公开(公告)号：US20100080469A1

公开(公告)日：2010-04-01

申请号：US12566580

申请日：2009-09-24

申请人： Qiong Liu ,  Hironori Yano

发明人： Qiong Liu ,  Hironori Yano

IPC分类号： G06K9/46

CPC分类号： G06K9/4671

摘要： System and method of generating feature descriptors for image identification. Input image is Gaussian-blurred at different scales. A difference of Gaussian space is obtained from differences of adjacent Gaussian-blurred images. Key points are identified in the difference-of-Gaussian space. For each key point, primary sampling points are defined with three dimensional relative positions from key point and reaching into planes of different scales. Secondary sampling points are identified for each primary sampling point. Secondary image gradients are obtained between an image at a primary sampling point and images at secondary sampling points corresponding to this primary sampling point. Secondary image gradients form components of primary image gradients at primary sampling points. Primary image gradients are concatenated to obtain a descriptor vector for input image. Descriptor vector thus obtained is scale invariant and requires a number of additions equal to number of primary sampling points multiplied by a number of secondary sampling points.

摘要翻译： 生成图像识别特征描述符的系统和方法。 输入图像是不同尺度的高斯模糊。 从相邻高斯模糊图像的差异获得高斯空间的差异。 关键点在高斯差异空间中被识别。 对于每个关键点，主要采样点被定义为从关键点到达不同尺度平面的三维相对位置。 为每个主要采样点识别二次采样点。 在主要采样点的图像与对应于该主要采样点的二次采样点的图像之间获得二次图像梯度。 次要图像梯度在主要采样点形成原始图像梯度的分量。 连接主图像梯度以获得输入图像的描述符向量。 如此获得的描述符向量是不变尺度，并且需要等于一次采样点的数量乘以二次采样点数的多个加法。

公开(公告)号：US07639839B2

公开(公告)日：2009-12-29

申请号：US10815389

申请日：2004-03-31

申请人： Patrick Chiu ,  Andreas Girgensohn ,  Qiong Liu

发明人： Patrick Chiu ,  Andreas Girgensohn ,  Qiong Liu

IPC分类号： G06K9/00 ,  G06K9/62 ,  G06K9/36

CPC分类号： G06F17/30793 ,  G06F17/30802 ,  G06F17/30811 ,  G06F17/30843 ,  G06T7/215

摘要： In one embodiment, the present invention extracts video regions of interest from one or more videos and generates a highly condensed visual summary of the videos. The video regions of interest are extracted based on to energy, movement, face or other object detection methods, associated data or external input, or some other feature of the video. In another embodiment, the present invention extracts regions of interest from images and generates highly condensed visual summaries of the images. The highly condensed visual summary is generated by laying out germs on a canvas and then filling the spaces between the germs. The result is a visual summary that resembles a stained glass window having cells of varying shape. The germs may be laid out by temporal order, color histogram, similarity, according to a desired pattern, size, or some other manner. The people, objects and other visual content in the germs appear larger and become easier to see. The visual summary of the present invention utilizes important regions within the key frames, leading to more condensed summaries that are well suitable for small screens.

摘要翻译： 在一个实施例中，本发明从一个或多个视频中提取感兴趣的视频区域，并且生成高分辨率的视频概要。 基于能量，移动，面部或其他物体检测方法，相关联的数据或外部输入或视频的某些其他特征来提取感兴趣的视频区域。 在另一个实施例中，本发明从图像中提取感兴趣的区域并且产生图像的高度浓缩的视觉摘要。 高度浓缩的视觉总结是通过在画布上布置细菌，然后填充细菌之间的空间来产生的。 结果是类似于具有不同形状的细胞的彩色玻璃窗的视觉总结。 根据期望的图案，大小或某种其他方式，细菌可以通过时间顺序，颜色直方图，相似性布置。 细菌中的人，物和其他视觉内容看起来更大，变得更容易看到。 本发明的视觉总结利用关键帧内的重要区域，导致更加精简的摘要，其非常适合于小屏幕。

公开(公告)号：US07624166B2

公开(公告)日：2009-11-24

申请号：US10727310

申请日：2003-12-02

申请人： Jonathan T. Foote ,  Qiong Liu ,  Matthew Cooper ,  John Boreczky

发明人： Jonathan T. Foote ,  Qiong Liu ,  Matthew Cooper ,  John Boreczky

IPC分类号： G06F15/16

CPC分类号： H04B10/1143 ,  H04B10/116

摘要： Methods and systems for transferring media between media source devices and media sink devices are disclosed. Remote control units are used to indicate the media sink and media source devices for transferring media data between these elements.

