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41. 发明授权

US07319908B2 Multi-modal device power/mode management 有权
标题翻译：多模式设备电源/模式管理
公开(公告)号：US07319908B2
公开(公告)日：2008-01-15
申请号：US11261108
申请日：2005-10-28
申请人： Michael J. Sinclair , David W. Williams , Zhengyou Zhang , Zicheng Liu
发明人： Michael J. Sinclair , David W. Williams , Zhengyou Zhang , Zicheng Liu
IPC分类号： G05B11/01 , G05D3/12
CPC分类号： G06F1/3203 , G06F1/263 , G06F1/3231 , Y02D10/173
摘要： A system that facilitates managing resources (e.g., functionality, services) based at least in part upon an established context. More particularly, a context determination component can be employed to establish a context by processing sensor inputs or learning/inferring a user action/preference. Once the context is established via context determination component, a power/mode management component can be employed to activate and/or mask resources in accordance with the established context. The power and mode management of the device can extend life of a power source (e.g., battery) and mask functionality in accordance with a user and/or device state.
摘要翻译：一种有助于至少部分地基于建立的上下文来管理资源（例如，功能，服务）的系统。更具体地，可以采用上下文确定组件来通过处理传感器输入或学习/推断用户动作/偏好来建立上下文。一旦通过上下文确定组件建立了上下文，则可以使用功率/模式管理组件来根据建立的上下文激活和/或掩蔽资源。设备的功率和模式管理可以根据用户和/或设备状态延长电源（例如电池）的寿命和屏蔽功能。

42. 发明授权

US07260257B2 System and method for whiteboard and audio capture 有权
标题翻译：用于白板和音频捕获的系统和方法
公开(公告)号：US07260257B2
公开(公告)日：2007-08-21
申请号：US10178443
申请日：2002-06-19
申请人： Zhengyou Zhang , Ross Cutler , Zicheng Liu , Anoop Gupta , Li-wei He
发明人： Zhengyou Zhang , Ross Cutler , Zicheng Liu , Anoop Gupta , Li-wei He
IPC分类号： C06K9/00
CPC分类号： G06F17/30843 , G06Q10/1095 , G11B27/105 , G11B27/28 , G11B27/34 , H04N5/77 , H04N9/806
摘要： A system that captures both whiteboard content and audio signals of a meeting using a digital camera and a microphone. The system can be retrofit to any existing whiteboard. It computes the time stamps of pen strokes on the whiteboard by analyzing the sequence of captured snapshots. It also automatically produces a set of key frames representing all the written content on the whiteboard before each erasure. The whiteboard content serves as a visual index to efficiently browse the audio meeting. The system not only captures the whiteboard content, but also helps the users to view and manage the captured meeting content efficiently and securely.
摘要翻译：使用数码相机和麦克风捕获会议的白板内容和音频信号的系统。该系统可以改装任何现有的白板。它通过分析捕获的快照的顺序来计算白板上笔划的时间戳。它也会在每次擦除之前自动产生代表白板上所有写入内容的一组关键帧。白板内容作为视觉索引，有效地浏览音频会议。该系统不仅可以捕获白板内容，还可以帮助用户有效，安全地查看和管理所捕获的会议内容。

43. 发明授权

US07200281B2 System and method for image-based surface detail transfer 有权
标题翻译：基于图像的表面细节传输的系统和方法
公开(公告)号：US07200281B2
公开(公告)日：2007-04-03
申请号：US11108545
申请日：2005-04-18
申请人： Zhengyou Zhang , Zicheng Liu , Ying Shan
发明人： Zhengyou Zhang , Zicheng Liu , Ying Shan
IPC分类号： G06K9/36 , G09G5/00
CPC分类号： G06T15/04 , G06T11/001
摘要： A system and method, called Image-Based Surface Detail Transfer, to transfer geometric details from one surface of an object in an image to another with simple 2D image operations. The basic observation is that, without knowing its 3D geometry, geometric details (local deformations) can be extracted from a single image of an object in a way independent of its surface reflectance, and furthermore, these geometric details can be transferred to modify the appearance of other objects directly in images. Examples are shown including surface detail transfer between real objects, as well as between real and synthesized objects.
摘要翻译：一种称为基于图像的表面细节传输的系统和方法，通过简单的2D图像操作将图像中的对象的一个表面的几何细节传输到另一个。基本的观察是，在不知道其3D几何形状的情况下，可以以独立于其表面反射率的方式从对象的单个图像中提取几何细节（局部变形），此外，这些几何细节可以被转移以修改外观的其他对象直接在图像。示例的实例包括真实对象之间的表面细节传递，以及真实对象和合成对象之间的表面细节传递。

