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1. 发明授权

US07639250B2 Sketching reality 失效
标题翻译：草绘现实
公开(公告)号：US07639250B2
公开(公告)日：2009-12-29
申请号：US11554970
申请日：2006-10-31
申请人： Ying-Qing Xu , Sing Bing Kang , Heung-Yeung Shum , Xuejin Chen
发明人： Ying-Qing Xu , Sing Bing Kang , Heung-Yeung Shum , Xuejin Chen
IPC分类号： G06T15/00
CPC分类号： G06T15/20 , G06T7/543 , G06T15/02 , G06T17/00 , G06T19/20 , G06T2200/08 , G06T2219/2012 , G06T2219/2021 , G06T2219/2024
摘要： Systems and methods for sketching reality are described. In one aspect, a set of vector primitives is identified from a 2-D sketch. In one implementation, the 2-D sketch is hand-drawn by a user. A 2.5D geometry model is automatically generated from the vector primitives. The 2.5D geometry model is automatically rendered and presented to a user. In one implementation, the user provides 2-D sketch-based user inputs to modify one or more of lighting position, lighting direction, lighting intensity, texture, color, and geometry of the presentation.
摘要翻译：描述了绘制现实的系统和方法。在一个方面，从2-D草图识别一组矢量基元。在一个实现中，2-D草图由用户手绘。从矢量基元自动生成2.5D几何模型。 2.5D几何模型自动呈现给用户。在一个实现中，用户提供基于2D草图的用户输入来修改演示的照明位置，照明方向，照明强度，纹理，颜色和几何形状中的一个或多个。

2. 发明授权

US06985156B2 System and process for optimal texture map reconstruction from multiple views 失效
标题翻译：用于从多个视图获得最佳纹理贴图重建的系统和过程
公开(公告)号：US06985156B2
公开(公告)日：2006-01-10
申请号：US10875741
申请日：2004-06-23
申请人： Lifeng Wang , Sing Bing Kang , Richard Szeliski , Heung-Yeung Shum , Baining Guo
发明人： Lifeng Wang , Sing Bing Kang , Richard Szeliski , Heung-Yeung Shum , Baining Guo
IPC分类号： G09G5/00
CPC分类号： G06T11/001
摘要： A system and process for reconstructing optimal texture maps from multiple views of a scene is described. In essence, this reconstruction is based on the optimal synthesis of textures from multiple sources. This is generally accomplished using basic image processing theory to derive the correct weights for blending the multiple views. Namely, the steps of reconstructing, warping, prefiltering, and resampling are followed in order to warp reference textures to a desired location, and to compute spatially-variant weights for optimal blending. These weights take into consideration the anisotropy in the texture projection and changes in sampling frequency due to foreshortening. The weights are combined and the computation of the optimal texture is treated as a restoration problem, which involves solving a linear system of equations. This approach can be incorporated in a variety of applications, such as texturing of 3D models, analysis by synthesis methods, super-resolution techniques, and view-dependent texture mapping.
摘要翻译：描述用于从场景的多个视图重建最佳纹理图的系统和过程。实质上，这种重建是基于来自多个源的纹理的最佳合成。这通常使用基本图像处理理论来实现，以导出用于混合多个视图的正确权重。即，遵循重构，翘曲，预过滤和重采样的步骤，以便将参考纹理扭曲到期望的位置，并计算用于最佳混合的空间变体权重。这些权重考虑到纹理投影中的各向异性和由于缩短引起的采样频率的变化。权重相结合，最优纹理的计算被视为恢复问题，其涉及求解线性方程组。这种方法可以并入各种应用中，例如3D模型的纹理化，通过合成方法的分析，超分辨率技术和视图相关的纹理映射。

