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    METHOD FOR INTRA PREDICTION
    1.
    发明公开
    METHOD FOR INTRA PREDICTION 审中-公开

    公开(公告)号：EP3863288A1

    公开(公告)日：2021-08-11

    申请号：EP21165675.6

    申请日：2012-10-16

    申请人： LG Electronics, Inc.

    发明人： Lim, Jaehyun ,  Park, Seungwook ,  Jeon, Yongjoon ,  Kim, Jungsun ,  Hendry, Hendry ,  Jeon, Byeongmoon ,  Park, Joonyoung ,  Kim, Chulkeun ,  Park, Naeri

    IPC分类号： H04N19/426 ,  H04N19/176 ,  H04N19/593 ,  H04N19/11 ,  H04N19/463

    摘要： An intra prediction method performed by a decoding apparatus is disclosed, the method comprising the steps of:
    deriving a first candidate intra prediction mode based on a left neighboring block of a current block;
    deriving a second candidate intra prediction mode based on an upper neighboring block of the current block;
    determining an intra prediction mode for the current block as one of candidate modes including the first candidate intra prediction mode and the second candidate intra prediction mode; and
    generating prediction samples on the current block based on the determined intra prediction mode,
    wherein when the upper neighboring block is not located in a current largest coding unit, LCU, in which the current block is located, the second candidate intra prediction mode is set equal to non-angular mode.

    IMAGE DECODING APPARATUS, IMAGE ENCODING APPARATUS, AND APPARATUS FOR TRANSMITTING DATA FOR AN IMAGE
    4.
    发明公开
    IMAGE DECODING APPARATUS, IMAGE ENCODING APPARATUS, AND APPARATUS FOR TRANSMITTING DATA FOR AN IMAGE 审中-公开

    公开(公告)号：EP4459997A2

    公开(公告)日：2024-11-06

    申请号：EP24200590.8

    申请日：2012-09-07

    申请人： LG Electronics Inc.

    发明人： Jeon, Yongjoon ,  Park, Seungwook ,  Lim, Jaehyun ,  Kim, Chulkeun ,  Kim, Jungsun ,  Park, Naeri ,  Hendry, Hendry ,  Jeon, Byeongmoon ,  Park, Joonyoung

    IPC分类号： H04N19/436

    摘要： A decoding apparatus for image decoding comprises a memory and at least one processor connected to the memory. The at least one processor is configured to receive information on a parallel merge level which represents a size of a parallel merging unit region and merge index information; obtain merge flag information which represents whether a merge mode is applied to a current block; derive spatial merging candidates for the current block based on the merge flag information indicating that the merge mode is applied to the current block; construct a merging candidate list including the spatial merging candidates for the current block; derive motion information of the current block based on one of the spatial merging candidates indicated by the merge index information in the merging candidate list; derive prediction samples of the current block based on the derived motion information; and generate a reconstructed picture based on the prediction samples. The size of the parallel merging unit region is derived based on the information on the parallel merge level. The current block belongs to the parallel merging unit region. The current block is related to a prediction unit, PU, and the PU is one of PUs partitioned from a coding unit, CU. The PU has a size smaller than the size of the parallel merging unit region and is located within the parallel merging unit region. The spatial merging candidates are identical to spatial merging candidates of a 2Nx2N PU which has a same size as the parallel merging unit region. The spatial merging candidates of the 2Nx2N PU which has the same size as the parallel merging unit region, are derived from a lower left corner neighboring block, a left neighboring block, an upper right corner neighboring block, an upper neighboring block and an upper left corner neighboring block of the parallel merging unit region. The information on the parallel merge level is received through a picture parameter set.

    METHOD AND APPARATUS FOR SIGNALING IMAGE INFORMATION, AND DECODING METHOD AND APPARATUS USING SAME
    6.
    发明公开
    METHOD AND APPARATUS FOR SIGNALING IMAGE INFORMATION, AND DECODING METHOD AND APPARATUS USING SAME 审中-公开

    公开(公告)号：EP3474551A1

    公开(公告)日：2019-04-24

    申请号：EP18211354.8

    申请日：2012-09-21

    申请人： LG Electronics Inc.

    发明人： Hendry, Hendry ,  Park, Seungwook ,  Lim, Jaehyun ,  Jeon, Yongjoon ,  Kim, Chulkeun ,  Kim, Jungsun ,  Park, Naeri ,  Jeon, Byeongmoon ,  Park, Joonyoung

    IPC分类号： H04N19/503 ,  H04N19/46 ,  H04N19/70 ,  H04N19/423 ,  H04N19/573 ,  H04N19/44 ,  H04N19/577

    摘要： An inter prediction method performed by a decoding apparatus, comprises obtaining picture order count (POC) information of reference pictures, which are used for inter prediction of a current picture and are prior to the current picture in a decoding order, from a bitstream; deriving picture order count (POC) values for specifying the reference pictures based on the picture order count (POC) information; constructing a reference picture list based on the derived picture order count (POC) values of the reference picture; and performing the inter prediction on a current block based on the reference picture list to derive a predicted sample of the current block. A picture order count (POC) value for specifying an i-th reference picture is derived based on a picture order count (POC) difference indicated by the picture order count (POC) information, wherein the picture order count (POC) information is included in a slice header. The picture order count (POC) difference specifies a difference between picture order count (POC) values of the current picture and the i-th reference picture when the i-th reference picture is a first reference picture specified by the picture order count (POC) information. The picture order count (POC) difference specifies a difference between picture order count (POC) values of the i-th reference picture and an (i-1)-th reference picture when the i-th reference picture is a second reference picture or a subsequent reference picture thereof specified by the picture order count (POC) information.