44. 发明申请

US20070058879A1 Automatic detection of panoramic camera position and orientation table parameters 有权
标题翻译：自动检测全景相机的位置和方位表参数
公开(公告)号：US20070058879A1
公开(公告)日：2007-03-15
申请号：US11227046
申请日：2005-09-15
申请人： Ross Cutler , Ya Chang , Zicheng Liu , Zhengyou Zhang
发明人： Ross Cutler , Ya Chang , Zicheng Liu , Zhengyou Zhang
IPC分类号： G06K9/40 , G06K9/36
CPC分类号： G06T5/006 , G06T7/68 , G06T7/80 , G06T2200/32
摘要： A panoramic camera is configured to automatically determine parameters of a table upon which the camera is situated as well as positional information of the camera relative to the table. In an initialization stage, table edges are detected to create an edge map. A Hough transformation-like symmetry voting operation is performed to clean up the edge map and to determine camera offset, camera orientation and camera tilt. The table is then fit to a table model to determine table parameters. In an operational stage, table edges are detected to create an edge map and the table model is fit to the edge map. The output can then be used for further panoramic image processing such as head size normalization, zooming, compensation for camera movement, etc.
摘要翻译：全景相机被配置为自动确定相机所在的表的参数以及相机相对于表的位置信息。在初始化阶段，检测表边缘以创建边缘图。执行霍夫变换对称投票操作来清理边缘图并确定相机偏移，相机方向和相机倾斜度。然后将表适合于表模型以确定表参数。在操作阶段，检测表边缘以创建边缘图，并且表模型适合边缘图。然后可以将输出用于进一步的全景图像处理，例如头部尺寸归一化，变焦，相机移动补偿等。

45. 发明授权

US07184609B2 System and method for head size equalization in 360 degree panoramic images 有权
标题翻译：用于360度全景图像的头部尺寸均衡的系统和方法
公开(公告)号：US07184609B2
公开(公告)日：2007-02-27
申请号：US11106311
申请日：2005-04-14
申请人： Zicheng Liu , Ross Cutler , Michael Cohen , Zhengyou Zhang
发明人： Zicheng Liu , Ross Cutler , Michael Cohen , Zhengyou Zhang
IPC分类号： G06K9/36 , G09G5/00 , H04N7/00
CPC分类号： G06T3/0062 , G06K9/00228 , G06T3/4038 , G06T5/006 , G06T7/30
摘要： A real-time approximately 360 degree image correction system and a method for alleviating distortion and perception problems in images captured by omni-directional cameras. In general, the real-time panoramic image correction method generates a warp table from pixel coordinates of a panoramic image and applies the warp table to the panoramic image to create a corrected panoramic image. The corrections are performed using a parametric class of warping functions that include Spatially Varying Uniform (SVU) scaling functions. The SVU scaling functions and scaling factors are used to perform vertical scaling and horizontal scaling on the panoramic image pixel coordinates. A horizontal distortion correction is performed using the SVU scaling functions at at least two different scaling factors. This processing generates a warp table that can be applied to the panoramic image to yield the corrected panoramic image. In one embodiment the warp table is concatenated with a stitching table used to create the panoramic image.
摘要翻译：一种实时大约360度的图像校正系统和一种减轻全方位摄像机拍摄图像失真和感知问题的方法。通常，实时全景图像校正方法从全景图像的像素坐标生成扭曲表，并将经线表应用于全景图像，以创建校正的全景图像。校正使用包括空间变化均匀（SVU）缩放函数的参数化的翘曲函数类来执行。 SVU缩放函数和缩放因子用于对全景图像像素坐标执行垂直缩放和水平缩放。使用SVU缩放函数以至少两个不同的缩放因子执行水平失真校正。该处理产生可应用于全景图像以产生经校正的全景图像的经向表。在一个实施例中，经线台与用于创建全景图像的缝合台连接。

