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1.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。
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2.发明申请Method and System for Determining Poses of Objects from Range Images Using Adaptive Sampling of Pose Spaces 有权使用姿势空间的自适应采样从范围图像确定对象姿态的方法和系统公开(公告)号：US20090074238A1
公开(公告)日：2009-03-19
申请号：US12238618
申请日：2008-09-26
IPC分类号： G06K9/00
CPC分类号： G06T7/77 , G06T7/75 , G06T2200/28 , G06T2207/10028 , G06T2207/20104 , G06T2207/30164
摘要： A method for determining a pose of an object from a range image is presented. A distribution of poses for an object is determined from a model of the object. A set of reference poses is selected according to the distribution, such that more reference poses are selected for more probable poses than less probable poses. A reference image for each reference pose is generated, and the reference pose used to generate the reference image that best matches a range image including the object is assigned as the pose of the object.
摘要翻译： 提出了一种从范围图像中确定对象姿态的方法。 从对象的模型确定对象的姿势分布。 根据分布选择一组参考姿势，使得为更可能的姿势选择更多的参考姿势而不是可能的姿势。 生成每个参考姿势的参考图像，并且将用于生成与包括对象的范围图像最匹配的参考图像的参考姿势分配为对象的姿态。
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公开(公告)号：US07324594B2
公开(公告)日：2008-01-29
申请号：US10723035
申请日：2003-11-26
IPC分类号： H04N7/12
CPC分类号： G06T9/001 , G06T9/00 , H04N19/20 , H04N19/597
摘要： A system encodes videos acquired of a moving object in a scene by multiple fixed cameras. Camera calibration data of each camera are first determined. The camera calibration data of each camera are associated with the corresponding video. A segmentation mask for each frame of each video is determined. The segmentation mask identifies only foreground pixels in the frame associated with the object. A shape encoder then encodes the segmentation masks, a position encoder encodes a position of each pixel, and a color encoder encodes a color of each pixel. The encoded data can be combined into a single bitstream and transferred to a decoder. At the decoder, the bitstream is decoded to an output video having an arbitrary user selected viewpoint. A dynamic 3D point model defines a geometry of the moving object. Splat sizes and surface normals used during the rendering can be explicitly determined by the encoder, or explicitly by the decoder.
摘要翻译： 系统通过多个固定摄像机对场景中的移动物体所获取的视频进行编码。 首先确定每个摄像机的摄像机校准数据。 每个摄像机的摄像机校准数据与相应的视频相关联。 确定每个视频的每个帧的分割掩码。 分割掩码仅识别与对象相关联的帧中的前景像素。 然后，形状编码器对分割掩模进行编码，位置编码器对每个像素的位置进行编码，并且颜色编码器对每个像素的颜色进行编码。 编码数据可以组合成单个比特流并传送到解码器。 在解码器处，比特流被解码为具有任意用户选择的视点的输出视频。 动态3D点模型定义了移动物体的几何形状。 在渲染期间使用的Splat尺寸和表面法线可以由编码器显式确定，或者由解码器显式确定。
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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。
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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。
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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：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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8.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。
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公开(公告)号：US20060028474A1
公开(公告)日：2006-02-09
申请号：US10912724
申请日：2004-08-05
申请人： Hanspeter Pfister , Tim Weyrich , Markus Gross
发明人： Hanspeter Pfister , Tim Weyrich , Markus Gross
摘要： A method renders a model of an object by first acquiring, in an acquisition space, a reflectance field of the object. The reflectance field includes a set of reflectance images of the object and a point model of the object. The model is deformed in an object space to generate a deformed model. For each point of the deformed model in the object space, the set of the reflectance images is queried in the acquisition space to obtain reflectance coefficients for each point. Each point of the deformed model is then shaded according to the corresponding reflectance coefficients to generate an image of the object reflecting the deforming.
摘要翻译： 一种方法通过首先在采集空间中获取对象的反射场，从而呈现对象的模型。 反射场包括物体的一组反射图像和物体的点模型。 模型在对象空间中变形以生成变形模型。 对于对象空间中变形模型的每个点，在采集空间中查询反射率图像的集合，以获得每个点的反射系数。 然后根据相应的反射系数对变形模型的每个点进行遮蔽，以产生反映变形的物体的图像。
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公开(公告)号：US20050117019A1
公开(公告)日：2005-06-02
申请号：US10723035
申请日：2003-11-26
CPC分类号： G06T9/001 , G06T9/00 , H04N19/20 , H04N19/597
摘要： A system encodes videos acquired of a moving object in a scene by multiple fixed cameras. Camera calibration data of each camera are first determined. The camera calibration data of each camera are associated with the corresponding video. A segmentation mask for each frame of each video is determined. The segmentation mask identifies only foreground pixels in the frame associated with the object. A shape encoder then encodes the segmentation masks, a position encoder encodes a position of each pixel, and a color encoder encodes a color of each pixel. The encoded data can be combined into a single bitstream and transferred to a decoder. At the decoder, the bitstream is decoded to an output video having an arbitrary user selected viewpoint. A dynamic 3D point model defines a geometry of the moving object. Splat sizes and surface normals used during the rendering can be explicitly determined by the encoder, or explicitly by the decoder.
摘要翻译： 系统通过多个固定摄像机对场景中的移动物体所获取的视频进行编码。 首先确定每个摄像机的摄像机校准数据。 每个摄像机的摄像机校准数据与相应的视频相关联。 确定每个视频的每个帧的分割掩码。 分割掩码仅识别与对象相关联的帧中的前景像素。 然后，形状编码器对分割掩模进行编码，位置编码器对每个像素的位置进行编码，并且颜色编码器对每个像素的颜色进行编码。 编码数据可以组合成单个比特流并传送到解码器。 在解码器处，比特流被解码为具有任意用户选择的视点的输出视频。 动态3D点模型定义了移动物体的几何形状。 在渲染期间使用的Splat尺寸和表面法线可以由编码器显式确定，或者由解码器显式确定。
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