公开(公告)号：US12003699B2

公开(公告)日：2024-06-04

申请号：US17343258

申请日：2021-06-09

申请人： HUMAX CO., LTD.

发明人： Geonjung Ko ,  Dongcheol Kim ,  Juhyung Son ,  Jaehong Jung ,  Jinsam Kwak

IPC分类号： H04N19/105 ,  H04N19/174 ,  H04N19/176 ,  H04N19/186 ,  H04N19/593 ,  H04N19/96

CPC分类号： H04N19/105 ,  H04N19/174 ,  H04N19/176 ,  H04N19/186 ,  H04N19/593 ,  H04N19/96

摘要： A video signal processing method comprises: determining a prediction mode of a current block; when the prediction mode of the current block is an Intra Block Copy (IBC) prediction mode, decoding the current block, based on the IBC prediction mode and a reference block included in a first reference block set; and when the prediction mode of the current block is an inter prediction mode, decoding the current block, based on the inter prediction mode and a reference block included in a second reference block set.

公开(公告)号：US11191093B2

公开(公告)日：2021-11-30

申请号：US16347579

申请日：2017-11-08

申请人： HUMAX CO., LTD. ,  WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC.

发明人： Juhyung Son ,  Jinsam Kwak ,  Bonho Koo ,  Kiwon Kang

IPC分类号： H04W72/12 ,  H04L1/08 ,  H04L1/18

摘要： Provided is a base wireless communication terminal that communicates with a Long Range (LR) wireless communication terminal supporting LR wireless communication. The base wireless communication terminal includes a transceiver and a processor. The processor is configured to set length information included in a non-LR preamble, which is a preamble for a non-LR wireless communication terminal that does not support LR wireless communication, to be longer than a length from a predetermined point in a Physical layer Protocol Data Unit (PPDU) to an end point of the PPDU, and transmits the PPDU including the non-LR preamble to the LR wireless communication terminal using the transceiver. In this case, the length information is information for indicating a length from a predetermined point in the PPDU to an end point of the PPDU.

公开(公告)号：US11973986B2

公开(公告)日：2024-04-30

申请号：US18164460

申请日：2023-02-03

申请人： HUMAX CO., LTD.

发明人： Jaehong Jung ,  Dongcheol Kim ,  Juhyung Son ,  Geonjung Ko ,  Jinsam Kwak

IPC分类号： H04N19/119 ,  H04N19/159 ,  H04N19/176 ,  H04N19/61 ,  H04N19/70

CPC分类号： H04N19/619 ,  H04N19/119 ,  H04N19/159 ,  H04N19/176 ,  H04N19/70

摘要： A video signal processing device includes a processor. The processor is configured to obtain a secondary transform kernel for a current block based on an intra prediction mode of the current block to which a secondary transform is applied, to obtain a secondary inverse transformed block by performing a secondary inverse transform on a top-left specific region of the current block using the secondary transform kernel, wherein the secondary inverse transform is an inverse transform of the secondary transform, and the secondary transform is a low frequency non-separable transform, to obtain a residual block of the current block by performing a primary inverse transform on the secondary inverse transformed block, wherein one or more coefficients of the top-left specific region of the current block are derived in a preset scan order and the preset scan order is a 4×4 up-right diagonal scan order regardless of a size of the current block.

公开(公告)号：US11166040B2

公开(公告)日：2021-11-02

申请号：US17113215

申请日：2020-12-07

申请人： WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC. ,  HUMAX CO., LTD.

发明人： Geonjung Ko ,  Dongcheol Kim ,  Juhyung Son ,  Jaehong Jung ,  Jinsam Kwak

IPC分类号： H04N19/513 ,  H04N19/53 ,  H04N19/57

摘要： An apparatus for decoding a video signal, the apparatus comprising a processor, wherein the processor is configured to: configure a Motion Vector Prediction (MVP) candidate list for motion compensation of a current block through one of a first method and a second method, acquire a motion vector predictor of the current block, based on the configured MVP candidate list, acquire a motion vector differential value indicating a difference between a motion vector of the current block and the motion vector predictor, modify the motion vector differential value, based on a resolution of the motion vector differential value of the current block, acquire the motion vector of the current block, based on the motion vector predictor and the modified motion vector differential value, and reconstruct the current block, based on the acquired motion vector.

公开(公告)号：US12034945B2

公开(公告)日：2024-07-09

申请号：US17655354

申请日：2022-03-17

申请人： HUMAX CO., LTD.

发明人： Jaehong Jung ,  Juhyung Son ,  Dongcheol Kim ,  Geonjung Ko ,  Jinsam Kwak

IPC分类号： H04N19/00 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/30 ,  H04N19/46 ,  H04N19/96

CPC分类号： H04N19/30 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/46 ,  H04N19/96

摘要： The present disclosure relates to a processing method of a video signal, the processing method comprising the steps of: scaling a transform coefficient for a current block on the basis of an intermediate scaling factor array; when the flag indicates that a low frequency non-separable transform is applied to the current block, obtaining a residual for the current block by applying an inverse transform of a non-separable transform and an inverse transform of a primary transform on the scaled transform coefficient, wherein the primary transform is a transform applied to a residual signal of a spatial domain before the low frequency non-separable transform; and reconstructing the current block on the basis of the residual and a predictor of the current block.

