公开(公告)号：US20250063205A1

公开(公告)日：2025-02-20

申请号：US18818451

申请日：2024-08-28

Applicant: LG ELECTRONICS INC.

Inventor： Hyeong Moon JANG ,  Seethal PALURI ,  Hendry HENDRY ,  Jung Hak NAM

IPC: H04N19/82 ,  H04N19/117 ,  H04N19/174 ,  H04N19/176 ,  H04N19/46 ,  H04N19/86

Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method performed by an image decoding apparatus comprises decoding a first flag specifying whether in-loop filtering is able to be performed across a boundary of a subpicture from a bitstream and performing the in-loop filtering on a boundary of a current block, based on the first flag. Based on the boundary of the current block being a boundary of a current subpicture including the current block, the in-loop filtering on the boundary of the current block is not performed, based on the first flag for the current subpicture specifying that the in-loop filtering is not able to be performed across the boundary of the current subpicture or the first flag for an adjacent subpicture adjacent to the boundary of the current block specifying that the in-loop filtering is not able to be performed across the boundary of the adjacent subpicture.

公开(公告)号：US20250039390A1

公开(公告)日：2025-01-30

申请号：US18915219

申请日：2024-10-14

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY ,  Seethal PALURI ,  Seunghwan KIM

IPC: H04N19/132 ,  H04N19/172 ,  H04N19/176 ,  H04N19/46 ,  H04N19/82

Abstract: An image decoding method according to embodiments of the present document may comprise the steps of: acquiring, via a bitstream, image information including residual information; generating reconstruction samples on the basis of the residual information; and performing an in-loop filtering procedure for the reconstruction samples so as to generate modified reconstruction samples. The step of generating of the modified reconstruction samples may comprise a step of determining whether the in-loop filtering procedure is performed across virtual boundaries. In an example, wherein the image information includes an SPS, and on the basis of whether reference picture resampling is available, whether the SPS includes additional virtual boundary-related information may be determined.

公开(公告)号：US20240406403A1

公开(公告)日：2024-12-05

申请号：US18695225

申请日：2022-09-30

Applicant: LG Electronics Inc.

Inventor： Seethal PALURI ,  Seunghwan KIM

IPC: H04N19/137 ,  H04N19/132 ,  H04N19/176

Abstract: An image decoding method performed by a decoding device is provided. The method comprises the steps of: deriving a motion vector of a current block; deriving a refined motion vector regarding the current block by applying decoder-side motion vector refinement (DMVR) to the motion vector; deriving prediction samples regarding the current block on the basis of the refined motion vector; and generating reconstruction samples regarding the current block on the basis of the prediction samples, wherein the refined motion vector is derived on the basis of a search end condition of the decoder-side motion vector refinement.

公开(公告)号：US20240388715A1

公开(公告)日：2024-11-21

申请号：US18786915

申请日：2024-07-29

Applicant: LG ELECTRONICS INC.

Inventor： Seethal PALURI ,  Seunghwan KIM ,  Jie ZHAO

IPC: H04N19/132 ,  H04N19/117 ,  H04N19/169 ,  H04N19/176 ,  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：US20240236368A9

公开(公告)日：2024-07-11

申请号：US18278758

申请日：2022-02-24

Applicant: LG Electronics Inc.

Inventor： Seunghwan KIM ,  Seethal PALURI ,  Jie ZHAO

IPC: H04N19/593 ,  H04N19/11 ,  H04N19/119 ,  H04N19/132 ,  H04N19/136 ,  H04N19/176

CPC classification number: H04N19/593 ,  H04N19/11 ,  H04N19/119 ,  H04N19/132 ,  H04N19/136 ,  H04N19/176

Abstract: According to one embodiment of the present document, a method by which a decoding device decodes an image is provided. The method comprises the steps of: acquiring, from a bitstream, image information including decoder side intra mode derivation (DIMD)-related information; determining whether a DIMD mode is applied to the current block on the basis of the DIMD-related information; deriving an intra prediction mode for the current block on the basis of the determined result; and generating prediction samples for the current block on the basis of the intra prediction mode.

公开(公告)号：US20240205424A1

公开(公告)日：2024-06-20

申请号：US17909943

申请日：2021-03-05

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY ,  Seethal PALURI ,  Seunghwan KIM ,  Jie ZHAO

IPC: H04N19/174 ,  H04N19/119 ,  H04N19/46 ,  H04N19/96

CPC classification number: H04N19/174 ,  H04N19/119 ,  H04N19/46 ,  H04N19/96

Abstract: According to a disclosure of the present document, information/parameter related to splitting of a picture can be signaled on the basis of a no-picture partition flag, information related to a tile, and information related to a slice, unnecessary redundant signaling can be removed accordingly, and the number of bits assigned to the signaling can be reduced, thereby deriving an effect of increasing an overall coding efficiency.

公开(公告)号：US20240163453A1

公开(公告)日：2024-05-16

申请号：US18403388

申请日：2024-01-03

Applicant: LG ELECTRONICS INC.

Inventor： Jane ZHAO ,  Seethal PALURI ,  Seunghwan KIM

IPC: H04N19/159 ,  H04N19/105 ,  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：US20240146919A1

公开(公告)日：2024-05-02

申请号：US18407985

申请日：2024-01-09

Applicant: LG ELECTRONICS INC.

Inventor： Seethal PALURI ,  Seunghwan KIM

IPC: H04N19/117 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/82

CPC classification number: H04N19/117 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/82

Abstract: According to the disclosure of the present document, information regarding ALF filter coefficients may be encoded/decoded by fixed order-based exponential golomb coding. In addition, information regarding a fixed filter in ALF may be binarized by fixed-length coding. Accordingly, signaling efficiency can be increased, and coding complexity can be decreased.

公开(公告)号：US20240129475A1

公开(公告)日：2024-04-18

申请号：US18399123

申请日：2023-12-28

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY ,  Seethal PALURI ,  Seunghwan KIM

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

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

Abstract: A method by which a video decoding device decodes a video, according to the present document, can comprise the steps of: parsing, from a bitstream, number information related to the number of slices of which the height within a tile of a current picture is explicitly signaled; parsing, from the bitstream, on the basis of the number information, height information related to the height of the slices of which the height is explicitly signaled; deriving the number of slices in the tile on the basis of the number information and the height information; generating prediction samples by predicting the current block of the current picture on the basis of the slices within the tile; generating reconstructed samples on the basis of the prediction samples; and generating a reconstructed picture for the current picture on the basis of the reconstructed samples.

公开(公告)号：US20240080447A1

公开(公告)日：2024-03-07

申请号：US18381446

申请日：2023-10-18

Applicant: LG ELECTRONICS INC.

Inventor： Seethal PALURI ,  Hendry HENDRY ,  Seunghwan KIM ,  Jie ZHAO

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

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.