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61. 发明授权

US07602398B2 Decorating surfaces with textures 失效
标题翻译：用纹理装饰表面
公开(公告)号：US07602398B2
公开(公告)日：2009-10-13
申请号：US11045868
申请日：2005-01-28
申请人： Kun Zhou , Baining Guo , Heung-Yeung Shum , Lifeng Wang , Yasuyuki Matsushita
发明人： Kun Zhou , Baining Guo , Heung-Yeung Shum , Lifeng Wang , Yasuyuki Matsushita
IPC分类号： G09G5/00
CPC分类号： G06T15/04 , G06T17/20
摘要： Surfaces can be decorated with texture tiling and/or texture painting using one or more sample textures, such as BTFs. In a described implementation of texture tiling, a patch-based BTF synthesis algorithm is utilized. In an example embodiment, a mesh of a target surface is re-sampled to produce a dense mesh such that there is a one-to-one correspondence between vertices of the dense mesh and pixels of an image. Patch matching is then employed with a working image that corresponds to a working patch. In an example embodiment, the patch matching is effectuated using translations and rotations of the sample texture. In a described implementation of texture painting, irregular feature(s) of a sample texture are synthesized onto a target surface. In an example embodiment, user-specified constraints as to a desired foreground feature of a sample texture and an intended foreground region of a targeted surface are factored into a graphcut operation.
摘要翻译：表面可以使用纹理拼贴和/或使用一个或多个样本纹理（如BTF）的纹理绘画进行装饰。在所描述的纹理平铺的实现中，使用基于块的BTF合成算法。在一个示例性实施例中，对目标表面的网格进行重新采样以产生密集网格，使得在密集网格的顶点和图像的像素之间存在一一对应关系。然后使用补丁匹配与对应于工作补丁的工作图像。在示例实施例中，使用样本纹理的平移和旋转来实现斑块匹配。在所描述的纹理绘画实现中，样本纹理的不规则特征被合成到目标表面上。在示例性实施例中，关于样本纹理的期望前景特征和目标表面的预期前景区域的用户指定约束被考虑到图形切割操作中。

62. 发明授权

US07599547B2 Symmetric stereo model for handling occlusion 失效
标题翻译：用于处理遮挡的对称立体模型
公开(公告)号：US07599547B2
公开(公告)日：2009-10-06
申请号：US11289907
申请日：2005-11-30
申请人： Jian Sun , Yin Li , Sing Bing Kang , Heung-Yeung Shum
发明人： Jian Sun , Yin Li , Sing Bing Kang , Heung-Yeung Shum
IPC分类号： G06K9/00 , G06T15/00 , G01C3/14
CPC分类号： G06K9/32
摘要： The present symmetric stereo matching technique provides a method for iteratively estimating a minimum energy for occlusion and disparity using belief propagation. The minimum energy is based on an energy minimization framework in which a visibility constraint is embedded. By embedding the visibility constraint, the present symmetric stereo matching technique treats both images equally, instead of treating one as a reference image. The visibility constraint ensures that occlusion in one view and the disparity in another view are consistent.
摘要翻译：本对称立体匹配技术提供了一种使用置信传播迭代估计遮挡和视差的最小能量的方法。最小能量基于嵌入可见性约束的能量最小化框架。通过嵌入可见度约束，本对称立体匹配技术可以平等对待两个图像，而不是将其视为参考图像。可见性约束确保一个视图中的遮挡和另一个视图中的视差是一致的。

63. 发明授权

US07589723B2 Real-time rendering of partially translucent objects 有权
标题翻译：实时渲染部分半透明物体
公开(公告)号：US07589723B2
公开(公告)日：2009-09-15
申请号：US11189491
申请日：2005-07-25
申请人： Lifeng Wang , Xu Yang , Baining Guo , Heung-Yeung Shum
发明人： Lifeng Wang , Xu Yang , Baining Guo , Heung-Yeung Shum
IPC分类号： G06T15/50 , G06T15/60 , G09G5/00
CPC分类号： G06T15/50
摘要： Rendering of a partially translucent object is performed using a set of parameter maps derived from data measuring reflectance and transmittance of light received at the surface of the partially translucent object. Data is captured from an actual object being modeled, rather than estimated based on internal structure and composition. Parameter maps relating albedo, thickness variation, and specular intensity and roughness are stored as textures to facilitate rendering. In addition, realistic illumination from high energy sources such as sunlight is effected by separating light into low frequency and high frequency components. Low frequency components are rendered by precomputed radiance transfer. High frequency components, which are not modeled well by precomputed radiance transfer, are modeled using a light visibility convolution integral to generate light visibility maps for positions of the high frequency light source. Contributions from the different frequency components are combined to yield a realistic appearance.
摘要翻译：使用从测量在部分半透明物体的表面处接收的光的反射率和透射率的数据导出的一组参数图来执行部分半透明物体的渲染。数据从被建模的实际对象中获取，而不是基于内部结构和组合来估计。将反照率，厚度变化以及镜面强度和粗糙度相关的参数图存储为纹理以便于渲染。此外，通过将光分离成低频和高频分量来实现来自诸如阳光的高能源的现实照明。低频分量通过预先计算的辐射传输来渲染。通过预先计算的辐射传输良好地建模的高频分量使用光可见度卷积积分来建模，以产生高频光源的位置的光可见度图。来自不同频率分量的贡献被组合以产生现实的外观。

