BORDER PIXEL PADDING FOR INTRA PREDICTION IN VIDEO CODING
    31.
    发明申请
    BORDER PIXEL PADDING FOR INTRA PREDICTION IN VIDEO CODING 审中-公开
    用于视频编码的内部预测的边界像素包装

    公开(公告)号:US20120314767A1

    公开(公告)日:2012-12-13

    申请号:US13493640

    申请日:2012-06-11

    IPC分类号: H04N7/32

    摘要: A video coder performs a padding operation that processes a set of border pixels according to an order. The order starts at a bottom-left border pixel and proceeds through the border pixels sequentially to a top-right border pixel. When the padding operation processes an unavailable border pixel, the padding operation predicts a value of the unavailable border pixel based on a value of a border pixel previously processed by the padding operation. The video coder may generate an intra-predicted video block based on the border pixels.

    摘要翻译: 视频编码器根据顺序执行处理一组边框像素的填充操作。 该顺序从左下角的边框像素开始,并且顺序通过边框像素顺序到右上边框像素。 当填补操作处理不可用边界像素时,填充操作基于先前由填充操作处理的边界像素的值来预测不可用边框像素的值。 视频编码器可以基于边界像素生成帧内预测视频块。

    TRANSFORMS IN VIDEO CODING
    32.
    发明申请
    TRANSFORMS IN VIDEO CODING 有权
    视频编码中的变换

    公开(公告)号:US20120230421A1

    公开(公告)日:2012-09-13

    申请号:US13414232

    申请日:2012-03-07

    IPC分类号: H04N7/30

    摘要: Aspects of this disclosure relate to a method of coding video data. In an example, the method includes determining a first residual quadtree (RQT) depth at which to apply a first transform to luma information associated with a block of video data, wherein the RQT represents a manner in which transforms are applied to luma information and chroma information. The method also includes determining a second RQT depth at which to apply a second transform to the chroma information associated with the block of video data, wherein the second RQT depth is different than the first RQT depth. The method also includes coding the luma information at the first RQT depth and the chroma information at the second RQT depth.

    摘要翻译: 本公开的方面涉及对视频数据进行编码的方法。 在一个示例中,该方法包括确定将第一变换应用于与视频数据块相关联的亮度信息的第一残余四叉树(RQT)深度,其中RQT表示将变换应用于亮度信息和色度的方式 信息。 该方法还包括确定将第二变换应用于与视频数据块相关联的色度信息的第二RQT深度,其中第二RQT深度不同于第一RQT深度。 该方法还包括以第一RQT深度编码亮度信息和在第二RQT深度对色度信息进行编码。

    CODEWORD ADAPTATION FOR VARIABLE LENGTH CODING
    33.
    发明申请
    CODEWORD ADAPTATION FOR VARIABLE LENGTH CODING 审中-公开
    可变长度编码的编码器适配

    公开(公告)号:US20120147971A1

    公开(公告)日:2012-06-14

    申请号:US13228853

    申请日:2011-09-09

    IPC分类号: H04N7/26 H03M7/40

    CPC分类号: H03M7/40 H03M7/42 H04N19/91

    摘要: In one example, this disclosure describes a method of codeword adaptation for variable length coding. The method comprises applying a first codeword adaptation scheme to a first group of codewords of a variable length coding (VLC) table to change a mapping of codewords to events in the VLC table; and applying a second codeword adaptation scheme to a second group of codewords of the VLC table to change the mapping of the codewords to the events in the VLC table.

    摘要翻译: 在一个示例中,本公开描述了用于可变长度编码的码字适配的方法。 该方法包括将第一码字适配方案应用于可变长度编码(VLC)表的第一组码字,以改变码字到VLC表中的事件的映射; 以及将第二码字适配方案应用于所述VLC表的第二组码字,以将所述码字的映射改变为所述VLC表中的事件。

    VARIABLE LENGTH CODING OF VIDEO BLOCK COEFFICIENTS
    34.
    发明申请
    VARIABLE LENGTH CODING OF VIDEO BLOCK COEFFICIENTS 审中-公开
    视频块系数的可变长度编码

    公开(公告)号:US20120082230A1

    公开(公告)日:2012-04-05

    申请号:US13218206

    申请日:2011-08-25

    IPC分类号: H04N7/30 H04N7/26

    摘要: This disclosure describes techniques for coding transform coefficients for a block of video data. According to one aspect of this disclosure, a coder (e.g., an encoder or decoder) may map between a code number cn and a level_ID value and an run value based on a structured mapping. According to other aspects of this disclosure, the coder may map between a code number cn and a level_ID value and an run value for the current transform coefficient using a first technique or a second technique based on a coded block type of a block of video data being coded. For example, if the coded block type is a first coded block type, the coder may use a structured mapping. However, if the coded block type is a second coded block type different than the first coded block type, the coder may access one or more mapping tables stored in memory to perform the mapping.

