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1. 发明申请

WO2012033716A1 SYSTEM AND METHOD FOR SKIP CODING DURING VIDEO CONFERENCING IN A NETWORK ENVIRONMENT 审中-公开
标题翻译：在网络环境中视频会议期间进行跳码编码的系统和方法
公开(公告)号：WO2012033716A1
公开(公告)日：2012-03-15
申请号：PCT/US2011/050380
申请日：2011-09-02
申请人： CISCO TECHNOLOGY, INC. , TIAN, Dihong , FRIEL, Joseph T. , WEIR, Andrew P.
发明人： TIAN, Dihong , FRIEL, Joseph T. , WEIR, Andrew P.
IPC分类号： H04N7/14 , H04N7/26
CPC分类号： H04N7/147 , H04N19/132 , H04N19/137 , H04N19/14 , H04N19/176
摘要： A method is provided in one example and includes receiving an input video, and identifying values of pixels from noise associated with a current video image within the video input. The method also includes creating a skip-reference video image associated with the identified pixel values, and comparing a portion of the current video image to the skip-reference video image. The method also includes determining a macroblock associated with the current video image to be skipped before an encoding operation occurs.
摘要翻译：在一个示例中提供了一种方法，包括接收输入视频，以及从与视频输入内的当前视频图像相关联的噪声中识别像素的值。该方法还包括创建与识别的像素值相关联的跳过参考视频图像，以及将当前视频图像的一部分与跳过参考视频图像进行比较。该方法还包括在编码操作发生之前确定与要跳过的当前视频图像相关联的宏块。

2. 发明申请

WO2014039381A2 GENERATING AND RENDERING SYNTHESIZED VIEWS WITH MULTIPLE VIDEO STREAMS IN TELEPRESENCE VIDEO CONFERENCE SESSIONS 审中-公开
标题翻译：在电视视频会议中使用多个视频流生成和渲染合成视图
公开(公告)号：WO2014039381A2
公开(公告)日：2014-03-13
申请号：PCT/US2013/057492
申请日：2013-08-30
申请人： CISCO TECHNOLOGY, INC.
发明人： TIAN, Dihong , MAUCHLY, J., William , FRIEL, Joseph, T.
IPC分类号： H04N7/14
CPC分类号： H04N7/152 , H04N7/147 , H04N7/15
摘要： Techniques are provided for establishing a videoconference session between participants at different endpoints, where each endpoint includes at least one computing device and one or more displays. A plurality of video streams is received at an endpoint, and each video stream is classified as at least one of a people view and a data view. The classified views are analyzed to determine one or more regions of interest for each of the classified views, where at least one region of interest has a size smaller than a size of the classified view. Synthesized views of at least some of the video streams are generated, wherein the synthesized views include at least one view including a region of interest, and views including the synthesized views are rendered at one or more displays of an endpoint device.
摘要翻译：提供了用于在不同端点的参与者之间建立视频会议会话的技术，其中每个端点包括至少一个计算设备和一个或多个显示器。在端点处接收多个视频流，并且将每个视频流分类为人视图和数据视图中的至少一个。分析分类视图以确定每个分类视图的一个或多个感兴趣区域，其中至少一个感兴趣区域的尺寸小于分类视图的尺寸。生成至少一些视频流的合成视图，其中合成视图包括包括感兴趣区域的至少一个视图，并且包括合成视图的视图在端点设备的一个或多个显示处呈现。

3. 发明申请

WO2013096041A1 SYSTEM AND METHOD FOR DEPTH-GUIDED IMAGE FILTERING IN A VIDEO CONFERENCE ENVIRONMENT 审中-公开
标题翻译：在视频会议环境中进行深度导图像滤波的系统和方法
公开(公告)号：WO2013096041A1
公开(公告)日：2013-06-27
申请号：PCT/US2012/069111
申请日：2012-12-12
申请人： CISCO TECHNOLOGY, INC.
发明人： TIAN, Dihong
IPC分类号： H04N13/00
CPC分类号： H04N21/816 , H04N7/148 , H04N13/128 , H04N13/161 , H04N13/194 , H04N19/117 , H04N19/136 , H04N19/182 , H04N19/82 , H04N21/234345 , H04N21/2662 , H04N21/4223
摘要： A method is provided in one example embodiment that includes receiving a plurality of depth values corresponding to pixels of an image; and filtering the image as a function of a plurality of variations in the depth values between adjacent pixels of a window associated with the image. In more detailed embodiments, the method may include encoding the image into a bit stream for transmission over a network. The filtering can account for a bit rate associated with the encoding of the image.
摘要翻译：在一个示例实施例中提供了一种方法，其包括接收对应于图像的像素的多个深度值; 并且根据与图像相关联的窗口的相邻像素之间的深度值的多个变化来对图像进行滤波。在更详细的实施例中，该方法可以包括将图像编码为比特流以在网络上传输。滤波可以解释与图像的编码相关联的比特率。

