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    32-POINT TRANSFORM FOR MEDIA DATA CODING
    5.
    发明申请
    32-POINT TRANSFORM FOR MEDIA DATA CODING 有权
    用于媒体数据编码的32点变换

    公开(公告)号：US20120177108A1

    公开(公告)日：2012-07-12

    申请号：US13346632

    申请日：2012-01-09

    申请人： Rajan Laxman Joshi ,  Yuriy Reznik ,  Joel Sole Rojals ,  Marta Karczewicz

    发明人： Rajan Laxman Joshi ,  Yuriy Reznik ,  Joel Sole Rojals ,  Marta Karczewicz

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

    CPC分类号： G06F17/147 ,  H04N19/625

    摘要： In general, techniques are described for implementing a 32-point discrete cosine transform (DCT) that is capable of applying multiple DCTs of different sizes. For example, an apparatus comprising a 32-point discrete cosine transform of type II (DCT-II) unit may implement the techniques of this disclosure. The 32-point DCT-II unit performs these DCTs-II of different sizes to transform data from a spatial to a frequency domain. The 32-point DCT-II unit includes an 16-point DCT-II unit that performs one of the DCTs-II of size 16 and at least one 8-point DCT-II unit that performs one of the DCTs-II of size 8. The 16-point DCT-II unit includes another 8-point DCT-II unit. The 16-point DCT-II unit also comprises at least one 4-point DCTs-II unit. Two or more of these DCTs-II units may concurrently perform DCTs-II of different sizes to various portions of the content data.

    摘要翻译： 通常，描述了用于实现能够应用不同尺寸的多个DCT的32点离散余弦变换（DCT）的技术。 例如，包括II型（DCT-II）单元的32点离散余弦变换的装置可以实现本公开的技术。 32点DCT-II单元执行不同尺寸的DCT-II，以将数据从空间转换到频域。 32点DCT-II单元包括执行尺寸为16的DCT-II之一的16点DCT-II单元和执行尺寸为8的DCT-II之一的至少一个8点DCT-II单元 16点DCT-II单元包括另外8点DCT-II单元。 16点DCT-II单元还包括至少一个4点DCT-II单元。 这些DCT-II单元中的两个或更多个可以对内容数据的各个部分同时执行不同大小的DCT-II。

    Context-adaptive coding video data
    6.
    发明授权
    Context-adaptive coding video data 有权
    上下文自适应编码视频数据

    公开(公告)号：US09379736B2

    公开(公告)日：2016-06-28

    申请号：US13485225

    申请日：2012-05-31

    申请人： Joel Sole Rojals ,  Rajan Laxman Joshi ,  Marta Karczewicz

    发明人： Joel Sole Rojals ,  Rajan Laxman Joshi ,  Marta Karczewicz

    IPC分类号： H04N7/12 ,  H03M7/00 ,  H03M7/30 ,  H03M7/40 ,  H04N19/196 ,  H04N19/13 ,  H04N19/463 ,  H04N19/436

    CPC分类号： H03M7/6023 ,  H03M7/4018 ,  H03M7/6011 ,  H04N19/13 ,  H04N19/196 ,  H04N19/436 ,  H04N19/463

    摘要： In an example, aspects of this disclosure relate to a method of coding data that includes coding a sequence of bins according to a context adaptive entropy coding process. A current coding cycle used to code at least one bin of the sequence of bins includes determining a context for the bin; selecting a probability model based on the context, wherein the probability model is updated based on a value of a previous bin coded with the context and coded at least two coding cycles prior to the current coding cycle; applying the probability model to code the bin; and updating the probability model based on a value of the bin.

    摘要翻译： 在一个示例中，本公开的方面涉及一种编码数据的方法，所述数据包括根据上下文自适应熵编码处理来对码序列进行编码。 用于对码序列的至少一个bin进行编码的当前编码周期包括确定所述仓的上下文; 基于所述上下文选择概率模型，其中，所述概率模型基于用所述上下文编码的先前存储块的值进行更新，并且在当前编码周期之前编码至少两个编码周期; 应用概率模型对仓进行编码; 并且基于所述仓的值更新所述概率模型。

    Coding of transform coefficients for video coding
    7.
    发明授权
    Coding of transform coefficients for video coding 有权
    编码视频编码的变换系数

    公开(公告)号：US09106913B2

    公开(公告)日：2015-08-11

    申请号：US13565621

    申请日：2012-08-02

    申请人： Joel Sole Rojals ,  Rajan Laxman Joshi ,  Marta Karczewicz

    发明人： Joel Sole Rojals ,  Rajan Laxman Joshi ,  Marta Karczewicz

    IPC分类号： H04N19/18 ,  H04N19/00 ,  H04N19/13 ,  H04N19/129 ,  H04N19/61 ,  H04N19/60 ,  H04N19/91 ,  H04N19/157 ,  H04N19/184 ,  H04N19/436

    CPC分类号： H04N19/13 ,  H04N19/129 ,  H04N19/157 ,  H04N19/18 ,  H04N19/184 ,  H04N19/436 ,  H04N19/60 ,  H04N19/61 ,  H04N19/91

    摘要： In an example, a method includes coding significance information for transform coefficients in a set of transform coefficients associated with the residual video data according to a scan order in one or more first passes. The method also includes coding a first set of one or more bins of information for the transform coefficients according to the scan order in one or more second passes, where the first set of one or more bins are coded in a first mode of a coding process. The method also includes coding a second set of one or more bins of information for the transform coefficients according to the scan order in one or more third passes, where the second set of one or more bins are coded in a second mode of the coding process.

