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11. 发明授权

US07218324B2 Scene reflectance functions under natural illumination 失效
标题翻译：自然光照下的场景反射功能
公开(公告)号：US07218324B2
公开(公告)日：2007-05-15
申请号：US10871908
申请日：2004-06-18
申请人： Hanspeter Pfister , Wojciech Matusik , Matthew M. Loper
发明人： Hanspeter Pfister , Wojciech Matusik , Matthew M. Loper
IPC分类号： G06T15/50
CPC分类号： G06T15/506 , G06T7/40 , G06T15/50
摘要： A method and system estimates a reflectance function of an arbitrary scene. The scene is illuminated under various lighting condition. For each lighting condition there is an associated illumination image and an observed image. Multiple, non-overlapping kernels are determined for each pixel in a reflectance image from the pairs of illumination and observed images. A weight is then determined for each kernel to estimate the reflectance function represented as the reflectance image.
摘要翻译：方法和系统估计任意场景的反射函数。场景在各种照明条件下照亮。对于每个照明条件，存在相关联的照明图像和观察图像。针对来自照明对和观察图像的反射率图像中的每个像素确定多个不重叠的内核。然后确定每个核的权重以估计表示为反射率图像的反射函数。

12. 发明授权

US07142726B2 Three-dimensional scene reconstruction from labeled two-dimensional images 失效
标题翻译：标记二维图像的三维场景重建
公开(公告)号：US07142726B2
公开(公告)日：2006-11-28
申请号：US10391998
申请日：2003-03-19
申请人： Remo Ziegler , Wojciech Matusik , Hanspeter Pfister
发明人： Remo Ziegler , Wojciech Matusik , Hanspeter Pfister
IPC分类号： G06K9/00 , G06K9/36 , G06T17/00
CPC分类号： G06T17/10 , G06T7/55 , G06T2200/08
摘要： A method constructs three-dimensional (3D) models of a scene from a set of two-dimensional (2D) input images. The 3D model can then be used to reconstruct the scene from arbitrary viewpoints. A user segments and labels a set of corresponding polygonal regions in each image using conventional photo-editing tools. The invention constructs the model so that the model has a maximum volume that is consistent with the set of labeled regions in the input images. The method according to the invention directly constructs the polygonal model.
摘要翻译：一种方法从一组二维（2D）输入图像构建场景的三维（3D）模型。然后可以使用3D模型从任意视点重建场景。用户使用传统的照片编辑工具在每个图像中分割和标记一组相应的多边形区域。本发明构建模型，使得模型具有与输入图像中的标记区域集合一致的最大体积。根据本发明的方法直接构造多边形模型。

13. 发明申请

US20060221209A1 Apparatus and method for acquiring and combining images of a scene with multiple optical characteristics at multiple resolutions 审中-公开
标题翻译：用于以多个分辨率获取和组合具有多个光学特性的场景的图像的装置和方法
公开(公告)号：US20060221209A1
公开(公告)日：2006-10-05
申请号：US11092375
申请日：2005-03-29
申请人： Morgan McGuire , Wojciech Matusik , Hanspeter Pfister
发明人： Morgan McGuire , Wojciech Matusik , Hanspeter Pfister
IPC分类号： H01L27/00 , H04N5/262 , G06K9/32
CPC分类号： H04N5/2254 , H01L27/14625 , H04N5/2258 , H04N5/2355
摘要： A camera system acquires multiple optical characteristics at multiple resolutions of a scene. The camera system includes multiple optical elements arranged as a tree having a multiple of nodes connected by edges. the nodes represent optical elements sharing a single optical center, and the edges representing light paths between the nodes. The tree has the following structure: a single root node acquiring a plenoptic field originating from a scene; nodes with a single child node represent filters, lenses, apertures, and shutters; nodes with multiple child nodes represent beam splitters and leaf nodes represent imaging sensors. Furthermore, a length of the light paths from the roof node to each leaf nodes can be equal.
摘要翻译：相机系统以场景的多个分辨率获取多个光学特性。相机系统包括被布置成具有通过边缘连接的多个节点的树的多个光学元件。节点表示共享单个光学中心的光学元件，并且边缘表示节点之间的光路径。树具有以下结构：单个根节点获取源自场景的全视场; 具有单个子节点的节点表示滤波器，透镜，孔径和快门; 具有多个子节点的节点表示分束器，叶节点表示成像传感器。此外，从屋顶节点到每个叶节点的光路的长度可以相等。