46. 发明申请

US20060104491A1 Rapid Computer Modeling of Faces for Animation 有权
标题翻译：动画面快速计算机建模
公开(公告)号：US20060104491A1
公开(公告)日：2006-05-18
申请号：US11275755
申请日：2006-01-26
申请人： Zicheng Liu , Zhengyou Zhang , Michael Cohen , Charles Jacobs
发明人： Zicheng Liu , Zhengyou Zhang , Michael Cohen , Charles Jacobs
IPC分类号： G06K9/00
CPC分类号： G06T13/40 , G06K9/00201 , G06K9/00248 , G06K9/00268 , G06K9/00281 , G06T7/251 , G06T7/55 , G06T7/579 , G06T7/74 , G06T9/001 , G06T15/205 , G06T17/00 , G06T17/10 , G06T17/20 , G06T2200/08 , G06T2207/10012 , G06T2207/10016 , G06T2207/10021 , G06T2207/30201 , H04N19/162 , H04N19/503
摘要： Described herein is a technique for creating a 3D face model using images obtained from an inexpensive camera associated with a general-purpose computer. Two still images of the user are captured, and two video sequences. The user is asked to identify five facial features, which are used to calculate a mask and to perform fitting operations. Based on a comparison of the still images, deformation vectors are applied to a neutral face model to create the 3D model. The video sequences are used to create a texture map. The process of creating the texture map references the previously obtained 3D model to determine poses of the sequential video images.
摘要翻译：这里描述了使用从与通用计算机相关联的廉价摄像机获得的图像来创建3D人脸模型的技术。捕获用户的两个静止图像，以及两个视频序列。要求用户识别五个面部特征，用于计算面罩并执行装配操作。基于静止图像的比较，将变形向量应用于中性面部模型以创建3D模型。视频序列用于创建纹理贴图。创建纹理图的过程参考先前获得的3D模型以确定顺序视频图像的姿态。

47. 发明申请

US20050180657A1 System and method for image-based surface detail transfer 有权
标题翻译：基于图像的表面细节传输的系统和方法
公开(公告)号：US20050180657A1
公开(公告)日：2005-08-18
申请号：US11108545
申请日：2005-04-18
申请人： Zhengyou Zhang , Zicheng Liu , Ying Shan
发明人： Zhengyou Zhang , Zicheng Liu , Ying Shan
IPC分类号： G06T11/00 , G06T15/20 , G06K9/00
CPC分类号： G06T15/04 , G06T11/001
摘要： A system and method, called Image-Based Surface Detail Transfer, to transfer geometric details from one surface of an object in an image to another with simple 2D image operations. The basic observation is that, without knowing its 3D geometry, geometric details (local deformations) can be extracted from a single image of an object in a way independent of its surface reflectance, and furthermore, these geometric details can be transferred to modify the appearance of other objects directly in images. Examples are shown including surface detail transfer between real objects, as well as between real and synthesized objects.
摘要翻译：一种称为基于图像的表面细节传输的系统和方法，通过简单的2D图像操作将图像中的对象的一个表面的几何细节传输到另一个。基本的观察是，在不知道其3D几何形状的情况下，可以以独立于其表面反射率的方式从对象的单个图像中提取几何细节（局部变形），此外，这些几何细节可以被转移以修改外观的其他对象直接在图像。示例的实例包括真实对象之间的表面细节传递，以及真实对象和合成对象之间的表面细节传递。

48. 发明申请

US20050129315A1 Rapid computer modeling of faces for animation 有权
公开(公告)号：US20050129315A1
公开(公告)日：2005-06-16
申请号：US11048169
申请日：2005-02-01
申请人： Zicheng Liu , Zhengyou Zhang , Michael Cohen , Charles Jacobs
发明人： Zicheng Liu , Zhengyou Zhang , Michael Cohen , Charles Jacobs
IPC分类号： G06K9/00 , G06T13/40 , G06T15/20 , G06T17/00 , G06T17/10 , H04N7/26 , H04N7/36
CPC分类号： G06T13/40 , G06K9/00201 , G06K9/00248 , G06K9/00268 , G06K9/00281 , G06T7/251 , G06T7/55 , G06T7/579 , G06T7/74 , G06T9/001 , G06T15/205 , G06T17/00 , G06T17/10 , G06T17/20 , G06T2200/08 , G06T2207/10012 , G06T2207/10016 , G06T2207/10021 , G06T2207/30201 , H04N19/162 , H04N19/503
摘要： Described herein is a technique for creating a 3D face model using images obtained from an inexpensive camera associated with a general-purpose computer. Two still images of the user are captured, and two video sequences. The user is asked to identify five facial features, which are used to calculate a mask and to perform fitting operations. Based on a comparison of the still images, deformation vectors are applied to a neutral face model to create the 3D model. The video sequences are used to create a texture map. The process of creating the texture map references the previously obtained 3D model to determine poses of the sequential video images.

