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    VIDEO ENCODING METHOD USING OFFSET ADJUSTMENT ACCORDING TO CLASSIFICATION OF PIXELS BY MAXIMUM ENCODING UNITS AND APPARATUS THEREOF, AND VIDEO DECODING METHOD AND APPARATUS THEREOF
    11.
    发明申请
    VIDEO ENCODING METHOD USING OFFSET ADJUSTMENT ACCORDING TO CLASSIFICATION OF PIXELS BY MAXIMUM ENCODING UNITS AND APPARATUS THEREOF, AND VIDEO DECODING METHOD AND APPARATUS THEREOF 审中-公开
    使用最大编码单位对像素进行偏移调整的视频编码方法及其设备及其视频解码方法及装置

    公开(公告)号：US20150189296A1

    公开(公告)日：2015-07-02

    申请号：US14656404

    申请日：2015-03-12

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Elena ALSHINA ,  Alexander ALSHIN

    IPC: H04N19/186 ,  H04N19/176 ,  H04N19/65

    CPC classification number: H04N19/176 ,  H04N19/117 ,  H04N19/136 ,  H04N19/14 ,  H04N19/182 ,  H04N19/186 ,  H04N19/463 ,  H04N19/65 ,  H04N19/82 ,  H04N19/96

    Abstract: A video decoding method includes extracting offset mergence information of a current largest coding unit (LCU), the offset mergence information indicating whether to adopt a second offset parameter as a first offset parameter of the current LCU; reconstructing the first offset parameter of the current LCU based on the offset mergence information, the first offset parameter including an offset type, an offset value, and an offset class of the current LCU; determining whether the current LCU is an edge type or a band type, based on the offset type; determining an edge direction according to the edge type or a band range according to the band type, based on the offset class; determining a difference value between reconstructed pixels and original pixels included in the offset class, based on the offset value; and adjusting pixel values of reconstructed pixels based on the difference value.

    Abstract translation: 视频解码方法包括提取当前最大编码单元（LCU）的偏移合并信息，该偏移合并信息指示是否采用第二偏移参数作为当前LCU的第一偏移参数; 基于偏移合并信息重构当前LCU的第一偏移参数，第一偏移参数包括当前LCU的偏移类型，偏移值和偏移等级; 基于偏移类型确定当前LCU是边缘类型还是带类型; 基于偏移等级，根据边缘类型或根据频带类型的频带范围确定边缘方向; 基于所述偏移值来确定所述偏移类别中包括的重建像素与原始像素之间的差值; 以及基于所述差值来调整重构像素的像素值。

    VIDEO DECODING METHOD AND APPARATUS AND VIDEO ENCODING METHOD AND APPARATUS
    16.
    发明公开
    VIDEO DECODING METHOD AND APPARATUS AND VIDEO ENCODING METHOD AND APPARATUS 审中-公开

    公开(公告)号：US20230156216A1

    公开(公告)日：2023-05-18

    申请号：US18151266

    申请日：2023-01-06

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Alexander ALSHIN ,  Elena ALSHINA

    IPC: H04N19/513 ,  H04N19/105 ,  H04N19/139 ,  H04N19/159 ,  H04N19/176

    CPC classification number: H04N19/513 ,  H04N19/105 ,  H04N19/139 ,  H04N19/159 ,  H04N19/176

    Abstract: Provided is a video decoding method including determining a displacement vector per unit time of pixels of a current block in a horizontal direction or a vertical direction, the pixels including a pixel adjacent to an inside of a boundary of the current block, by using values about reference pixels included in a first reference block and a second reference block, without using a stored value about a pixel located outside boundaries of the first reference block and the second reference block; and obtaining a prediction block of the current block by performing block-unit motion compensation and pixel group unit motion compensation on the current block by using a gradient value in the horizontal direction or the vertical direction of a first corresponding reference pixel in the first reference block which corresponds to a current pixel included in a current pixel group in the current block, a gradient value in the horizontal direction or the vertical direction of a second corresponding reference pixel in the second reference block which corresponds to the current pixel, a pixel value of the first corresponding reference pixel, a pixel value of the second corresponding reference pixel, and a displacement vector per unit time of the current pixel in the horizontal direction or the vertical direction. In this regard, the current pixel group may include at least one pixel.

    VIDEO DECODING METHOD AND APPARATUS AND VIDEO ENCODING METHOD AND APPARATUS
    17.
    发明申请
    VIDEO DECODING METHOD AND APPARATUS AND VIDEO ENCODING METHOD AND APPARATUS 有权

    公开(公告)号：US20210281872A1

    公开(公告)日：2021-09-09

    申请号：US17317331

    申请日：2021-05-11

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Alexander ALSHIN ,  Elena Alshina

    IPC: H04N19/513 ,  H04N19/105 ,  H04N19/139 ,  H04N19/159 ,  H04N19/176

    Abstract: Provided is a video decoding method including determining a displacement vector per unit time of pixels of a current block in a horizontal direction or a vertical direction, the pixels including a pixel adjacent to an inside of a boundary of the current block, by using values about reference pixels included in a first reference block and a second reference block, without using a stored value about a pixel located outside boundaries of the first reference block and the second reference block; and obtaining a prediction block of the current block by performing block-unit motion compensation and pixel group unit motion compensation on the current block by using a gradient value in the horizontal direction or the vertical direction of a first corresponding reference pixel in the first reference block which corresponds to a current pixel included in a current pixel group in the current block, a gradient value in the horizontal direction or the vertical direction of a second corresponding reference pixel in the second reference block which corresponds to the current pixel, a pixel value of the first corresponding reference pixel, a pixel value of the second corresponding reference pixel, and a displacement vector per unit time of the current pixel in the horizontal direction or the vertical direction. In this regard, the current pixel group may include at least one pixel.

    METHOD FOR ENCODING/DECODING IMAGE, AND DEVICE THEREFOR
    20.
    发明申请
    METHOD FOR ENCODING/DECODING IMAGE, AND DEVICE THEREFOR 审中-公开

    公开(公告)号：US20180324456A1

    公开(公告)日：2018-11-08

    申请号：US15775627

    申请日：2016-11-10

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Alexander ALSHIN ,  Mikhail MISHUROVSKIY

    IPC: H04N19/573 ,  H04N19/52 ,  H04N19/577 ,  H04N19/513

    CPC classification number: H04N19/573 ,  H04N19/105 ,  H04N19/109 ,  H04N19/172 ,  H04N19/176 ,  H04N19/44 ,  H04N19/513 ,  H04N19/52 ,  H04N19/521 ,  H04N19/577

    Abstract: Provided is an image decoding method including: determining at least one prediction block included in a current picture from among pictures forming an image; determining a first motion vector related to a current prediction block from among the at least one prediction block; determining a first reference block included in a first reference picture, based on the first motion vector; determining a second reference block included in a second reference picture, based on a location of the first reference block; and decoding the current picture by performing inter prediction on the current prediction block by using at least one of the first reference block and the second reference block, wherein the second reference picture includes a prediction value of the first reference picture. Also, provided are an image decoding apparatus performing the image decoding method, and an image encoding method and apparatus corresponding to the image decoding method and apparatus.

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