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    Intra prediction mode based image processing method, and apparatus therefor
    112.
    发明授权
    Intra prediction mode based image processing method, and apparatus therefor 有权

    公开(公告)号：US10531084B2

    公开(公告)日：2020-01-07

    申请号：US15736415

    申请日：2016-06-14

    Applicant: LG ELECTRONICS INC.

    Inventor： Sunmi Yoo ,  Jin Heo ,  Yongjoon Jeon ,  Eunyong Son ,  Junghak Nam

    IPC: H04N11/02 ,  H04N19/105 ,  H04N19/176 ,  H04N19/107 ,  H04N19/159 ,  H04N19/593 ,  H04N19/11

    Abstract: Disclosed are an intra prediction mode based image processing method, and an apparatus therefor. In particular, a method for processing an image on the basis of an intra prediction mode comprises the steps of: inputting, in most probable mode (MPM) candidates, intra prediction modes of a plurality of neighboring blocks which neighbor a current block, and then deriving the MPM candidates by inputting, in the MPM candidates, intra prediction modes within substitute modes consisting of a plurality of intra prediction modes, to which priorities are given, according to the priorities until the total number of MPM candidates is satisfied; deriving, from the MPM candidates, an intra prediction mode applied to the current block using an MPM index indicating a specific intra prediction mode; and generating a prediction block of the current block by applying the derived intra prediction mode.

    Method and device for processing video signal
    113.
    发明授权
    Method and device for processing video signal 有权

    公开(公告)号：US10171836B2

    公开(公告)日：2019-01-01

    申请号：US14433773

    申请日：2013-10-04

    Applicant: LG Electronics Inc.

    Inventor： Moonmo Koo ,  Jiwook Jung ,  Sehoon Yea ,  Jin Heo ,  Taesup Kim ,  Jaewon Sung ,  Eunyong Son

    IPC: H04N19/597 ,  H04N13/00 ,  H04N19/52 ,  H04N13/161 ,  H04N19/43 ,  H04N19/436

    Abstract: According to the present invention, an inter-view motion vector of a current coding unit is acquired using parallel processing information, and a motion vector of a current prediction unit in the current coding unit is acquired in parallel using the inter-view motion vector of the current coding unit. The present invention relates to a method and device for processing a video signal, wherein a motion vector prediction value of the current prediction unit is acquired by comparing output order information of a reference picture corresponding to the current prediction unit and output order information of a reference picture corresponding to a corresponding block. According to the present invention, through a parallel processing step, a multi-view point video image can be quickly restored, and the accuracy of the motion vector prediction value can be increased using motion information corresponding to the reference picture of the corresponding block of a different view point from the current prediction unit.

    Method and device for processing video signal
    114.
    发明授权
    Method and device for processing video signal 有权

    公开(公告)号：US10021417B2

    公开(公告)日：2018-07-10

    申请号：US14406604

    申请日：2013-06-18

    Applicant: LG Electronics Inc.

    Inventor： Eunyong Son ,  Jiwook Jung ,  Sehoon Yea ,  Moonmo Koo ,  Jin Heo ,  Taesup Kim ,  Jaewon Sung

    IPC: H04N19/597 ,  H04N19/513 ,  H04N19/577 ,  H04N19/573

    CPC classification number: H04N19/597 ,  H04N19/513 ,  H04N19/521 ,  H04N19/573 ,  H04N19/577

    Abstract: The present invention relates to inter-view residual prediction and is characterized by obtaining residual data of a first reference block by using a motion vector of a neighboring block, obtaining residual data of a second reference block by using a reference view motion vector or a disparity vector, obtaining a residual data prediction value by using the residual data of the first reference block and the residual data of the second reference block, and coding a current texture block by using the residual data prediction value. The present invention can perform inter-view residual prediction by using a prediction value obtained using coded data of another view point belonging to the same time band to increase the accuracy of video data prediction by using a correlation between view points and reduce the amount of residual data to be transmitted, thereby improving the coding efficiency. In addition, the complexity in coding process may be reduced by adding a condition for applying the inter-view residual prediction.

    Intra prediction-based image coding in image coding system
    117.
    发明授权
    Intra prediction-based image coding in image coding system 有权

    公开(公告)号：US12301788B2

    公开(公告)日：2025-05-13

    申请号：US17442270

    申请日：2020-03-23

    Applicant: LG Electronics Inc.

    Inventor： Jangwon Choi ,  Jin Heo ,  Seunghwan Kim ,  Jaehyun Lim ,  Ling Li

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

    Abstract: An image decoding method performed by a decoding device according to the present document comprises the steps of: deriving an intra prediction type for a current block from intra prediction types; deriving a first intra prediction mode for a neighboring block to the left of the current block; deriving a second intra prediction mode for a neighboring block above the current block; constructing an intra prediction mode candidate list of the current block on the basis of the first intra prediction mode and the second intra prediction mode; deriving an intra prediction mode of the current block on the basis of the intra prediction mode candidate list; and generating prediction samples of the current block on the basis of the intra prediction type and the intra prediction mode.

    Intra prediction-based image coding method and apparatus using unified MPM list
    118.
    发明授权
    Intra prediction-based image coding method and apparatus using unified MPM list 有权

    公开(公告)号：US12273558B2

    公开(公告)日：2025-04-08

    申请号：US18391092

    申请日：2023-12-20

    Applicant: LG ELECTRONICS INC.

    Inventor： Jin Heo ,  Sunmi Yoo ,  Ling Li ,  Jangwon Choi ,  Jungah Choi

    IPC: H04N7/12 ,  H04N19/105 ,  H04N19/11 ,  H04N19/132 ,  H04N19/176 ,  H04N19/593

    Abstract: An image decoding method according to the present document comprises the steps of: acquiring, from a bitstream, reference line index information indicating a reference line to be used for intra prediction of a current block; constructing a most probable mode (MPM) list by deriving candidate intra prediction modes of the current block on the basis of the value of the reference line index information; deriving the intra prediction mode of 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 restoration samples for the current block on the basis of the prediction samples, wherein, on the basis of the case in which the value of the reference line index information is not zero, one of the candidate intra prediction modes is a DC mode and the number of candidate intra prediction modes including the DC mode is 5.

    Method for decoding image by using block partitioning in image coding system, and device therefor
    120.
    发明授权
    Method for decoding image by using block partitioning in image coding system, and device therefor 有权

    公开(公告)号：US12244802B2

    公开(公告)日：2025-03-04

    申请号：US18383216

    申请日：2023-10-24

    Applicant: LG ELECTRONICS INC.

    Inventor： Jangwon Choi ,  Seunghwan Kim ,  Jin Heo

    IPC: H04N19/119 ,  H04N19/136 ,  H04N19/176 ,  H04N19/186 ,  H04N19/70

    Abstract: The method for decoding an image by a decoding device according to the present document may comprise the steps of: acquiring image information comprising partitioning information for a current block; determining, on the basis of the size of the current block, whether to partition the current block; partitioning the current block into subblocks on the basis of the partitioning information, if it is determined that the current block is to be partitioned, and decoding the subblocks; and not partitioning the current block, if it is determined that the current block is not to be partitioned, and decoding the current block, wherein, if the current block is a chroma block, and the size of the current block is at most the minimum size of a chroma block, then it is determined that the current block is not to be partitioned.

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