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    ENCODING METHOD AND APPARATUS THEREFOR, AND DECODING METHOD AND APPARATUS THEREFOR
    37.
    发明申请
    ENCODING METHOD AND APPARATUS THEREFOR, AND DECODING METHOD AND APPARATUS THEREFOR 有权

    公开(公告)号：US20220417553A1

    公开(公告)日：2022-12-29

    申请号：US17896608

    申请日：2022-08-26

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Jin-Young Lee ,  Yin-ji Piao ,  Elena Alshina

    IPC: H04N19/53 ,  H04N19/13 ,  H04N19/176 ,  H04N19/184 ,  H04N19/52

    Abstract: Provided is a video decoding method including: obtaining, from a bitstream, prediction motion vector information indicating a prediction motion vector of a current block and difference motion vector information indicating a difference motion vector of the current block; determining the prediction motion vector of the current block according to whether or not an adjacent block of the current block is decoded and the prediction motion vector information; determining a motion vector resolution of the current block according to whether or not the adjacent block of the current block is decoded; determining the difference motion vector of the current block according to the difference motion vector information; determining a motion vector of the current block according to the prediction motion vector, the motion vector resolution, and the difference motion vector; and reconstructing the current block according to the motion vector of the current block, wherein the adjacent block of the current block includes a right block of the current block.

    Encoding method and apparatus therefor, and decoding method and apparatus therefor
    38.
    发明授权
    Encoding method and apparatus therefor, and decoding method and apparatus therefor 有权

    公开(公告)号：US11432003B2

    公开(公告)日：2022-08-30

    申请号：US16648510

    申请日：2018-09-28

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Jin-young Lee ,  Yin-ji Piao ,  Elena Alshina

    IPC: H04N19/13 ,  H04N19/53 ,  H04N19/176 ,  H04N19/184 ,  H04N19/52

    Abstract: Provided is a video decoding method including: obtaining, from a bitstream, prediction motion vector information indicating a prediction motion vector of a current block and difference motion vector information indicating a difference motion vector of the current block; determining the prediction motion vector of the current block according to whether or not an adjacent block of the current block is decoded and the prediction motion vector information; determining a motion vector resolution of the current block according to whether or not the adjacent block of the current block is decoded; determining the difference motion vector of the current block according to the difference motion vector information; determining a motion vector of the current block according to the prediction motion vector, the motion vector resolution, and the difference motion vector; and reconstructing the current block according to the motion vector of the current block, wherein the adjacent block of the current block includes a right block of the current block.

    Encoding device, decoding device, and encoding and decoding method thereof
    39.
    发明授权
    Encoding device, decoding device, and encoding and decoding method thereof 有权

    公开(公告)号：US10531102B2

    公开(公告)日：2020-01-07

    申请号：US15743941

    申请日：2016-07-26

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Yin-ji Piao ,  Ki-ho Choi

    IPC: H04N19/18 ,  H04N19/129 ,  H04N19/119 ,  H04N19/70

    Abstract: An encoding device for encoding a bit stream including an image frame may include an encoder configured to determine a position of a pixel having a last non-zero coefficient in a conversion coefficient block constituting the image frame with reference to a predetermined pixel of the conversion coefficient block, identify a sub-block including the last non-zero coefficient, among a plurality of sub-blocks constituting the conversion coefficient block, convert a position of the last non-zero coefficient determined with reference to the predetermined pixel of the conversion coefficient block into a position with reference to a predetermined pixel of the identified sub-block, and encode the sub-block including the last non-zero coefficient and the converted position of the last non-zero coefficient.

    Video encoding method and device involving intra prediction, and video decoding method and device
    40.
    发明授权
    Video encoding method and device involving intra prediction, and video decoding method and device 有权

    公开(公告)号：US10257538B2

    公开(公告)日：2019-04-09

    申请号：US15185153

    申请日：2016-06-17

    Applicant: SAMSUNG ELECTRONICS CO., LTD.

    Inventor： Yin-ji Piao ,  Sun-il Lee

    IPC: H04N19/593 ,  H04N19/463 ,  H04N19/176 ,  H04N19/11

    Abstract: Provided is a video decoding method including determining a reference intra prediction mode, based on availability and a prediction mode of an adjacent block of a current block; determining a plurality of candidate intra prediction modes for the current block, based on the reference intra prediction mode; obtaining, from a bitstream, intra prediction data comprising information regarding an intra prediction mode of the current block; when the intra prediction data indicates that the current block is predicted according to one of the plurality of candidate intra prediction modes, selecting an intra prediction mode to be used in intra predicting the current block, wherein the intra prediction mode is from among the plurality of candidate intra prediction modes; and performing intra prediction on the current block, according to the selected intra prediction mode.

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