摘要翻译： 公开了在介质源设备和介质宿设备之间传送介质的方法和系统。 远程控制单元用于指示用于在这些元素之间传送媒体数据的媒体接收器和媒体源设备。

公开(公告)号：US07154526B2

公开(公告)日：2006-12-26

申请号：US10617549

申请日：2003-07-11

申请人： Jonathan T. Foote ,  John Adcock ,  Qiong Liu ,  Timothy E. Black

发明人： Jonathan T. Foote ,  John Adcock ,  Qiong Liu ,  Timothy E. Black

IPC分类号： H04N7/14

CPC分类号： H04N7/142

摘要： A system in accordance with one embodiment of the present invention comprises a device for facilitating video communication between a remote participant and another location. The device can comprise a screen adapted to display the remote participant, the screen having a posture adapted to be controlled by the remote participant. A camera can be mounted adjacent to the screen, and can allow the subject to view a selected conference participant or a desired location such that when the camera is trained on the selected participant or desired location a gaze of the remote participant displayed by the screen appears substantially directed at the selected participant or desired location.

摘要翻译： 根据本发明的一个实施例的系统包括用于促进远程参与者和另一位置之间的视频通信的装置。 设备可以包括适于显示远程参与者的屏幕，屏幕具有适于由远程参与者控制的姿势。 摄像机可以安装在屏幕附近，并且可以允许被摄体观看所选择的会议参与者或期望的位置，使得当在所选择的参与者或期望位置上训练相机时，屏幕显示的远程参与者的凝视出现 基本上指向所选择的参与者或期望位置。

公开(公告)号：US20050117910A1

公开(公告)日：2005-06-02

申请号：US10727310

申请日：2003-12-02

申请人： Jonathan Foote ,  Qiong Liu ,  Matthew Cooper ,  John Boreczky

发明人： Jonathan Foote ,  Qiong Liu ,  Matthew Cooper ,  John Boreczky

IPC分类号： H04Q9/00 ,  H04B10/00 ,  H04B10/10

CPC分类号： H04B10/1143 ,  H04B10/116

摘要： Methods and systems for transferring media between media source devices and media sink devices are disclosed. Remote control units are used to indicate the media sink and media source devices for transferring media data between these elements.

摘要翻译： 公开了在介质源设备和介质宿设备之间传送介质的方法和系统。 远程控制单元用于指示用于在这些元素之间传送媒体数据的媒体接收器和媒体源设备。

公开(公告)号：US20050007445A1

公开(公告)日：2005-01-13

申请号：US10617549

申请日：2003-07-11

申请人： Jonathan Foote ,  John Adcock ,  Qiong Liu ,  Timothy Black

发明人： Jonathan Foote ,  John Adcock ,  Qiong Liu ,  Timothy Black

IPC分类号： H04N7/15 ,  H04N7/14

CPC分类号： H04N7/142

摘要： A system in accordance with one embodiment of the present invention comprises a device for facilitating video communication between a remote participant and another location. The device can comprise a screen adapted to display the remote participant, the screen having a posture adapted to be controlled by the remote participant. A camera can be mounted adjacent to the screen, and can allow the subject to view a selected conference participant or a desired location such that when the camera is trained on the selected participant or desired location a gaze of the remote participant displayed by the screen appears substantially directed at the selected participant or desired location.

摘要翻译： 根据本发明的一个实施例的系统包括用于促进远程参与者和另一位置之间的视频通信的装置。 设备可以包括适于显示远程参与者的屏幕，屏幕具有适于由远程参与者控制的姿势。 摄像机可以安装在屏幕附近，并且可以允许被摄体观看所选择的会议参与者或期望的位置，使得当在所选择的参与者或期望位置上训练相机时，屏幕显示的远程参与者的凝视出现 基本上指向所选择的参与者或期望位置。