A1

公开(公告)日：2011-06-30

申请号：US12648699

申请日：2009-12-29

申请人： Minmin Gong ,  Jiaping Wang ,  Peiran Ren

发明人： Minmin Gong ,  Jiaping Wang ,  Peiran Ren

IPC分类号： G06K9/36 ,  G06F15/80 ,  G06K9/46

CPC分类号： H04N19/98 ,  G06T9/00 ,  H04N19/436

摘要： Disclosed is a system and method for determining, in parallel on a graphics processing unit, a block compression case which results in a least error to a block. Once determined, the block compression case may be used to compress the block.

摘要翻译： 公开了一种用于在图形处理单元上并行确定导致块的最小错误的块压缩情况的系统和方法。 一旦确定，可以使用块压缩情况来压缩块。