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61. 发明授权

US08079079B2 Multimodal authentication 有权
标题翻译：多模式认证
公开(公告)号：US08079079B2
公开(公告)日：2011-12-13
申请号：US11171145
申请日：2005-06-29
申请人： Zhengyou Zhang , David W. Williams , Yuan Kong , Zicheng Liu , David Kurlander , Mike Sinclair
发明人： Zhengyou Zhang , David W. Williams , Yuan Kong , Zicheng Liu , David Kurlander , Mike Sinclair
IPC分类号： G06F7/04 , G06F12/00 , G06F12/14 , G06F13/00 , G06F17/30 , G11C7/00
CPC分类号： H04L63/08 , G06F21/32 , G06K9/00885 , G06K9/6293 , H04L63/0861
摘要： A multimodal system that employs a plurality of sensing modalities which can be processed concurrently to increase confidence in connection with authentication. The multimodal system and/or set of various devices can provide several points of information entry in connection with authentication. Authentication can be improved, for example, by combining face recognition, biometrics, speech recognition, handwriting recognition, gait recognition, retina scan, thumb/hand prints, or subsets thereof. Additionally, portable multimodal devices (e.g., a smartphone) can be used as credit cards, and authentication in connection with such use can mitigate unauthorized transactions.
摘要翻译：采用多个感测模式的多模式系统，可以同时处理以增加与认证相关联的置信度。多模式系统和/或各种设备的集合可以提供与认证相关联的多个信息点。可以通过组合人脸识别，生物识别，语音识别，手写识别，步态识别，视网膜扫描，拇指/手印或其子集来改进认证。此外，便携式多模式设备（例如，智能电话）可以用作信用卡，并且与此类使用相关的认证可以减轻未经授权的交易。

62. 发明授权

US08009880B2 Recovering parameters from a sub-optimal image 有权
标题翻译：从次优图像中恢复参数
公开(公告)号：US08009880B2
公开(公告)日：2011-08-30
申请号：US11747695
申请日：2007-05-11
申请人： Zhengyou Zhang , Zicheng Liu , Gang Hua , Yang Wang
发明人： Zhengyou Zhang , Zicheng Liu , Gang Hua , Yang Wang
IPC分类号： G06K9/00 , G06K9/56 , G09G5/00
CPC分类号： G06K9/00268 , G06K9/4661 , G06T7/11 , G06T2207/30201
摘要： A subregion-based image parameter recovery system and method for recovering image parameters from a single image containing a face taken under sub-optimal illumination conditions. The recovered image parameters (including albedo, illumination, and face geometry) can be used to generate face images under a new lighting environment. The method includes dividing the face in the image into numerous smaller regions, generating an albedo morphable model for each region, and using a Markov Random Fields (MRF)-based framework to model the spatial dependence between neighboring regions. Different types of regions are defined, including saturated, shadow, regular, and occluded regions. Each pixel in the image is classified and assigned to a region based on intensity, and then weighted based on its classification. The method decouples the texture from the geometry and illumination models, and then generates an objective function that is iteratively solved using an energy minimization technique to recover the image parameters.
摘要翻译：一种基于子区域的图像参数恢复系统和方法，用于从包含在次优照明条件下拍摄的面部的单个图像恢复图像参数。恢复的图像参数（包括反照率，照明和脸部几何）可用于在新的照明环境下生成脸部图像。该方法包括将图像中的脸部划分成许多较小的区域，为每个区域生成反照变形模型，并使用基于马尔可夫随机场（MRF）的框架来模拟相邻区域之间的空间依赖关系。定义不同类型的区域，包括饱和，阴影，常规和遮挡区域。将图像中的每个像素分类并分配给基于强度的区域，然后基于其分类进行加权。该方法将纹理与几何和照明模型分离，然后生成使用能量最小化技术迭代求解以恢复图像参数的目标函数。

