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21. 发明申请

US20080316202A1 DIRECT MANIPULATION OF SUBDIVISION SURFACES USING A GRAPHICS PROCESSING UNIT 失效
标题翻译：使用图形处理单元直接操纵子表面
公开(公告)号：US20080316202A1
公开(公告)日：2008-12-25
申请号：US11767427
申请日：2007-06-22
申请人： Kun Zhou , Heung-Yeung Shum , Baining Guo , Xin Huang , Weiwei Xu
发明人： Kun Zhou , Heung-Yeung Shum , Baining Guo , Xin Huang , Weiwei Xu
IPC分类号： G06T15/00
CPC分类号： G06T17/20
摘要： A graphics system allows for manipulation of a detail mesh for a subdivision surface. To deform the subdivision surface, the graphics system generates a corresponding deformed control mesh by attempting to satisfy both position constraints of the manipulation and Laplacian constraints for the detail mesh. After the deformed control mesh is generated, the deformed detail mesh can be generated by applying a subdivision function to the deformed control mesh to generate a deformed smooth mesh and then applying detail information to the deformed smooth mesh.
摘要翻译：图形系统允许操纵细分表面的细节网格。为了使细分表面变形，图形系统通过尝试满足操作的位置约束和细节网格的拉普拉斯约束来生成相应的变形控制网格。在生成变形控制网格之后，可以通过对变形的控制网格应用细分功能来生成变形的细节网格，以生成变形的平滑网格，然后将细节信息应用于变形的平滑网格。

22. 发明申请

US20080304740A1 Salient Object Detection 有权
标题翻译：突出物体检测
公开(公告)号：US20080304740A1
公开(公告)日：2008-12-11
申请号：US11759192
申请日：2007-06-06
申请人： Jian Sun , Tie Liu , Xiaoou Tang , Heung-Yeung Shum
发明人： Jian Sun , Tie Liu , Xiaoou Tang , Heung-Yeung Shum
IPC分类号： G06K9/00
CPC分类号： G06K9/3233 , G06K9/4638
摘要： Methods for detecting a salient object in an input image are described. For this, the salient object in an image may be defined using a set of local, regional, and global features including multi-scale contrast, center-surround histogram, and color spatial distribution. These features are optimally combined through conditional random field learning. The learned conditional random field is then used to locate the salient object in the image. The methods can also use image segmentation, where the salient object is separated from the image background.
摘要翻译：描述用于检测输入图像中的突出物体的方法。为此，可以使用一组局部，区域和全局特征来定义图像中的显着对象，包括多尺度对比度，中心环绕直方图和颜色空间分布。这些特征通过条件随机场学习进行最佳组合。然后使用学习的条件随机字段来定位图像中的显着对象。该方法还可以使用图像分割，其中显着对象与图像背景分离。

23. 发明授权

US07463769B2 Radiometric calibration from a single image 有权
标题翻译：单个图像的辐射校准
公开(公告)号：US07463769B2
公开(公告)日：2008-12-09
申请号：US11156988
申请日：2005-06-20
申请人： Stephen S. Lin , Baining Guo , Heung-Yeung Shum , Jinwei Gu
发明人： Stephen S. Lin , Baining Guo , Heung-Yeung Shum , Jinwei Gu
IPC分类号： G06K9/00
CPC分类号： H04N1/603 , G06T7/80 , G06T7/90
摘要： Radiometric calibration of an image capture device (e.g., a digital camera) using a single image is described. The single image may be a color image or a grayscale image. The calibration identifies and analyzes edge pixels of the image that correspond to an edge between two colors or grayscale levels of a scene. Intensity distributions of intensities measured from the single image are then analyzed. An inverse response function for the image capture device is determined based on the intensity distributions. For a color image, the radiometric calibration involves calculating an inverse response function that maps measured blended colors of edge pixels and the associated measured component colors into linear distributions. For a grayscale image, the radiometric calibration involves deriving an inverse response function that maps non-uniform histograms of measured intensities into uniform distributions of calibrated intensities.
摘要翻译：描述使用单个图像的图像捕获装置（例如，数码相机）的放射线校准。单个图像可以是彩色图像或灰度图像。校准识别和分析与场景的两种颜色或灰度级之间的边缘对应的图像的边缘像素。然后分析从单个图像测量的强度的强度分布。基于强度分布确定图像捕获装置的反应响应函数。对于彩色图像，辐射校准包括计算反向响应函数，其将边缘像素的测量混合颜色和相关联的测量分量颜色映射为线性分布。对于灰度图像，辐射校准涉及导出将测得的强度的不均匀直方图映射到校准强度的均匀分布的逆响应函数。

