公开(公告)号：US11936894B2

公开(公告)日：2024-03-19

申请号：US17737795

申请日：2022-05-05

Applicant: LG ELECTRONICS INC.

Inventor： Seethal Paluri ,  Hendry Hendry ,  Seunghwan Kim ,  Jie Zhao

IPC: H04N19/46 ,  H04N19/132 ,  H04N19/159 ,  H04N19/174 ,  H04N19/70 ,  H04N19/96

CPC classification number: H04N19/46 ,  H04N19/132 ,  H04N19/159 ,  H04N19/174 ,  H04N19/70 ,  H04N19/96

Abstract: A video decoding method can comprise the steps of: acquiring image information from a bitstream, the image information including a picture header related to a current picture, and the current picture including a plurality of slices; parsing, from the picture header, a first flag indicating whether information necessary for an inter prediction operation is in the picture header and/or a second flag indicating whether information necessary for an intra prediction operation is in the picture header; parsing, from the picture header, the information necessary for the inter prediction operation and/or the information necessary for the intra prediction operation based on the first flag and/or the second flag; and generating prediction samples based on the information necessary for the inter prediction operation and/or the information necessary for the intra prediction operation.

公开(公告)号：US11902536B2

公开(公告)日：2024-02-13

申请号：US17579108

申请日：2022-01-19

Applicant: LG ELECTRONICS INC.

Inventor： Jane Zhao ,  Seethal Paluri ,  Seunghwan Kim

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

CPC classification number: H04N19/159 ,  H04N19/105 ,  H04N19/137 ,  H04N19/176

Abstract: The disclosure discloses a method for processing a video signal and an apparatus therefor. Specifically, a method of processing a video signal based on inter prediction includes constructing a first merge candidate list of a current block using a spatial merge candidate and temporal merge candidate of the current block, constructing a second merge candidate list by adding a history-based merge candidate indicating motion information of a block coded prior to the current block to the first merge candidate list, obtaining a merge index indicating a merge candidate applied to the current block within the second merge candidate list, and generating a prediction block of the current block using motion information of a merge candidate indicated by the merge index. The history-based merge candidate may be added to the first merge candidate list if the history-based merge candidate has motion information not overlapping motion information of a pre-defined merge candidate among merge candidates included in the first merge candidate list.

公开(公告)号：US11889111B2

公开(公告)日：2024-01-30

申请号：US17435656

申请日：2020-03-05

Applicant: LG ELECTRONICS INC.

Inventor： Seethal Paluri ,  Seunghwan Kim ,  Jie Zhao

IPC: H04N19/593 ,  H04N19/11 ,  H04N19/117 ,  H04N19/132 ,  H04N19/176 ,  H04N19/186 ,  H04N19/30 ,  H04N19/85

CPC classification number: H04N19/593 ,  H04N19/11 ,  H04N19/117 ,  H04N19/132 ,  H04N19/176 ,  H04N19/186 ,  H04N19/30 ,  H04N19/85

Abstract: According to the disclosure of the present document, reshaper data and/or an ALF parameter can be signaled adaptively from a parameter set, thereby reducing the amount of data to be signaled for video/image coding and improving coding efficiency.

公开(公告)号：US11843780B2

公开(公告)日：2023-12-12

申请号：US17736610

申请日：2022-05-04

Applicant: LG ELECTRONICS INC.

Inventor： Seethal Paluri ,  Hendry Hendry ,  Seunghwan Kim ,  Jie Zhao

IPC: H04N19/70 ,  H04N19/176 ,  H04N19/174 ,  H04N19/159 ,  H04N19/132 ,  H04N19/46

CPC classification number: H04N19/132 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/46 ,  H04N19/70

Abstract: A video decoding method performed by a video decoding device according to the present document comprises the steps of: acquiring image information from a bitstream, the image information including a picture header associated with the current picture including a plurality of slices; parsing, from the picture header, a first flag indicating whether information necessary for an inter-prediction operation for a decoding process is present in the picture header; parsing, from the picture header, a second flag indicating whether information necessary for an intra-prediction operation for the decoding process is present in the picture header; and generating prediction samples by performing at least one of intra-prediction or inter-prediction for the slices in the current picture on the basis of the first flag or the second flag.

公开(公告)号：US11818344B2

公开(公告)日：2023-11-14

申请号：US17570284

申请日：2022-01-06

Applicant: LG ELECTRONICS INC.