49. 发明授权

US08675067B2 Immersive remote conferencing 有权
标题翻译：沉浸式远程会议
公开(公告)号：US08675067B2
公开(公告)日：2014-03-18
申请号：US13100504
申请日：2011-05-04
申请人： Philip A. Chou , Zhengyou Zhang , Cha Zhang , Dinei A. Florencio , Zicheng Liu , Rajesh K. Hegde , Nirupama Chandrasekaran
发明人： Philip A. Chou , Zhengyou Zhang , Cha Zhang , Dinei A. Florencio , Zicheng Liu , Rajesh K. Hegde , Nirupama Chandrasekaran
IPC分类号： H04N7/18
CPC分类号： H04L12/1827 , H04N7/147 , H04N7/157
摘要： The subject disclosure is directed towards an immersive conference, in which participants in separate locations are brought together into a common virtual environment (scene), such that they appear to each other to be in a common space, with geometry, appearance, and real-time natural interaction (e.g., gestures) preserved. In one aspect, depth data and video data are processed to place remote participants in the common scene from the first person point of view of a local participant. Sound data may be spatially controlled, and parallax computed to provide a realistic experience. The scene may be augmented with various data, videos and other effects/animations.
摘要翻译：本发明涉及一种身临其境的会议，其中分开的位置的参与者被聚集到一个共同的虚拟环境（场景）中，使得它们彼此看起来处于共同的空间中，具有几何，外观和实时性，保留时间自然的相互作用（如手势）。在一个方面，深度数据和视频数据被处理以将远程参与者从本地参与者的第一人的角度放置在公共场景中。声音数据可以是空间控制的，并且计算视差以提供真实的体验。场景可能会增加各种数据，视频和其他效果/动画。

50. 发明授权

US08537196B2 Multi-device capture and spatial browsing of conferences 有权
标题翻译：会议的多设备捕获和空间浏览
公开(公告)号：US08537196B2
公开(公告)日：2013-09-17
申请号：US12245774
申请日：2008-10-06
申请人： Rajesh K. Hegde , Zhengyou Zhang , Philip A. Chou , Cha Zhang , Zicheng Liu , Sasa Junuzovic
发明人： Rajesh K. Hegde , Zhengyou Zhang , Philip A. Chou , Cha Zhang , Zicheng Liu , Sasa Junuzovic
IPC分类号： H04N7/14 , G06F15/16 , G06F3/48
CPC分类号： H04N7/157 , H04N7/147
摘要： Multi-device capture and spatial browsing of conferences is described. In one implementation, a system detects cameras and microphones, such as the webcams on participants' notebook computers, in a conference room, group meeting, or table game, and enlists an ad-hoc array of available devices to capture each participant and the spatial relationships between participants. A video stream composited from the array is browsable by a user to navigate a 3-dimensional representation of the meeting. Each participant may be represented by a video pane, a foreground object, or a 3-D geometric model of the participant's face or body displayed in spatial relation to the other participants in a 3-dimensional arrangement analogous to the spatial arrangement of the meeting. The system may automatically re-orient the 3-dimensional representation as needed to best show the currently interesting event such as current speaker or may extend navigation controls to a user for manually viewing selected participants or nuanced interactions between participants.
摘要翻译：描述会议的多设备捕获和空间浏览。在一个实现中，系统检测相机和麦克风，例如参与者的笔记本计算机上的网络摄像机，会议室，组会议或桌面游戏，并且招募可用设备的特设阵列以捕获每个参与者和空间参与者之间的关系。从阵列合成的视频流可由用户浏览以浏览会议的三维表示。每个参与者可以以类似于会议的空间安排的三维布置的视频窗格，前景对象或与其他参与者以空间关系显示的三维几何模型来表示。该系统可以根据需要自动重新定向三维表示，以最佳地显示当前有趣的事件，例如当前的扬声器，或者可以将导航控件扩展到用户，以便手动地观看选定的参与者或参与者之间微妙的交互。

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