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    Video content streaming through a wireless access point
    3.
    发明申请
    Video content streaming through a wireless access point 审中-公开
    视频内容通过无线接入点流式传输

    公开(公告)号：US20080040757A1

    公开(公告)日：2008-02-14

    申请号：US11496531

    申请日：2006-07-31

    申请人： David Romano ,  Xiancheng Yuan ,  Bapi Vinnakota ,  Liang-Min Wang ,  Yogesh Bansal

    发明人： David Romano ,  Xiancheng Yuan ,  Bapi Vinnakota ,  Liang-Min Wang ,  Yogesh Bansal

    IPC分类号： H04N7/18

    CPC分类号： H04L12/4013 ,  H04L43/00 ,  H04L47/14 ,  H04L47/17 ,  H04L47/263

    摘要： A method that includes streaming video content at a given bit-rate from a computing platform through a wireless access point and to a digital media adaptor that decodes the video content for display. A communication channel used to stream the video content to the digital media adaptor is monitored and information associated with the communication channel as at least a portion of the video content is streamed from the computing platform to the digital media adaptor is collected. Available bandwidth for the communication channel is determined based on the collected information. An adjustment to the given bit-rate that another portion of the video content is streamed from the computing platform is made based on the available bandwidth.

    摘要翻译： 一种方法，其包括以计算平台通过无线接入点的给定比特率流式传输视频内容和解码视频内容以供显示的数字媒体适配器。 监视用于将视频内容流式传输到数字媒体适配器的通信信道，并收集与计算平台流式传输到数字媒体适配器的视频内容的至少一部分与通信信道相关联的信息。 基于收集的信息确定通信信道的可用带宽。 基于可用带宽，对视频内容的另一部分从计算平台流式传输的给定比特率进行调整。

    Method and apparatus for processing block coded image data to reduce boundary artifacts between adjacent image blocks
    4.
    发明授权
    Method and apparatus for processing block coded image data to reduce boundary artifacts between adjacent image blocks 失效
    用于处理块编码图像数据以减少相邻图像块之间的边界伪影的方法和装置

    公开(公告)号：US5367385A

    公开(公告)日：1994-11-22

    申请号：US866031

    申请日：1992-05-07

    申请人： Xiancheng Yuan

    发明人： Xiancheng Yuan

    IPC分类号： H04N7/26 ,  H04N7/30 ,  H04N7/50 ,  H04N1/415

    CPC分类号： H04N19/86 ,  H04N19/117 ,  H04N19/157 ,  H04N19/176 ,  H04N19/527 ,  H04N19/61

    摘要： A method and apparatus for processing block coded image data wherein each block comprises a plurality of pixels. A local pixel is selected from a first block of pixels. The selected pixel is preferably near a border between the first block of pixels and a second block of pixels. At least one external pixel is selected from the second block of pixels. The selected external pixel(s) is (are) also near the border. The selected local pixel is modified to reduce the difference between the local pixel and the selected external pixel(s). The selected pixel value is modified as follows. A low pass filter coefficient is selected for each selected local pixel value and for each selected external pixel value. The selected local pixel value and the external pixel values are each multiplied by their corresponding low pass filter coefficient. The products of these multiplications are summed together to form a low pass filtered pixel value.

    摘要翻译： 一种用于处理块编码图像数据的方法和装置，其中每个块包括多个像素。 从第一像素块中选择局部像素。 所选择的像素优选地在第一像素块和第二像素块之间的边界附近。 从第二像素块中选择至少一个外部像素。 所选择的外部像素也在边界附近。 修改所选择的局部像素以减少局部像素与所选择的外部像素之间的差异。 所选像素值如下修改。 针对每个选定的局部像素值和每个选定的外部像素值选择低通滤波器系数。 所选择的局部像素值和外部像素值分别乘以它们对应的低通滤波器系数。 将这些乘法的乘积相加在一起形成低通滤波像素值。

    Hierarchical entropy coded lattice threshold quantization encoding method and apparatus for image and video compression
    5.
    发明授权
    Hierarchical entropy coded lattice threshold quantization encoding method and apparatus for image and video compression 失效
    用于图像和视频压缩的分层熵编码的格子阈值量化编码方法和装置

    公开(公告)号：US5150209A

    公开(公告)日：1992-09-22

    申请号：US698396

    申请日：1991-05-10

    申请人： Richard L. Baker ,  Jeffrey Bernstein ,  Bernd Girod ,  Xiancheng Yuan ,  Edmund Thompson

    发明人： Richard L. Baker ,  Jeffrey Bernstein ,  Bernd Girod ,  Xiancheng Yuan ,  Edmund Thompson

    IPC分类号： G06T9/00 ,  H04N7/26 ,  H04N7/28 ,  H04N7/46

    CPC分类号： G06T9/008 ,  H04N19/00 ,  H04N19/186 ,  H04N19/577 ,  H04N19/61 ,  H04N19/63 ,  H04N19/94

    摘要： A method and apparatus for encoding interframe error data in an image transmission system, and in particular in a motion compensated image transmission system for transmitting a sequence of image frames from a transmitter to a receiver, employ hierarchical entropy coded lattice threshold quantization to increase the data compression of the images being transmitted. The method and apparatus decimate an interframe predicted image data and an uncoded current image data, and apply hierarchical entropy coded lattice threshold quantization encoding to the resulting pyramid data structures. Lossy coding is applied on a level-by-level basis for generating the encoded data representation of the image difference between the predicted image data and the uncoded original image. The method and apparatus are applicable to systems transmitting a sequence of image frames (or other pattern data, such as speech) both with and without motion compensation.

    摘要翻译： 一种用于对图像传输系统中的帧间错误数据进行编码的方法和装置，特别是在用于从发射机到接收机发送图像帧序列的运动补偿图像传输系统中，采用层次熵编码的格子阈值量化来增加数据 正在传输的图像的压缩。 所述方法和装置对帧间预测图像数据和未编码的当前图像数据进行抽取，并对所得到的金字塔数据结构应用分层熵编码的晶格阈值量化编码。 在逐级的基础上应用有损编码，用于生成预测图像数据和未经编码的原始图像之间的图像差的编码数据表示。 该方法和装置适用于传送具有和不具有运动补偿的图像帧序列（或诸如语音的其它图案数据）的系统。