3. 发明授权

US07808532B2 Strategies for extracting foreground information using flash and no-flash image pairs 有权
标题翻译：使用闪存和无闪存映像对提取前台信息的策略
公开(公告)号：US07808532B2
公开(公告)日：2010-10-05
申请号：US11807448
申请日：2007-05-29
申请人： Jian Sun , Jian Sun , Sing Bing Kang , Xiaoou Tang , Heung-Yeung Shum
发明人： Jian Sun , Jian Sun , Sing Bing Kang , Xiaoou Tang , Heung-Yeung Shum
IPC分类号： H04N9/73
CPC分类号： H04N9/76 , G06T7/11 , G06T7/143 , G06T7/194 , G06T2207/10144 , H04N5/23232
摘要： A flash-based strategy is used to separate foreground information from background information within image information. In this strategy, a first image is taken without the use of flash. A second image is taken of the same subject matter with the use of flash. The foreground information in the flash image is illuminated by the flash to a much greater extent than the background information. Based on this property, the strategy applies processing to extract the foreground information from the background information. The strategy supplements the flash information by also taking into consideration motion information and color information.
摘要翻译：基于闪存的策略用于将前景信息与图像信息中的背景信息分离。在这个策略中，第一个图像是不使用闪光灯的。使用闪光灯拍摄相同主题的第二张照片。闪光灯中的前景信息被闪光灯照亮到比背景信息更大的程度。基于此属性，该策略应用处理从背景信息中提取前景信息。该策略通过考虑运动信息和颜色信息来补充闪光信息。

4. 发明授权

US07343039B2 System and process for generating representations of objects using a directional histogram model and matrix descriptor 有权
标题翻译：使用方向直方图模型和矩阵描述符生成对象表示的系统和过程
公开(公告)号：US07343039B2
公开(公告)日：2008-03-11
申请号：US10660819
申请日：2003-09-09
申请人： Xinguo Liu , Sing Bing Kang , Heung-Yeung Shum
发明人： Xinguo Liu , Sing Bing Kang , Heung-Yeung Shum
IPC分类号： G06K9/00
CPC分类号： G06K9/50 , G06K9/00201 , G06K9/4647
摘要： A system and process for determining the similarity in the shape of objects is presented that generates a novel shape representation called a directional histogram model. This shape representative captures the shape variations of an object with viewing direction, using thickness histograms. The resulting directional histogram model is substantially invariant to scaling and translation. A matrix descriptor can also be derived by applying the spherical harmonic transform to the directional histogram model. The resulting matrix descriptor is substantially invariant to not only scaling and translation, but rotation as well. The matrix descriptor is also robust with respect to local modification or noise, and able to readily distinguish objects with different global shapes. The typical applications of the directional histogram model and matrix descriptor include recognizing 3D solid shapes, measuring the similarity between different objects and shape similarity based object retrieval.
摘要翻译：提出了一种用于确定物体形状相似度的系统和过程，其产生称为方向直方图模型的新颖形状表示。该形状代表使用厚度直方图捕获具有观察方向的对象的形状变化。所得到的方向直方图模型对缩放和平移基本上是不变的。还可以通过将球谐函数变换应用于方向直方图模型来导出矩阵描述符。所得到的矩阵描述符不仅不仅缩放和平移，而且旋转也是不变的。矩阵描述符在本地修改或噪声方面也是鲁棒的，并且能够容易地区分具有不同全局形状的对象。方向直方图模型和矩阵描述符的典型应用包括识别3D实体形状，测量不同对象之间的相似度和基于形状相似度的对象检索。

5. 发明申请

US20050285872A1 System and process for optimal texture map reconstruction from multiple views 有权
标题翻译：用于从多个视图获得最佳纹理贴图重建的系统和过程
公开(公告)号：US20050285872A1
公开(公告)日：2005-12-29
申请号：US11192639
申请日：2005-07-28
申请人： Lifeng Wang , Sing Bing Kang , Richard Szeliski , Heung-Yeung Shum , Baining Guo
发明人： Lifeng Wang , Sing Bing Kang , Richard Szeliski , Heung-Yeung Shum , Baining Guo
IPC分类号： G06T15/20 , G09G5/00
CPC分类号： G06T15/04
摘要： A system and process for reconstructing optimal texture maps from multiple views of a scene is described. In essence, this reconstruction is based on the optimal synthesis of textures from multiple sources. This is generally accomplished using basic image processing theory to derive the correct weights for blending the multiple views. Namely, the steps of reconstructing, warping, prefiltering, and resampling are followed in order to warp reference textures to a desired location, and to compute spatially-variant weights for optimal blending. These weights take into consideration the anisotropy in the texture projection and changes in sampling frequency due to foreshortening. The weights are combined and the computation of the optimal texture is treated as a restoration problem, which involves solving a linear system of equations. This approach can be incorporated in a variety of applications, such as texturing of 3D models, analysis by synthesis methods, super-resolution techniques, and view-dependent texture mapping.
摘要翻译：描述用于从场景的多个视图重建最佳纹理图的系统和过程。实质上，这种重建是基于来自多个源的纹理的最佳合成。这通常使用基本图像处理理论来实现，以导出用于混合多个视图的正确权重。即，遵循重构，翘曲，预过滤和重采样的步骤，以便将参考纹理扭曲到期望的位置，并计算用于最佳混合的空间变体权重。这些权重考虑到纹理投影中的各向异性和由于缩短引起的采样频率的变化。权重相结合，最优纹理的计算被视为恢复问题，其涉及求解线性方程组。这种方法可以并入各种应用中，例如3D模型的纹理化，通过合成方法的分析，超分辨率技术和视图相关的纹理映射。

