公开(公告)号：US12160618B2

公开(公告)日：2024-12-03

申请号：US18127492

申请日：2023-03-28

Applicant: LG ELECTRONICS INC.

Inventor： Hendry Hendry ,  Seethal Paluri ,  Seunghwan Kim

IPC: H04N19/82 ,  H04N19/18

Abstract: According to an image coding method according to embodiments of the present document, information related to in-loop filtering may be efficiently signaled, and repetitive procedures for signaling subpicture-related information may be reduced.

公开(公告)号：US12160587B2

公开(公告)日：2024-12-03

申请号：US17778266

申请日：2020-12-29

Applicant: LG Electronics Inc.

Inventor： Hendry Hendry

IPC: H04N19/15 ,  H04N19/114 ,  H04N19/187 ,  H04N19/70

Abstract: A method by which a decoding device decodes an image, according to the present document, comprises the steps of: acquiring image information including decoded picture buffer (DPB) parameter information and an output layer set (OLS) DPB parameter index for a target OLS; deriving the DPB parameter information about the target OLS on the basis of the OLS DPB parameter index; updating a DPB on the basis of the DPB parameter information about the target OLS; and decoding the current picture on the basis of the updated DPB.

公开(公告)号：US12155816B2

公开(公告)日：2024-11-26

申请号：US17916371

申请日：2021-03-26

Applicant: LG ELECTRONICS INC.

Inventor： Hendry Hendry ,  Seung Hwan Kim ,  Seethal Paluri ,  Jie Zhao

IPC: H04N19/102 ,  H04N19/169 ,  H04N19/70

Abstract: An image encoding/decoding method and apparatus for signaling decoded picture buffer (DPB) related information and profile tier level (PTL) related information and a method of transmitting a bitstream are provided. The image decoding method according to the present disclosure may comprise obtaining first information indicating the number of one or more decoded picture buffer (DPB) parameter syntax structures in a video parameter set (VPS), obtaining the one or more DPB parameter syntax structures from the VPS based on the first information, obtaining second information between one or more multi-layer output layer sets (OLSs) and the one or more DPB parameter syntax structures from the VPS based on the first information, selecting a DPB parameter syntax structure that applies to a current OLS based on the second information, and processing the current OLS based on the selected DPB parameter syntax structure.

公开(公告)号：US12120329B2

公开(公告)日：2024-10-15

申请号：US18075822

申请日：2022-12-06

Applicant: LG ELECTRONICS INC.

Inventor： Hendry Hendry

IPC: H04N7/12 ,  G06T9/00 ,  H04N19/169 ,  H04N19/172 ,  H04N19/31

CPC classification number: H04N19/31 ,  G06T9/00 ,  H04N19/172 ,  H04N19/188

Abstract: According to embodiment(s) of the present document, multilayer-based coding can be performed. The multilayer-based coding can include a sub-bitstream extraction process. Inputs of the sub-bitstream extraction process can include a value related to a target OLS index and a value related to a highest temporal identifier.

公开(公告)号：US12120328B2

公开(公告)日：2024-10-15

申请号：US17855472

申请日：2022-06-30

Applicant: LG ELECTRONICS INC.

Inventor： Hendry Hendry ,  Jong Yeul Suh ,  Jin Won Lee ,  Seung Hwan Kim

IPC: H04N19/31 ,  H04N19/132 ,  H04N19/136 ,  H04N19/597 ,  H04N19/70

CPC classification number: H04N19/31 ,  H04N19/132 ,  H04N19/136 ,  H04N19/597

Abstract: A transmission device of point cloud data and method performed by the transmission device, and a reception device and a method performed by the reception device are provided. A method performed by a reception device of point cloud data comprises acquiring geometry-based point cloud compression (G-PCC) file including the point cloud data, wherein the G-PCC file includes information on a sample group in which samples in the G-PCC file are grouped based on one or more temporal levels and wherein the G-PCC file further includes information on the temporal levels, and extracting one or more samples belonging to a target temporal level from the samples in the G-PCC file based on the information on the sample group and the information on the temporal levels.

公开(公告)号：US12088846B2

公开(公告)日：2024-09-10

申请号：US17916360

申请日：2021-03-30

Applicant: LG ELECTRONICS INC.