4. 发明申请

WO2009117308A2 VIDEO COMPRESSION USING SEARCH TECHNIQUES OF LONG-TERM REFERENCE MEMORY 审中-公开
标题翻译：利用长期参考记忆搜索技术进行视频压缩
公开(公告)号：WO2009117308A2
公开(公告)日：2009-09-24
申请号：PCT/US2009/036966
申请日：2009-03-12
申请人： CISCO TECHNOLOGY, INC. , MAUCHLY, William , FRIEL, Joseph, T. , MACDONALD, Alan , TIAN, Dihong , CHEN, Wen-Hsiung , ARNAO, Michael, A.
发明人： MAUCHLY, William , FRIEL, Joseph, T. , MACDONALD, Alan , TIAN, Dihong , CHEN, Wen-Hsiung , ARNAO, Michael, A.
IPC分类号： H04N7/26 , H04N7/36 , H04N7/50 , G06F17/30
CPC分类号： H04N7/367 , G06F17/30781 , G06T7/246 , G06T2207/10016 , G06T2207/30196 , H04N19/17 , H04N19/176 , H04N19/46 , H04N19/58 , H04N19/61
摘要： Particular embodiments generally relate to video compression. In one embodiment, a store of reference frames is provided in memory. The reference frames may be classified based on a plurality of classifiers. The classifiers may correspond to features that are found in the reference frame. A frame to encode is then received. The frame is analyzed to determine features found in the frame. As macroblocks in the frame are encoded, a macroblock is analyzed to determine which feature may be included in the macroblock. The feature is used to determine a classifier, which is used to determine a subset of the reference frames. The subset is then searched to determine a reference frame for the macroblock.
摘要翻译：特定实施例一般涉及视频压缩。在一个实施例中，参考帧的存储被提供在存储器中。参考帧可以基于多个分类器进行分类。分类器可以对应于在参考框架中找到的特征。然后接收要编码的帧。分析框架以确定框架中的特征。当帧中的宏块被编码时，宏块被分析以确定哪个特征可以被包括在宏块中。该特征用于确定分类器，该分类器用于确定参考帧的子集。然后搜索该子集以确定该宏块的参考帧。

5. 发明申请

WO2011043970A1 LOCALLY VARIABLE QUANTIZATION AND HYBRID VARIABLE LENGTH CODING FOR IMAGE AND VIDEO COMPRESSION 审中-公开
标题翻译：用于图像和视频压缩的局部可变量化和混合可变长度编码
公开(公告)号：WO2011043970A1
公开(公告)日：2011-04-14
申请号：PCT/US2010/050720
申请日：2010-09-29
申请人： CISCO TECHNOLOGY, INC. , LI, Junlin , TIAN, Dihong , CHEN, Wen-Hsiung , XU, Yian
发明人： LI, Junlin , TIAN, Dihong , CHEN, Wen-Hsiung , XU, Yian
IPC分类号： H04N7/26 , H04N7/30 , H03M7/40
CPC分类号： H03M7/40 , H04N19/126 , H04N19/13 , H04N19/132 , H04N19/147 , H04N19/18 , H04N19/19 , H04N19/60 , H04N19/93
摘要： A coding method, apparatus, and storage media with instructions to carry out a method. The method operates on an ordered series of transform coefficients of a block of image data, and for a fixed quantization method, and includes quantizing and encoding the ordered series to form a coded bitstream. The quantizing and encoding uses one or more variable length code (VLC) mappings. The quantizing includes quantizing to have amplitude- 1 at least one coefficient that would be quantized by the fixed quantization method to have zero amplitude, quantizing to have zero amplitude at least one coefficient that would be quantized by the fixed quantization method to have amplitude- 1, and using the fixed quantization method to quantize any coefficient that is quantized by the fixed quantization method not to have zero amplitude, amplitude- 1, or amplitude- 2.
摘要翻译：一种具有执行方法的指令的编码方法，装置和存储介质。该方法对图像数据块的有序序列变换系数和固定量化方法进行操作，并且包括量化和编码有序序列以形成编码比特流。量化和编码使用一个或多个可变长度码（VLC）映射。量化包括量化具有将通过固定量化方法量化的振幅-1至少一个系数以具有零幅度，量化具有将通过固定量化方法量化的至少一个系数的零幅度以具有幅度1 并且使用固定量化方法来量化由固定量化方法量化的不具有零幅度，幅度-1或幅度2的任何系数。

