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    Intra prediction mode based image processing method, and apparatus therefor
    4.
    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
    5.
    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
    6.
    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.

    Image encoding/decoding method and device for performing feature quantization/ de-quantization, and recording medium for storing bitstream
    9.
    发明授权
    Image encoding/decoding method and device for performing feature quantization/ de-quantization, and recording medium for storing bitstream 有权

    公开(公告)号：US12231637B2

    公开(公告)日：2025-02-18

    申请号：US17801159

    申请日：2021-02-25

    Applicant: LG ELECTRONICS INC.

    Inventor： Chul Keun Kim ,  Eunyong Son ,  Yongjoon Jeon

    IPC: H04N19/124 ,  H04N19/169

    Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method may comprise obtaining, from a bitstream, a feature set extracted from an input image using an artificial neural network-based feature extraction method, first information on importance of each of a plurality of channels included in the feature set and second information on a quantization method of the feature set, decoding the feature set, the first information and the second information, and dequantizing the decoded feature set based on the decoded first information and the decoded second information. The second information may comprise the number of quantization bits of each of the plurality of channels, and the number of quantization bits may be determined based on the importance of each of the plurality of channels.

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