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    Method and apparatus for signaling image information, and decoding method and apparatus using same
    41.
    发明授权
    Method and apparatus for signaling image information, and decoding method and apparatus using same 有权
    用于信令图像信息的方法和装置，以及使用其的解码方法和装置

    公开(公告)号：US09571834B2

    公开(公告)日：2017-02-14

    申请号：US14346879

    申请日：2012-09-21

    Applicant: LG Electronics Inc.

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

    IPC: H04N19/58 ,  H04N19/577 ,  H04N19/70 ,  H04N19/423 ,  H04N19/573 ,  H04N19/503 ,  H04N19/46

    CPC classification number: H04N19/577 ,  H04N19/423 ,  H04N19/44 ,  H04N19/46 ,  H04N19/503 ,  H04N19/573 ,  H04N19/70

    Abstract: The present invention relates to a method for signaling image information and to a decoding method using same. The method for signaling image information according to the present invention comprises: a step of performing inter-prediction for a current picture; and a step of signaling information including the result of said inter-prediction and reference picture information indicating reference pictures usable in said inter prediction, wherein said reference picture information contains pieces of picture order count (POC) information of said usable reference pictures. The POC information of said usable reference pictures in said reference picture information is configured such that POCs for the pictures existing before said current picture in terms of a POC sequence are located at the front, and POCs for the pictures existing after said current picture in terms of a POC sequence are located following the POCs located at the front.

    Abstract translation: 本发明涉及用于信令图像信息的方法和使用其的解码方法。 根据本发明的用于信令图像信息的方法包括：对当前图像执行帧间预测的步骤; 以及包括所述帧间预测的结果的信令信息信号和指示在所述帧间预测中可用的参考图像的参考图像信息的步骤，其中所述参考图像信息包含所述可用参考图像的多个图像顺序计数（POC）信息。 所述参考图像信息中的所述可用参考图像的POC信息被配置为使得根据POC序列在所述当前图像之前存在的图像的POC位于前面，并且在所述当前图像之后存在的图像的POC 的POC序列位于位于前面的POC之后。

    INTER-LAYER PREDICTION METHOD AND ENCODING DEVICE AND DECODING DEVICE USING SAME
    43.
    发明申请
    INTER-LAYER PREDICTION METHOD AND ENCODING DEVICE AND DECODING DEVICE USING SAME 有权
    层间预测方法和编码设备和使用相同的解码设备

    公开(公告)号：US20150103896A1

    公开(公告)日：2015-04-16

    申请号：US14386273

    申请日：2013-03-29

    Applicant: LG ELECTRONICS INC.

    Inventor： Chulkeun Kim ,  Byeongmoon Jeon ,  Seungwook Park ,  Jaehyun Lim ,  Yongjoon Jeon ,  Joonyoung Park ,  Naeri Park

    IPC: H04N19/503

    CPC classification number: H04N19/503 ,  H04N19/105 ,  H04N19/157 ,  H04N19/176 ,  H04N19/187 ,  H04N19/33 ,  H04N19/52 ,  H04N19/59

    Abstract: The present invention relates to an inter-layer prediction method, and an encoder and a decoder using the same, the inter-layer prediction method including specifying a reference block in a reference layer and predicting a current block in a current layer using information on the reference block, wherein the specifying of the reference block includes specifying the reference block on the basis of a reference position which is a position in the reference layer corresponding to a current position in the current layer for specifying the current block.

    Abstract translation: 本发明涉及层间预测方法，以及使用该层间预测方法的编码器和解码器，所述层间预测方法包括在参考层中指定参考块并且使用关于所述参考层的信息来预测当前层中的当前块 参考块，其中所述参考块的指定包括基于参考位置来指定所述参考块，所述参考位置是与当前层中当前位置相对应的用于指定当前块的参考层中的位置。

    METHOD AND DEVICE FOR CODING IMAGE ON BASIS OF INTER PREDICTION
    46.
    发明申请
    METHOD AND DEVICE FOR CODING IMAGE ON BASIS OF INTER PREDICTION 有权

    公开(公告)号：US20250106390A1

    公开(公告)日：2025-03-27

    申请号：US18904694

    申请日：2024-10-02

    Applicant: LG ELECTRONICS INC.

