公开(公告)号：US20050201616A1

公开(公告)日：2005-09-15

申请号：US10801450

申请日：2004-03-15

申请人： Henrique Malvar ,  Li-wei He ,  Ross Cutler

发明人： Henrique Malvar ,  Li-wei He ,  Ross Cutler

IPC分类号： G06T1/00 ,  G06T3/40 ,  H04N1/46 ,  H04N1/60 ,  G06K9/00

CPC分类号： G06T3/4015

摘要： A gradient-corrected linear interpolation method and system for the demosaicing of color images. The method and system compute an interpolation using some a current technique (preferably a bilinear interpolation technique to reduce computational complexity), compute a correction term (such as a gradient of a desired color at a given pixel), and linearly combine the interpolation and the correction term to produce a corrected, high-quality interpolation of a missing color value at a pixel. The correction term may be a gradient correction term computed from the current color of the current pixel. This gradient is directly used to affect and correct the estimated color value produced by the prior art interpolation technique. The gradient-corrected linear interpolation method and system may also apply a gradient-correction gain to the gradient correction term. This gradient-correction gain affects the amount of gradient correction that is applied to the interpolation.

摘要翻译： 用于彩色图像去马赛克的渐变校正线性插值方法和系统。 该方法和系统使用一些当前技术（优选双线性插值技术来减少计算复杂度）来计算插值，计算校正项（例如给定像素处的期望颜色的梯度），并且将内插和 校正项，以产生在像素处缺失颜色值的校正的高质量插值。 校正项可以是从当前像素的当前颜色计算的梯度校正项。 该梯度直接用于影响和校正由现有技术插值技术产生的估计颜色值。 梯度校正线性插值方法和系统还可以对梯度校正项应用梯度校正增益。 该梯度校正增益影响应用于插值的梯度校正量。

公开(公告)号：USD506192S1

公开(公告)日：2005-06-14

申请号：US29204471

申请日：2004-04-30

申请人： Ross Cutler ,  Jaysun Stockdell-Giesler

设计人： Ross Cutler ,  Jaysun Stockdell-Giesler

公开(公告)号：US20140032679A1

公开(公告)日：2014-01-30

申请号：US13561917

申请日：2012-07-30

申请人： Ankit Tandon ,  William Verthein ,  Senthil Velayutham ,  Ross Cutler

发明人： Ankit Tandon ,  William Verthein ,  Senthil Velayutham ,  Ross Cutler

IPC分类号： G06F15/16

CPC分类号： H04L12/1827 ,  H04N7/141 ,  H04N7/15

摘要： Provided herein are systems, methods, and software for facilitating collaboration environments. In at least one implementation, a presentation of an initial view of a collaboration scene is presented within a collaboration environment. A portion of the collaboration scene is identified that corresponds to an object of interest selected for separate viewing. A separate presentation within the collaboration environment is initiated related to the portion of the scene corresponding to the object of interest.

摘要翻译： 本文提供的是用于促进协作环境的系统，方法和软件。 在至少一个实现中，在协作环境中呈现协作场景的初始视图的呈现。 识别出与所选择的用于单独观看的感兴趣对象相对应的协作场景的一部分。 开始协作环境中的单独表现与与感兴趣对象相对应的场景的部分相关。

公开(公告)号：US08219387B2

公开(公告)日：2012-07-10

申请号：US11953764

申请日：2007-12-10

申请人： Ross Cutler ,  Xinding Sun ,  Senthil Velayutham

发明人： Ross Cutler ,  Xinding Sun ,  Senthil Velayutham

IPC分类号： G06F15/00 ,  G10L11/00 ,  G10L19/12 ,  G10L21/02 ,  G10L17/00

CPC分类号： G06K9/6293 ,  G10L2021/02082 ,  G10L2021/02166

摘要： Frames containing audio data may be received, the audio data having been derived from a microphone array, at least some of the frames containing residual acoustic echo after having acoustic echo partially removed therefrom. Probability distribution functions are determined from the frames of audio data. A probability distribution function comprises likelihoods that respective directions are directions of sources of sounds. An active speaker may be identified in frames of video data based on the video data and based on audio information derived from the audio data, where use of the audio information as a basis for identifying the active speaker is controlled by determining whether the probability distribution functions indicate that corresponding audio data includes residual acoustic echo.

摘要翻译： 可以接收包含音频数据的帧，音频数据已经从麦克风阵列导出，至少一些帧在具有从其中部分地去除声学回声之后包含残余声学回声。 概率分布函数由音频数据的帧确定。 概率分布函数包括各个方向是声源的方向的似然性。 可以基于视频数据在视频数据的帧中基于从音频数据导出的音频信息来识别有源扬声器，其中通过确定概率分布函数是否控制通过音频信息作为用于识别有源说话者的基础的使用 指示对应的音频数据包括残余声学回声。

公开(公告)号：US07428000B2

公开(公告)日：2008-09-23

申请号：US10608313

申请日：2003-06-26

申请人： Ross Cutler ,  Yong Rui ,  Anoop Gupta

发明人： Ross Cutler ,  Yong Rui ,  Anoop Gupta

IPC分类号： H04N7/14

CPC分类号： H04N7/15 ,  H04N7/152 ,  H04N7/155

摘要： A system and method for teleconferencing and recording of meetings. The system uses a variety of capture devices (a novel 360° camera, a whiteboard camera, a presenter view camera, a remote view camera, and a microphone array) to provide a rich experience for people who want to participate in a meeting from a distance. The system is also combined with speaker clustering, spatial indexing, and time compression to provide a rich experience for people who miss a meeting and want to watch it afterward.