    摘要翻译: 本公开描述了用于编码视频数据块的变换系数的技术。 根据本公开的一个方面,编码器(例如,编码器或解码器)可以在代码号cn和level_ID值之间映射,并且基于结构化映射来映射运行值。 根据本公开的其他方面,编码器可以使用基于视频数据块的编码块类型的第一技术或第二技术在码号cn和level_ID值和当前变换系数的游程值之间进行映射 被编码。 例如,如果编码块类型是第一编码块类型,则编码器可以使用结构化映射。 然而,如果编码块类型是不同于第一编码块类型的第二编码块类型,则编码器可以访问存储在存储器中的一个或多个映射表以执行映射。

    VARIABLE LENGTH CODING OF CODED BLOCK PATTERN (CBP) IN VIDEO COMPRESSION
    35.
    发明申请
    VARIABLE LENGTH CODING OF CODED BLOCK PATTERN (CBP) IN VIDEO COMPRESSION 审中-公开
    编码块图案(CBP)在视频压缩中的可变长度编码

    公开(公告)号:US20110249754A1

    公开(公告)日:2011-10-13

    申请号:US13084473

    申请日:2011-04-11

    IPC分类号: H04N7/30

    摘要: In one example, this disclosure describes method of coding video data. The method comprises coding a block of video data as one or more luminance blocks of transform coefficients and one or more chrominance blocks of transform coefficients, and coding a coded block pattern (CBP) for the block of video data. The CBP comprises syntax information that identifies whether non-zero data is included in each of the luminance blocks and each of the chrominance blocks. Coding the CBP includes selecting one or more variable length coding (VLC) tables based on a transform size used in performing one or more transforms on the one or more luminance blocks.

    摘要翻译: 在一个示例中,本公开描述了对视频数据进行编码的方法。 该方法包括将视频数据块编码为变换系数的一个或多个亮度块和变换系数的一个或多个色度块,以及对视频数据块的编码块模式(CBP)进行编码。 CBP包括用于识别非零数据是否包括在每个亮度块和每个色度块中的语法信息。 编码CBP包括基于在一个或多个亮度块上执行一个或多个变换所使用的变换大小来选择一个或多个可变长度编码(VLC)表。

    VARIABLE LENGTH CODES FOR CODING OF VIDEO DATA
    36.
    发明申请
    VARIABLE LENGTH CODES FOR CODING OF VIDEO DATA 有权
    用于编码视频数据的可变长度代码

    公开(公告)号:US20110248873A1

    公开(公告)日:2011-10-13

    申请号:US12979751

    申请日:2010-12-28

    IPC分类号: H03M7/40

    摘要: A method and system for entropy coding can comprise, in response to detecting a first symbol combination comprising first run information indicating a first number of contiguous zero coefficients is greater than a cut-off-run value, assigning a first codeword to a first symbol combination, wherein the first codeword comprises an escape code from a first-level VLC table; and in response to a second symbol combination comprising second run information indicating a second number of contiguous zero coefficients is less than or equal to the cut-off-run value, assigning a second codeword to the second symbol combination, wherein the second codeword is from the first-level VLC table. The system and method can further comprise collecting coding statistics for a set of candidate symbol combinations and adjusting a mapping between codewords of the first-level VLC table and a subset of the set of candidate symbol combinations based on the coding statistics.

    摘要翻译: 用于熵编码的方法和系统可以包括响应于检测到第一符号组合,其包括指示第一数目的连续零系数的第一运行信息大于截止运行值,将第一代码字分配给第一符号组合 ,其中所述第一码字包括来自第一级VLC表的转义码; 并且响应于包括指示第二数目的连续零系数的第二运行信息的第二符号组合小于或等于所述截止运行值,将第二码字分配给所述第二符号组合,其中所述第二码字来自 一级VLC表。 该系统和方法还可以包括:针对一组候选符号组合收集编码统计信息,并且基于编码统计调整第一级VLC表的码字与候选符号组合集合的子集之间的映射。

    SMOOTHING OVERLAPPED REGIONS RESULTING FROM GEOMETRIC MOTION PARTITIONING
    37.
    发明申请
    SMOOTHING OVERLAPPED REGIONS RESULTING FROM GEOMETRIC MOTION PARTITIONING 有权
    根据几何运动分类得出的平滑覆盖区域

    公开(公告)号:US20110200110A1

    公开(公告)日:2011-08-18

    申请号:US13013687

    申请日:2011-01-25

    IPC分类号: H04N7/32

    摘要: In one example, an apparatus includes a video encoder configured to partition a block of video data into a first partition and a second partition using a geometric motion partition line, calculate a prediction value of a pixel in a transition region of the block using a filter that applies a value for at least one neighboring pixel from the first partition and a value for at least one neighboring pixel from the second partition, calculate a residual value of the pixel in the transition region of the block based on the prediction value of the pixel in the transition region, and output the residual value of the pixel. In one example, a video decoder may use a similar filter to decode an the encoded block after receiving the residual value for the encoded block, and using a definition of the geometric motion partition line.