6. 发明申请

US20080297621A1 Strategies for extracting foreground information using flash and no-flash image pairs 有权
标题翻译：使用闪存和无闪存映像对提取前台信息的策略
公开(公告)号：US20080297621A1
公开(公告)日：2008-12-04
申请号：US11807448
申请日：2007-05-29
申请人： Jian Sun , Jian Sun , Sing Bing Kang , Xiaoou Tang , Heung-Yeung Shum
发明人： Jian Sun , Jian Sun , Sing Bing Kang , Xiaoou Tang , Heung-Yeung Shum
IPC分类号： H04N9/73
CPC分类号： H04N9/76 , G06T7/11 , G06T7/143 , G06T7/194 , G06T2207/10144 , H04N5/23232
摘要： A flash-based strategy is used to separate foreground information from background information within image information. In this strategy, a first image is taken without the use of flash. A second image is taken of the same subject matter with the use of flash. The foreground information in the flash image is illuminated by the flash to a much greater extent than the background information. Based on this property, the strategy applies processing to extract the foreground information from the background information. The strategy supplements the flash information by also taking into consideration motion information and color information.
摘要翻译：基于闪存的策略用于将前景信息与图像信息中的背景信息分离。在这个策略中，第一个图像是不使用闪光灯的。使用闪光灯拍摄相同主题的第二张照片。闪光灯中的前景信息被闪光灯照亮到比背景信息更大的程度。基于此属性，该策略应用处理从背景信息中提取前景信息。该策略通过考虑运动信息和颜色信息来补充闪光信息。

7. 发明授权

US07205998B2 System and process for optimal texture map reconstruction from multiple views 有权
标题翻译：用于从多个视图获得最佳纹理贴图重建的系统和过程
公开(公告)号：US07205998B2
公开(公告)日：2007-04-17
申请号：US11192639
申请日：2005-07-28
申请人： Lifeng Wang , Sing Bing Kang , Richard Szeliski , Heung-Yeung Shum , Baining Guo
发明人： Lifeng Wang , Sing Bing Kang , Richard Szeliski , Heung-Yeung Shum , Baining Guo
IPC分类号： G09G5/00
CPC分类号： G06T15/04
摘要： A system and process for reconstructing optimal texture maps from multiple views of a scene is described. In essence, this reconstruction is based on the optimal synthesis of textures from multiple sources. This is generally accomplished using basic image processing theory to derive the correct weights for blending the multiple views. Namely, the steps of reconstructing, warping, prefiltering, and resampling are followed in order to warp reference textures to a desired location, and to compute spatially-variant weights for optimal blending. These weights take into consideration the anisotropy in the texture projection and changes in sampling frequency due to foreshortening. The weights are combined and the computation of the optimal texture is treated as a restoration problem, which involves solving a linear system of equations. This approach can be incorporated in a variety of applications, such as texturing of 3D models, analysis by synthesis methods, super-resolution techniques, and view-dependent texture mapping.
摘要翻译：描述用于从场景的多个视图重建最佳纹理图的系统和过程。实质上，这种重建是基于来自多个源的纹理的最佳合成。这通常使用基本图像处理理论来实现，以导出用于混合多个视图的正确权重。即，遵循重构，翘曲，预过滤和重采样的步骤，以便将参考纹理扭曲到期望的位置，并计算用于最佳混合的空间变体权重。这些权重考虑到纹理投影中的各向异性和由于缩短引起的采样频率的变化。权重相结合，最优纹理的计算被视为恢复问题，其涉及求解线性方程组。这种方法可以并入各种应用中，例如3D模型的纹理化，通过合成方法的分析，超分辨率技术和视图相关的纹理映射。