14. 发明授权

US06803910B2 Rendering compressed surface reflectance fields of 3D objects 失效
标题翻译：渲染3D物体的压缩表面反射场
公开(公告)号：US06803910B2
公开(公告)日：2004-10-12
申请号：US10185352
申请日：2002-06-27
申请人： Hanspeter Pfister , Wojciech Matusik
发明人： Hanspeter Pfister , Wojciech Matusik
IPC分类号： G06T1700
CPC分类号： G06T15/506 , G06T9/001 , G06T17/20
摘要： A method models a three-dimensional object with a compressed surface reflectance field. Images of the object are acquired with multiple cameras for multiple viewpoints under different lighting conditions. The images are stored in a matrix Mr representing a surface reflectance field for the three-dimensional object. The matrix Mr is factorized into principle components pck and coefficients cfk. The principal components pck are stored in a matrix Mpc. The matrix Mpc is then factorized into principle components pcm and coefficients cfk which can be stored for each vertex V of a model of the three-dimensional object. The corresponding values of the principle components pcm, coefficients cfk, and coefficients cfk, respectively represent a compression of a surface map, which can be rendered from arbitrary viewpoints and under arbitrary lighting conditions.
摘要翻译：一种用压缩表面反射场对三维物体建模的方法。在不同的照明条件下，通过多个摄像机获取对象的图像以获得多个视点。图像被存储在表示三维物体的表面反射场的矩阵Mr中。矩阵Mr被分解为主成分pck和系数cfk。主要组件pck存储在矩阵Mpc中。然后将矩阵Mpc分解为主要分量pcm和可以为三维物体的模型的每个顶点V存储的系数cfk。原理分量pcm，系数cfk和系数cfk的相应值分别表示可以从任意视点和任意照明条件下呈现的表面图的压缩。

15. 发明授权

US06903738B2 Image-based 3D modeling rendering system 失效
标题翻译：基于图像的3D建模渲染系统
公开(公告)号：US06903738B2
公开(公告)日：2005-06-07
申请号：US10173069
申请日：2002-06-17
申请人： Hanspeter Pfister , Wojciech Matusik , Wai Kit Addy Ngan , Leonard McMillan, Jr. , Paul Beardsley
发明人： Hanspeter Pfister , Wojciech Matusik , Wai Kit Addy Ngan , Leonard McMillan, Jr. , Paul Beardsley
IPC分类号： G06T15/20 , G06T17/10 , G06T17/30 , G06T17/00
CPC分类号： G06T15/205 , G06T17/20
摘要： A method models a three-dimensional object by first acquiring alpha mattes of the object for multiple viewpoints. The alpha mattes are then projected onto a surface hull completely enclosing the object to construct an opacity hull storing opacity values of the surface of the object. The object is illuminated for various lighting conditions while images are acquired. The images are projected onto the opacity hull to render the object under arbitrary lighting conditions for arbitrary viewpoints.
摘要翻译：一种方法通过首先获取多个视点的对象的alpha遮罩来建模三维对象。然后将alpha mattes投影到完全包围对象的表面船体上，以构建存储对象表面的不透明度值的不透明度船体。当获取图像时，对象被照亮用于各种照明条件。将图像投影到不透明度船体上，以便在任意视点的任意照明条件下渲染物体。

16. 发明授权

US06831641B2 Modeling and rendering of surface reflectance fields of 3D objects 失效
标题翻译： 3D物体表面反射场的建模与渲染
公开(公告)号：US06831641B2
公开(公告)日：2004-12-14
申请号：US10172967
申请日：2002-06-17
申请人： Wojciech Matusik , Hanspeter Pfister , Wai Kit Addy Ngan , Leonard McMillan, Jr. , Remo Ziegler
发明人： Wojciech Matusik , Hanspeter Pfister , Wai Kit Addy Ngan , Leonard McMillan, Jr. , Remo Ziegler
IPC分类号： G06T1550
CPC分类号： G06T15/506 , G06T9/001 , G06T17/20
摘要： A method models a three-dimensional object by first acquiring alpha mattes of the object for multiple viewpoints. The alpha mattes are then projected onto a surface hull completely enclosing the object to construct an opacity hull storing opacity values of the surface of the object. The object is illuminated for various lighting conditions while images are acquired. The images are projected onto the opacity hull to render the object under arbitrary lighting conditions for arbitrary viewpoints.
摘要翻译：一种方法通过首先获取多个视点的对象的alpha遮罩来建模三维对象。然后将alpha mattes投影到完全包围对象的表面船体上，以构建存储对象表面的不透明度值的不透明度船体。当获取图像时，对象被照亮用于各种照明条件。将图像投影到不透明度船体上，以便在任意视点的任意照明条件下渲染物体。

17. 发明授权

US06792140B2 Image-based 3D digitizer 失效
标题翻译：基于图像的3D数字化仪
公开(公告)号：US06792140B2
公开(公告)日：2004-09-14
申请号：US09842972
申请日：2001-04-26
申请人： Wojciech Matusik , Hanspeter Pfister , Paul Beardsley , Leonard McMillan, Jr.
发明人： Wojciech Matusik , Hanspeter Pfister , Paul Beardsley , Leonard McMillan, Jr.
IPC分类号： G06K900
CPC分类号： G06T7/564 , G06T7/557 , G06T2200/08
摘要： A system digitizes a three-dimensional object as a three-dimension model by placing the object on a turntable while taking two sets of corresponding images. The first set of images and the second set of images are obtained while rotating the turntable to a various positions and illuminated the object with the overhead lights and backlights. There is a one to one correspondence for images in each set for each position of the turntable. Object shape data and texture data are respectively extracted from the first and second set of images. The object shape data is correlated with the object texture data to construct the three-dimensional digital model stored in a memory of a computer system.
摘要翻译：系统通过将对象放置在转盘上同时采取两组相应的图像，将三维物体数字化为三维模型。获得第一组图像和第二组图像，同时将转盘旋转到各种位置，并用顶灯和背光照亮物体。对于转盘的每个位置，每组中的图像有一对一的对应关系。从第一和第二组图像分别提取对象形状数据和纹理数据。对象形状数据与对象纹理数据相关联，以构建存储在计算机系统的存储器中的三维数字模型。

