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    Method of decoding motion vector
    1.
    发明授权
    Method of decoding motion vector 有权

    公开(公告)号：US10757405B2

    公开(公告)日：2020-08-25

    申请号：US16046623

    申请日：2018-07-26

    申请人： INFOBRIDGE PTE. LTD.

    发明人： Soo Mi Oh ,  Moonock Yang

    IPC分类号： H04N19/109 ,  H04N19/126 ,  H04N19/159 ,  H04N19/463 ,  H04N19/124 ,  H04N19/52 ,  H04N19/176 ,  H04N19/46

    摘要： An apparatus of encoding an image in an advanced motion vector prediction (AMVP) mode can include an inter prediction module for determining motion information of a current block, and generating a prediction block of the current block using the motion information; a transform module for transforming the residual block to generate a transformed block; a quantization module for quantizing the transformed block using a quantization parameter and a quantization matrix to generate a quantized block; a scanning module for scanning quantized coefficient components of the quantized block; and an entropy coding module for entropy-coding the scanned quantized coefficient components of the quantized block; in which the motion information is encoded by performing the sub-steps of: constructing an AMVP list using available motion vector candidates of a left motion vector candidate, an above motion vector candidate and a temporal motion vector candidate; selecting a motion vector predictor among motion vector candidates of the AMVP candidate list; generating a differential motion vector by subtracting the motion vector predictor from the motion vector; and encoding a reference picture index, the differential motion vector and an AMVP index specifying the motion vector predictor.

    Method of constructing merge list
    3.
    发明授权
    Method of constructing merge list 有权

    公开(公告)号：US10362312B2

    公开(公告)日：2019-07-23

    申请号：US15879125

    申请日：2018-01-24

    申请人： INFOBRIDGE PTE. LTD.

    发明人： Soo Mi Oh ,  Moonock Yang

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

    摘要： An image encoding apparatus can include an inter prediction module for determining motion information of a current block, and generating a prediction block of the current block using the motion information; a transform module for transforming the residual block to generate a transformed block; a quantization module for quantizing the transformed block using a quantization parameter and a quantization matrix to generate a quantized block; a scanning module for scanning coefficient components of the quantized block using a diagonal scan; and an entropy coding module for entropy-coding the scanned coefficient components of the quantized block; in which the motion information is encoded by performing the sub-steps of: constructing a merge list using available spatial and temporal merge candidates; selecting a merge predictor among merge candidates of the merge list; and encoding a merge index specifying the merge predictor, in which 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.

    Method for decoding chroma image using luma quantization
    4.
    发明授权
    Method for decoding chroma image using luma quantization 有权

    公开(公告)号：US10334257B2

    公开(公告)日：2019-06-25

    申请号：US15884062

    申请日：2018-01-30

    申请人： INFOBRIDGE PTE. LTD.

    发明人： Soo Mi Oh ,  Moonock Yang

    IPC分类号： H04N7/18 ,  H04N19/186 ,  H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/11 ,  H04N19/124 ,  H04N19/182 ,  H04N19/593 ,  H04N19/50 ,  H04N19/196 ,  H04N19/13 ,  H04N19/172 ,  H04N19/61

    摘要： A method for decoding chroma image can include deriving a chroma intra prediction mode of a prediction unit; determining a size of a current chroma block using luma transform size information; generating a chroma prediction block of the current chroma block using the chroma intra prediction mode; generating a chroma residual block of the current chroma block using the chroma intra prediction mode and a chroma quantization parameter; and generating a chroma reconstructed block adding the chroma prediction block and the chroma residual block, in which the chroma quantization parameter is generated using a luma quantization parameter determined per quantization unit and information indicating the relationship between the luma quantization parameter and the chroma quantization parameter, the size of the quantization unit is one of allowable sizes of a coding unit, and a minimum size of the quantization unit is determined per picture and a parameter for specifying the minimum size of the quantization unit is included in a picture parameter set.

    Apparatus of decoding video data
    9.
    发明授权
    Apparatus of decoding video data 有权
    解码视频数据的装置

    公开(公告)号：US09374582B2

    公开(公告)日：2016-06-21

    申请号：US14349992

    申请日：2012-11-02

    申请人： INFOBRIDGE PTE. LTD.