摘要翻译： 电话会议和会议记录的系统和方法。 该系统使用各种捕获设备（新颖的360度相机，白板摄像头，演示者相机，遥控摄像头和麦克风阵列），为希望参加会议的人们提供丰富的体验 距离。 该系统还结合扬声器群集，空间索引和时间压缩，为错过会议并希望观看的人们提供丰富的体验。

公开(公告)号：US07397504B2

公开(公告)日：2008-07-08

申请号：US10602187

申请日：2003-06-24

申请人： Ross Cutler

发明人： Ross Cutler

IPC分类号： H04N5/262 ,  H04N5/225 ,  G06K9/36

CPC分类号： H04N1/19594 ,  H04N5/2251 ,  H04N5/2254 ,  H04N5/2259 ,  H04N2201/0438

摘要： A whiteboard view camera, which in one embodiment is mounted on a boom, which is fixed above the whiteboard. However, the whiteboard view camera can also be wall or table mounted. The whiteboard view camera differs from an ordinary camera by allowing the lens to tilt with respect to the sensor plane, and shift with respect to the central ray. When the tilt angle α is zero, then the resolution of whiteboard is uniform (e.g., the top and bottom of the whiteboard have the same resolution). In addition, the focus plane is equal to the whiteboard plane, so depth of field issues are not a problem (e.g., a large aperture can be used). Hence, no image noise is introduced. A key contribution of the whiteboard view camera configuration according to the invention is the use of a view camera to capture whiteboard images at uniform resolutions. One embodiment of the whiteboard view camera employs a microphone array of the invention and uses a computer to optimize the image data and audio signals.

摘要翻译： 一种白板摄像机，其在一个实施例中安装在固定在白板上方的吊杆上。 但是，白板摄像头也可以是墙壁或桌面安装。 通过允许透镜相对于传感器平面倾斜并且相对于中心光线移动，白板观察照相机与普通照相机不同。 当倾斜角α为零时，白板的分辨率是均匀的（例如，白板的顶部和底部具有相同的分辨率）。 此外，焦平面等于白板平面，因此景深问题不是问题（例如，可以使用大的光圈）。 因此，不会引入图像噪声。 根据本发明的白板观察照相机配置的关键贡献是使用观看照相机以均匀分辨率捕获白板图像。 白板摄像机的一个实施例采用本发明的麦克风阵列，并使用计算机来优化图像数据和音频信号。

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。

公开(公告)号：US20070019066A1

公开(公告)日：2007-01-25

申请号：US11171630

申请日：2005-06-30

申请人： Ross Cutler

发明人： Ross Cutler

IPC分类号： H04N7/14

CPC分类号： H04N5/2628 ,  H04N5/23238 ,  H04N7/142

摘要： A method and system for producing normalized images of conference participants so that the participants appear to be approximately the same size when the images are displayed is provided. The normalizing system normalizes the size of images based on constraints relating to the distance of participants from the location of the camera. To normalize the image of a participant, the system zooms the camera to account for the distance of the participant from the camera.

摘要翻译： 一种用于产生会议参与者的标准化图像的方法和系统，使得参与者在显示图像时看起来大致相同的大小。 归一化系统基于与参与者距相机位置的距离有关的约束来规范图像的尺寸。 要规范参与者的图像，系统会将相机缩放以考虑参与者与相机的距离。

公开(公告)号：US20060023074A1

公开(公告)日：2006-02-02

申请号：US10902675

申请日：2004-07-28

申请人： Ross Cutler

发明人： Ross Cutler

IPC分类号： H04N5/225 ,  H04N5/76

CPC分类号： H04N5/2259 ,  G06T7/80 ,  H04N5/23238

摘要： Improved camera calibration techniques, including an improved up look angle and an improved method for calibrating a virtual center of projection. By using a view camera technique for the up look angle, the image sensors can be mounted flat to a Printed Circuit Board (PCB). By using a sub-region of the image sensor for the active area of the camera it is possible to calibrate the virtual center of projection (C′).

公开(公告)号：US20050285943A1

公开(公告)日：2005-12-29

申请号：US10978172

申请日：2004-10-30

申请人： Ross Cutler

发明人： Ross Cutler

IPC分类号： G03B37/00 ,  G06N99/00 ,  G06T1/00 ,  G06T3/00 ,  G06T5/40 ,  G06T7/00 ,  H04N1/387 ,  H04N1/60 ,  H04N5/225 ,  H04N5/265 ,  H04N5/76 ,  H04N9/73 ,  H04N17/00

CPC分类号： G06K9/00295 ,  H04N1/3876 ,  H04N1/6027 ,  H04N5/23238 ,  H04N5/247 ,  H04N7/147 ,  H04N7/15 ,  H04N7/155 ,  H04N9/73 ,  H04N17/002

摘要： Faces of speakers in a meeting or conference are automatically detected and facial images corresponding to each speaker are stored in a faces database. A timeline is created to graphically identify when each speaker is speaking during playback of a recording of the meeting. Instead of generically identifying each speaker in the timeline, a facial image is shown to identify each speaker associated with the timeline.

摘要翻译： 自动检测会议或会议中的扬声器的面部，并将与每个说话者相对应的面部图像存储在面部数据库中。 创建一个时间表，以图形方式识别每个演讲者在播放会议记录期间的发言时间。 不是一般地识别时间线中的每个说话者，而是显示面部图像以识别与时间线相关联的每个说话者。