-
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。
-
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。
-
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。
-
4.发明申请公开(公告)号：US20120053716A1
公开(公告)日：2012-03-01
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。
-
公开(公告)号：US07319467B2
公开(公告)日：2008-01-15
申请号：US11092426
申请日：2005-03-29
申请人： Tim Weyrich , Wojciech Matusik , Hanspeter Pfister , Henrik Wann Jensen , Wai Kit Addy Ngan , Markus Gross
发明人： Tim Weyrich , Wojciech Matusik , Hanspeter Pfister , Henrik Wann Jensen , Wai Kit Addy Ngan , Markus Gross
IPC分类号： G06T15/50
CPC分类号： G06T15/50
摘要： A face is scanned to obtain a three-dimensional geometry of the face, images are also acquired of the face, and subsurface scattering of the face is measured. A translucency map is determined from the subsurface reflectance. A total surface reflectance and a normal map are estimated from the three-dimensional geometry and the images, and diffuse reflectance is estimated using the total reflectance. An albedo map is determined from the diffuse reflectance. The diffuse reflectance is subtracted from the total reflectance to obtain a surface reflectance. A set of bi-directional reflectance functions is fitted to the surface reflectance. Then, the set of bi-directional reflectance distribution functions, the albedo map, and the translucency map are combined to form a skin reflectance model of the face.
摘要翻译： 扫描面部以获得脸部的三维几何图像，并且还获取脸部的图像，并且测量脸部的表面下散射。 从地下反射率确定半透明度图。 从三维几何图像和图像估计总表面反射率和法线图，并且使用总反射率来估计漫反射。 从漫反射率确定反照率图。 从总反射率中减去漫反射，得到表面反射率。 一组双向反射函数适合表面反射率。 然后，将该组双向反射分布函数，反照率图和半透明度图组合，以形成面部的皮肤反射率模型。
-
公开(公告)号：US20070229653A1
公开(公告)日：2007-10-04
申请号：US11397227
申请日：2006-04-04
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。
-
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。
-
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。
-
9.发明申请Apparatus and method for acquiring and combining images of a scene with multiple optical characteristics at multiple resolutions 审中-公开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
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。
-
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。
-
-
-
-
-
-
-
-
-
搜索结果
73 条记录 (耗时 0.029 秒)
