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1. 发明申请

WO2011032290A1 METHOD AND APPARATUS FOR COMMUNICATING AN IMAGE OVER A NETWORK WITH SPATIAL SCALABILITY 审中-公开
标题翻译：用于在具有空间可扩展性的网络上传送图像的方法和装置
公开(公告)号：WO2011032290A1
公开(公告)日：2011-03-24
申请号：PCT/CA2010/001469
申请日：2010-09-17
申请人： MAGOR COMMUNICATIONS CORPORATION , HUANG, Xiaodong , HOSSEINI, Mojtaba , WHITE, Patrick
发明人： HUANG, Xiaodong , HOSSEINI, Mojtaba , WHITE, Patrick
IPC分类号： H04B1/66 , H04N7/26 , G06T9/00
CPC分类号： H04N7/147 , H04N7/15 , H04N21/234327 , H04N21/4516 , H04N21/454 , H04N21/4788
摘要： Visual information over a network by filtering a full resolution image signal to produce a series of sub-bands, wherein at least one of the sub-bands constitutes a base sub-band representing an image of reduced resolution and wherein additional sub-bands carry higher resolution information. At least the base sub-band is transmitted to a far end endpoint to permit image reconstruction at the far end endpoint at a degree of resolution dependent on the number of sub-bands used to reconstruct the image.
摘要翻译：通过过滤全分辨率图像信号以产生一系列子带的网络上的视觉信息，其中至少一个子带构成表示降低分辨率的图像的基本子带，并且其中附加子带携带更高的子带分辨率信息。至少基本子带被发送到远端端点，以便在取决于用于重构图像的子带的数量的分辨率下在远端端点处进行图像重建。

2. 发明申请

WO2010031170A1 LOW LATENCY VIDEO ENCODER 审中-公开
标题翻译：低延迟视频编码器
公开(公告)号：WO2010031170A1
公开(公告)日：2010-03-25
申请号：PCT/CA2009/001297
申请日：2009-09-18
申请人： MAGOR COMMUNICATIONS CORPORATION , WHITE, Patrick , HOSSEINI, Mojtaba
发明人： WHITE, Patrick , HOSSEINI, Mojtaba
IPC分类号： H04N7/50 , H04N7/15
CPC分类号： H04N7/147 , H04N7/127 , H04N19/17 , H04N19/30 , H04N19/61
摘要： Video data that is associated with a videoconference or a telepresence session is captured and a video signal relating thereto is provided. The video signal is divided into segments, which are identical from one video frame to another subsequent video frame within the video signal. Each segment is encoded independently, to result in encoded segment data such that both I-frames and P-frames are generated for a given segment, so as to support independent reconstruction of segments at a distant end. The encoded segment data is transmitted subsequently to the distant end.
摘要翻译：捕获与视频会议或远程呈现会话相关联的视频数据，并提供与其相关的视频信号。视频信号被划分成视频信号中的一个视频帧到另一个后续视频帧相同的段。每个片段被独立地编码，以产生经编码的片段数据，使得为给定片段生成I帧和P帧，以支持在远端的片段的独立重建。编码段数据随后发送到远端。

3. 发明申请

WO2010051618A1 STABLE VIDEO RATE ADAPTATION FOR CONGESTION CONTROL 审中-公开
标题翻译：稳定的视频速度适应控制
公开(公告)号：WO2010051618A1
公开(公告)日：2010-05-14
申请号：PCT/CA2009/001296
申请日：2009-09-18
申请人： MAGOR COMMUNICATIONS CORPORATION , HOSSEINI, Mojtaba , WHITE, Patrick
发明人： HOSSEINI, Mojtaba , WHITE, Patrick
IPC分类号： H04N7/15 , H04N17/00 , H04N7/58
CPC分类号： H04N7/148 , H04N19/115 , H04N19/156
摘要： Exchanging of videoconference data between a first endpoint and a second endpoint via a network includes receiving, at the first endpoint, statistical data relating to transmission of first videoconference data. In particular, the first videoconference data is data that is transmitted previously from the first endpoint to the second endpoint via the network, and the statistical data relates to network performance characteristics during transmission of the first videoconference data. An approximately optimized data transmission rate for the network performance characteristics is determined, based on the statistical data. The output bit rate of a video encoder associated with the first endpoint is adjusted, such that second videoconference data, relating to the same videoconference at a time that is later than the first videoconference data, is encoded to provide output data at an adjusted output bit rate for being transmitted via the network at approximately the optimized data transmission rate.
摘要翻译：经由网络在第一端点和第二端点之间交换视频会议数据包括在第一端点处接收与第一视频会议数据的传输有关的统计数据。特别地，第一视频会议数据是先前从第一端点经由网络发送到第二端点的数据，并且统计数据与第一视频会议数据传输期间的网络性能特性有关。基于统计数据确定网络性能特征的近似优化的数据传输速率。与第一端点相关联的视频编码器的输出比特率被调整，使得与稍晚于第一视频会议数据的时间相同的视频会议的第二视频会议数据被编码，以在调整后的输出位以大约优化的数据传输速率通过网络发送的速率。

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