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    Method for encoding and decoding video, and apparatus using same
    1.
    发明授权
    Method for encoding and decoding video, and apparatus using same 有权

    公开(公告)号：US12167026B2

    公开(公告)日：2024-12-10

    申请号：US18130105

    申请日：2023-04-03

    Applicant: LG ELECTRONICS INC.

    Inventor： Jaehyun Lim ,  Jungsun Kim ,  Seungwook Park ,  Jaewon Sung ,  Byeongmoon Jeon ,  Joonyoung Park ,  Yongjoon Jeon ,  Younghee Choi

    IPC: G06V10/00 ,  G06T9/00 ,  H04N19/159 ,  H04N19/176 ,  H04N19/182 ,  H04N19/31 ,  H04N19/52

    Abstract: The present invention relates to a technique for encoding and decoding video data, and more particularly, to a method for performing inter-prediction in an effective manner. The present invention combines an inter-prediction method using an AMVP mode and an inter-prediction method using a merge mode so as to propose a method for using the same candidate. The method for encoding video data proposed by the present invention comprises the following steps: receiving mode information on an inter-prediction method of a current block; determining, on the basis of the received mode information, whether the interprediction method to be applied to the current block is an AMVP mode or a merge mode; and selecting a candidate to derive motion information of the current block, wherein the candidate is selected in a left region, top region and corner region of the current block and in the same position block as the current block, and the AMVP mode and the merge mode are applied on the basis of the selected candidate.

    INTRA-PREDICTION METHOD, AND ENCODER AND DECODER USING SAME
    9.
    发明申请
    INTRA-PREDICTION METHOD, AND ENCODER AND DECODER USING SAME 有权

    公开(公告)号：US20210112274A1

    公开(公告)日：2021-04-15

    申请号：US17132378

    申请日：2020-12-23

    Applicant: LG ELECTRONICS INC.

    Inventor： Joonyoung PARK ,  Seungwook Park ,  Jaehyun LIM ,  Jungsun KIM ,  Younghee Choi ,  Byeongmoon Jeon ,  Yongjoon Jeon

    IPC: H04N19/593 ,  H04N19/105 ,  H04N19/176 ,  H04N19/11 ,  H04N19/117

    Abstract: The present invention relates to an intra-prediction method and to an encoder and decoder using same. The intra-prediction method according to one embodiment of the present invention comprises the steps of: deriving a prediction mode of a current block; and generating a prediction block with respect to the current block on the basis of the prediction mode of the current block. When the prediction mode of the current block is an intra-angular prediction mode, values of boundary samples from among left boundary samples and upper boundary samples of the prediction block, which are not positioned in a prediction direction of the intra-angular prediction mode, are derived on the basis of reference samples positioned in the prediction direction of the intra-angular prediction mode, and on the basis of adjacent reference samples.

    METHOD AND APPARATUS FOR PROCESSING VIDEO SIGNAL
    10.
    发明申请
    METHOD AND APPARATUS FOR PROCESSING VIDEO SIGNAL 审中-公开

    公开(公告)号：US20200336761A1

    公开(公告)日：2020-10-22

    申请号：US16922830

    申请日：2020-07-07

    Applicant: LG ELECTRONICS INC.

    Inventor： Joonyoung Park ,  Seungwook Park ,  Jaehyun Lim ,  Jungsun Kim ,  Younghee Choi ,  Jaewon Sung ,  Byeongmoon Jeon ,  Yongjoon Jeon

    IPC: H04N19/55 ,  H04N19/52 ,  H04N19/61 ,  H04N19/176 ,  H04N19/593 ,  H04N19/625 ,  H04N19/172 ,  H04N19/184 ,  H04N19/513

    Abstract: The present invention relates to a method and apparatus for processing a video signal, which can increase the accuracy of the motion vector prediction through motion vector scaling which takes a difference in the temporal distance between reference pictures into consideration. To this end, the present invention provides a video signal processing method and a video signal processing apparatus using the same, and the method comprises the steps of: scaling at least one neighboring partition motion vector for a motion vector prediction of the current partition; scaling the neighboring partition motion vector, which has been selected, when the reference picture of the neighboring partition motion vector is different from the reference picture of the current partition; acquiring a motion vector prediction value of the current partition using the scaled motion vector; and acquiring a motion vector of the current partition using the motion vector prediction value.

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