63. 发明申请

US20110093820A1 GESTURE PERSONALIZATION AND PROFILE ROAMING 有权
标题翻译：个性化和轮廓漫画
公开(公告)号：US20110093820A1
公开(公告)日：2011-04-21
申请号：US12581443
申请日：2009-10-19
申请人： Zhengyou Zhang , Alex Aben-Athar Kipman , Kenneth Alan Lobb , Joseph Reginald Scott Molnar
发明人： Zhengyou Zhang , Alex Aben-Athar Kipman , Kenneth Alan Lobb , Joseph Reginald Scott Molnar
IPC分类号： G06F3/033 , G06F17/30
CPC分类号： G06F3/011 , A63F13/06 , A63F13/10 , A63F13/22 , A63F13/424 , A63F13/428 , A63F13/77 , A63F13/79 , A63F2300/1093 , A63F2300/552 , A63F2300/5546 , A63F2300/6045 , G06F3/017 , G06K9/00335
摘要： A gesture-based system may have default or pre-packaged gesture information, where a gesture is derived from a user's position or motion in a physical space. In other words, no controllers or devices are necessary. Depending on how a user uses his or her gesture to accomplish the task, the system may refine the properties and the gesture may become personalized. The personalized gesture information may be stored in a gesture profile and can be further updated with the latest data. The gesture-based system may use the gesture profile information for gesture recognition techniques. Further, the gesture profile may be roaming such that the gesture profile is available in a second location without requiring the system to relearn gestures that have already been personalized on behalf of the user.
摘要翻译：基于手势的系统可以具有默认或预先打包的手势信息，其中手势是从用户在物理空间中的位置或运动导出的。换句话说，不需要控制器或设备。取决于用户如何使用他或她的手势来完成任务，系统可以改进属性并且手势可以变得个性化。个性化手势信息可以存储在手势简档中，并且可以用最新数据进一步更新。基于手势的系统可以使用用于手势识别技术的姿势简档信息。此外，姿势简档可以漫游，使得手势配置文件在第二位置可用，而不需要系统重新学习已经代表用户个性化的手势。

64. 发明授权

US07930178B2 Speech modeling and enhancement based on magnitude-normalized spectra 有权
标题翻译：基于幅度归一化光谱的语音建模和增强
公开(公告)号：US07930178B2
公开(公告)日：2011-04-19
申请号：US11317269
申请日：2005-12-23
申请人： Zhengyou Zhang , Alejandro Acero , Amarnag Subramanya , Zicheng Liu
发明人： Zhengyou Zhang , Alejandro Acero , Amarnag Subramanya , Zicheng Liu
IPC分类号： G10L19/14 , G10L15/20 , G10L21/02
CPC分类号： G10L21/0208 , G10L15/20
摘要： A frame of a speech signal is converted into the spectral domain to identify a plurality of frequency components and an energy value for the frame is determined. The plurality of frequency components is divided by the energy value for the frame to form energy-normalized frequency components. A model is then constructed from the energy-normalized frequency components and can be used for speech recognition and speech enhancement.
摘要翻译：语音信号的帧被转换成频谱域以识别多个频率分量，并确定该帧的能量值。将多个频率分量除以帧的能量值以形成能量归一化频率分量。然后从能量归一化的频率分量构建模型，并可用于语音识别和语音增强。

65. 发明授权

US07924655B2 Energy-based sound source localization and gain normalization 有权
标题翻译：基于能量的声源定位和增益归一化
公开(公告)号：US07924655B2
公开(公告)日：2011-04-12
申请号：US11623643
申请日：2007-01-16
申请人： Zicheng Liu , Zhengyou Zhang , Li-wei He , Philip A. Chou , Minghua Chen
发明人： Zicheng Liu , Zhengyou Zhang , Li-wei He , Philip A. Chou , Minghua Chen
IPC分类号： H04R5/02
CPC分类号： G01S11/14 , G01S5/30 , H04M3/56 , H04N7/141 , H04N7/15 , H04R3/005 , H04R2420/07
摘要： An energy based technique to estimate the positions of people speaking from an ad hoc network of microphones. The present technique does not require accurate synchronization of the microphones. In addition, a technique to normalize the gains of the microphones based on people's speech is presented, which allows aggregation of various audio channels from the ad hoc microphone network into a single stream for audio conferencing. The technique is invariant of the speaker's volumes thus making the system easy to deploy in practice.
摘要翻译：一种基于能量的技术来估计从麦克风的自组织网络发言的人的位置。本技术不需要麦克风的准确同步。此外，提出了一种基于人们的语音来归一化麦克风的增益的技术，其允许将各种音频频道从专用麦克风网络聚合成用于音频会议的单个流。该技术是扬声器音量不变的，从而使得系统在实践中容易部署。