64. 发明授权

US07545375B2 View-dependent displacement mapping 有权
标题翻译：视图相关的位移映射
公开(公告)号：US07545375B2
公开(公告)日：2009-06-09
申请号：US11679275
申请日：2007-02-27
申请人： Lifeng Wang , Xi Wang , Xin Tong , Baining Guo , Heung-Yeung Shum
发明人： Lifeng Wang , Xi Wang , Xin Tong , Baining Guo , Heung-Yeung Shum
IPC分类号： G06T15/10
CPC分类号： G06T15/04
摘要： A computer implemented method for generating a representation of structure for use in rendering a synthesized image is provided. The representation is a view-dependent displacement mapping that represents displacements along a viewing direction. This view dependency allows the representation to be used to determine self shadows as well as shading, occlusion and silhouettes when used during rendering for synthesis.
摘要翻译：提供了一种用于生成用于渲染合成图像的结构的表示的计算机实现的方法。该表示是视图相关的位移映射，其表示沿观察方向的位移。该视图依赖性允许在用于合成的渲染期间使用表示来确定自身阴影以及阴影，遮挡和剪影。

65. 发明授权

US07542073B2 Scene capturing and view rendering based on a longitudinally aligned camera array 有权
公开(公告)号：US07542073B2
公开(公告)日：2009-06-02
申请号：US10970233
申请日：2004-10-21
申请人： Jiang Li , Heung-Yeung Shum
发明人： Jiang Li , Heung-Yeung Shum
IPC分类号： H04N5/225 , H04N7/00 , H04N5/232
CPC分类号： H04N13/279 , H04N13/221 , H04N13/243
摘要： In one embodiment, a longitudinal camera array is rotated through a capture cylinder, with each camera in the array capturing multiple images as the array rotates. These images can be looking outward along the radials of the cylinder, or alternatively looking tangential to the cylinder. The longitudinal camera array allows the surrounding scene to be captured from multiple different planes that are substantially parallel to the ends of the capture cylinder, allowing for more accurate subsequent rendering of the scene. A view of the scene can be subsequently rendered by determining a location and direction of view of an observer, and then selecting one or more of the multiple lateral and longitudinally adjacent capture images, as well as one or more pixels within that capture image(s), to use to determine a display value for the pixel.

66. 发明授权

US07538797B2 Scene capturing and view rendering based on a longitudinally aligned camera array 有权
标题翻译：基于纵向对齐的摄像机阵列的场景捕获和视图渲染
公开(公告)号：US07538797B2
公开(公告)日：2009-05-26
申请号：US10970511
申请日：2004-10-21
申请人： Jiang Li , Heung-Yeung Shum
发明人： Jiang Li , Heung-Yeung Shum
IPC分类号： H04N5/225 , H04N7/00 , H04N5/232
CPC分类号： H04N13/279 , H04N13/221 , H04N13/243
摘要： In one embodiment, a longitudinal camera array is rotated through a capture cylinder, with each camera in the array capturing multiple images as the array rotates. These images can be looking outward along the radials of the cylinder, or alternatively looking tangential to the cylinder. The longitudinal camera array allows the surrounding scene to be captured from multiple different planes that are substantially parallel to the ends of the capture cylinder, allowing for more accurate subsequent rendering of the scene. A view of the scene can be subsequently rendered by determining a location and direction of view of an observer, and then selecting one or more of the multiple lateral and longitudinally adjacent capture images, as well as one or more pixels within that capture image(s), to use to determine a display value for the pixel.
摘要翻译：在一个实施例中，纵向相机阵列旋转通过捕获圆筒，阵列中的每个相机在阵列中捕获多个图像。这些图像可以沿着圆柱体的径向向外看，或者与圆筒相切地看。纵向相机阵列允许从基本上平行于捕获圆筒的端部的多个不同平面捕获周围场景，从而允许更准确地随后渲染场景。可以随后通过确定观察者的位置和方向，然后选择多个横向和纵向相邻捕获图像中的一个或多个，以及该捕获图像内的一个或多个像素来呈现场景视图），用于确定像素的显示值。

67. 发明授权

US07537523B2 Dynamic player groups for interest management in multi-character virtual environments 有权
标题翻译：动态播放器组，用于多字符虚拟环境中的兴趣管理
公开(公告)号：US07537523B2
公开(公告)日：2009-05-26
申请号：US10882926
申请日：2004-06-30
申请人： Bo Zhang , Baining Guo , Heung-Yeung Shum
发明人： Bo Zhang , Baining Guo , Heung-Yeung Shum
IPC分类号： A63F9/24 , G06F15/16
CPC分类号： A63F13/358 , A63F13/12 , A63F13/57 , A63F2300/534 , A63F2300/535 , A63F2300/64
摘要： A method and apparatus improve the efficiency of simulating a virtual environment by filtering information about the virtual environment on a group basis instead of a character basis. The filtered information is sent to each client associated with a character in the group.
摘要翻译：一种方法和装置通过基于组而不是基于字符的过滤关于虚拟环境的信息来提高模拟虚拟环境的效率。被过滤的信息被发送到与组中的字符相关联的每个客户端。

