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1. 发明授权

US07840638B2 Participant positioning in multimedia conferencing 有权
标题翻译：参与者在多媒体会议中的定位
公开(公告)号：US07840638B2
公开(公告)日：2010-11-23
申请号：US12147603
申请日：2008-06-27
申请人： Zhengyou Zhang , Xuedong David Huang , Zicheng Liu , Cha Zhang , Philip A. Chou , Christian Huitema
发明人： Zhengyou Zhang , Xuedong David Huang , Zicheng Liu , Cha Zhang , Philip A. Chou , Christian Huitema
IPC分类号： G06F15/16 , G06F12/00
CPC分类号： H04N7/142 , H04M3/567 , H04N7/147 , H04N7/15
摘要： A multimedia conference technique is disclosed that allows physically remote users to participate in an immersive telecollaborative environment by synchronizing multiple data, images and sounds. The multimedia conference implementation provides users with the perception of being in the same room visually as well as acoustically according to an orientation plan which reflects each remote user's position within the multimedia conference environment.
摘要翻译：公开了一种多媒体会议技术，其允许物理上的远程用户通过同步多个数据，图像和声音来参与沉浸式的电视解码环境。多媒体会议实现为用户提供了根据反映每个远程用户在多媒体会议环境中的位置的方向计划在视觉上和声学上在同一房间中的感觉。

2. 发明申请

US20090327418A1 PARTICIPANT POSITIONING IN MULTIMEDIA CONFERENCING 有权
标题翻译：参与者在多媒体会议中的定位
公开(公告)号：US20090327418A1
公开(公告)日：2009-12-31
申请号：US12147603
申请日：2008-06-27
申请人： Zhengyou Zhang , Xuedong David Huang , Zicheng Liu , Cha Zhang , Philip A. Chou , Christian Huitema
发明人： Zhengyou Zhang , Xuedong David Huang , Zicheng Liu , Cha Zhang , Philip A. Chou , Christian Huitema
IPC分类号： G06F15/16
CPC分类号： H04N7/142 , H04M3/567 , H04N7/147 , H04N7/15
摘要： A multimedia conference technique is disclosed that allows physically remote users to participate in an immersive telecollaborative environment by synchronizing multiple data, images and sounds. The multimedia conference implementation provides users with the perception of being in the same room visually as well as acoustically according to an orientation plan which reflects each remote user's position within the multimedia conference environment.
摘要翻译：公开了一种多媒体会议技术，其允许物理上的远程用户通过同步多个数据，图像和声音来参与沉浸式的电视解码环境。多媒体会议实现为用户提供了根据反映每个远程用户在多媒体会议环境中的位置的方向计划在视觉上和声学上在同一房间中的感觉。

3. 发明申请

US20100289904A1 VIDEO CAPTURE DEVICE PROVIDING MULTIPLE RESOLUTION VIDEO FEEDS 审中-公开
标题翻译：提供多种分辨率视频馈送的视频捕获设备
公开(公告)号：US20100289904A1
公开(公告)日：2010-11-18
申请号：US12466494
申请日：2009-05-15
申请人： Cha Zhang , Zhengyou Zhang , Zicheng Liu , Wanghong Yuan , Christian Huitema
发明人： Cha Zhang , Zhengyou Zhang , Zicheng Liu , Wanghong Yuan , Christian Huitema
IPC分类号： H04N7/08 , H04N7/24 , H04N5/225
CPC分类号： H04N7/147 , H04N7/148
摘要： Systems are disclosed that provide improved transfer speed of video data from a video capture device to a computing device using multiple video feeds respectively comprising different resolutions. A high-resolution image sensor is used to convert light images into a high-resolution video data stream. A down sampler converts the high-resolution video data stream to a low-resolution video data stream, so that both a low-resolution data stream and a high-resolution data stream are available. While the low resolution-data stream can be sent to the computing device, a digital signal processor (DSP) processes the high-resolution video data stream in accordance with an input control signal that is comprised of desired high-resolution video stream parameters derived from the low-resolution video data stream.
摘要翻译：公开了使用分别包括不同分辨率的多个视频进给提供视频数据从视频采集设备到计算设备的改进传送速度的系统。高分辨率图像传感器用于将光图像转换成高分辨率视频数据流。下采样器将高分辨率视频数据流转换为低分辨率视频数据流，使得低分辨率数据流和高分辨率数据流都可用。尽管低分辨率数据流可被发送到计算设备，但数字信号处理器（DSP）根据输入控制信号处理高分辨率视频数据流，该输入控制信号包括从低分辨率视频数据流。