8. 发明授权

US06999095B2 System and process for optimal texture map reconstruction from multiple views 失效
公开(公告)号：US06999095B2
公开(公告)日：2006-02-14
申请号：US10983193
申请日：2004-11-05
申请人： Lifeng Wang , Sing Bing Kang , Richard Szeliski , Heung-Yeung Shum , Baining Guo
发明人： Lifeng Wang , Sing Bing Kang , Richard Szeliski , Heung-Yeung Shum , Baining Guo
IPC分类号： G09G5/00
CPC分类号： G06T11/001
摘要： A system and process for reconstructing optimal texture maps from multiple views of a scene is described. In essence, this reconstruction is based on the optimal synthesis of textures from multiple sources. This is generally accomplished using basic image processing theory to derive the correct weights for blending the multiple views. Namely, the steps of reconstructing, warping, prefiltering, and resampling are followed in order to warp reference textures to a desired location, and to compute spatially-variant weights for optimal blending. These weights take into consideration the anisotropy in the texture projection and changes in sampling frequency due to foreshortening. The weights are combined and the computation of the optimal texture is treated as a restoration problem, which involves solving a linear system of equations. This approach can be incorporated in a variety of applications, such as texturing of 3D models, analysis by synthesis methods, super-resolution techniques, and view-dependent texture mapping.

9. 发明授权

US06825850B2 System and process for optimal texture map reconstruction from multiple views 有权
公开(公告)号：US06825850B2
公开(公告)日：2004-11-30
申请号：US10283562
申请日：2002-10-30
申请人： Lifeng Wang , Sing Bing Kang , Richard Szeliski , Heung-Yeung Shum , Baining Guo
发明人： Lifeng Wang , Sing Bing Kang , Richard Szeliski , Heung-Yeung Shum , Baining Guo
IPC分类号： G09G500
CPC分类号： G06T11/001
摘要： A system and process for reconstructing optimal texture maps from multiple views of a scene is described. In essence, this reconstruction is based on the optimal synthesis of textures from multiple sources. This is generally accomplished using basic image processing theory to derive the correct weights for blending the multiple views. Namely, the steps of reconstructing, warping, prefiltering, and resampling are followed in order to warp reference textures to a desired location, and to compute spatially-variant weights for optimal blending. These weights take into consideration the anisotropy in the texture projection and changes in sampling frequency due to foreshortening. The weights are combined and the computation of the optimal texture is treated as a restoration problem, which involves solving a linear system of equations. This approach can be incorporated in a variety of applications, such as texturing of 3D models, analysis by synthesis methods, super-resolution techniques, and view-dependent texture mapping.

10. 发明授权

US07724952B2 Object matting using flash and no-flash images 有权
标题翻译：使用闪光灯和无闪光灯图像的对象消光
公开(公告)号：US07724952B2
公开(公告)日：2010-05-25
申请号：US11434567
申请日：2006-05-15
申请人： Heung-Yeung Shum , Jian Sun , Sing Bing Kang , Yin Li
发明人： Heung-Yeung Shum , Jian Sun , Sing Bing Kang , Yin Li
IPC分类号： G06K9/34
CPC分类号： H04N5/275 , H04N5/2354
摘要： Foreground object matting uses flash/no-flash images pairs to obtain a flash-only image. A trimap is obtained from the flash-only image. A joint Bayesian algorithm uses the flash-only image, the trimap and one of the image of the scene taken without the flash or the image of the scene taken with the flash to generate a high quality matte that can be used to extract the foreground from the background.
摘要翻译：前景对象消光使用闪光/非闪光图像对来获取闪光灯图像。从闪光灯图像获得一个微调。联合贝叶斯算法使用仅闪光图像，微调和没有闪光灯拍摄的场景中的一个图像或用闪光灯拍摄的场景的图像，以生成可用于从的背景。

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