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    Method and apparatus for encoding and decoding image by using large transformation unit
    21.
    发明授权
    Method and apparatus for encoding and decoding image by using large transformation unit 有权
    通过使用大变换单元对图像进行编码和解码的方法和装置

    公开(公告)号：US08971649B2

    公开(公告)日：2015-03-03

    申请号：US14299131

    申请日：2014-06-09

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Tammy Lee ,  Woo-jin Han ,  Jianle Chen ,  Hae-kyung Jung

    IPC: G06K9/36 ,  G06T9/00 ,  H04N19/119 ,  H04N19/122 ,  H04N19/176 ,  H04N19/61 ,  H04N19/107 ,  H04N19/70 ,  H04N19/96

    CPC classification number: H04N19/625 ,  G06T9/00 ,  H04N19/107 ,  H04N19/119 ,  H04N19/122 ,  H04N19/169 ,  H04N19/176 ,  H04N19/61 ,  H04N19/70 ,  H04N19/96

    Abstract: An image decoding method including determining coding units having a hierarchical structure for decoding an image using split information of a coding unit, determining at least one prediction unit for predicting a coding unit among the coding units using information about a partition type, determining at least one transformation unit for inversely transforming the coding unit using split information of the at least one transformation unit, wherein the split information of a coding unit, the information about a partition type and the information about a depth of the at least one transformation unit are parsed from a bitstream, parsing from the bitstream transformation coefficients generated by transformation according to the at least one transformation unit generated by dividing the coding unit, reconstructing residual of the at least one transformation unit by performing inverse quantization and inverse transformation on the parsed transformation coefficients, and performing intra prediction or inter prediction on the prediction unit to generate a predictor, and reconstructs the image based on the residual and the predictor.

    Abstract translation: 一种图像解码方法，包括确定具有用于使用编码单元的分割信息对图像进行解码的分层结构的编码单元，使用关于分区类型的信息确定用于在编码单元中预测编码单元的至少一个预测单元，确定至少一个 变换单元，用于使用所述至少一个变换单元的分割信息对所述编码单元进行逆变换，其中编码单元的分割信息，关于分割类型的信息和关于所述至少一个变换单元的深度的信息被从 比特流，根据通过对编码单元进行分割而生成的至少一个变换单元，通过变换生成的比特流变换系数进行解析，对解析变换系数进行逆量化和逆变换，对至少一个变换单位的残差进行重构;以及 执行内部预处理 对预测单元进行预测或帧间预测以生成预测器，并且基于残差和预测器来重建图像。

    METHOD AND APPARATUS FOR ENCODING AND DECODING IMAGE BY USING LARGE TRANSFORM UNIT
    23.
    发明申请
    METHOD AND APPARATUS FOR ENCODING AND DECODING IMAGE BY USING LARGE TRANSFORM UNIT 有权
    使用大型变换单元编码和解码图像的方法和装置

    公开(公告)号：US20140286419A1

    公开(公告)日：2014-09-25

    申请号：US14300352

    申请日：2014-06-10

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Min-su Cheon ,  Woo-jin Han ,  Hae-kyung Jung ,  II-koo Kim ,  Tammy Lee ,  Jianle Chen

    IPC: H04N19/503 ,  H04N19/44 ,  H04N19/61 ,  H04N19/593

    CPC classification number: H04N19/122 ,  G06T9/00 ,  H04N19/107 ,  H04N19/119 ,  H04N19/124 ,  H04N19/13 ,  H04N19/147 ,  H04N19/159 ,  H04N19/176 ,  H04N19/182 ,  H04N19/30 ,  H04N19/50 ,  H04N19/503 ,  H04N19/60 ,  H04N19/61 ,  H04N19/91 ,  H04N19/96

    Abstract: An apparatus for decoding an image, the apparatus including an entropy decoder that performs entropy-decoding to obtain quantized transformation coefficients of at least one transformation unit in a coding unit of the image, a decoder that determines a prediction mode of at least one prediction unit in the coding unit from information indicating the prediction mode for the at least one prediction unit, when the prediction mode is determined to be an inter prediction mode, not in an intra prediction mode, determines a size of the at least one transformation unit in the coding unit regardless of a size of the at least one prediction unit in the coding unit, and performs inverse-quantization and inverse-transformation on the quantized transformation coefficients of the at least one transformation unit to obtain residuals, and a restorer that performs inter prediction for at least one prediction unit in the coding unit to generate a predictor and restores the image by using the residuals and the predictor.