4. 发明申请

US20120281059A1 Immersive Remote Conferencing 有权
标题翻译：沉浸式远程会议
公开(公告)号：US20120281059A1
公开(公告)日：2012-11-08
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： H04N7/15
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。

5. 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。

6. 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。

7. 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。

8. 发明申请

US20090251594A1 VIDEO RETARGETING 有权
标题翻译：视频返回
公开(公告)号：US20090251594A1
公开(公告)日：2009-10-08
申请号：US12060890
申请日：2008-04-02
申请人： Gang Hua , Cha Zhang , Zhengyou Zhang , Zicheng Liu , Ying Shan
发明人： Gang Hua , Cha Zhang , Zhengyou Zhang , Zicheng Liu , Ying Shan
IPC分类号： H04N7/01
CPC分类号： G06T11/00 , H04N1/3875 , H04N7/0122 , H04N21/2662
摘要： Videos are retargeted to a target display for viewing with little to no geometric distortion or video information loss. Salient regions of video frames may be determined using scale-space spatiotemporal information. Video information loss may be a result of spatial loss, due to cropping, and resolution loss, due to resizing. A desired cropping window may be determined using a coarse-to-fine searching strategy. Video frames may be cropped with a window that matches an aspect ratio of the target display, and resized isotropically to match a size of the target display.
摘要翻译：视频被重定向到目标显示器，用于观看几乎没有几何失真或视频信息丢失。可以使用尺度空间时空信息来确定视频帧的显着区域。视频信息丢失可能是由于调整大小而导致的空间损失，由于裁剪和分辨率损失造成的。可以使用粗略到精细的搜索策略来确定期望的裁剪窗口。可以用与目标显示器的纵横比匹配的窗口裁剪视频帧，并且各向同性地调整大小以匹配目标显示器的大小。

9. 发明授权

US09240056B2 Video retargeting 有权
标题翻译：视频重新定位
公开(公告)号：US09240056B2
公开(公告)日：2016-01-19
申请号：US12060890
申请日：2008-04-02
申请人： Gang Hua , Cha Zhang , Zhengyou Zhang , Zicheng Liu , Ying Shan
发明人： Gang Hua , Cha Zhang , Zhengyou Zhang , Zicheng Liu , Ying Shan
IPC分类号： H04N7/01 , H04N11/20 , G06K9/20 , G06T11/00 , H04N1/387 , H04N21/2662
CPC分类号： G06T11/00 , H04N1/3875 , H04N7/0122 , H04N21/2662
摘要： Videos are retargeted to a target display for viewing with little to no geometric distortion or video information loss. Salient regions of video frames may be determined using scale-space spatiotemporal information. Video information loss may be a result of spatial loss, due to cropping, and resolution loss, due to resizing. A desired cropping window may be determined using a coarse-to-fine searching strategy. Video frames may be cropped with a window that matches an aspect ratio of the target display, and resized isotropically to match a size of the target display.
摘要翻译：视频被重定向到目标显示器，用于观看几乎没有几何失真或视频信息丢失。可以使用尺度空间时空信息来确定视频帧的显着区域。视频信息丢失可能是由于调整大小而导致的空间损失，由于裁剪和分辨率损失造成的。可以使用粗略到精细的搜索策略来确定期望的裁剪窗口。可以用与目标显示器的纵横比匹配的窗口裁剪视频帧，并且各向同性地调整大小以匹配目标显示器的大小。

10. 发明授权

US08175382B2 Learning image enhancement 有权
标题翻译：学习图像增强
公开(公告)号：US08175382B2
公开(公告)日：2012-05-08
申请号：US11801620
申请日：2007-05-10
申请人： Zicheng Liu , Cha Zhang , Zhengyou Zhang
发明人： Zicheng Liu , Cha Zhang , Zhengyou Zhang
IPC分类号： G06K9/00
CPC分类号： G06K9/00234 , H04N1/62 , H04N1/628
摘要： Image enhancement techniques are described to enhance an image in accordance with a set of training images. In an implementation, an image color tone map is generated for a facial region included in an image. The image color tone map may be normalized to a color tone map for a set of training images so that the image color tone map matches the map for the training images. The normalized color tone map may be applied to the image to enhance the in-question image. In further implementations, the procedure may be updated when the average color intensity in non-facial regions differs from an accumulated mean by a threshold amount.
摘要翻译：描述图像增强技术以根据一组训练图像来增强图像。在实现中，为包括在图像中的面部区域生成图像色调映射。图像色调图可以被归一化为用于一组训练图像的色调图，使得图像色调图匹配训练图像的图。归一化色调图可以应用于图像以增强问题图像。在进一步的实施中，当非面部区域中的平均颜色强度与积累的平均值不同阈值量时，可以更新该过程。

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