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    Parameterized filters and signaling techniques
    81.
    发明授权
    Parameterized filters and signaling techniques 有权
    参数化滤波器和信令技术

    公开(公告)号：US08107571B2

    公开(公告)日：2012-01-31

    申请号：US11726395

    申请日：2007-03-20

    申请人： Gary J. Sullivan ,  Sridhar Srinivasan ,  Shankar Regunathan ,  Chengjie Tu

    发明人： Gary J. Sullivan ,  Sridhar Srinivasan ,  Shankar Regunathan ,  Chengjie Tu

    IPC分类号： H04B1/10

    CPC分类号： H03H17/0294 ,  H03H2017/0297

    摘要： Filter taps for filters are specified by filter coefficient parameters. The filter taps are greater in number than the coefficient parameters from which the filter taps are calculated. For example, two coefficient parameters are used to specify a four-tap filter. Filter information can be signaled in a bitstream, such as by signaling one or more family parameters for a filter family and, for each filter in a family, signaling one or more filter tap parameters from which filter taps can be derived. Family parameters can include a number of filters parameter, a resolution parameter, a scaling bits parameter, and/or a full integer position filter present parameter that indicates whether or not the filters include an integer position filter. Filter parameters can be signaled and used to determine coefficient parameters from which filter taps are calculated.

    摘要翻译： 滤波器的滤波器滤波器由滤波器系数参数指定。 滤波器抽头的数量大于计算滤波器抽头的系数参数。 例如，使用两个系数参数来指定四抽头滤波器。 滤波器信息可以在比特流中发信号通知，例如通过发信号通知用于滤波器族的一个或多个系列参数，并且对于一个系列中的每个滤波器来说，信号通知一个或多个滤波器抽头参数，从中可以导出滤波器抽头。 家族参数可以包括多个滤波器参数，分辨率参数，缩放比特参数和/或整数整数位置滤波器参数，其指示滤波器是否包括整数位置滤波器。 滤波器参数可以用信号通知并用于确定计算滤波器抽头的系数参数。

    Field start code for entry point frames with predicted first field
    82.
    发明授权
    Field start code for entry point frames with predicted first field 有权
    具有预测第一个字段的入口点帧的现场起始码

    公开(公告)号：US07852919B2

    公开(公告)日：2010-12-14

    申请号：US10989596

    申请日：2004-11-15

    申请人： Regis J. Crinon ,  Thomas W. Holcomb ,  Shankar Regunathan ,  Sridhar Srinivasan

    发明人： Regis J. Crinon ,  Thomas W. Holcomb ,  Shankar Regunathan ,  Sridhar Srinivasan

    IPC分类号： H04N7/32 ,  H04N3/10

    CPC分类号： H04N19/44 ,  H04N19/70

    摘要： A decoder receives a field start code for an entry point key frame. The field start code indicates a second coded interlaced video field in the entry point key frame following a first coded interlaced video field in the entry point key frame and indicates a point to begin decoding of the second coded interlaced video field. The first coded interlaced video field is a predicted field, and the second coded interlaced video field is an intra-coded field. The decoder decodes the second field without decoding the first field. The field start code can be followed by a field header. The decoder can receive a frame header for the entry point key frame. The frame header may comprise a syntax element indicating a frame coding mode for the entry point key frame and/or a syntax element indicating field types for the first and second coded interlaced video fields.

    摘要翻译： 解码器接收入口点关键帧的场起始码。 场起始码指示入口点关键帧中的第一编码隔行扫描视频字段之后的入口点关键帧中的第二编码隔行扫描视频字段，并且指示开始对第二编码交错视频字段进行解码的点。 第一编码隔行视频字段是预测字段，第二编码隔行视频字段是帧内编码字段。 解码器解码第二场而不解码第一场。 字段起始码可以后跟一个字段标题。 解码器可以接收入口点关键帧的帧头。 帧头可以包括指示用于入口点关键帧的帧编码模式的语法元素和/或指示第一和第二编码隔行视频字段的字段类型的语法元素。

