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    Method of deriving quantization parameter with differential and predicted quantization parameters
    41.
    发明授权
    Method of deriving quantization parameter with differential and predicted quantization parameters 有权
    用差分和预测量化参数推导量化参数的方法

    公开(公告)号：US09204151B2

    公开(公告)日：2015-12-01

    申请号：US14592809

    申请日：2015-01-08

    申请人： INFOBRIDGE PTE. LTD.

    发明人： Soo Mi Oh ,  Moonock Yang

    IPC分类号： H04N7/12 ,  H04N19/126 ,  H04N19/124 ,  H04N19/176 ,  H04N19/70 ,  H04N19/61 ,  H04N19/463 ,  H04N19/136 ,  H04N19/105 ,  H04N19/593

    CPC分类号： H04N19/126 ,  H04N19/105 ,  H04N19/11 ,  H04N19/124 ,  H04N19/136 ,  H04N19/157 ,  H04N19/176 ,  H04N19/463 ,  H04N19/593 ,  H04N19/61 ,  H04N19/70

    摘要： Provided is a method that restores a differential quantization parameter of a current coding unit, generates a quantization parameter predictor of the current coding unit using one or two quantization parameters of a left quantization parameter, an above quantization parameter and a previous quantization parameter and generates a quantization parameter of the current coding unit using the differential quantization parameter and the quantization parameter predictor, wherein a minimum size of quantization unit is adjusted per picture. Therefore, the complexity of the encoding and decoding apparatus is reduced by adjusting the minimum size of the quantization unit. Also, coding efficiency is improved by encoding the quantization parameter using neighboring quantization parameters and by signaling the minimum size of the quantization unit per picture.

    摘要翻译： 提供了一种恢复当前编码单元的差分量化参数的方法，使用左量化参数，上述量化参数和先前量化参数的一个或两个量化参数来生成当前编码单元的量化参数预测器，并产生 使用差分量化参数的当前编码单元的量化参数和量化参数预测器，其中每个图像调整量化单元的最小大小。 因此，通过调整量化单元的最小尺寸来减少编码和解码装置的复杂度。 此外，通过使用相邻量化参数对量化参数进行编码并且通过发信号通知每个图像的量化单元的最小尺寸来提高编码效率。

    Method of constructing merge list
    44.
    发明授权
    Method of constructing merge list 有权
    构建合并列表的方法

    公开(公告)号：US08917772B2

    公开(公告)日：2014-12-23

    申请号：US14350013

    申请日：2012-11-07

    申请人： Infobridge Pte. Ltd.

    发明人： Soo Mi Oh ,  Moonock Yang

    IPC分类号： H04N19/583 ,  H04N19/196 ,  H04N19/463 ,  H04N19/51 ,  H04N19/126 ,  H04N19/176 ,  H04N19/593 ,  H04N19/503

    CPC分类号： H04N19/139 ,  H04N19/124 ,  H04N19/126 ,  H04N19/174 ,  H04N19/176 ,  H04N19/196 ,  H04N19/198 ,  H04N19/463 ,  H04N19/503 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/593

    摘要： Provided is a method checks availability of spatial merge candidates and a temporal merge candidate, constructs a merge candidate list using available spatial and temporal merge candidates, and adds one or more candidates if the number of available spatial and temporal merge candidates is smaller than a predetermined number. The spatial merge candidate is motion information of a spatial merge candidate block, the spatial merge candidate block is a left block, an above block, an above-right block, a left-below block or an above-left block of the current block, and if the current block is a second prediction unit partitioned by asymmetric partitioning, the spatial merge candidate corresponding to a first prediction unit partitioned by the asymmetric partitioning is set as unavailable. Therefore, the coding efficiency of motion information is improved by removing unavailable merge candidates and adding new merge candidates from the merge list.