24. 发明授权

US07463296B2 Digital cameras with luminance correction 有权
标题翻译：具有亮度校正的数码相机
公开(公告)号：US07463296B2
公开(公告)日：2008-12-09
申请号：US10817008
申请日：2004-04-01
申请人： Jian Sun , Jiaya Jia , Heung-Yeung Shum
发明人： Jian Sun , Jiaya Jia , Heung-Yeung Shum
IPC分类号： H04N5/202 , H04N5/235
CPC分类号： H04N5/243 , G06T5/009 , G06T5/40 , G06T5/50 , G06T2207/10024 , G06T2207/10144 , H04N5/23248 , H04N5/2355
摘要： Techniques are disclosed to improve quality of images that may be blurred or underexposed (e.g., because of camera shake, taken in dim lighting conditions, or taken of high action scenes). The techniques may be implemented in a digital camera, digital video camera, or a digital camera capable of capturing video. In one described implementation, a digital camera includes an image sensor, a storage device, and a processing unit. The image sensor captures two images from a same scene which are stored on the storage device. The processing unit enhances the captured images with luminance correction.
摘要翻译：公开了提高可能模糊或曝光不足的图像质量的技术（例如，由于相机抖动，在昏暗的照明条件下拍摄或拍摄的高动作场景）。这些技术可以在能够捕获视频的数码相机，数字摄像机或数字照相机中实现。在一个描述的实施方案中，数字照相机包括图像传感器，存储装置和处理单元。图像传感器捕获存储在存储设备上的相同场景中的两个图像。处理单元通过亮度校正来增强拍摄图像。

25. 发明授权

US07450754B2 Radiometric calibration from a single image 有权
标题翻译：单个图像的辐射校准
公开(公告)号：US07450754B2
公开(公告)日：2008-11-11
申请号：US10809167
申请日：2004-03-23
申请人： Stephen S. Lin , Heung-Yeung Shum , Jinwei Gu
发明人： Stephen S. Lin , Heung-Yeung Shum , Jinwei Gu
IPC分类号： G06K9/00
CPC分类号： H04N1/603 , G06T7/80 , G06T7/90
摘要： A radiometric calibration system finds an inverse response function of a camera from a single digital image of a scene in which the actual colors of the scene are not known a priori. The system analyzes pixels of the image that correspond to an “edge” between two colors of the scene. These “edge” pixels represent a blended color formed from these two “component” colors, as measured by the camera. The system determines an inverse response function at least in part by: (a) finding suitable edge pixels; and (b) determining a function that maps the measured blended colors of edge pixels and their measured component colors into linear distributions. Reference data that includes predetermined inverse response functions of known cameras can be used in determining an inverse response function via a Bayesian Estimation.
摘要翻译：辐射校准系统从场景的实际颜色先前不知道的场景的单个数字图像中发现摄像机的反向响应功能。该系统分析对应于场景两种颜色之间的“边缘”的图像像素。这些“边缘”像素表示由相机测量的由这两个“分量”颜色形成的混合色。系统至少部分地通过以下方式确定反应响应函数：（a）找到合适的边缘像素; 和（b）确定将所测量的边缘像素的混合颜色及其测量的分量颜色映射成线性分布的函数。包括已知摄像机的预定反向响应功能的参考数据可以用于经由贝叶斯估计来确定反向响应函数。

26. 发明授权

US07433490B2 System and method for real time lip synchronization 有权
标题翻译：用于实时唇形同步的系统和方法
公开(公告)号：US07433490B2
公开(公告)日：2008-10-07
申请号：US11435122
申请日：2006-05-16
申请人： Ying Huang , Stephen Ssu-te Lin , Baining Guo , Heung-Yeung Shum
发明人： Ying Huang , Stephen Ssu-te Lin , Baining Guo , Heung-Yeung Shum
IPC分类号： G06K9/00 , G10L15/00
CPC分类号： G06K9/00335 , G10L2021/105
摘要： A novel method for synchronizing the lips of a sketched face to an input voice. The lip synchronization system and method approach is to use training video as much as possible when the input voice is similar to the training voice sequences. Initially, face sequences are clustered from video segments, then by making use of sub-sequence Hidden Markov Models, a correlation between speech signals and face shape sequences is built. From this re-use of video, the discontinuity between two consecutive output faces is decreased and accurate and realistic synthesized animations are obtained. The lip synchronization system and method can synthesize faces from input audio in real-time without noticeable delay. Since acoustic feature data calculated from audio is directly used to drive the system without considering its phonemic representation, the method can adapt to any kind of voice, language or sound.
摘要翻译：一种用于将草绘脸部的嘴唇同步到输入声音的新颖方法。唇部同步系统和方法方法是当输入的声音类似于训练声音序列时尽可能多地使用训练视频。最初，面部序列从视频片段聚类，然后通过利用子序列隐马尔可夫模型，构建了语音信号和面部形状序列之间的相关性。从这种视频的再次使用，两个连续的输出面之间的不连续性被降低，并且获得准确而逼真的合成动画。唇同步系统和方法可以实时地从输入音频合成面部，而没有明显的延迟。由于从音频计算的声学特征数据直接用于驱动系统而不考虑其音位表示，该方法可以适应任何种类的语音，语言或声音。