    摘要翻译: 在一个示例中,一种装置包括视频编码器,其被配置为使用几何运动分割线将视频数据块分割成第一分区和第二分区,使用滤波器计算块的过渡区域中的像素的预测值 其对来自第一分区的至少一个相邻像素应用值,并且从第二分区施加至少一个相邻像素的值,基于像素的预测值计算块的过渡区域中的像素的残留值 并且输出像素的残留值。 在一个示例中,视频解码器可以在接收到编码块的残余值之后使用类似的滤波器对编码块进行解码,并且使用几何运动分割线的定义。

    FGS identification in scalable video coding
    38.
    发明授权
    FGS identification in scalable video coding 失效
    可扩展视频编码中的FGS识别

    公开(公告)号:US07756206B2

    公开(公告)日:2010-07-13

    申请号:US11105312

    申请日:2005-04-13

    IPC分类号: H04N7/12

    摘要: A system and method for providing improved FGS identification in scalable video coding. According to the present invention, each FGS enhancement layer is assigned a unique dependency identifier and contains only FGS enhancement information. For subsequent enhancement layers, the base dependency identifier for the subsequent enhancement layers will point to either a base-quality layer or an FGS enhancement layer.

    摘要翻译: 一种用于在可缩放视频编码中提供改进的FGS识别的系统和方法。 根据本发明,每个FGS增强层被分配唯一的相关性标识符,并且仅包含FGS增强信息。 对于随后的增强层,后续增强层的基本依赖性标识符将指向基本质量层或FGS增强层。

    END-OF-BLOCK MARKERS SPANNING MULTIPLE BLOCKS FOR USE IN VIDEO CODING
    39.
    发明申请
    END-OF-BLOCK MARKERS SPANNING MULTIPLE BLOCKS FOR USE IN VIDEO CODING 审中-公开
    最终块标记在视频编码中使用多个块

    公开(公告)号:US20070283132A1

    公开(公告)日:2007-12-06

    申请号:US11696662

    申请日:2007-04-04

    IPC分类号: G06F9/30

    摘要: The present invention involves the use of the FRExt approach for FGS. According to the present invention, an 8×8 data block is de-interleaved and processed as individual 4×4 data blocks, with an additional end-of-8×8-block (EO8B) marker indicating that no more coefficients remain in any of the de-interleaved 4×4 data blocks. The EO8B symbol may be a binary flag. The invention also uses a longer codeword for the EO8B symbol, conveying information about which de-interleaved blocks contain additional coefficients.

    摘要翻译: 本发明涉及使用FRExt方法进行FGS。 根据本发明,将8×8数据块作为单独的4×4数据块进行解交织和处理,附加的8×8块(EO8B)标记指示在任何解交织的4×4中不再有系数 数据块。 EO8B符号可以是二进制标志。 本发明还使用用于EO8B符号的更长的码字,传达关于哪些去交织的块包含附加系数的信息。

    Residual prediction mode in scalable video coding
    40.
    发明申请
    Residual prediction mode in scalable video coding 审中-公开
    可扩展视频编码中的残留预测模式

    公开(公告)号:US20070014349A1

    公开(公告)日:2007-01-18

    申请号:US11446018

    申请日:2006-06-02

    IPC分类号: H04B1/66 H04N11/04 H04N11/02

    摘要: Methods, devices, and computer code products for encoding and decoding a video signal including conditional encoding and decoding of a residual prediction flag for an enhancement layer only of all base layers are discrete layers. If some base layers are not discrete, the residual prediction flag is always encoded and decoded. Encoding and decoding the residual prediction flag can include using contexts which depend on whether the reconstructed prediction residual of the discrete base layers is zero or not.

    摘要翻译: 用于对视频信号进行编码和解码的方法,设备和计算机代码产品,包括仅针对所有基础层的增强层的残留预测标志的条件编码和解码是离散层。 如果一些基本层不是离散的,则残留预测标志总是被编码和解码。 编码和解码残留预测标志可以包括使用取决于离散基础层的重建预测残差是否为零的上下文。