    发明人： Soo Mi Oh ,  Moonock Yang

    IPC分类号： H04N7/12 ,  G06K9/46 ,  H04N19/82 ,  H04N19/159 ,  H04N19/176 ,  H04N19/122 ,  H04N19/129 ,  H04N19/593 ,  H04N19/11 ,  H04N19/117 ,  H04N19/463 ,  H04N19/124 ,  H04N19/186 ,  H04N19/157 ,  H04N19/119

    CPC分类号： H04N19/124 ,  H04N19/11 ,  H04N19/117 ,  H04N19/119 ,  H04N19/122 ,  H04N19/129 ,  H04N19/13 ,  H04N19/157 ,  H04N19/159 ,  H04N19/172 ,  H04N19/176 ,  H04N19/186 ,  H04N19/463 ,  H04N19/593 ,  H04N19/82

    摘要： Provided is an apparatus that derives a luma intra prediction mode and a chroma intra prediction mode, determines a size of a luma transform unit and a size of a chroma transform unit using luma transform size information, adaptively filters the reference pixels of a current luma block based on the luma intra prediction mode and the size of the luma transform unit, generates prediction blocks of the current luma block and the current chroma block and generates a residual luma residual block and a chroma residual block. Therefore, the distance of intra prediction becomes short, and the amount of coding bits required to encode intra prediction modes and residual blocks of luma and chroma components is reduced and the coding complexity is reduced by adaptively encoding the intra prediction modes and adaptively filtering the reference pixels.

    摘要翻译： 提供一种导出亮度帧内预测模式和色度帧内预测模式的装置，使用亮度变换大小信息确定亮度变换单元的大小和色度变换单元的大小，自适应地过滤当前亮度块的参考像素 基于亮度帧内预测模式和亮度变换单元的大小，生成当前亮度块和当前色度块的预测块，并生成残余亮度残差块和色度残差块。 因此，帧内预测的距离变短，并且编码帧内预测模式和亮度和色度分量的残余块所需的编码比特数量减少，并且通过对帧内预测模式进行自适应编码并自适应地过滤参考来降低编码复杂度 像素。

    Method of deriving motion information
    10.
    发明授权
    Method of deriving motion information 有权
    导出运动信息的方法

    公开(公告)号：US09288493B2

    公开(公告)日：2016-03-15

    申请号：US14350015

    申请日：2012-11-07

    申请人： INFOBRIDGE PTE. LTD.

    发明人： Soo Mi Oh ,  Moonock Yang

    IPC分类号： H04N19/52 ,  H04N19/593 ,  H04N19/51 ,  H04N19/503 ,  H04N19/159 ,  H04N19/176 ,  H04N19/119 ,  H04N19/513 ,  H04N19/463 ,  H04N19/124 ,  H04N19/196 ,  H04N19/61

    CPC分类号： H04N19/124 ,  H04N19/109 ,  H04N19/119 ,  H04N19/129 ,  H04N19/13 ,  H04N19/137 ,  H04N19/139 ,  H04N19/159 ,  H04N19/176 ,  H04N19/198 ,  H04N19/463 ,  H04N19/503 ,  H04N19/513 ,  H04N19/52 ,  H04N19/593 ,  H04N19/61 ,  H04N19/86 ,  H04N19/91

    摘要： Provided is a method extracts a merge index from a bit stream, constructs a merge candidate list using available spatial and temporal merge candidates, selects a merge predictor among merge candidates using the merge index, and sets motion information of the merge predictor as motion information of the current prediction unit. The temporal merge candidate includes a reference picture index and a motion vector, and a motion vector of a temporal merge candidate block of a temporal merge candidate picture is set as the motion vector of the temporal merge candidate. Accordingly, the coding efficiency of the motion information is improved by including various merge candidates. Also, the computational complexity of an encoder and a decoder is reduced maintaining improvement of coding efficiency by adaptively storing motion information of reference picture and adaptively generating a temporal merge candidate.

    摘要翻译： 提供一种从比特流中提取合并索引的方法，使用可用的空间和时间合并候选构建合并候选列表，使用合并索引在合并候选中选择合并预测变量，并将合并预测变量的运动信息设置为 当前预测单元。 时间合并候选包括参考图像索引和运动矢量，将时间合并候选图像的时间合并候选块的运动矢量设置为时间合并候选的运动矢量。 因此，通过包括各种合并候选来提高运动信息的编码效率。 此外，通过自适应地存储参考图像的运动信息并自适应地生成时间合并候选，减少编码器和解码器的计算复杂度，从而保持编码效率的提高。