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1.发明授权System and method for interactively rendering objects with surface light fields and view-dependent opacity 失效用于交互式渲染具有表面光场和视图相关不透明度的对象的系统和方法公开(公告)号：US07194125B2
公开(公告)日：2007-03-20
申请号：US10318708
申请日：2002-12-13
CPC分类号： G06T15/205
摘要： A method renders a model of a 3D object. A polygon model of the 3D object is generated, and a set of input images are acquired of the object. For each vertex of the polygon model, a set of visible views are located, and a set of closest views are selected from the visibility views. Blending weights are determined for each closest view. Then, the each polygon in the model is rendered into an output image. The rendering is performed by blending images of the set of input images corresponding to the set of closest views of each vertex of the polygon using the blending weights.
摘要翻译： 一种方法呈现3D对象的模型。 生成3D对象的多边形模型，并且获取对象的一组输入图像。 对于多边形模型的每个顶点，定位一组可见视图，并从可见性视图中选择一组最接近的视图。 为每个最接近的视图确定混合权重。 然后，将模型中的每个多边形呈现为输出图像。 通过使用混合权重将与多边形的每个顶点的最近视图的集合对应的输入图像集合的图像混合来执行呈现。
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公开(公告)号：US07609906B2
公开(公告)日：2009-10-27
申请号：US11397227
申请日：2006-04-04
IPC分类号： G06K9/40
CPC分类号： H04N13/122
摘要： A method and system acquire and display light fields. A continuous light field is reconstructed from input samples of an input light field of a 3D scene acquired by cameras according to an acquisition parameterization. The continuous light is reparameterized according to a display parameterization and then prefiltering and sampled to produce output samples having the display parametrization. The output samples are displayed as an output light field using a 3D display device.
摘要翻译： 一种方法和系统获取和显示光场。 根据采集参数化，由摄像机获取的3D场景的输入光场的输入样本重建连续光场。 根据显示参数化对连续光进行重新参数化，然后对其进行预过滤和采样，以产生具有显示参数化的输出样本。 使用3D显示装置将输出样本显示为输出光场。
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公开(公告)号：US20070229498A1
公开(公告)日：2007-10-04
申请号：US11392917
申请日：2006-03-29
IPC分类号： G06T17/00
CPC分类号： G06T17/20
摘要： The invention provides a system and method for modeling small three-dimensional facial features, such as wrinkles and pores. A scan of a face is acquired. A polygon mesh is constructed from the scan. The polygon mesh is reparameterized to determine a base mesh and a displacement image. The displacement image is partitioned into a plurality of tiles. Statistics for each tile are measured. The statistics is modified to deform the displacement image and the deformed displacement image is combined with the base mesh to synthesize a novel face.
摘要翻译： 本发明提供了一种用于建模诸如皱纹和毛孔的小三维面部特征的系统和方法。 获取脸部扫描。 从扫描构建多边形网格。 重新参数化多边形网格以确定基础网格和位移图像。 位移图像被分割成多个瓦片。 测量每个瓦片的统计数据。 修改统计量以使位移图像变形，并且将变形的位移图像与基准网格组合以合成新颖的面部。
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公开(公告)号：US20060221248A1
公开(公告)日：2006-10-05
申请号：US11092376
申请日：2005-03-29
IPC分类号： H04N9/74
CPC分类号： H04N5/272
摘要： A method and system extracts a matte from images acquired of a scene. A foreground image focused at a foreground in a scene, a background image focused at a background in the scene, and a pinhole image focused on the entire scene are acquired. These three images can be acquired sequentially by a single camera, or simultaneous by three cameras. In the later case, foreground, background and pinhole sequences of images can be acquired. The pinhole image is compared to the foreground image and the background image to extract a matte representing the scene. The comparison classifies pixels in the images as foreground, background, or unknown pixels. An optimizer minimizes an error function in the form of Fourier image equations using a gradient descent method. The error function expresses pixel intensity differences.
摘要翻译： 方法和系统从场景获取的图像中提取哑光。 获取聚焦在场景中的前景的前景图像，聚焦在场景背景中的背景图像以及聚焦在整个场景上的针孔图像。 这三个图像可以由单个相机顺序获取，或者由三个相机同时获取。 在后一种情况下，可以获取图像的前景，背景和针孔序列。 将针孔图像与前景图像和背景图像进行比较，以提取表示场景的哑光。 比较将图像中的像素分类为前景，背景或未知像素。 优化器使用梯度下降法将傅里叶图像方程式的误差函数最小化。 误差函数表示像素强度差异。
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公开(公告)号：US08044994B2
公开(公告)日：2011-10-25
申请号：US11696596
申请日：2007-04-04
CPC分类号： H04N19/597 , H04N13/122 , H04N13/128 , H04N13/243
摘要： A method and system acquire and display light fields. A continuous light field is reconstructed from input samples of an input light field of a 3D scene acquired by cameras according to an acquisition parameterization. The continuous light is reparameterized according to a display parameterization and then prefiltering and sampled to produce output samples having the display parametrization. The output samples are displayed as an output light field using a 3D display device. The reconstruction can be performed by interpolating the input samples having the different views.
摘要翻译： 一种方法和系统获取和显示光场。 根据采集参数化，由摄像机获取的3D场景的输入光场的输入样本重建连续光场。 根据显示参数化对连续光进行重新参数化，然后对其进行预过滤和采样，以产生具有显示参数化的输出样本。 使用3D显示装置将输出样本显示为输出光场。 可以通过内插具有不同视图的输入样本来执行重建。
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6.发明申请Method and System for Acquiring, Encoding, Decoding and Displaying 3D Light Fields 有权用于获取，编码，解码和显示3D光场的方法和系统公开(公告)号：US20080043095A1
公开(公告)日：2008-02-21
申请号：US11696562
申请日：2007-04-04
IPC分类号： H04N15/00
CPC分类号： H04N19/597 , H04N13/111 , H04N13/122 , H04N13/161 , H04N13/398 , H04N2213/005
摘要： A method and system acquire and display light fields. A continuous light field is reconstructed from input samples of an input light field of a 3D scene acquired by cameras according to an acquisition parameterization. The continuous light is reparameterized according to a display parameterization and then prefiltering and sampled to produce output samples having the display parametrization. The output samples are displayed as an output light field using a 3D display device. The reconstruction can be performed by interpolating the input samples having the different views;
摘要翻译： 一种方法和系统获取和显示光场。 根据采集参数化，由摄像机获取的3D场景的输入光场的输入样本重建连续光场。 根据显示参数化对连续光进行重新参数化，然后对其进行预过滤和采样，以产生具有显示参数化的输出样本。 使用3D显示装置将输出样本显示为输出光场。 可以通过内插具有不同视图的输入样本来执行重建;
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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
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。
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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。
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公开(公告)号：US06792140B2
公开(公告)日：2004-09-14
申请号：US09842972
申请日：2001-04-26
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。
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10.发明授权公开(公告)号：US08565909B2
公开(公告)日：2013-10-22
申请号：US13031036
申请日：2011-02-18
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。
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