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公开(公告)号：US07218324B2
公开(公告)日：2007-05-15
申请号：US10871908
申请日：2004-06-18
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。
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公开(公告)号：US20070070200A1
公开(公告)日：2007-03-29
申请号：US11388499
申请日：2006-03-24
申请人： Wojciech Matusik , Shmuel Avidan
发明人： Wojciech Matusik , Shmuel Avidan
IPC分类号： H04N7/18
CPC分类号： H04N5/272 , H04N5/2226
摘要： A method and system for determining an alpha matte for a video is presented. A set of videos is acquired by an array of cameras. A centrally located camera in the array is designated as a reference camera and acquires a reference video. A foreground depth plane is selected from the set of videos. A trimap is determined from variances of pixel intensities in each image. Variances of the intensities of pixels labeled as background and pixels labeled as foreground are extrapolated to the pixels labeled as unknown in the trimap. Means of the intensities of the pixels labeled as background are extrapolated to the pixels labeled as unknown to determine an alpha matte for the reference video.
摘要翻译： 提出了一种用于确定视频的Alpha哑光的方法和系统。 一组相机获得一组视频。 将阵列中心位置的相机指定为参考相机并获取参考视频。 从视频集中选择前景深度平面。 由每个图像中的像素强度的方差确定微分。 标记为背景的像素的强度和标记为前景的像素的差异被外推到在trimap中标记为未知的像素。 标记为背景的像素的强度的方式被外推到标记为未知的像素，以确定参考视频的α无光泽。
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公开(公告)号：US20070025727A1
公开(公告)日：2007-02-01
申请号：US11193752
申请日：2005-07-29
IPC分类号： G03B9/02
CPC分类号： G03B9/02 , G02B27/281 , G03B15/06 , H04N5/2254 , H04N5/272
摘要： A camera aperture includes a first polarizer and a second polarizer with a polarization 90° with respect to the first polarizer. The second polarizer has a through hole at a center. A polarizing rotator is disposed between the first polarizer and the second polarizer. A size of the aperture is changed when a voltage is applied selectively to the polarizing rotator.
摘要翻译： 相机孔径包括第一偏振器和相对于第一偏振器偏振90°的第二偏振器。 第二偏振器在中心具有通孔。 偏振旋转体设置在第一偏振器和第二偏振器之间。 当选择性地向偏光旋转器施加电压时，孔径的尺寸被改变。
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44.发明授权公开(公告)号：US07142726B2
公开(公告)日：2006-11-28
申请号：US10391998
申请日：2003-03-19
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。
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公开(公告)号：US06803910B2
公开(公告)日：2004-10-12
申请号：US10185352
申请日：2002-06-27
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。
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公开(公告)号：US10834379B2
公开(公告)日：2020-11-10
申请号：US16578420
申请日：2019-09-23
申请人： Mohamed M. Hefeeda , Kiana Ali Asghar Calagari , Mohamed Abdelaziz A Mohamed Elgharib , Wojciech Matusik , Piotr Didyk , Alexandre Kaspar
发明人： Mohamed M. Hefeeda , Kiana Ali Asghar Calagari , Mohamed Abdelaziz A Mohamed Elgharib , Wojciech Matusik , Piotr Didyk , Alexandre Kaspar
IPC分类号： H04N13/268 , G06F16/738 , G06T7/50 , H04N13/261 , G06T7/55 , G06T7/11 , H04N13/00
摘要： A wide spread adoption of 3D videos and technologies is hindered by the lack of high-quality 3D content. One promising solution to address this problem is to use automated 2D-to-3D conversion. However, current conversion methods, while general, produce low-quality results with artefacts that are not acceptable to many viewers. Creating a database of 3D stereoscopic videos with accurate depth is, however, very difficult. Computer generated content can be used to generate high-quality 3D video reference database for 2D-to-3D conversion. The method transfers depth information from frames in the 3D reference database to the target frame while respecting object boundaries. It computes depth maps from the depth gradients, and outputs a stereoscopic video.
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公开(公告)号：US09588489B2
公开(公告)日：2017-03-07
申请号：US13167601
申请日：2011-06-23
IPC分类号： G03H1/08
CPC分类号： G03H1/0808 , G03H2210/441 , G03H2210/452
摘要： A technique for fabricating a highlight hologram based on a digital object performs point sampling on the object and represents each sampled point as a geometric patch. A set of geometric patches corresponding to sampled points from the object are fabricated into a substrate. A paraboloid patch may be used for reflective substrates while a hyperboloid may be used for transmissive substrates. To avoid specifying overlapping patches, which are impractical to fabricate, certain of the sample points may be merged. An output set of grooves is saved and may be used to specify fabrication of a highlight hologram on the physical substrate.