Inventor： Hendry Hendry

IPC: H04N19/65 ,  H04N19/172 ,  H04N19/46 ,  H04N19/70

CPC classification number: H04N19/65 ,  H04N19/172 ,  H04N19/46 ,  H04N19/70

Abstract: According to the disclosure of the present document, a recovery point picture order count (POC) for a gradual decoding refresh (GDR) picture is derived on the basis of GDR-related information, and an output for pictures related to the GDR picture is determined on the basis of the recovery point POC. The recovery point DOC can be derived on the basis of a syntax element related to the recovery point POC.

公开(公告)号：US12069283B2

公开(公告)日：2024-08-20

申请号：US17578182

申请日：2022-01-18

Applicant: LG Electronics Inc.

Inventor： Hendry Hendry ,  Yongjoon Jeon ,  Chulkeun Kim ,  Jungsun Kim ,  Byeongmoon Jeon ,  Joonyoung Park

IPC: H04N19/44 ,  H04N19/105 ,  H04N19/157 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/463 ,  H04N19/523 ,  H04N19/58 ,  H04N19/587 ,  H04N19/70 ,  H04N19/513 ,  H04N19/573

CPC classification number: H04N19/44 ,  H04N19/105 ,  H04N19/157 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/463 ,  H04N19/523 ,  H04N19/58 ,  H04N19/587 ,  H04N19/70 ,  H04N19/513 ,  H04N19/573

Abstract: Disclosed is a video decoding method that decodes a bitstream, the method including receiving a picture parameter set (PPS) comprising at least one of first information indicating whether the same reference picture list is applied to slices comprised in a picture and second information indicating whether additional information on modification of the reference picture list is present, and deriving a construction of the reference picture list based on the PPS. Accordingly, there are provided a method and an apparatus for signaling by a picture whether the construction of the reference picture list is modified when constructing the reference picture list.

公开(公告)号：US12058335B2

公开(公告)日：2024-08-06

申请号：US17772942

申请日：2020-10-12

Applicant: LG ELECTRONICS INC.

Inventor： Hendry Hendry ,  Seunghwan Kim

IPC: H04N19/70 ,  H04N19/136 ,  H04N19/172 ,  H04N19/174 ,  H04N19/46

CPC classification number: H04N19/136 ,  H04N19/172 ,  H04N19/174 ,  H04N19/46

Abstract: An image decoding method according to the present document comprises the steps of: acquiring image information through a bitstream, the image information including entry point-related information; deriving at least one entry point in the current picture on the basis of the entry point-related information; and decoding the current picture on the basis of the at least one entry point, wherein the entry point-related information includes an entry point offset presence flag, offset length information, and entry point offset information, the entry point offset presence flag being related to at least one of the number of tiles in the current picture or the number of tile columns in the current picture. Through this method, the amount of data required to be signaled for video/image coding can be reduced, and coding efficiency can be increased.

公开(公告)号：US12034939B2

公开(公告)日：2024-07-09

申请号：US18213052

申请日：2023-06-22

Applicant: LG Electronics Inc.

Inventor： Hendry Hendry

IPC: H04N19/174 ,  H04N19/169 ,  H04N19/44 ,  H04N19/70

CPC classification number: H04N19/174 ,  H04N19/188 ,  H04N19/44 ,  H04N19/70

Abstract: An image decoding method performed by a decoding apparatus according to the present document comprises the steps of: acquiring a flag indicating whether a picture header (PH) network abstraction layer (NAL) unit exists; acquiring a PH on the basis of the flag; and decoding a current picture related to the PH on the basis of the PH.

公开(公告)号：US12034910B2

公开(公告)日：2024-07-09

申请号：US17352901

申请日：2021-06-21

Applicant: LG Electronics Inc.

Inventor： Jie Zhao ,  Seung Hwan Kim ,  Hendry Hendry

IPC: H04N19/103 ,  H04N19/136 ,  H04N19/186

CPC classification number: H04N19/103 ,  H04N19/136 ,  H04N19/186

Abstract: An image encoding/decoding method and apparatus for signaling an ACT or LMCS tool based on a color space and a method of transmitting a bitstream are provided. An image decoding may include determining a color space of a current image, determining whether to enable a predetermined decoding tool based on the color space, and decoding the current image depending on whether to enable the predetermined decoding tool.