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    Method and apparatus for encoding and decoding image by using large transform unit
    102.
    发明授权
    Method and apparatus for encoding and decoding image by using large transform unit 有权
    通过使用大型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：US08891893B2

    公开(公告)日：2014-11-18

    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 ,  Il-koo Kim ,  Tammy Lee ,  Jianle Chen

    IPC: G06K9/36 ,  H04N19/503 ,  H04N19/593 ,  H04N19/44 ,  H04N19/61

    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 and decoding motion vector
    106.
    发明授权
    Method and apparatus for encoding and decoding motion vector 有权
    用于编码和解码运动矢量的方法和装置

    公开(公告)号：US08630351B2

    公开(公告)日：2014-01-14

    申请号：US13628682

    申请日：2012-09-27

    Applicant: Samsung Electronics Co., Ltd.

    Inventor： Tammy Lee ,  Woo-jin Han ,  Jung-hye Min

    IPC: H04N7/12

    CPC classification number: H04N19/33 ,  H04N19/103 ,  H04N19/105 ,  H04N19/139 ,  H04N19/147 ,  H04N19/176 ,  H04N19/44 ,  H04N19/51 ,  H04N19/513 ,  H04N19/52 ,  H04N19/61 ,  H04N19/70 ,  H04N19/96

    Abstract: Provided are methods and apparatuses for encoding and decoding a motion vector. The method of encoding a motion vector includes: selecting a mode from among a first mode in which information indicating a motion vector predictor of at least one motion vector predictor is encoded and a second mode in which information indicating generation of a motion vector predictor based on pixels included in a previously encoded area adjacent to a current block is encoded; determining a motion vector predictor of the current block according to the selected mode and encoding information about the motion vector predictor of the current block; and encoding a difference vector between a 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。 编码运动矢量的方法包括：从表示至少一个运动矢量预测器的运动矢量预测器的信息被编码的第一模式中选择模式，以及第二模式，其中基于 包括在与当前块相邻的先前编码区域中的像素被编码; 根据所选择的模式确定当前块的运动矢量预测器，并且编码关于当前块的运动矢量预测器的信息; 以及对当前块的运动矢量和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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