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    Video compositing of an arbitrary number of source streams using flexible macroblock ordering
    133.
    发明申请
    Video compositing of an arbitrary number of source streams using flexible macroblock ordering 有权
    使用灵活的宏块排序的任意数量的源流的视频合成

    公开(公告)号：US20090067507A1

    公开(公告)日：2009-03-12

    申请号：US11900189

    申请日：2007-09-10

    申请人： Randall B. Baird ,  Arturo A. Rodriguez

    发明人： Randall B. Baird ,  Arturo A. Rodriguez

    IPC分类号： H04B1/66

    CPC分类号： H04N19/40 ,  H04N7/152 ,  H04N19/103 ,  H04N19/129 ,  H04N19/136 ,  H04N19/17 ,  H04N19/174 ,  H04N19/46 ,  H04N19/59 ,  H04N19/61 ,  H04N19/70 ,  H04N21/2365 ,  H04N21/4347 ,  H04N21/440272 ,  H04N21/8451

    摘要： In one embodiment, a system includes a compositor operable to receive a plurality of source video streams, each containing source images, and to convert each of the source video streams into source slice groups using flexible macroblock ordering (FMO). The compositor is further operable to add pad slice groups to the source slice groups to create a composite image, and reorder the source slice groups and pad slice groups into a single composite output stream. A device receives the single composite output stream and displays the composite image as a rectangular picture that has a size larger than that of any of the source images. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure.

    摘要翻译： 在一个实施例中，系统包括合成器，其可操作以接收多个源视频流，每个源视频流包含源图像，并且使用灵活的宏块排序（FMO）将每个源视频流转换为源片组。 合成器还可操作以将焊盘切片组添加到源切片组以创建合成图像，并将源切片组和焊盘切片组重新排序成单个复合输出流。 设备接收单个复合输出流并将合成图像显示为具有比任何源图像大的尺寸的矩形图像。 要强调的是，该摘要被提供以符合要求抽象的规则，允许搜索者或其他读者快速确定技术公开内容的主题。

    DYNAMIC MANAGEMENT OF PICTURE QUALITY IN A VIDEO CONFERENCE WITH DIVERSIFIED CONSTRAINTS
    134.
    发明申请
    DYNAMIC MANAGEMENT OF PICTURE QUALITY IN A VIDEO CONFERENCE WITH DIVERSIFIED CONSTRAINTS 有权
    具有多元约束的视频会议中的图像质量动态管理

    公开(公告)号：US20090033739A1

    公开(公告)日：2009-02-05

    申请号：US11831729

    申请日：2007-07-31

    申请人： Shantanu Sarkar ,  Arturo A. Rodriguez

    发明人： Shantanu Sarkar ,  Arturo A. Rodriguez

    IPC分类号： H04N7/14

    CPC分类号： H04N21/2402 ,  H04N7/152 ,  H04N19/115 ,  H04N19/156 ,  H04N19/164 ,  H04N19/187 ,  H04N19/30 ,  H04N21/234327

    摘要： In one embodiment, a method dynamically configures a BL bandwidth in a conference based on bandwidth capabilities in the video conferencing network. In one embodiment, the conference may include any combination of endpoints characterized as BL endpoints and SVCL endpoints. The method includes determining one or more bandwidth capabilities for a plurality of endpoints participating in a conference. The bandwidth capabilities for each respective endpoint may be based on its video decoding capability, the maximum bit-rate it can accept, the video encoding capability of the other endpoints, or a bandwidth constraint manifestation in a portion of the network, etc.

    摘要翻译： 在一个实施例中，一种方法基于视频会议网络中的带宽能力动态地配置会议中的BL带宽。 在一个实施例中，会议可以包括以BL端点和SVCL端点为特征的端点的任何组合。 该方法包括确定参与会议的多个端点的一个或多个带宽能力。 每个相应端点的带宽能力可以基于其视频解码能力，其可以接受的最大比特率，其他端点的视频编码能力，或网络的一部分中的带宽约束表现等。

    Methods and apparatus for comparing blocks of pixels
    140.
    发明授权
    Methods and apparatus for comparing blocks of pixels 失效
    用于比较像素块的方法和装置

    公开(公告)号：US6016163A

    公开(公告)日：2000-01-18

    申请号：US815259

    申请日：1997-03-12

    申请人： Arturo A. Rodriguez ,  Neilesh R. Patel ,  Timothy W. Simerly

    发明人： Arturo A. Rodriguez ,  Neilesh R. Patel ,  Timothy W. Simerly

    IPC分类号： H04N20060101 ,  H04N3/00 ,  H04N5/00 ,  H04N7/12 ,  H04N7/24 ,  H04N7/26 ,  H04N11/02 ,  H04N11/04

    CPC分类号： H04N19/433

    摘要： Techniques for comparing blocks of pixels in digital image encoding. The techniques apply a pattern of elements containing contiguous pixels to the blocks being compared, and only the pixels in the elements are compared. The pixels are contiguous in the horizontal dimension of the digital image, which ensures that the block matching process is sensitive to small-scale vertical features of the image. A version of the technique which is particularly advantageous for use with DSPs that can process the pixels in a word in parallel uses checkerboard patterns in which each element is a word. Variations on the patterns take into account the fact that the block of pixels being compared may be word-aligned, misaligned by one pixel, misaligned by two pixels, and misaligned by three pixels. Misalignment may be dealt with by not comparing pixels that do not belong to the blocks being compared or by using an aligned pattern which does not completely cover the block and adding elements in the portion covered by the pattern to compensate for the elements that are not covered.

    摘要翻译： 用于比较数字图像编码中的像素块的技术。 该技术将包含连续像素的元素的图案应用于正被比较的块，并且仅比较元素中的像素。 像素在数字图像的水平维度上是连续的，这确保块匹配过程对图像的小尺度垂直特征敏感。 特别适用于可以并行处理单词中的像素的DSP的技术的一种版本使用每个元素是单词的棋盘格图案。 模式的变化考虑到被比较的像素块可能是字对准的，由一个像素偏移，两个像素对准，并且不对齐三个像素。 可以通过不比较不属于正在比较的块的像素或通过使用不完全覆盖块的对齐图案并且在由图案覆盖的部分中添加元素以补偿未被覆盖的元素来处理未对准 。