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    Data buddy
    21.
    发明授权
    Data buddy 有权
    资料好友

    公开(公告)号：US07460884B2

    公开(公告)日：2008-12-02

    申请号：US11170545

    申请日：2005-06-29

    申请人： Michael J. Sinclair ,  Yuan Kong ,  Zhengyou Zhang ,  Behrooz Chitsaz ,  David W. Williams ,  Silviu-Petru Cucerzan ,  Zicheng Liu

    发明人： Michael J. Sinclair ,  Yuan Kong ,  Zhengyou Zhang ,  Behrooz Chitsaz ,  David W. Williams ,  Silviu-Petru Cucerzan ,  Zicheng Liu

    IPC分类号： H04M1/00

    CPC分类号： H04W88/06 ,  H04M1/72572 ,  H04M2250/12 ,  H04M2250/58 ,  H04W8/245 ,  H04W92/02 ,  H04W92/10

    摘要： Multi-modal, multi-lingual devices can be employed to consolidate numerous items including, but not limited to, keys, remote controls, image capture devices, audio recorders, cellular telephone functionalities, location/direction detectors, health monitors, calendars, gaming devices, smart home inputs, pens, optical pointing devices or the like. For example, a corner of a cellular telephone can be used as an electronic pen. Moreover, the device can be used to snap multiple pictures stitching them together to create a panoramic image. A device can automate ignition of an automobile, initiate appliances, etc. based upon relative distance. The device can provide for near to eye capabilities for enhanced image viewing. Multiple cameras/sensors can be provided on a single device to provide for stereoscopic capabilities. The device can also provide assistance to blind, privacy, etc. by consolidating services.

    摘要翻译： 可以使用多模式，多语言设备来整合许多项目，包括但不限于键，遥控器，图像捕获设备，音频记录器，蜂窝电话功能，位置/方向检测器，健康监视器，日历，游戏设备 智能家庭输入，笔，光学指向装置等。 例如，蜂窝电话的角落可以用作电子笔。 此外，该设备可以用于将多个图片拼接在一起以创建全景图像。 设备可以基于相对距离自动点火汽车，起动电器等。 该设备可以提供近眼睛的功能，以增强图像观看效果。 可以在单个设备上提供多个摄像机/传感器以提供立体能力。 该设备还可以通过整合服务来提供盲人，隐私等方面的帮助。

    SYSTEM AND METHOD FOR HEAD SIZE EQUALIZATION IN 360 DEGREE PANORAMIC IMAGES
    22.
    发明申请
    SYSTEM AND METHOD FOR HEAD SIZE EQUALIZATION IN 360 DEGREE PANORAMIC IMAGES 有权
    用于360度全景图像中的大小均匀化的系统和方法

    公开(公告)号：US20070206878A1

    公开(公告)日：2007-09-06

    申请号：US11465703

    申请日：2006-08-18

    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

    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。

    System and method providing improved head motion estimations for animation
    25.
    发明授权
    System and method providing improved head motion estimations for animation 失效

    公开(公告)号：US07020305B2

    公开(公告)日：2006-03-28

    申请号：US09731481

    申请日：2000-12-06

    申请人： Zicheng Liu ,  Zhengyou Zhang

    发明人： Zicheng Liu ,  Zhengyou Zhang

    IPC分类号： G06K9/00

    CPC分类号： G06K9/00248 ,  G06T7/251 ,  G06T7/70 ,  G06T2207/10016 ,  G06T2207/30201

    摘要： The system provides improved procedures to estimate head motion between two images of a face. Locations of a number of distinct facial features are identified in two images. The identified locations can correspond to the eye comers, mouth corners and nose tip. The locations are converted into as a set of physical face parameters based on the symmetry of the identified distinct facial features. The set of physical parameters reduces the number of unknowns as compared to the number of equations used to determine the unknowns. An initial head motion estimate is determined by: (a) estimating each of the set of physical parameters, (b) estimating a first head pose transform corresponding to the first image, and (c) estimating a second head pose transform corresponding to the second image. The head motion estimate can be incorporated into a feature matching algorithm to refine the head motion estimation and the physical facial parameters. In one implementation, an inequality constraint is placed on a particular physical parameter—such as a nose tip, such that the parameter is constrained within a predetermined minimum and maximum value. The inequality constraint is converted to an equality constraint by using a penalty function. Then, the inequality constraint is used during the initial head motion estimation to add additional robustness to the motion estimation.