6. 发明申请

WO2010096342A1 HORIZONTAL GAZE ESTIMATION FOR VIDEO CONFERENCING 审中-公开
标题翻译：用于视频会议的水平GAZE估计
公开(公告)号：WO2010096342A1
公开(公告)日：2010-08-26
申请号：PCT/US2010/024059
申请日：2010-02-12
申请人： CISCO TECHNOLOGY, INC. , TIAN, Dihong , FRIEL, Joseph, T. , MAUCHLY, J., William
发明人： TIAN, Dihong , FRIEL, Joseph, T. , MAUCHLY, J., William
IPC分类号： G06T7/00 , G06T7/20
CPC分类号： G06K9/00604 , G06T7/277 , G06T7/73 , G06T7/77 , G06T2207/10016 , G06T2207/30201
摘要： Techniques are provided to determine the horizontal gaze of a person from a video signal generated from viewing the person with at least one video camera. From the video signal, a head region of the person is detected and tracked. The dimensions and location of a sub-region within the head region is also detected and tracked from the video signal. An estimate of the horizontal gaze of the person is computed from a relative position of the sub-region within the head region.
摘要翻译：提供技术来确定从用至少一个摄像机观看该人而产生的视频信号中的人的水平注视。从视频信号中检测和跟踪该人的头部区域。头部区域内的子区域的尺寸和位置也从视频信号中检测和跟踪。根据头部区域中的子区域的相对位置计算人的水平注视的估计。

7. 发明申请

WO2009046042A2 VARIABLE LENGTH CODING OF COEFFICIENT CLUSTERS FOR IMAGE AND VIDEO COMPRESSION 审中-公开
标题翻译：用于图像和视频压缩的系数组合的可变长度编码
公开(公告)号：WO2009046042A2
公开(公告)日：2009-04-09
申请号：PCT/US2008/078359
申请日：2008-10-01
申请人： CISCO TECHNOLOGY, INC. , GEORGIA TECH RESEARCH CORPORATION , LI, Junlin , ALREGIB, Ghassan , CHEN, Wen-hsiung , TIAN, Dihong , CHANG, Pi Sheng
发明人： LI, Junlin , ALREGIB, Ghassan , CHEN, Wen-hsiung , TIAN, Dihong , CHANG, Pi Sheng
IPC分类号： H04N7/50 , H04N7/26
CPC分类号： H04N19/649 , H04N19/136 , H04N19/18 , H04N19/61 , H04N19/62 , H04N19/91
摘要： A coding method, apparatus, and medium with software encoded thereon to implement a coding method. The coding method includes encoding cluster of consecutive non-zero-valued coefficients, the encoding of a cluster including jointly encoding joint events that each are defined by at least two parameters: the number of zero-valued coefficients preceding the cluster, and the number of non-zero-valued coefficients in the cluster. The encoding of the cluster also includes encoding a parameter indicative of the number of amplitude-1 trailing non-zero-valued coefficients in the cluster, in one version with the parameter indicative of the number of trailing amplitude-1 coefficients part of the joint events such that the coding is according to a 3-dimensional joint variable length coding table. The method further includes encoding the amplitudes of the non-zero-valued coefficients that are not encoded by the joint encoding, e.g., encoding the amplitudes of the other than the trailing amplitude-1 coefficients.
摘要翻译：一种编码方法，装置和介质，其上编码有软件以实现编码方法。编码方法包括对连续的非零值系数的簇进行编码，包括共同编码的关联事件的簇的编码，每个共同事件由至少两个参数定义：群集之前的零值系数的数量和集群中的非零值系数。簇的编码还包括在一个版本中编码指示簇中的幅度-1尾随非零值系数的参数，其中参数指示联合事件的一部分的后向幅度-1系数的数量使得编码根据3维关节可变长度编码表。该方法还包括编码非联合编码的非零值系数的幅度，例如编码除了后沿幅度-1系数之外的幅度。

