Adapting a video stream
    3.
    发明授权
    Adapting a video stream 有权
    适应视频流

    公开(公告)号:US09432678B2

    公开(公告)日:2016-08-30

    申请号:US12916509

    申请日:2010-10-30

    IPC分类号: H04N19/40 H04N19/58

    CPC分类号: H04N19/40 H04N19/58

    摘要: Adapting characteristics of a video stream. A source video stream is received comprising instructions to employ at least one reference frame at a video adaptation device, wherein the source video stream is encoded. The source video stream is adapted, at the video adaptation device, such that the instructions are adapted to store a different number of reference frames. A video stream is produced with the different number of the reference frames.

    摘要翻译: 适应视频流的特征。 接收源视频流,包括在视频适配装置处采用至少一个参考帧的指令,其中源视频流被编码。 在视频适配装置处,源视频流被适配成使得指令适于存储不同数量的参考帧。 产生具有不同数量的参考帧的视频流。

    METHODS AND SYSTEMS FOR ADAPTING ERROR CORRECTING CODES
    4.
    发明申请
    METHODS AND SYSTEMS FOR ADAPTING ERROR CORRECTING CODES 审中-公开
    适应错误纠正码的方法和系统

    公开(公告)号:US20130039410A1

    公开(公告)日:2013-02-14

    申请号:US13205389

    申请日:2011-08-08

    IPC分类号: H04N7/64 H04N7/26 H04B1/66

    摘要: Methods for adapting the sliding window of sliding window-based error correcting codes based on the coding structure of a compressed media stream are disclosed. In one aspect, a sender packetizes each frame of a media stream to be sent to a receiver into a set of frame packets. The sender also determines compression dependence of each frame and adapts a sliding window of a sliding window-based error correcting code based on the compression dependence of the frame. The sender encodes the frame packets into at least one associated parity packet according to the error correcting code with the adapted sliding window, and sends the frame packets and the at least one associated parity packet to the receiver.

    摘要翻译: 公开了基于压缩媒体流的编码结构来适应基于滑动窗口的纠错码的滑动窗口的方法。 在一个方面,发送方将要发送到接收机的媒体流的每个帧打包成一组帧分组。 发送者还确定每个帧的压缩依赖性,并且基于帧的压缩依赖性来适配基于滑动窗口的纠错码的滑动窗口。 发送者根据具有适应的滑动窗口的纠错码将帧分组编码成至少一个相关联的奇偶校验分组,并将帧分组和至少一个相关联的奇偶校验分组发送到接收机。

    ADAPTING VIDEO STREAM FOR ERROR RESILIENCE
    5.
    发明申请
    ADAPTING VIDEO STREAM FOR ERROR RESILIENCE 审中-公开
    适应视频流的错误恢复

    公开(公告)号:US20120106625A1

    公开(公告)日:2012-05-03

    申请号:US13011480

    申请日:2011-01-21

    IPC分类号: H04N7/26

    CPC分类号: H04N19/40 H04N19/58

    摘要: Adapting characteristics of a video stream. A video stream is received, at a video adaptation device, which employs a first reference frame. A determination is made, at a video adaptation device, to splice the video stream to employ a second reference frame in place of the first reference frame. The video stream is spliced, at a video adaptation device, to create a spliced video stream that employs the second reference frame.

    摘要翻译: 适应视频流的特征。 在采用第一参考帧的视频适配装置处接收视频流。 在视频适配装置处确定代替第一参考帧来拼接视频流以采用第二参考帧。 视频流在视频适配装置处被拼接,以创建采用第二参考帧的拼接视频流。

    Estimating video cross-talk
    6.
    发明授权
    Estimating video cross-talk 有权
    估计视频串流

    公开(公告)号:US08878894B2

    公开(公告)日:2014-11-04

    申请号:US12883135

    申请日:2010-09-15

    CPC分类号: H04N5/21 H04N7/144 H04N17/00

    摘要: A video cross-talk estimator comprising a visual input signal receiver configured to receive a visual input signal, a capture signal receiver configured to receive a capture signal, and a signal based video-cross talk determiner configured to estimate video cross-talk based on at least two frames of the visual input signal. The estimation of the video cross-talk is signal based.