Inventor： Seethal Paluri ,  Seunghwan Kim

IPC: H04N19/117 ,  H04N19/82 ,  H04N19/132 ,  H04N19/46 ,  H04N19/186 ,  H04N19/176 ,  H04N19/13

CPC classification number: H04N19/117 ,  H04N19/13 ,  H04N19/132 ,  H04N19/176 ,  H04N19/186 ,  H04N19/46 ,  H04N19/82

Abstract: An image decoding method, according to the present disclosure, enables: acquiring, from a bitstream, image information including prediction mode information and adaptive loop filter (ALF) information including alternative filter information for a chroma component of a current block; deriving prediction samples for the current block on the basis of the prediction mode information; generating reconstructed samples on the basis of the prediction samples; and generating modified reconstructed samples for the chroma component of the current block on the basis of the alternative filter information.

公开(公告)号：US11758141B2

公开(公告)日：2023-09-12

申请号：US17400883

申请日：2021-08-12

Applicant: LG ELECTRONICS INC.

Inventor： Seethal Paluri ,  Seunghwan Kim ,  Jie Zhao

IPC: H04N19/132 ,  H04N19/117 ,  H04N19/176 ,  H04N19/169 ,  H04N19/46 ,  H04N19/82

CPC classification number: H04N19/132 ,  H04N19/117 ,  H04N19/176 ,  H04N19/188 ,  H04N19/46 ,  H04N19/82

Abstract: According to the present disclosure, ALF parameters and/or LMCS parameters can be hierarchically signaled, which enables a reduction in the amount of data to be signaled for video/image coding and an increase in the coding efficiency.

公开(公告)号：US11743469B2

公开(公告)日：2023-08-29

申请号：US17939621

申请日：2022-09-07

Applicant: LG ELECTRONICS INC.

Inventor： Hendry Hendry ,  Seung Hwan Kim ,  Seethal Paluri

IPC: H04N7/12 ,  H04N19/136 ,  H04N19/172 ,  H04N19/174

CPC classification number: H04N19/136 ,  H04N19/172 ,  H04N19/174

Abstract: Disclosed herein are an image encoding/decoding method and apparatus. An image decoding method performed by an image encoding apparatus may include acquiring size information indicating a size of a current slice corresponding to at least a portion of a current picture from a bitstream and determining the size of the current slice based on the size information.

公开(公告)号：US11743468B2

公开(公告)日：2023-08-29

申请号：US17745719

申请日：2022-05-16

Applicant: LG ELECTRONICS INC.

Inventor： Hendry Hendry ,  Seethal Paluri ,  Seunghwan Kim

IPC: H04N19/132 ,  H04N19/176 ,  H04N19/46 ,  H04N19/82 ,  H04N19/117 ,  H04N19/70

CPC classification number: H04N19/132 ,  H04N19/117 ,  H04N19/176 ,  H04N19/46 ,  H04N19/82 ,  H04N19/70

Abstract: According to embodiments of the present document, information for carrying out in-loop filtering across virtual boundaries can be efficiently signaled. For example, in-loop filtering can be carried out on the basis of signaling of information which is related to whether in-loop filtering across virtual boundaries is enabled or not.

公开(公告)号：US11716484B2

公开(公告)日：2023-08-01

申请号：US17839118

申请日：2022-06-13

Applicant: LG ELECTRONICS INC.

Inventor： Seethal Paluri ,  Hendry Hendry ,  Jie Zhao ,  Seunghwan Kim

IPC: H04N19/105 ,  H04N19/51 ,  H04N19/109 ,  H04N19/132 ,  H04N19/137 ,  H04N19/159 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/70

CPC classification number: H04N19/51 ,  H04N19/105 ,  H04N19/109 ,  H04N19/132 ,  H04N19/137 ,  H04N19/159 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/70

Abstract: A video decoding method performed by a video decoding apparatus, according to the present document, comprises the steps of: parsing a flag for weighted prediction from a bitstream; parsing a prediction weighted table syntax from the bitstream on the basis of the flag; generating prediction samples by performing weighted prediction on a current block within a current picture on the basis of the prediction weighted table syntax; and generating reconstructed samples for the current block on the basis of the prediction samples, wherein the prediction weighted table syntax may be parsed from a picture header or slice header of the bitstream on the basis of a value of the flag.

公开(公告)号：US11716483B2

公开(公告)日：2023-08-01

申请号：US17695383

申请日：2022-03-15

Applicant: LG ELECTRONICS INC.

Inventor： Seethal Paluri ,  Seung Hwan Kim ,  Jie Zhao

IPC: H04N11/02 ,  H04N19/503 ,  H04N19/176 ,  H04N19/169 ,  H04N19/70

CPC classification number: H04N19/503 ,  H04N19/176 ,  H04N19/188 ,  H04N19/70

Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method performed by an image decoding apparatus may comprise parsing weight information specifying a weight for a reference sample from a bitstream according to a weight parameter syntax structure, and decoding a current block by performing inter prediction based on the weight information. The parsing according to the weight parameter syntax structure may comprise obtaining weight number information specifying the number of weight information obtained from the bitstream according to the weight parameter syntax structure and obtaining weight information from the weight parameter syntax structure based on the weight number information.