    System and method providing improved head motion estimations for animation
    27.
    发明申请
    System and method providing improved head motion estimations for animation 失效
    系统和方法为动画提供改进的头部运动估计

    公开(公告)号：US20050074145A1

    公开(公告)日：2005-04-07

    申请号：US11000603

    申请日：2004-12-01

    申请人： Zicheng Liu ,  Zhengyou Zhang

    发明人： Zicheng Liu ,  Zhengyou Zhang

    IPC分类号： G06T7/00 ,  G06T7/20 ,  G06T13/00 ,  G06T15/70 ,  G06K9/00

    CPC分类号： G06K9/00248 ,  G06T7/251 ,  G06T7/70 ,  G06T2207/10016 ,  G06T2207/30201

    摘要： Systems and methods to estimate head motion between two images of a face are described. In one aspect, locations of a plurality of distinct facial features in the two images are identified. The locations correspond to a number of unknowns that are determined upon estimation of head motion. The number of unknowns are determined by a number of equations. The identified locations are converted into a set of physical face parameters based on the symmetry of the distinct facial features. The set of physical face parameters reduce the number of unknowns as compared to the number of equations used to determine the unknowns. An inequality constraint is added to a particular face parameter of the physical face parameters, such that the particular face parameter is constrained within a predetermined minimum and maximum value. The inequality constraint is converted to an equality constraint using a penalty function. Head motion is estimated from identified points in the two images. The identified points are based on the set of physical face parameters.

    摘要翻译： 描述用于估计面部的两个图像之间的头部运动的系统和方法。 在一个方面，识别两个图像中的多个不同的面部特征的位置。 这些位置对应于在估计头部运动时确定的许多未知数。 未知数的数量由多个等式确定。 基于不同的面部特征的对称性，将识别的位置转换成一组物理面部参数。 与用于确定未知数的等式的数量相比，物理面参数的集合减少未知数的数量。 将不等式约束添加到物理面部参数的特定面部参数，使得特定面部参数被限制在预定的最小值和最大值内。 不等式约束使用惩罚函数转换为等式约束。 从两个图像中的识别点估计头部运动。 识别的点是基于物理面参数的集合。

    Immersive remote conferencing
    28.
    发明授权
    Immersive remote conferencing 有权
    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。

    Multi-device capture and spatial browsing of conferences
    29.
    发明授权
    Multi-device capture and spatial browsing of conferences 有权
    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。

    HEAD POSE TRACKING USING A DEPTH CAMERA
    30.
    发明申请
    HEAD POSE TRACKING USING A DEPTH CAMERA 有权
    使用深度摄像机的头部跟踪

    公开(公告)号：US20130201291A1

    公开(公告)日：2013-08-08

    申请号：US13369168

    申请日：2012-02-08

    申请人： Zicheng Liu ,  Zhengyou Zhang ,  Zhenning Li

    发明人： Zicheng Liu ,  Zhengyou Zhang ,  Zhenning Li

    IPC分类号： H04N13/02

    CPC分类号： G06F3/012 ,  G06T7/74 ,  G06T2207/10028 ,  G06T2207/30244

    摘要： Head pose tracking technique embodiments are presented that use a group of sensors configured so as to be disposed on a user's head. This group of sensors includes a depth sensor apparatus used to identify the three dimensional locations of features within a scene, and at least one other type of sensor. Data output by each sensor in the group of sensors is periodically input, and each time the data is input it is used to compute a transformation matrix that when applied to a previously determined head pose location and orientation established when the first sensor data was input identifies a current head pose location and orientation. This transformation matrix is then applied to the previously determined head pose location and orientation to identify a current head pose location and orientation.

    摘要翻译： 提出了头部姿势跟踪技术实施例，其使用被配置为设置在用户头部上的一组传感器。 该组传感器包括用于识别场景内的特征的三维位置的深度传感器装置和至少一种其它类型的传感器。 周期性地输入传感器组中的每个传感器的数据输出，并且每次输入数据时，它用于计算当应用于当输入第一传感器数据时确定的先前确定的头姿势位置和方向的变换矩阵 当前的头部姿势位置和方位。 然后将该变换矩阵应用于先前确定的头部姿势位置和方向以识别当前头部姿势位置和姿态。