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    IMAGE DECODING METHOD AND APPARATUS RELYING ON INTRA PREDICTION IN IMAGE CODING SYSTEM
    151.
    发明申请
    IMAGE DECODING METHOD AND APPARATUS RELYING ON INTRA PREDICTION IN IMAGE CODING SYSTEM 审中-公开

    公开(公告)号：US20200021800A1

    公开(公告)日：2020-01-16

    申请号：US16508658

    申请日：2019-07-11

    Applicant: LG ELECTRONICS INC.

    Inventor： Seunghwan KIM ,  Sunmi YOO ,  Ling LI ,  Jaehyun LIM ,  Jangwon CHOI ,  Jungah CHOI ,  Jin HEO

    IPC: H04N19/105 ,  H04N19/176 ,  H04N19/11 ,  H04N19/46 ,  H04N19/159

    Abstract: According to the present disclosure, a video decoding method performed by a video decoding device includes parsing remaining intra prediction mode information for a current block, deriving neighboring samples of the current block, deriving MPM list including MPM candidates of the current block, deriving an intra prediction mode of the current block based on the remaining intra prediction mode information, wherein the intra prediction mode is one of remaining intra prediction modes excluding the MPM candidates, deriving a prediction sample of the current block based on the intra prediction mode and the neighboring samples, and deriving a reconstructed picture based on the prediction sample, wherein the remaining intra prediction mode information is coded through a truncated binary (TB) binarization process, and wherein a binarization parameter for the TB binarization process is 60.

    METHOD AND DEVICE FOR PROCESSING CAMERA PARAMETER IN 3D VIDEO CODING
    155.
    发明申请
    METHOD AND DEVICE FOR PROCESSING CAMERA PARAMETER IN 3D VIDEO CODING 审中-公开
    用于在3D视频编码中处理相机参数的方法和装置

    公开(公告)号：US20160337665A1

    公开(公告)日：2016-11-17

    申请号：US15111735

    申请日：2015-09-24

    Applicant: LG ELECTRONICS INC.

    Inventor： Sunmi YOO ,  Junghak NAM ,  Sehoon YEA

    IPC: H04N19/597 ,  H04N13/00 ,  H04N19/70 ,  H04N19/172 ,  H04N19/176

    Abstract: The present invention relates to a device and a method for coding a 3D video, a decoding method, according to the present invention, comprising the steps of: receiving, through a first syntax, a camera parameter for switching a depth value into a disparity value; determining whether the camera parameter which applies to a previous slice or picture applies to a current slice or picture; and if the camera parameter applies to a current slice or picture, deriving a disparity value of a current block on the basis of the camera parameter. According to the present invention, slices or pictures of a certain interval may share the same camera parameter, the transmission of overlapping information may be prevented, and coding efficiency may be improved.

    Abstract translation: 本发明涉及根据本发明的用于对3D视频进行编码的设备和方法，解码方法，包括以下步骤：通过第一语法接收用于将深度值切换为视差值的相机参数 ; 确定应用于先前切片或图像的相机参数是否适用于当前切片或图片; 并且如果相机参数适用于当前片或图片，则基于相机参数导出当前块的视差值。 根据本发明，一定间隔的片段或图片可以共享相同的相机参数，可以防止重叠信息的传输，并且可以提高编码效率。

    IMAGE PREDICTION METHOD AND APPARATUS FOR PERFORMING INTRA PREDICTION
    156.
    发明申请
    IMAGE PREDICTION METHOD AND APPARATUS FOR PERFORMING INTRA PREDICTION 有权

    公开(公告)号：US20250159253A1

    公开(公告)日：2025-05-15

    申请号：US19026252

    申请日：2025-01-16

    Applicant: LG ELECTRONICS INC.

    Inventor： Sunmi YOO ,  Jin Heo

    IPC: H04N19/593 ,  H04N19/11 ,  H04N19/117 ,  H04N19/132 ,  H04N19/136 ,  H04N19/176

    Abstract: An image decoding method according to the present document may comprise the steps of: deriving an intra prediction mode for a current block; deriving reference samples located around the current block; generating a prediction sample for the current block on the basis of the intra prediction mode and the reference samples; and generating residual samples for the current block on the basis of the prediction sample, wherein the step of generating the prediction sample for the current block may comprise the steps of: deriving an interpolation filter, which is to be applied to the reference sample, on the basis of the prediction mode of the current block or the size of the current block; and generating the prediction sample by applying the derived interpolation filter to the reference sample.

    IMAGE DECODING METHOD USING BDPCM AND DEVICE THEREFOR
    159.
    发明申请
    IMAGE DECODING METHOD USING BDPCM AND DEVICE THEREFOR 有权

    公开(公告)号：US20250071297A1

    公开(公告)日：2025-02-27

    申请号：US18942083

    申请日：2024-11-08

    Applicant: LG ELECTRONICS INC.

    Inventor： Sunmi YOO ,  Junghak NAM ,  Jungah CHOI

    IPC: H04N19/176 ,  H04N19/132 ,  H04N19/159 ,  H04N19/593 ,  H04N19/70

    Abstract: An image decoding method performed by a decoding apparatus according to the present document comprises the steps of: deriving prediction samples for a first sample and a second sample of the current block on the basis of BDPCM-related information about the current block and neighboring samples of the current block; deriving residual samples for the first sample and the second sample on the basis of a residual coefficient of the first sample and a modified residual coefficient of the second sample; and storing, as the intra prediction mode of the current block, the intra prediction mode in the prediction direction of the current block, which is derived on the basis of a BDPCM direction flag.

    VIDEO DECODING METHOD USING RESIDUAL INFORMATION IN VIDEO CODING SYSTEM, AND APPARATUS THEREOF
    160.
    发明申请
    VIDEO DECODING METHOD USING RESIDUAL INFORMATION IN VIDEO CODING SYSTEM, AND APPARATUS THEREOF 有权

    公开(公告)号：US20240380910A1

    公开(公告)日：2024-11-14

    申请号：US18782189

    申请日：2024-07-24

    Applicant: LG Electronics Inc.

    Inventor： Sunmi YOO ,  Jungah CHOI ,  Seunghwan KIM

    IPC: H04N19/46 ,  H04N19/103 ,  H04N19/136 ,  H04N19/176

    Abstract: A video decoding method performed by a decoding apparatus, according to the present document, comprises the steps of: receiving residual information for a current block; deriving a context model for a sine flag of a current residual coefficient in a current sub-block of the current block; decoding the sine flag on the basis of the context model; deriving the current residual coefficient on the basis of the sine flag; deriving a residual sample on the basis of the current residual coefficient; and generating a reconstructed picture on the basis of the residual sample, wherein the context model for the sine flag is derived on the basis of a sine flag of a residual coefficient decoded before the current residual coefficient in the current sub-block.

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