8. 发明申请

WO2013003076A1 ENCODER-SUPERVISED IMAGING FOR VIDEO CAMERAS 审中-公开
标题翻译：视频摄像机的编码器监控成像
公开(公告)号：WO2013003076A1
公开(公告)日：2013-01-03
申请号：PCT/US2012/042765
申请日：2012-06-15
申请人： CISCO TECHNOLOGY, INC. , TIAN, Dihong , CHUNG, Wing-Kuen , CHEN, Qing
发明人： TIAN, Dihong , CHUNG, Wing-Kuen , CHEN, Qing
IPC分类号： H04N5/225 , H04N5/228 , H04N5/232 , G06K9/36 , G06K9/46
CPC分类号： H04N19/593 , H04N5/225 , H04N5/228 , H04N5/232 , H04N5/23212 , H04N5/2353 , H04N9/735 , H04N19/159
摘要： A controller controls a camera that produces a sequence of images and that has output coupled to a video encoder. The camera has an operating condition including a field of view and lighting, and one or more imaging parameters. The video encoder encodes images from the camera into codewords. The controller receives one or more encoding properties from the video encoder, and causes adjusting one or more of the imaging parameters based on at least one of the received encoding properties, such that the camera produces additional images of the sequence of images for the video encoder using the adjusted one or more imaging parameters.
摘要翻译：控制器控制产生图像序列并具有耦合到视频编码器的输出的相机。相机具有包括视野和照明的操作条件以及一个或多个成像参数。视频编码器将来自相机的图像编码成码字。控制器从视频编码器接收一个或多个编码属性，并且基于所接收的编码属性中的至少一个使得调整一个或多个成像参数，使得相机产生用于视频编码器的图像序列的附加图像使用经调整的一个或多个成像参数。

9. 发明申请

WO2012177421A1 ENROLLMENT IN A TELEPRESENCE SYSTEM USING A FACE-RECOGNITION-BASED IDENTIFICATION SYSTEM 审中-公开
标题翻译：使用基于识别识别系统的电视系统中的注入
公开(公告)号：WO2012177421A1
公开(公告)日：2012-12-27
申请号：PCT/US2012/041520
申请日：2012-06-08
申请人： CISCO TECHNOLOGY, INC. , TIAN, Dihong , MAUCHLY, J., William , FRIEL, Joseph, T.
发明人： TIAN, Dihong , MAUCHLY, J., William , FRIEL, Joseph, T.
IPC分类号： H04N7/15 , G06K9/00
CPC分类号： G06K9/00926 , H04L12/1818 , H04N7/15
摘要： In one embodiment, a method includes obtaining a first image of a party that is stored in a first structure in response to an instruction to enroll the user in a system, and using information associated with the first image to identify a second image stored in a second structure. The second image has a relatively high likelihood of depicting the party. Finally, the method includes enrolling the party in the system, wherein enrolling the party in the system includes associating the second image with the party.
摘要翻译：在一个实施例中，一种方法包括响应于将用户注册到系统中的指令，获得存储在第一结构中的一方的第一图像，以及使用与第一图像相关联的信息来识别存储在系统中的第二图像第二种结构。第二张图片描绘派对的可能性相对较高。最后，该方法包括在该系统中登记该方，其中在该系统中注册该方包括将该第二图像与该方相关联。

10. 发明申请

WO2012068485A1 SYSTEM AND METHOD FOR SKIPPING VIDEO CODING IN A NETWORK ENVIRONMENT 审中-公开
标题翻译：用于在网络环境中移动视频编码的系统和方法
公开(公告)号：WO2012068485A1
公开(公告)日：2012-05-24
申请号：PCT/US2011/061442
申请日：2011-11-18
申请人： CISCO TECHNOLOGY, INC. , MACKIE, David J. , TIAN, Dihong , WEIR, Andrew P. , BUTTIMER, Maurice , FRIEL, Joseph T. , MAUCHLY, J. William , CHEN, Wen-Hsiung
发明人： MACKIE, David J. , TIAN, Dihong , WEIR, Andrew P. , BUTTIMER, Maurice , FRIEL, Joseph T. , MAUCHLY, J. William , CHEN, Wen-Hsiung
IPC分类号： H04N7/15
CPC分类号： H04N7/15 , H04N7/142
摘要： A method is provided in one example and includes receiving a video input from a camera element; using change detection statistics to identify background image data; using the background image data as a temporal reference to determine foreground image data of a particular video frame within the video input; using a selected foreground image for a background registration of a subsequent video frame; and providing at least a portion of the subsequent video frame to a next destination.
摘要翻译：在一个示例中提供了一种方法，并且包括从相机元件接收视频输入; 使用变化检测统计来识别背景图像数据; 使用背景图像数据作为时间参考来确定视频输入内的特定视频帧的前景图像数据; 使用所选择的前景图像来进行后续视频帧的背景注册; 以及将后续视频帧的至少一部分提供给下一个目的地。

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