66. 发明申请

US20100318399A1 Adaptive Meeting Management 有权
标题翻译：自适应会议管理
公开(公告)号：US20100318399A1
公开(公告)日：2010-12-16
申请号：US12484949
申请日：2009-06-15
申请人： Jin Li , James E. Oker , Rajesh K. Hegde , Dinei Afonso Ferreira Florencio , Michel Pahud , Sharon K. Cunnington , Philip A. Chou , Zhengyou Zhang
发明人： Jin Li , James E. Oker , Rajesh K. Hegde , Dinei Afonso Ferreira Florencio , Michel Pahud , Sharon K. Cunnington , Philip A. Chou , Zhengyou Zhang
IPC分类号： G06Q10/00 , G06F3/01
CPC分类号： G06Q10/109 , G06Q10/1093
摘要： A template and/or knowledge associated with a synchronous meeting are obtained by a computing device. The computing device then adaptively manages the synchronous meeting based at least in part on the template and/or knowledge.
摘要翻译：通过计算设备获得与同步会议相关联的模板和/或知识。然后计算设备至少部分地基于模板和/或知识自适应地管理同步会议。

67. 发明授权

US07813923B2 Calibration based beamforming, non-linear adaptive filtering, and multi-sensor headset 有权
标题翻译：基于校准的波束成形，非线性自适应滤波和多传感器耳机
公开(公告)号：US07813923B2
公开(公告)日：2010-10-12
申请号：US11251164
申请日：2005-10-14
申请人： Alejandro Acero , Michael L. Seltzer , Zhengyou Zhang , Zicheng Liu
发明人： Alejandro Acero , Michael L. Seltzer , Zhengyou Zhang , Zicheng Liu
IPC分类号： G10L15/20 , G10L21/02 , H04R15/00
CPC分类号： G10L21/02 , G10L25/78 , G10L2021/02166
摘要： A first set of signals from an array of one or more microphones, and a second signal from a reference microphone are used to calibrate a set of filter parameters such that the filter parameters minimize a difference between the second signal and a beamformer output signal that is based on the first set of signals. Once calibrated, the filter parameters are used to form a beamformer output signal that is filtered using a non-linear adaptive filter that is adapted based on portions of a signal that do not contain speech, as determined by a speech detection sensor.
摘要翻译：使用来自一个或多个麦克风的阵列的第一组信号和来自参考麦克风的第二信号来校准一组滤波器参数，使得滤波器参数最小化第二信号与波束形成器输出信号之间的差异，基于第一组信号。一旦被校准，滤波器参数被用于形成使用非线性自适应滤波器进行滤波的波束形成器输出信号，所述非线性自适应滤波器基于由语音检测传感器确定的不包含语音的信号的部分而被适配。

68. 发明申请

US20100085416A1 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：US20100085416A1
公开(公告)日：2010-04-08
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
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。

69. 发明申请

US20090310802A1 VIRTUAL SOUND SOURCE POSITIONING 有权
标题翻译：虚拟声源定位
公开(公告)号：US20090310802A1
公开(公告)日：2009-12-17
申请号：US12140283
申请日：2008-06-17
申请人： Zhengyou Zhang , James D. Johnston
发明人： Zhengyou Zhang , James D. Johnston
IPC分类号： H04R5/02
CPC分类号： H04S7/302 , H04S2400/11
摘要： Systems and methods for determining a virtual sound source position by determining an output for loudspeakers by the position of the loudspeakers in relation to a listener. The output of respective loudspeakers is generated using aural cues to give the listener knowledge of the virtual position of the virtual sound source. Both a gain in intensity and a delay are simulated.
摘要翻译：用于通过扬声器相对于收听者的位置确定扬声器的输出来确定虚拟声源位置的系统和方法。使用听觉提示产生各个扬声器的输出，以使聆听者了解虚拟声源的虚拟位置。模拟强度和延迟的增益。

70. 发明授权

US07630571B2 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：US07630571B2
公开(公告)日：2009-12-08
申请号：US11227046
申请日：2005-09-15
申请人： Ross G. Cutler , Ya Chang , Zicheng Liu , Zhengyou Zhang
发明人： Ross G. Cutler , Ya Chang , Zicheng Liu , Zhengyou Zhang
IPC分类号： G06K9/40 , G06K9/48
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。

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