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    METHOD AND APPARATUS FOR ENCODING/DECODING VIDEO AND METHOD FOR TRANSMITTING BITSTREAM
    41.
    发明申请
    METHOD AND APPARATUS FOR ENCODING/DECODING VIDEO AND METHOD FOR TRANSMITTING BITSTREAM 有权

    公开(公告)号：US20240406388A1

    公开(公告)日：2024-12-05

    申请号：US18798302

    申请日：2024-08-08

    Applicant: LG Electronics Inc.

    Inventor： Ling LI ,  Jin HEO

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

    Abstract: An image decoding method is disclosed. The image decoding method includes obtaining intra prediction mode information of a current block from a bitstream, determining an intra prediction mode of the current block based on the intra prediction mode information and an intra prediction mode of a neighboring block located around the current block, deriving a value of a first filter flag for use of filtering of an intra prediction reference sample of the current block based on coding parameters for the current block, selecting an interpolation filter to be used for intra prediction of the current block based on the first filter flag, and generating an intra prediction block of the current block using the selected interpolation filter.

    INTRA PREDICTION METHOD ON BASIS OF MPM LIST AND APPARATUS THEREFOR
    42.
    发明公开
    INTRA PREDICTION METHOD ON BASIS OF MPM LIST AND APPARATUS THEREFOR 审中-公开

    公开(公告)号：US20240357077A1

    公开(公告)日：2024-10-24

    申请号：US18632155

    申请日：2024-04-10

    Applicant: LG ELECTRONICS INC.

    Inventor： Ling LI ,  Jaehyun Lim ,  Jin Heo ,  Janwon Choi ,  Seunghwan KIM

    IPC: H04N19/105 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46

    CPC classification number: H04N19/105 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46

    Abstract: An image decoding method performed by a decoding apparatus according to the present disclosure comprises the steps of: obtaining intra prediction information including at least one of MPM flag information, MRL index information, and planner flag information from a bitstream; checking the MPM flag information; checking the MRL index information on the basis of a case where the MPM flag information indicates that the MRL index information is checked; checking the planner flag information on the basis of a case where a value of the MRL index information is 0; deriving an intra prediction mode for a current block on the basis of the check for the planner flag information; deriving prediction samples for the current block on the basis of the intra prediction mode for the current block; and generating a reconstructed picture on the basis of the prediction samples.

    INTRA PREDICTION-BASED IMAGE CODING METHOD USING MPM LIST AND APPARATUS THEREFOR
    45.
    发明公开
    INTRA PREDICTION-BASED IMAGE CODING METHOD USING MPM LIST AND APPARATUS THEREFOR 审中-公开

    公开(公告)号：US20240129457A1

    公开(公告)日：2024-04-18

    申请号：US18538463

    申请日：2023-12-13

    Applicant: LG ELECTRONICS INC.

    Inventor： Jin HEO ,  Seunghwan KIM ,  Ling LI

    IPC: H04N19/105 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176

    CPC classification number: H04N19/105 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176

    Abstract: An image decoding method according to the present disclosure comprises deriving a first candidate intra prediction mode based on a first neighboring block of a current block; deriving a second candidate intra prediction mode based on a second neighboring block of the current block; constructing MPM (Most Probable Mode) list of the current block based on the first candidate intra prediction mode and the second candidate intra prediction mode; deriving an intra prediction mode for the current block based on the MPM list; and generating a prediction sample for the current block based on the intra prediction mode, wherein the first neighboring block is a left neighboring block located at the lowermost side among neighboring blocks adjacent to a left boundary of the current block, and wherein the second neighboring block is an upper neighboring block located at the rightmost side among neighboring blocks adjacent to an upper boundary of the current block.

    INTRA PREDICTION-BASED VIDEO CODING METHOD AND DEVICE USING MPM LIST
    47.
    发明公开
    INTRA PREDICTION-BASED VIDEO CODING METHOD AND DEVICE USING MPM LIST 审中-公开

    公开(公告)号：US20230379493A1

    公开(公告)日：2023-11-23

    申请号：US18230925

    申请日：2023-08-07

    Applicant: LG Electronics Inc.

    Inventor： Jin HEO ,  Jungah CHOI ,  Jangwon CHOI ,  Sunmi YOO ,  Ling LI

    IPC: H04N19/593 ,  H04N19/11 ,  H04N19/132 ,  H04N19/136 ,  H04N19/176

    CPC classification number: H04N19/593 ,  H04N19/11 ,  H04N19/132 ,  H04N19/136 ,  H04N19/176

    Abstract: A video decoding method according to the present document comprises the steps of: configuring an MPM list by deriving candidate intra prediction modes on the basis of a first neighboring block located on the left side and a second neighboring block located on the upper side with respect to the current block; deriving an intra prediction mode for the current block on the basis of the MPM list; generating prediction samples for the current block on the basis of the intra prediction mode; and generating a reconstructed picture for the current block on the basis of the prediction samples, wherein a first intra prediction mode of the first neighboring block and a second intra prediction mode of the second neighboring block are the same, wherein the candidate intra prediction modes including a DC mode are derived on the basis of a case where both the first intra prediction mode and the second intra prediction mode are the DC mode.

    IMAGE CODING METHOD AND DEVICE FOR CARRYING OUT MRL-BASED INTRA PREDICTION
    48.
    发明公开
    IMAGE CODING METHOD AND DEVICE FOR CARRYING OUT MRL-BASED INTRA PREDICTION 审中-公开

    公开(公告)号：US20230328231A1

    公开(公告)日：2023-10-12

    申请号：US18209310

    申请日：2023-06-13

    Applicant: LG Electronics Inc.

    Inventor： Jin HEO ,  Sunmi YOO ,  Ling LI ,  Jangwon CHOI ,  Jungah CHOI

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

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

    Abstract: An image decoding method includes: configuring a MPM list including candidate intra prediction modes for a current block; deriving an intra prediction mode of the current block from the MPM list on the basis of MPM index information indicating an intra prediction mode, among the candidate intra prediction modes included in the MPM list, for the current block; generating prediction samples for the current block on the basis of the intra prediction mode; and generating a reconstructed picture for the current block on the basis of the prediction samples, wherein the step for configuring the MPM list comprises, on the basis of the case where the value of reference line index information, representing a reference line used for the intra prediction of the current block, is not zero, deriving a DC mode as one mode among the candidate intra prediction modes, and including same in the MPM list.

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