摘要翻译： 基于数字对象制造高光全息图的技术对物体进行点取样，并将每个采样点表示为几何补片。 将对应于来自物体的采样点的一组几何斑块制成基底。 抛物面贴片可以用于反射基板，而双曲面可以用于透射基底。 为了避免指定重叠的补丁，这些补丁是不切合实际的，可能会合并某些采样点。 输出的一组凹槽被保存并且可以用于指定物理基板上的高光全息图的制造。
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公开(公告)号：US09113043B1
公开(公告)日：2015-08-18
申请号：US13317658
申请日：2011-10-24
CPC分类号： H04N7/18 , G02B27/0172 , G02B2027/0134 , G02B2027/0138 , G02B2027/0178 , G06T3/0093 , G06T15/06 , G06T15/08 , G06T2200/04 , G06T2207/10004 , G06T2207/10016 , G06T2210/61 , G06T2219/2008 , G09G5/00 , H04N13/128 , H04N13/239 , H04N13/271 , H04N13/275 , H04N13/282 , H04N13/31 , H04N13/32 , H04N13/339 , H04N13/349 , H04N13/395 , H04N2013/0081 , H04N2013/0092
摘要： Methods and systems for generating stereoscopic content with granular control over binocular disparity based on multi-perspective imaging from representations of light fields are provided. The stereoscopic content is computed as piecewise continuous cuts through a representation of a light field, minimizing an energy reflecting prescribed parameters such as depth budget, maximum binocular disparity gradient, desired stereoscopic baseline. The methods and systems may be used for efficient and flexible stereoscopic post-processing, such as reducing excessive binocular disparity while preserving perceived depth or retargeting of already captured scenes to various view settings. Moreover, such methods and systems are highly useful for content creation in the context of multi-view autostereoscopic displays and provide a novel conceptual approach to stereoscopic image processing and post-production.
摘要翻译： 提供了基于从光场表示的多视角成像产生具有对双目视差的细粒度控制的立体内容的方法和系统。 立体内容被计算为通过光场的表示的分段连续切割，最小化反映规定参数的能量，例如深度预算，最大双眼视差梯度，期望的立体基线。 方法和系统可以用于有效和灵活的立体后处理，例如减少过度的双目视差，同时保持感测深度或将已捕获的场景重新定位到各种视图设置。 此外，这种方法和系统对于在多视点自动立体显示器的背景下的内容创建非常有用，并且提供了一种用于立体图像处理和后期制作的新颖的概念方法。
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49.发明授权Multi-layer plenoptic displays that combine multiple emissive and light modulating planes 有权组合多个发射和光调制平面的多层全光显示器公开(公告)号：US08643684B2
公开(公告)日：2014-02-04
申请号：US13184693
申请日：2011-07-18
IPC分类号： G09G5/02
CPC分类号： G02B27/2214 , G02B27/2278 , H04N13/31 , H04N13/346 , H04N13/351 , H04N13/363
摘要： A multi-planar plenoptic display assembly is provided that includes multiple spatially-varying light emitting and light modulating planes. The display assembly includes at least one light emitting device and may include, but does not require, a modulating device used in conjunction according to display methods taught herein to display light field data. A display assembly controller may be used to render a light field with depth into a multi-planar plenoptic display assembly by assigning decomposed portions of the light field to the display assembly for display or presentation by differing ones of the emitting elements and by operating a modulating device to provide a parallax barrier. In one embodiment, a dynamic parallax barrier and a number of bi-state screens. Another embodiment uses a beam splitter to co-locate two pairs of autostereoscopic displays each including a projector projecting 3D content, a parallax barrier, and an emissive/projector element.
摘要翻译： 提供了包括多个空间变化的发光和光调制平面的多平面全光显示组件。 显示组件包括至少一个发光装置，并且可以包括但不需要根据本文教导的显示方法结合使用的调制装置来显示光场数据。 可以使用显示组件控制器来将具有深度的光场通过将光场的分解部分分配给显示组件以将深度的光场赋予多平面全光显示组件，以通过不同的发光元件进行显示或呈现，并且通过操作调制 设备提供视差屏障。 在一个实施例中，动态视差屏障和多个双状态屏幕。 另一实施例使用分束器来共同定位两对自动立体显示器，每对显示器包括投影3D内容的投影仪，视差屏障和发射/投影仪元件。
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50.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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