知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

210 records (took 0.027 seconds)

    Image decoding method and device using residual information in image coding system
    45.
    发明授权
    Image decoding method and device using residual information in image coding system 有权

    公开(公告)号：US12028526B2

    公开(公告)日：2024-07-02

    申请号：US18142199

    申请日：2023-05-02

    Applicant: LG ELECTRONICS INC.

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

    IPC: H04N19/13 ,  H04N19/124 ,  H04N19/136 ,  H04N19/176 ,  H04N19/60

    CPC classification number: H04N19/13 ,  H04N19/124 ,  H04N19/136 ,  H04N19/176 ,  H04N19/60

    Abstract: An image decoding method includes receiving residual information including first size related information for a first residual coefficient and second size related information for a second residual coefficient, setting a Rice parameter of the first size related information and the second size related information as a specific value, deriving available binary values based on the Rice parameter, deriving binary values of the first size related information and the second size related information by decoding the first size related information and the second size related information, deriving values of the first size related information and the second size related information by comparing the binary values and the available binary values, deriving the first residual coefficient and the second residual coefficient based on the values, and reconstructing a current picture based on the first residual coefficient and the second residual coefficient.

    METHOD AND DEVICE FOR PROCESSING VIDEO SIGNAL FOR INTRA PREDICTION
    48.
    发明公开
    METHOD AND DEVICE FOR PROCESSING VIDEO SIGNAL FOR INTRA PREDICTION 审中-公开

    公开(公告)号：US20240179306A1

    公开(公告)日：2024-05-30

    申请号：US18432905

    申请日：2024-02-05

    Applicant: LG ELECTRONICS INC.

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

    IPC: H04N19/11 ,  H04N19/105 ,  H04N19/119 ,  H04N19/176 ,  H04N19/46 ,  H04N19/593

    CPC classification number: H04N19/11 ,  H04N19/105 ,  H04N19/119 ,  H04N19/176 ,  H04N19/46 ,  H04N19/593

    Abstract: Embodiments of the present specification provide a method and a device for processing a video signal for intra prediction. A method for decoding a video signal according an embodiment of the present disclosure includes: obtaining intra prediction information of a current block to which the intra prediction is applied, in which the intra prediction information includes a first flag indicating a predetermined first mode; determining an intra prediction mode of the current block based on the intra prediction information, wherein when the first flag corresponds to a first value, the first mode is determined as the intra prediction mode and when the first flag corresponds to a second value, one of a plurality of candidate modes is determined as the intra prediction mode; and generating a prediction sample of the current block based on the intra prediction mode and a reference sample in a current picture. A separate flag indicating whether to use a primarily used specific mode is used to reduce a data amount for transmission of the intra prediction mode and a processing time of information of the intra prediction.

    Intra prediction method on basis of MPM list and apparatus therefor
    49.
    发明授权
    Intra prediction method on basis of MPM list and apparatus therefor 有权

    公开(公告)号：US11997256B2

    公开(公告)日：2024-05-28

    申请号：US17442912

    申请日：2020-03-23

    Applicant: LG ELECTRONICS INC.

    Inventor： Ling Li ,  Jaehyun Lim ,  Jin Heo ,  Jangwon 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.

Patent Agency Ranking