    Inventor： Hyeongmoon Jang ,  Naeri Park ,  Seunghwan Kim

    IPC: H04N19/109 ,  H04N19/122 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/46 ,  H04N19/503 ,  H04N19/70

    Abstract: A decoding method performed by a decoding device, according to the present document, may comprise the steps of: acquiring, from a bitstream, at least one of a combined inter-picture merge and intra-picture prediction (CIIP) enable flag and a coding unit (CU) skip flag indicating whether a skip mode is applied to a current block; acquiring, from the bitstream, a regular merge flag on the basis that a condition based on the current block size, and at least one of a condition based on the CIIP enable flag and a condition based on the CU skip flag are satisfied; generating prediction samples of the current block on the basis of the regular merge flag; and generating restoration samples on the basis of the prediction samples.

    Method and device for removing overlapping signaling in video/image coding system
    47.
    发明授权
    Method and device for removing overlapping signaling in video/image coding system 有权

    公开(公告)号：US12166970B2

    公开(公告)日：2024-12-10

    申请号：US18206411

    申请日：2023-06-06

    Applicant: LG ELECTRONICS INC.

    Inventor： Hyeongmoon Jang ,  Naeri Park ,  Seunghwan Kim

    IPC: H04N19/105 ,  H04N19/119 ,  H04N19/132 ,  H04N19/176 ,  H04N19/50 ,  H04N19/70

    Abstract: A decoding method performed by a decoding device, according to the present document, may comprise the steps of: acquiring a sequence parameter set from a bitstream; acquiring a combined inter-picture merge and intra-picture prediction (CIIP) enable flag from the sequence parameter set; determining, on the basis of the CIIP enable flag and the size of a current block, whether a regular merge flag is included in the bitstream; parsing the regular merge flag in the bitstream on the basis that a condition based on the CIIP enable flag and a condition based on the size of the current block are satisfied; generating prediction samples of the current block on the basis of the regular merge flag; and generating a restoration picture on the basis of the prediction samples.

    Method and apparatus for inter prediction in video coding system
    48.
    发明授权
    Method and apparatus for inter prediction in video coding system 有权

    公开(公告)号：US12149728B2

    公开(公告)日：2024-11-19

    申请号：US18224852

    申请日：2023-07-21

    Applicant: LG Electronics Inc.

    Inventor： Naeri Park ,  Jaehyun Lim ,  Junghak Nam

    IPC: H04N19/513 ,  H04N19/103 ,  H04N19/119 ,  H04N19/176 ,  H04N19/44 ,  H04N19/537 ,  H04N21/235

    Abstract: A video decoding method performed by a decoding apparatus comprises deriving control points (CPs) for the current block; obtaining motion vectors for the CPs; deriving a motion vector of a sub-block or a sample unit in the current block on the basis of the obtained motion vectors; deriving a prediction sample for the current block on the basis of the derived motion vector; and generating a reconstruction sample on the basis of the prediction sample. The method enables effective performance of inter prediction through the motion vectors (transformation prediction), not only when an image in the current block is moved in a plane, but also when the image in the current block is rotated, zoomed in, zoomed out, or transformed into a parallelogram. Accordingly, the amount of data for the residual signal for the current block can be eliminated or reduced, and the overall coding efficiency can be improved.

    Inter prediction-based image coding method and device
    49.
    发明授权
    Inter prediction-based image coding method and device 有权

    公开(公告)号：US12137213B2

    公开(公告)日：2024-11-05

    申请号：US18231129

    申请日：2023-08-07

    Applicant: LG ELECTRONICS INC.

    Inventor： Naeri Park ,  Junghak Nam ,  Hyeongmoon Jang

    IPC: H04N19/00 ,  H04N19/105 ,  H04N19/137 ,  H04N19/159 ,  H04N19/176

    Abstract: An image decoding method according to the present document may comprise: a step for deriving an inter prediction mode from encoded information; a step for constructing reference pictures lists; a step for deriving motion information including reference picture indices for symmetric motion vector differences (SMVD) on the basis of reference pictures included in the reference picture lists; and a step for generating prediction samples on the basis of the motion information. The reference picture indices for SMVD may be derived on the basis of short-term reference pictures included in the reference picture lists.

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