    摘要翻译： 在一个示例中，一种方法包括根据一个或多个第一遍中的扫描顺序对与残留视频数据相关联的一组变换系数中的变换系数进行编码有效信息。 该方法还包括在一个或多个第二遍中根据扫描顺序对用于变换系数的一个或多个信息的第一组信号进行编码，其中第一组一个或多个存储体以编码处理的第一模式被编码 。 该方法还包括在一个或多个第三遍中根据扫描顺序对用于变换系数的一个或多个信息的第二组信息进行编码，其中第二组一个或多个存储体以编码处理的第二模式被编码 。

    CONTEXTS FOR COEFFICIENT LEVEL CODING IN VIDEO COMPRESSION
    8.
    发明申请
    CONTEXTS FOR COEFFICIENT LEVEL CODING IN VIDEO COMPRESSION 审中-公开
    视频压缩中的系统级编码的内容

    公开(公告)号：US20130083856A1

    公开(公告)日：2013-04-04

    申请号：US13535975

    申请日：2012-06-28

    申请人： Joel Sole Rojals ,  Rajan Laxman Joshi ,  Marta Karczewicz

    发明人： Joel Sole Rojals ,  Rajan Laxman Joshi ,  Marta Karczewicz

    IPC分类号： H04N7/26

    CPC分类号： H04N19/91 ,  H04N19/61

    摘要： This disclosure describes techniques for coding video data. In particular, this disclosure describes techniques for entropy coding of residual transform coefficients generated by a video coding process. In one example, a method selects a bin 2 context for coding a bin 2 level of one or more transform coefficients in the vector according to the entropy coding process. The method further codes the bin 2 level of one or more transform coefficients in the vector according to the selected bin 2 context. Selecting the bin 2 context comprises selecting the bin 2 context for a current transform coefficient in the vector based on the bin 2 level of one or more previously coded transform coefficients in the vector.

    摘要翻译： 本公开描述了用于编码视频数据的技术。 特别地，本公开描述了由视频编码处理生成的残差变换系数的熵编码技术。 在一个示例中，方法根据熵编码处理选择用于编码向量中的一个或多个变换系数的bin 2级的bin 2上下文。 该方法还根据所选择的bin 2上下文对向量中的一个或多个变换系数的bin 2级进行编码。 选择bin 2上下文包括基于向量中的一个或多个先前编码的变换系数的bin 2级别来选择向量中的当前变换系数的bin 2上下文。

    USING A MOST PROBABLE SCANNING ORDER TO EFFICIENTLY CODE SCANNING ORDER INFORMATION FOR A VIDEO BLOCK IN VIDEO CODING
    9.
    发明申请
    USING A MOST PROBABLE SCANNING ORDER TO EFFICIENTLY CODE SCANNING ORDER INFORMATION FOR A VIDEO BLOCK IN VIDEO CODING 审中-公开
    使用最可能的扫描命令有效地为视频编码中的视频块进行扫描订单信息

    公开(公告)号：US20120163456A1

    公开(公告)日：2012-06-28

    申请号：US13332054

    申请日：2011-12-20

    申请人： Muhammed Zeyd Coban ,  Yunfei Zheng ,  Joel Sole Rojals ,  Marta Karczewicz

    发明人： Muhammed Zeyd Coban ,  Yunfei Zheng ,  Joel Sole Rojals ,  Marta Karczewicz

    IPC分类号： H04N7/32

    CPC分类号： H04N19/157 ,  H04N19/129 ,  H04N19/13 ,  H04N19/176 ,  H04N19/196 ,  H04N19/46 ,  H04N19/463 ,  H04N19/70

    摘要： In one example, an apparatus is disclosed for coding coefficients associated with a block of video data during a video coding process, the apparatus comprising a video coder configured to code information that identifies a scanning order associated with the block, wherein to code the information that identifies the scanning order associated with the block, the video coder is configured to determine a most probable scanning order for the block, and code an indication of whether the scanning order associated with the block is the most probable scanning order. In another example, to code the information that identifies the scanning order associated with the block, the video coder is further configured to, in the event the scanning order associated with the block is not the most probable scanning order, code an indication of the scanning order associated with the block.

    摘要翻译： 在一个示例中，公开了一种用于在视频编码过程期间对与视频数据块相关联的系数进行编码的装置，该装置包括视频编码器，该视频编码器被配置为对与块相关联的扫描顺序进行编码的信息，其中， 识别与块相关联的扫描顺序，视频编码器被配置为确定块的最可能的扫描顺序，并且编码与块相关联的扫描顺序是否是最可能的扫描顺序的指示。 在另一示例中，为了对识别与该块相关联的扫描顺序的信息进行编码，视频编码器还被配置为在与该块相关联的扫描顺序不是最可能的扫描顺序的情况下，编码扫描的指示 与块相关联的顺序。