27. 发明授权

US07408545B1 Method and system for rendering concentric mosaics 有权
标题翻译：绘制同心马赛克的方法和系统
公开(公告)号：US07408545B1
公开(公告)日：2008-08-05
申请号：US09560828
申请日：2000-04-28
申请人： Heung-Yeung Shum , Min-Sheng Wu , Hong-Hui Sun
发明人： Heung-Yeung Shum , Min-Sheng Wu , Hong-Hui Sun
IPC分类号： G06T17/00
CPC分类号： G06T15/205
摘要： With an image-based rendering (IBR) system based on linear interpolated concentric mosaics, an observer is able to wander through a real or synthesized scene and have new view images (optionally including stereo images) of the scene rendered as the observer moves. According to one embodiment, multiple viewing rays are extended in a viewing direction from the image to be rendered at a view point. For viewing rays that do not coincide with captured images, an image is generate based on the captured images. The image is generated by interpolating between at least two captured images based on a constant distance to objects in the scene. The view images that are displayed can be mono or stereo (e.g., simulating a pair of eyes of the observer).
摘要翻译：利用基于线性内插同心马赛克的基于图像的渲染（IBR）系统，观察者能够通过真实或合成的场景漫游，并且随观察者移动而呈现的场景具有新的视图图像（可选地包括立体图像）。根据一个实施例，多个观看光线在观看方向上从在观察点呈现的图像延伸。为了观察与拍摄图像不一致的光线，基于捕获的图像生成图像。基于与场景中的对象的恒定距离，在至少两个拍摄图像之间进行内插来生成图像。显示的视图图像可以是单声道或立体声（例如，模拟观察者的一对眼睛）。

28. 发明申请

US20070263119A1 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：US20070263119A1
公开(公告)日：2007-11-15
申请号：US11434567
申请日：2006-05-15
申请人： Heung-Yeung Shum , Jian Sun , Sing Kang , Yin Li
发明人： Heung-Yeung Shum , Jian Sun , Sing Kang , Yin Li
IPC分类号： H04N5/222
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。

29. 发明申请

US20070247472A1 CAPTURING AND RENDERING GEOMETRIC DETAILS 有权
标题翻译：捕获和渲染几何细节
公开(公告)号：US20070247472A1
公开(公告)日：2007-10-25
申请号：US11277938
申请日：2006-03-29
申请人： Xin Tong , Yanyun Chen , Baining Guo , Heung-Yeung Shum , Jiaping Wang , John Snyder
发明人： Xin Tong , Yanyun Chen , Baining Guo , Heung-Yeung Shum , Jiaping Wang , John Snyder
IPC分类号： G09G5/00
CPC分类号： G01B11/24 , G01S17/89 , G06T15/04
摘要： A method and system for implementing capturing and rendering geometric details for mesostructure surfaces is described herein. A mesostructure distance function is defined as a function of a given reference point and a given viewing direction. A distance from a reference point to a mesostructure surface point along a viewing direction is measured using the mesostructure distance function. This distance is used to determine the visibility of mesostructure surface for rendering silhouettes. The lighting visibility of the mesostructure surface point may also be determined and used for determining whether the mesostructure surface point is in shadow. This determination may then be used for rendering shadow silhouettes.
摘要翻译：本文描述了一种用于实现用于介观结构表面的捕获和渲染几何细节的方法和系统。介观结构距离函数被定义为给定参考点和给定观察方向的函数。使用介观结构距离函数测量从参考点到观察方向的介观结构表面点的距离。该距离用于确定用于渲染轮廓的介观结构表面的可见性。也可以确定介观结构表面点的照明可见度，并用于确定介观结构表面点是否处于阴影。然后可以将该确定用于渲染阴影剪影。

30. 发明授权

US07286127B2 Large mesh deformation using the volumetric graph Laplacian 有权
标题翻译：使用体积图拉普拉斯算子的大网格变形
公开(公告)号：US07286127B2
公开(公告)日：2007-10-23
申请号：US11158428
申请日：2005-06-22
申请人： Kun Zhou , John Michael Snyder , Xinguo Liu , Baining Guo , Heung-Yeung Shum
发明人： Kun Zhou , John Michael Snyder , Xinguo Liu , Baining Guo , Heung-Yeung Shum
IPC分类号： G06T15/00
CPC分类号： G06T17/20 , G06T13/20
摘要： Large mesh deformation using the volumetric graph Laplacian is described. In one aspect, information is received from a user, wherein the information indicates how an original mesh is to be deformed. The original mesh is then deformed based on the information and application of a volumetric differential operator to a volumetric graph generated from the original mesh.
摘要翻译：描述了使用体积图拉普拉斯算子的大网格变形。在一个方面，从用户接收信息，其中信息指示原始网格如何变形。然后将原始网格基于体积差分算子的信息和应用变形为从原始网格生成的体积图。

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