    Technique to enable efficient adaptive streaming and transcoding of video and other signals
    83.
    发明授权
    Technique to enable efficient adaptive streaming and transcoding of video and other signals 有权
    技术能够实现视频和其他信号的高效自适应流和代码转换

    公开(公告)号：US07639739B2

    公开(公告)日：2009-12-29

    申请号：US10286364

    申请日：2002-11-01

    申请人： Kenneth Rose ,  Rui Zhang ,  Shankar Regunathan

    发明人： Kenneth Rose ,  Rui Zhang ,  Shankar Regunathan

    IPC分类号： H04N7/12

    CPC分类号： H04N21/2404 ,  H04N19/102 ,  H04N19/147 ,  H04N19/177 ,  H04N19/188 ,  H04N19/19 ,  H04N19/194 ,  H04N19/30 ,  H04N19/40 ,  H04N19/61 ,  H04N19/65 ,  H04N19/67 ,  H04N19/89 ,  H04N21/234 ,  H04N21/235 ,  H04N21/435 ,  H04N21/6377 ,  H04N21/6473 ,  H04N21/64769 ,  H04N21/658

    摘要： A method is described for efficiently determining total end-to-end distortion of a pre-compressed data stream, such as video streams or other media streams, at the time of delivery over a lossy-network, and for providing adaptive error-resilient delivery schemes based on distortion estimates. The methods can be utilized with single or multilayer packet streams and are particularly well suited for video streams. By way of example, distortion estimates are performed by generating side-information at the time of data stream compression, wherein the side-information is used in conjunction with information about the network status to determine an estimated distortion for the group of packets when the data stream is transported over the network to a destination end. This estimation may be utilized within described resiliency techniques in which the error correction mechanism is selected in response to the estimated distortion, which may be additionally refined in reference to cost factors.

    摘要翻译： 描述了一种用于在通过有损网络传送时有效地确定预压缩数据流（例如视频流或其他媒体流）的总端对端失真的方法，并且用于提供自适应的错误弹性传递 基于失真估计的方案。 这些方法可以用于单个或多个分组流，并且特别适合于视频流。 作为示例，通过在数据流压缩时生成旁侧信息来执行失真估计，其中侧信息结合关于网络状态的信息使用，以确定数据组的估计失真 流通过网络传输到目的地端。 可以在所述的弹性技术中使用该估计，其中响应于估计的失真来选择纠错机制，这可以参考成本因素进一步细化。

    COMPUTATIONAL COMPLEXITY AND PRECISION CONTROL IN TRANSFORM-BASED DIGITAL MEDIA CODEC
    85.
    发明申请
    COMPUTATIONAL COMPLEXITY AND PRECISION CONTROL IN TRANSFORM-BASED DIGITAL MEDIA CODEC 有权
    基于变换的数字媒体编码器的计算复杂度和精度控制

    公开(公告)号：US20080198935A1

    公开(公告)日：2008-08-21

    申请号：US11772076

    申请日：2007-06-29

    申请人： Sridhar Srinivasan ,  Chengjie Tu ,  Shankar Regunathan

    发明人： Sridhar Srinivasan ,  Chengjie Tu ,  Shankar Regunathan

    IPC分类号： H04N7/24

    CPC分类号： H04N21/6547 ,  H04N19/122 ,  H04N19/156 ,  H04N19/46 ,  H04N19/60

    摘要： A digital media encoder/decoder includes signaling of various modes relating to computation complexity and precision at decoding. The encoder may send a syntax element indicating arithmetic precision (e.g., using 16 or 32-bit operations) of the transform operations performed at decoding. The encoder also may signal whether to apply scaling at the decoder output, which permits a wider dynamic range of intermediate data at decoding, but adds to computational complexity due to the scaling operation.

    摘要翻译： 数字媒体编码器/解码器包括在解码时与计算复杂性和精度有关的各种模式的信令。 编码器可以发送指示在解码时执行的变换操作的算术精度（例如，使用16或32位操作）的语法元素。 编码器还可以发信号是否在解码器输出端应用缩放，这允许解码时的中间数据的较宽的动态范围，但由于缩放操作而增加了计算复杂度。