    摘要翻译: 一种视频串扰估计器,包括被配置为接收视觉输入信号的视觉输入信号接收器,被配置为接收捕获信号的捕获信号接收器,以及基于信号的视频串扰确定器,其被配置为基于at估计视频串扰 至少两帧视觉输入信号。 视频串扰的估计是基于信号的。

    ESTIMATING VIDEO CROSS-TALK
    7.
    发明申请
    ESTIMATING VIDEO CROSS-TALK 有权
    估计视频交叉

    公开(公告)号:US20120062799A1

    公开(公告)日:2012-03-15

    申请号:US12883135

    申请日:2010-09-15

    IPC分类号: H04N5/21

    CPC分类号: H04N5/21 H04N7/144 H04N17/00

    摘要: A video cross-talk estimator comprising a visual input signal receiver configured to receive a visual input signal, a capture signal receiver configured to receive a capture signal, and a signal based video-cross talk determiner configured to estimate video cross-talk based on at least two frames of the visual input signal. The estimation of the video cross-talk is signal based.

    摘要翻译: 一种视频串扰估计器,包括被配置为接收视觉输入信号的视觉输入信号接收器,被配置为接收捕获信号的捕获信号接收器,以及基于信号的视频串扰确定器,其被配置为基于at估计视频串扰 至少两帧视觉输入信号。 视频串扰的估计是基于信号的。

    Privacy control for a visual-collaborative system
    9.
    发明授权
    Privacy control for a visual-collaborative system 有权
    视觉协作系统的隐私控制

    公开(公告)号:US09350940B1

    公开(公告)日:2016-05-24

    申请号:US12608807

    申请日:2009-10-29

    IPC分类号: H04N7/14

    CPC分类号: H04N7/141 H04N7/147

    摘要: A visual-collaborative system including a display screen configured to display images captured at a remote location and a camera configured to capture an image of an object to be transmitted to a remote location. The visual-collaborative system also includes a privacy controller configured to transmit the image comprising a first fidelity in response to the object located in a designated proximity area and to transmit the image comprising a second fidelity in response to the object located outside the designated proximity area.

    摘要翻译: 一种视觉协作系统,包括被配置为显示在远程位置捕获的图像的显示屏幕和被配置为捕获要发送到远程位置的对象的图像的相机。 视觉协作系统还包括一个隐私控制器,该隐私控制器被配置为响应于位于指定的接近区域中的对象传送包括第一保真度的图像,并且响应于位于指定接近区域外部的对象发送包括第二保真度的图像 。

    System and apparatus for error control codes based on layering and linear transformations
    10.
    发明授权
    System and apparatus for error control codes based on layering and linear transformations 有权
    基于分层和线性变换的错误控制代码的系统和装置

    公开(公告)号:US08023570B2

    公开(公告)日:2011-09-20

    申请号:US12027005

    申请日:2008-02-06

    IPC分类号: H04B14/04 H04K1/10 H04L27/28

    摘要: A powerful new class of methods for encoding digital data for reliable transmission over unreliable communication channels is described. With this method, the message bits are divided into multiple submessages and the bits in each layer are encoded using a standard error correction code to provide a plurality of subcodewords. A first linear transformation is applied to each of the subcodewords. The so-transformed subcodewords from the different submessages are then combined to form a first redundancy block to be transmitted. Additional redundancy blocks are generated by repeating this process on the same message but with jointly related nonidentical sets of linear transformations. The result is a set of codewords for each message which are then used to generate a transmitted waveform in one of several different ways, depending upon the application. For example, the codewords can be used in sequence (temporally) to form a rateless code for transmission over channels of unknown quality, in which case a receiver accumulates as many of the codewords as are necessary to successfully decode. As another example, the codewords can be spatially distributed if the channel has multiple-inputs, as would be the case in a multi-antenna system. As still another example, the codewords can be distributed over subchannels in a frequency-division multiplexing system.

    摘要翻译: 描述了一种用于编码数字数据以在不可靠的通信信道上进行可靠传输的强大的新一类方法。 利用这种方法,消息比特被分成多个子消息,并且使用标准纠错码对每个层中的比特进行编码以提供多个子素数。 第一个线性变换被应用于每个子光束。 然后将来自不同子消息的如此变换的子光束组合以形成要发送的第一冗余块。 通过在相同的消息上重复该过程而产生附加冗余块,但是具有联合相关的非同一组线性变换。 结果是针对每个消息的一组码字,然后根据应用程序以多种不同方式之一生成发送波形。 例如,可以按顺序(时间上)使用码字来形成用于在未知质量的信道上进行传输的无码代码,在这种情况下,接收器累积与成功解码所需的许多码字一样多的码字。 作为另一示例,如果信道具有多个输入,则码字可以在空间上分布,如在多天线系统中的情况。 作为又一示例,码字可以分布在频分复用系统中的子信道上。