    Abstract translation: 一种用于对图像进行解码的装置，所述装置包括熵解码器，所述熵解码器执行熵解码以获得所述图像的编码单元中的至少一个变换单元的量化变换系数;解码器，确定至少一个预测单元的预测模式 在来自指示所述至少一个预测单元的预测模式的信息的编码单元中，当所述预测模式被确定为帧间预测模式时，在帧内预测模式中，确定所述至少一个变换单元的大小 编码单元，而不管编码单元中的至少一个预测单元的大小如何，并且对至少一个变换单元的量化变换系数执行逆量化和逆变换以获得残差;以及恢复器，执行帧间预测 对于编码单元中的至少一个预测单元来生成预测器，并通过使用残差a来恢复图像 和预测因子。

    Method and apparatus for encoding/decoding motion vector
    25.
    发明授权
    Method and apparatus for encoding/decoding motion vector 有权
    用于编码/解码运动矢量的方法和装置

    公开(公告)号：US08811488B2

    公开(公告)日：2014-08-19

    申请号：US14028816

    申请日：2013-09-17

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Tammy Lee ,  Woo-jin Han ,  Kyo-hyuk Lee

    IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N7/26 ,  H04N7/36

    CPC classification number: H04N19/139 ,  H04N19/105 ,  H04N19/117 ,  H04N19/124 ,  H04N19/147 ,  H04N19/159 ,  H04N19/176 ,  H04N19/184 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/61 ,  H04N19/70 ,  H04N19/865 ,  H04N19/96

    Abstract: Provided are methods and apparatuses for encoding and decoding a motion vector including a method of decoding that includes obtaining a current coding unit by hierarchically split from a maximum coding unit according to a current depth, obtaining a prediction mode information of a current coding unit from bitstream, determining motion vector predictor candidates from among motion vectors of adjacent coding unit adjacent to the current coding unit, and determining a motion vector predictor of the current coding unit from among the motion vector predictor candidates based on prediction mode information of the current coding unit, wherein the adjacent coding unit comprise a first block outside the current coding unit located on a lower-left side of the current coding unit.

    Abstract translation: 提供了一种用于编码和解码运动矢量的方法和装置，包括解码方法，包括通过根据当前深度从最大编码单元分层分割获得当前编码单元，从比特流获取当前编码单元的预测模式信息 从与当前编码单元相邻的相邻编码单元的运动矢量中确定运动矢量预测器候选，以及基于当前编码单元的预测模式信息，从运动矢量预测器候选中确定当前编码单元的运动矢量预测器， 其中相邻编码单元包括位于当前编码单元的左下侧的当前编码单元外部的第一块。

    Method and apparatus for encoding/decoding motion vector
    26.
    发明授权
    Method and apparatus for encoding/decoding motion vector 有权
    用于编码/解码运动矢量的方法和装置

    公开(公告)号：US08792558B2

    公开(公告)日：2014-07-29

    申请号：US13925437

    申请日：2013-06-24

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Tammy Lee ,  Woo-jin Han ,  Kyo-hyuk Lee

    IPC: H04N7/12 ,  H04N7/36

    CPC classification number: H04N19/139 ,  H04N19/105 ,  H04N19/117 ,  H04N19/124 ,  H04N19/147 ,  H04N19/159 ,  H04N19/176 ,  H04N19/184 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/61 ,  H04N19/70 ,  H04N19/865 ,  H04N19/96

    Abstract: Provided are methods and apparatuses for encoding and decoding a motion vector. The method of encoding the motion vector includes: selecting, as a mode of encoding information about a motion vector predictor of the current block, a first mode in which information indicating the motion vector predictor from among at least one motion vector predictor is encoded or a second mode in which information indicating generation of the motion vector predictor based on blocks or pixels included in a previously encoded area adjacent to the current block is encoded; determining the motion vector predictor of the current block according to the selected mode and encoding the information about the motion vector predictor of the current block; and encoding a difference vector between the motion vector of the current block and the motion vector predictor of the current block.

    Abstract translation: 提供了用于对运动矢量进行编码和解码的方法和装置。 对运动矢量进行编码的方法包括：作为对当前块的运动矢量预测器的信息进行编码的模式，选择对从至少一个运动矢量预测器中的运动矢量预测器进行编码的信息进行编码的第一模式， 第二模式，其中编码基于与当前块相邻的先前编码区域中包括的块或像素的运动矢量预测器的生成的信息; 根据所选择的模式确定当前块的运动矢量预测器，并对关于当前块的运动矢量预测器的信息进行编码; 并且对当前块的运动矢量与当前块的运动矢量预测器之间的差矢量进行编码。

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