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    Methods and apparatuses for encoding and decoding video
    1.
    发明授权
    Methods and apparatuses for encoding and decoding video 有权

    公开(公告)号：US09635353B2

    公开(公告)日：2017-04-25

    申请号：US14218177

    申请日：2014-03-18

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Sung-oh Kim ,  Chan-sik Park ,  Young-ho Moon ,  Kyo-hyuk Lee

    IPC: H04N7/12 ,  H04N19/105 ,  H04N19/52 ,  H04N19/176 ,  H04N19/157

    CPC classification number: H04N19/105 ,  H04N19/157 ,  H04N19/176 ,  H04N19/52

    Abstract: Provided are methods and apparatuses for performing motion estimation encoding and decoding on a video. A method of encoding a video includes splitting a picture by using a maximum coding unit; splitting the maximum coding unit into prediction units, according to a split mode indicating a split form of the maximum coding unit; performing motion estimation on a prediction unit having a size equal to or less than a predetermined size from among the prediction units included in the maximum coding unit, and obtaining a motion vector of the prediction unit having the size equal to or less than the predetermined size; and obtaining a motion vector of a prediction unit having a size greater than the predetermined size, by using the motion vector of the prediction unit having the size equal to or less than the predetermined size.

    Method and apparatus for encoding/decoding motion vector
    3.
    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：US09544588B2

    公开(公告)日：2017-01-10

    申请号：US14341493

    申请日：2014-07-25

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

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

    IPC: H04N7/12 ,  H04N11/02 ,  H04N11/04 ,  H04N19/51 ,  H04N19/105 ,  H04N19/52 ,  H04N19/139 ,  H04N19/176 ,  H04N19/70 ,  H04N19/147 ,  H04N19/513 ,  H04N19/61 ,  H04N19/96

    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 hierarchically split from a maximum coding unit according to a current depth, obtaining a prediction mode information of a current prediction unit in the current coding unit from bitstream, when a prediction mode of the current prediction unit is inter-prediction mode, determining motion vector predictor candidates from among motion vectors of neighboring prediction units adjacent to the current prediction unit, and determining a motion vector predictor of the current prediction unit from among the motion vector predictor candidates, wherein the neighboring prediction unit comprises a first block directly to the left side of a leftmost block among blocks located directly to a bottom side of the current prediction unit and a second block located directly to a upper side of the first block.

    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，包括从当前深度从最大编码单元分级地获取当前编码单元，获得当前预测单元的预测模式信息 编码单元，当当前预测单元的预测模式是帧间预测模式时，从与当前预测单元相邻的相邻预测单元的运动矢量中确定运动矢量预测器候选，并且确定当前预测的运动矢量预测器 其中所述相邻预测单元包括直接位于当前预测单元的底侧的块中的最左侧块的左侧的第一块和直接位于上侧的第二块 的第一块。

    METHOD AND APPARATUS FOR DETERMINING OFFSET VALUES USING HUMAN VISUAL CHARACTERISTICS
    9.
    发明申请
    METHOD AND APPARATUS FOR DETERMINING OFFSET VALUES USING HUMAN VISUAL CHARACTERISTICS 有权
    使用人类视觉特征确定偏移值的方法和装置

    公开(公告)号：US20150086124A1

    公开(公告)日：2015-03-26

    申请号：US14394786

    申请日：2013-04-17

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Hak-sup Song ,  Jae-hwan Joo ,  Chan-yul Kim ,  Jong-bum Choi ,  Jae-hyun Kim ,  Jeong-hoon Park ,  Kyo-hyuk Lee

    IPC: H04N19/154 ,  H04N19/176

    CPC classification number: H04N19/154 ,  H04N19/117 ,  H04N19/14 ,  H04N19/176 ,  H04N19/198 ,  H04N19/61 ,  H04N19/86 ,  H04N19/96

    Abstract: A method of determining an offset includes dividing a current image into a plurality of blocks, determining a category of pixels in each of the plurality of blocks based on values of neighboring pixels, determining an offset value for pixels belonging to the category, and adjusting the offset value based on characteristics of the category and a background pixel value of each of the pixels. The offset value is an average of differences between values of original images and restored images of pixels belonging to one category. The background pixel value is an average of values of pixels in a background pixel block to which the pixels belong among background pixel blocks divided to calculate a background pixel value.

    Abstract translation: 确定偏移的方法包括：将当前图像划分为多个块，基于相邻像素的值来确定多个块中的每个块中的像素的类别，确定属于该类别的像素的偏移值，以及调整 基于类别的特性和每个像素的背景像素值的偏移值。 偏移值是原始图像的值与属于一个类别的像素的还原图像之间的差的平均值。 背景像素值是被划分的像素属于背景像素块的背景像素块中的像素的值的平均值，以计算背景像素值。

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