    摘要翻译： 提供一种检查空间合并候选和时间合并候选的可用性的方法，使用可用的空间和时间合并候选构建合并候选列表，并且如果可用空间和时间合并候选的数量小于预定的时间合并候选，则添加一个或多个候选 数。 空间合并候选是空间合并候选块的运动信息，空间合并候选块是当前块的左块，上块，右上块，左下块或左上块， 并且如果当前块是由非对称划分划分的第二预测单元，则与由非对称分区划分的第一预测单元相对应的空间合并候选被设置为不可用。 因此，通过从合并列表中移除不可用的合并候选和添加新的合并候选来提高运动信息的编码效率。

    METHOD FOR DECODING CHROMA IMAGE
    45.
    发明申请
    METHOD FOR DECODING CHROMA IMAGE 有权
    解码色彩图像的方法

    公开(公告)号：US20140254677A1

    公开(公告)日：2014-09-11

    申请号：US14354518

    申请日：2012-11-09

    申请人： INFOBRIDGE PTE. LTD

    发明人： Soo Mi Oh ,  Moonock Yang

    IPC分类号： H04N19/124 ,  H04N19/186 ,  H04N19/159

    CPC分类号： H04N19/186 ,  H04N19/105 ,  H04N19/11 ,  H04N19/124 ,  H04N19/13 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/182 ,  H04N19/196 ,  H04N19/50 ,  H04N19/593 ,  H04N19/61

    摘要： Provided is a method that derives a chroma intra prediction mode of a prediction unit, determines a size of a current chroma block using luma transform size information, generates a chroma prediction block of the current chroma block using the chroma intra prediction mode, generates a chroma residual block of the current chroma block using the chroma intra prediction mode and a chroma quantization parameter, generates a chroma reconstructed block adding the chroma prediction block and the chroma residual block, and the chroma quantization parameter is generated using a luma quantization parameter and information indicating the relationship between the luma quantization parameter and the chroma quantization parameter. Therefore, the coding efficiency is improved by adjusting the chroma quantization parameter per picture. Also, the amount of bits for transmitting the luma and chroma quantization parameters is reduced by encoding the luma quantization parameter using neighboring luma quantization parameters.

    摘要翻译： 提供一种导出预测单元的色度帧内预测模式的方法，使用亮度变换大小信息确定当前色度块的大小，使用色度帧内预测模式生成当前色度块的色度预测块，生成色度 使用色度帧内预测模式的当前色度块的残差块和色度量化参数，生成添加色度预测块和色度残差块的色度重构块，并使用亮度量化参数和指示 亮度量化参数和色度量化参数之间的关系。 因此，通过调整每个图像的色度量化参数来提高编码效率。 此外，通过使用相邻亮度量化参数对亮度量化参数进行编码来减少用于发送亮度和色度量化参数的位数量。

    Method for generating intra prediction block with most probable mode
    46.
    发明授权
    Method for generating intra prediction block with most probable mode 有权

    公开(公告)号：US11290719B2

    公开(公告)日：2022-03-29

    申请号：US16926206

    申请日：2020-07-10

    申请人： INFOBRIDGE PTE. LTD.

    发明人： Soo Mi Oh ,  Moonock Yang

    IPC分类号： H04N7/18 ,  H04N19/126 ,  H04N19/593 ,  H04N19/176 ,  H04N19/463 ,  H04N19/11 ,  H04N19/157 ,  H04N19/70 ,  H04N19/61 ,  H04N19/124 ,  H04N19/136 ,  H04N19/105

    摘要： A method for generating a prediction block in intra prediction, includes restoring a mode group indicator and a prediction mode index; constructing a most probable mode (MPM) group including three intra prediction modes of a current block; determining an intra prediction mode specified by the intra prediction mode index in the MPM group as the intra prediction mode of the current block if the mode group indicator indicates the MPM group, and deriving the intra prediction mode of the current block using the prediction mode index and the three intra prediction modes of the MPM group if the mode group indicator does not indicate the MPM group; determining a size of the prediction block based on transform size information; determining whether all reference pixels of the current block are available; generating reference pixels if one or more reference pixels of the current block are unavailable; adaptively filtering the reference pixels based on the intra prediction mode and the size of the current block; and generating the prediction block using the reference pixels based on the restored intra prediction mode.