公开(公告)号：US11616984B2

公开(公告)日：2023-03-28

申请号：US17348227

申请日：2021-06-15

申请人： HUMAX CO., LTD.

发明人： Jaehong Jung ,  Dongcheol Kim ,  Juhyung Son ,  Geonjung Ko ,  Jinsam Kwak

IPC分类号： H04N19/119 ,  H04N19/61 ,  H04N19/159 ,  H04N19/176 ,  H04N19/70

摘要： A video signal processing method may include: a step for determining whether a secondary inverse transform is applied to the current block; a step for deriving a secondary transform kernel set which is applied to the current block from among predefined secondary transform kernel sets on the basis of an intra prediction mode of the current block when the secondary inverse transform is applied to the current block; a step for selecting a secondary transform kernel, which is applied to the current block, in the selected secondary transform kernel set; a step for generating a secondary inverse transformed block by performing a secondary inverse transform on a specified upper-left region of the current block by using the secondary transform kernel; and a step for generating a residual block of the current block by performing a primary inverse transform on the secondary inverse transformed block.

公开(公告)号：US11575927B2

公开(公告)日：2023-02-07

申请号：US17314373

申请日：2021-05-07

申请人： HUMAX CO., LTD.

发明人： Jaehong Jung ,  Dongcheol Kim ,  Geonjung Ko ,  Juhyung Son ,  Jinsam Kwak

IPC分类号： H04N19/513 ,  H04N19/105 ,  H04N19/132 ,  H04N19/137 ,  H04N19/176

摘要： Disclosed is a video signal processing method comprising the steps of: acquiring a merge index which indicates a candidate for prediction of a current block among a plurality of candidates for the prediction of the current block, which are included in a merge candidate list; acquiring motion information of the current block on the basis of motion information corresponding to the candidate indicated by the merge index; when the motion information of the current block includes a plurality of motion vectors corresponding to a list of different reference pictures, comparing picture order count (POC) differences between each of the reference pictures corresponding to the plurality of motion vectors and the current picture including the current block; correcting the plurality of motion vectors on the basis of a result of the comparison; and reconstructing the current block on the basis of the plurality of corrected motion vectors.

公开(公告)号：US11539973B2

公开(公告)日：2022-12-27

申请号：US17317629

申请日：2021-05-11

申请人： HUMAX CO., LTD.

发明人： Jaehong Jung ,  Juhyung Son ,  Dongcheol Kim ,  Geonjung Ko ,  Jinsam Kwak

IPC分类号： H04N19/119 ,  H04N19/46 ,  H04N19/159 ,  H04N19/176 ,  H04N19/60

摘要： A method for processing a video signal comprises the steps of: obtaining, from the video signal, an intra sub-partitions (ISP) mode flag indicating whether the ISP mode is applied to a current block; when the ISP mode is applied to the current block, obtaining, from the video signal, an ISP partitioning flag indicating a partitioning direction of the current block; partitioning the current block into a plurality of transform blocks on the basis of the partitioning direction; generating residual blocks of the transform blocks by performing an inverse transformation on each of the transform blocks; and restoring the current block on the basis of the residual blocks.

公开(公告)号：US11284108B2

公开(公告)日：2022-03-22

申请号：US16758046

申请日：2018-10-24

申请人： WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC. ,  HUMAX CO., LTD.

发明人： Geonjung Ko ,  Dongcheol Kim ,  Juhyung Son ,  Jaehong Jung ,  Jinsam Kwak

IPC分类号： H04N19/11 ,  H04N19/593 ,  H04N19/136 ,  H04N19/176

摘要： Disclosed are a video signal processing method and apparatus for encoding or decoding a video signal. In more detail, the video signal processing method includes receiving intra prediction mode information for a current block, wherein the intra prediction mode information indicates one of a plurality of intra prediction modes configuring an intra prediction mode set; and decoding the current block based on the received intra prediction mode information, wherein the intra prediction mode set comprises a plurality of angle modes, and the plurality of angle modes comprises a basic angle mode and an extended angle mode, wherein the extended angle mode is signaled based on the basic angle mode.

公开(公告)号：US20210385441A1

公开(公告)日：2021-12-09

申请号：US17412212

申请日：2021-08-25

申请人： WILUS INSTITUTE OF STANDARDS AND TECHNOLOGY INC. ,  HUMAX CO., LTD.

发明人： Geonjung KO ,  Juhyung Son ,  Dongcheol Kim ,  Jaehong Jung ,  Jinsam Kwak

IPC分类号： H04N19/105 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176

摘要： Disclosed is a video signal processing method and device for encoding or decoding a video signal. More specifically, disclosed are a video signal processing method and a video signal processing device for performing the method, the method comprising: obtaining reference line information indicating a reference line for intra prediction of a current block among a plurality of reference lines comprising neighboring samples of the current block; determining, on the basis of the reference line information, an intra prediction mode for the current block among a plurality of intra prediction modes constituting an intra prediction mode set; and decoding the current block on the basis of a plurality of reference samples on the reference line according to the reference line information and the determined intra prediction mode, wherein the plurality of reference lines include a first reference line comprising neighboring samples on a line adjacent to the boundary of the current block and a second reference line comprising neighboring samples on a line spaced a distance corresponding to a predetermined number of samples apart from the boundary of the current block.