18. 发明授权

US08565909B2 Fabrication of materials with desired characteristics from base materials having determined characteristics 有权
标题翻译：从具有确定特性的基材制造具有所需特性的材料
公开(公告)号：US08565909B2
公开(公告)日：2013-10-22
申请号：US13031036
申请日：2011-02-18
申请人： Bernd Bickel , Wojciech Matusik , Miguel A. Otaduy , Markus Gross , Hanspeter Pfister
发明人： Bernd Bickel , Wojciech Matusik , Miguel A. Otaduy , Markus Gross , Hanspeter Pfister
IPC分类号： G06F19/00
CPC分类号： B33Y50/00 , B29C64/00 , B29C64/386 , B33Y80/00 , G06F17/50 , G06F2217/10 , G06F2217/12
摘要： In an object generation system, consumable base materials are characterized in a characterization process wherein an object generation system can use a plurality of so-characterized base materials. User input representing a desired object and set of characteristics for that desired object are processed, using a computer or computing device, to derive a mapping of locations for placement of portions of the plurality of base materials such that when the mapping is provided to an object generator, the generated object approximates the representing a desired object and set of characteristics. The characterization of a base material might include elasticity of the base material, the user input might be a desired shape and elasticity, the object generator might be a 3D multi-material printer and the generated object might at least approximate the desired shape and elasticity as a result of being constructed from the plurality of base materials used by the printer.
摘要翻译：在对象生成系统中，消耗性基材的特征在于表征过程，其中对象生成系统可以使用多个如此表征的基材。使用计算机或计算设备处理表示期望对象的所需对象和特征集的用户输入，以导出用于放置多个基础材料的部分的位置的映射，使得当将映射提供给对象时生成的对象近似表示期望的对象和特征集合。基材的表征可能包括基材的弹性，用户输入可能是期望的形状和弹性，对象生成器可以是3D多材料打印机，并且所生成的对象可以至少近似所需的形状和弹性，如这是由打印机使用的多种基材构成的结果。

19. 发明授权

US07756356B2 System and method for factorizing light in a sequence of images 失效
标题翻译：在一系列图像中对光进行分解的系统和方法
公开(公告)号：US07756356B2
公开(公告)日：2010-07-13
申请号：US11683833
申请日：2007-03-08
申请人： Hanspeter Pfister , Wojciech Matusik , Kalyan Sunkavalli , Szymon M. Rusinkiewicz
发明人： Hanspeter Pfister , Wojciech Matusik , Kalyan Sunkavalli , Szymon M. Rusinkiewicz
IPC分类号： G06K9/36
CPC分类号： G06T11/60 , H04N5/262
摘要： A method factorizing a sequence of images acquired of a scene into lighting components. The scene is illuminated by a moving light source. An appearance profile is constructed for each pixel in the sequence of images. The appearance profile is a vector representing intensities of the pixel at instances in time. The appearance profiles are factorized into a shadow component, a skylight component, and a sunlight component.
摘要翻译：将场景获取的图像序列分解为照明组件的方法。场景由移动的光源照亮。为图像序列中的每个像素构造外观轮廓。外观轮廓是表示时间上的像素的强度的矢量。外观轮廓被分解为阴影部件，天窗部件和阳光部件。

20. 发明授权

US07599555B2 System and method for image matting 失效
标题翻译：图像消光系统和方法
公开(公告)号：US07599555B2
公开(公告)日：2009-10-06
申请号：US11092376
申请日：2005-03-29
申请人： Morgan McGuire , Wojciech Matusik , Hanspeter Pfister , John F. Hughes , Fredo Durand
发明人： Morgan McGuire , Wojciech Matusik , Hanspeter Pfister , John F. Hughes , Fredo Durand
IPC分类号： G06K9/34
CPC分类号： H04N5/272
摘要： A method compresses a set of correlated signals by first converting each signal to a sequence of integers, which are further organized as a set of bit-planes. An inverse accumulator is applied to each bit-plane to produce a bit-plane of shifted bits, which are permuted according to a predetermined permutation to produce bit-planes of permuted bits. Each bit-plane of permuted bits is partitioned into a set of blocks of bits. Syndrome bits are generated for each block of bits according to a rate-adaptive base code. Subsequently, the syndrome bits are decompressed in a decoder to recover the original correlated signals.
摘要翻译：一种方法通过首先将每个信号转换成整数序列来压缩一组相关信号，该整数序列进一步被组织为一组位平面。反向累加器被施加到每个位平面以产生位移位的位平面，它们根据预定的排列被排列以产生置换位的位平面。置换位的每个位平面被划分成一组位块。根据速率自适应基本码为每个位块产生综合位。随后，解码器中的校正子位解压缩以恢复原始的相关信号。

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