    Method and apparatus of decoding video data
    48.
    发明授权
    Method and apparatus of decoding video data 有权

    公开(公告)号：US10778970B2

    公开(公告)日：2020-09-15

    申请号：US16242886

    申请日：2019-01-08

    申请人： INFOBRIDGE PTE. LTD.

    发明人： Soo Mi Oh ,  Moonock Yang

    IPC分类号： H04N19/109 ,  H04N19/159 ,  H04N19/52 ,  H04N19/176 ,  H04N19/124 ,  H04N19/463

    摘要： A method of decoding video data using quantized coefficient components and inter prediction information can include extracting quantized coefficient components and inter prediction information from a received bit stream; applying an inverse scan pattern to the quantized coefficient components to generate a quantized block having a size of a transform unit; generating a quantization parameter per quantization unit which is a unit for deriving a quantization parameter and inverse-quantizing the quantized block to generate a transformed block; generating a residual block by inverse-transforming the transformed block; deriving motion information and generating a prediction block; and generating a reconstructed block by using the residual block and the prediction block.

    Apparatus of encoding an image
    49.
    发明授权
    Apparatus of encoding an image 有权

    公开(公告)号：US10205947B2

    公开(公告)日：2019-02-12

    申请号：US15449580

    申请日：2017-03-03

    申请人： INFOBRIDGE PTE. LTD.

    发明人： Soo Mi Oh ,  Moonock Yang

    IPC分类号： H04N19/124 ,  H04N19/196 ,  H04N19/159 ,  H04N19/119 ,  H04N19/13 ,  H04N19/63 ,  H04N19/129 ,  H04N19/61 ,  H04N19/593 ,  H04N19/463 ,  H04N19/157 ,  H04N19/18 ,  H04N19/11 ,  H04N19/122 ,  H04N19/176

    摘要： An apparatus of encoding an image can include an intra prediction unit that determines an intra prediction mode of a current prediction unit and generates one or more prediction blocks using the intra prediction mode, an inter prediction unit that determines motion information and generates a prediction block using the motion information, a transform unit that transforms residual signals generated using an original block and the prediction block to generate a transformed block, a quantization unit that determines a quantization parameter and quantizes the transformed block using a quantization matrix and the quantization parameter to generate a quantized block, a scanning unit that determines a scan pattern and applies the scan pattern to the quantized block to generate one-dimensional coefficient information, and an entropy coding unit the entropy-codes one-dimensional coefficient information from the scanning unit, intra prediction information from the intra prediction unit, and motion information from the inter prediction unit.

    Method of deriving motion information
    50.
    发明授权
    Method of deriving motion information 有权

    公开(公告)号：US10116939B2

    公开(公告)日：2018-10-30

    申请号：US15912050

    申请日：2018-03-05

    申请人： INFOBRIDGE PTE. LTD.

    发明人： Soo Mi Oh ,  Moonock Yang

    IPC分类号： H04N19/124 ,  H04N19/109 ,  H04N19/119 ,  H04N19/176 ,  H04N19/52 ,  H04N19/91 ,  H04N19/503 ,  H04N19/159 ,  H04N19/513 ,  H04N19/593 ,  H04N19/463 ,  H04N19/196 ,  H04N19/13 ,  H04N19/129 ,  H04N19/61 ,  H04N19/139 ,  H04N19/137 ,  H04N19/86 ,  H04N19/51 ,  H04N19/105

    摘要： A method of encoding video data in a merge mode can include determining motion information of a current block; generating a prediction block of the current block using the motion information; generating a residual block using the current block and the prediction block; transforming the residual block to generate a transformed block; quantizing the transformed block using a quantization parameter and a quantization matrix to generate a quantized block; scanning coefficient components of the quantized block using a diagonal scan; entropy-coding the scanned coefficient components of the quantized block; and encoding the motion information, in which when the current block is a second prediction unit partitioned by asymmetric partitioning, the spatial merge candidate corresponding to a first prediction unit partitioned by the asymmetric partitioning is not to be listed on the merge list, the quantization parameter is determined per a quantization unit and is encoded using a quantization parameter predictor, and a minimum size of the quantization unit is adjusted by a picture parameter set.