68. 发明授权

US07505606B2 Detecting doctored images using camera response normality and consistency 有权
标题翻译：使用相机响应的正常性和一致性来检测图像
公开(公告)号：US07505606B2
公开(公告)日：2009-03-17
申请号：US11132865
申请日：2005-05-19
申请人： Zhouchen Lin , Rongrong Wang , Xiaoou Tang , Heung-Yeung Shum
发明人： Zhouchen Lin , Rongrong Wang , Xiaoou Tang , Heung-Yeung Shum
IPC分类号： G06K9/00
CPC分类号： G06K9/00 , G06K9/00899
摘要： Embodiments of the invention determine whether an image has been altered. Sets of patches are selected in the image, and corresponding inverse response functions are provided to a support vector machine (SVM). The support vector machine is trained with exemplary normal and abnormal inverse response functions. Once trained, the support vector machine analyzes inverse response functions corresponding to a suspected image. The support vector machine determines if the inverse response functions are normal or abnormal by analyzing a set of features. In one embodiment, features include measures for monotonic characteristics, fluctuation characteristics, and divergence characteristics of the red, green, and blue components of a tuple. Each tuple of inverse response functions is associated with a set of patches selected in the image.
摘要翻译：本发明的实施例确定图像是否已被改变。在图像中选择一组补丁，并将相应的反应函数提供给支持向量机（SVM）。支持向量机用示例性正常和异常的反应函数进行训练。训练后，支持向量机分析与疑似图像相对应的反应响应函数。支持向量机通过分析一组特征来确定逆响应函数是正常还是异常。在一个实施例中，特征包括用于元组的红，绿和蓝分量的单调特性，波动特性和发散特性的度量。反向响应函数的每个元组与在图像中选择的一组补丁相关联。

69. 发明授权

US07483553B2 Caricature exaggeration 有权
标题翻译：漫画夸张
公开(公告)号：US07483553B2
公开(公告)日：2009-01-27
申请号：US10812754
申请日：2004-03-29
申请人： Ying-Qing Xu , Heung-Yeung Shum , Michael Cohen , Lin Liang , Hua Zhong
发明人： Ying-Qing Xu , Heung-Yeung Shum , Michael Cohen , Lin Liang , Hua Zhong
IPC分类号： G06K9/00
CPC分类号： G06T11/00
摘要： Caricature exaggeration systems, engines, and methods create a drawing of a facial image, compare relationships among facial features in the drawing to corresponding relationships in facial images and corresponding caricatures in a database, and automatically exaggerate at least one relationship among facial features in the drawing based on the facial images and the corresponding caricatures in the database.
摘要翻译：漫画夸张系统，引擎和方法创建面部图像的图形，比较绘图中的面部特征与面部图像中的对应关系和数据库中相应漫画的关系，并自动夸大图中面部特征之间的至少一个关系基于面部图像和数据库中的相应漫画。

70. 发明申请

US20080240607A1 Image Deblurring with Blurred/Noisy Image Pairs 有权
标题翻译：图像消除与模糊/嘈杂的图像对
公开(公告)号：US20080240607A1
公开(公告)日：2008-10-02
申请号：US11961752
申请日：2007-12-20
申请人： Jian Sun , Heung-Yeung Shum
发明人： Jian Sun , Heung-Yeung Shum
IPC分类号： G06K9/40
CPC分类号： G06T5/003 , G06T5/50
摘要： Image deblurring with blurred/noisy image pairs is described. In one implementation, a system combines a blurred image with a corresponding noisy image of the same subject to create a high-quality deblurred image. The blurred/noisy image pair can be acquired by an inexpensive hand-held camera, e.g., in unfavorable low light conditions. An exemplary iterative process uses the blurred image and the noisy image at each step to produce the high-quality image. First, the system estimates the blur kernel of the blurred image using information from both the blurred and noisy images. Then, the system performs residual image deconvolution, which favors suppression of ringing artifacts. Finally, the system applies gain-controlled deconvolution to suppress remaining ringing artifacts in smooth image regions. The system iterates these steps to obtain the final high-quality image.
摘要翻译：描述了具有模糊/噪声图像对的图像去模糊。在一个实现中，系统将模糊图像与相同对象的对应噪声图像相结合，以创建高质量的去模糊图像。模糊/嘈杂的图像对可以由便宜的手持相机获取，例如在不利的低光条件下。示例性迭代过程在每个步骤使用模糊图像和噪声图像来产生高质量图像。首先，系统使用来自模糊和嘈杂图像的信息来估计模糊图像的模糊内核。然后，系统执行残差图像去卷积，有利于抑制振铃伪像。最后，系统采用增益控制去卷积来抑制平滑图像区域中的剩余振铃伪像。系统迭代这些步骤以获得最终的高质量图像。

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