公开(公告)号：US20160198192A1

公开(公告)日：2016-07-07

申请号：US15070832

申请日：2016-03-15

Applicant: LG Electronics Inc.

Inventor： Jaehyun LIM ,  Seungwook PARK ,  Yongjoon JEON ,  Jungsun KIM ,  Hendry HENDRY ,  Byeongmoon JEON ,  Joonyoung PARK ,  Chulkeun KIM ,  Naeri PARK

IPC: H04N19/593 ,  H04N19/159 ,  H04N19/11 ,  H04N19/96 ,  H04N19/13 ,  H04N19/82 ,  H04N19/117 ,  H04N19/129 ,  H04N19/625 ,  H04N19/61 ,  H04N19/122 ,  H04N19/44 ,  H04N19/174 ,  H04N19/124 ,  H04N19/176

CPC classification number: H04N19/593 ,  H04N7/26244 ,  H04N7/50 ,  H04N19/11 ,  H04N19/117 ,  H04N19/122 ,  H04N19/124 ,  H04N19/129 ,  H04N19/13 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/426 ,  H04N19/44 ,  H04N19/463 ,  H04N19/61 ,  H04N19/625 ,  H04N19/82 ,  H04N19/96

Abstract: A method for intra prediction comprises determining a first MPM candidate corresponding to a left-side candidate block on the basis of a position of the left-side candidate block adjacent to a left side of a current block; determining a second MPM candidate corresponding to an upper-end candidate block on the basis of a position of the upper-end candidate block adjacent to an upper end of the current block; generating an MPM candidate list including a plurality of MPM candidates, on the basis of the first MPM candidate and the second MPM candidate; and determining one MPM candidate of the pluraity of the MPM candidates that constitute the MPM candidate list as an intra prediction mode of the current block, and performing intra prediction for the current block on the basis of the determined intra prediction mode to generate a prediction block corresponding to the current block.

Abstract translation: 用于帧内预测的方法包括：基于与当前块的左侧相邻的左侧候选块的位置来确定与左侧候选块相对应的第一MPM候选; 基于与当前块的上端相邻的上位候选块的位置，确定与上位候选块对应的第二MPM候选; 基于所述第一MPM候选和所述第二MPM候选，生成包括多个MPM候选的MPM候选列表; 以及将构成所述MPM候选列表的MPM候选者的一个MPM候选者的一个MPM候选确定为当前块的帧内预测模式，并且基于所确定的帧内预测模式对当前块进行帧内预测，​​以生成预测块 对应于当前块。

公开(公告)号：US20250139832A1

公开(公告)日：2025-05-01

申请号：US18719226

申请日：2022-12-13

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY

IPC: G06T9/00 ,  H04N19/132 ,  H04N19/136 ,  H04N19/187 ,  H04N19/31

Abstract: A transmission device of point cloud data, a method performed by the transmission device, a reception device and a method performed by the reception device are provided. A method performed by a reception device of point cloud data may comprise obtaining a geometry-based point cloud compression (G-PCC) file including the point cloud data, obtaining temporal level number information indicating the number of temporal levels in a track within the G-PCC file from the G-PCC file, and obtaining sample group information of samples in the track from the G-PCC file based on the temporal level number information. The sample group information may be obtained based on the temporal level number information indicating that there is a plurality of temporal levels in the track.

公开(公告)号：US20250119591A1

公开(公告)日：2025-04-10

申请号：US18982642

申请日：2024-12-16

Applicant: LG ELECTRONICS INC.

Inventor： Seethal PALURI ,  Hendry HENDRY ,  Seung Hwan KIM

IPC: H04N19/70 ,  H04N19/172 ,  H04N19/187 ,  H04N19/30 ,  H04N19/423

Abstract: An image encoding/decoding method and apparatus for signaling a VPS and a recording medium storing a bitstream are provided. An image decoding method may comprise obtaining first information indicating whether each output layer set (OLS) specified by a video parameter set (VPS) includes only one layer, obtaining second information indicating the number of decoded picture buffer (DPB) parameter syntax structures in the VPS, based on the first information, obtaining the DPB parameter syntax structures in the VPS based on the second information, and managing a DPB based on the DPB parameter syntax structures.

公开(公告)号：US20250047865A1

公开(公告)日：2025-02-06

申请号：US18925318

申请日：2024-10-24

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：US20250016380A1

公开(公告)日：2025-01-09

申请号：US18888907

申请日：2024-09-18

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY ,  Seethal PALURI ,  Seunghwan KIM

IPC: H04N19/82 ,  H04N19/156 ,  H04N19/18

Abstract: According to embodiments of the present document, the subjective/objective quality of an image can be improved through image coding on the basis of subpictures and/or virtual boundaries, and consumption of hardware resources required for coding can be reduced.

公开(公告)号：US20240422351A1

公开(公告)日：2024-12-19

申请号：US18815245

申请日：2024-08-26

Applicant: LG Electronics Inc.

Inventor： Jaehyun LIM ,  Seungwook PARK ,  Yongjoon JEON ,  Jungsun KIM ,  Hendry HENDRY ,  Byeongmoon JEON ,  Joonyoung PARK ,  Chulkeun KIM ,  Naeri PARK

IPC: H04N19/593 ,  H04N19/11 ,  H04N19/117 ,  H04N19/122 ,  H04N19/124 ,  H04N19/129 ,  H04N19/13 ,  H04N19/159 ,  H04N19/174 ,  H04N19/176 ,  H04N19/426 ,  H04N19/44 ,  H04N19/463 ,  H04N19/61 ,  H04N19/625 ,  H04N19/82 ,  H04N19/96

Abstract: A method for intra prediction comprises determining a first MPM candidate corresponding to a left-side candidate block on the basis of a position of the left-side candidate block adjacent to a left side of a current block; determining a second MPM candidate corresponding to an upper-end candidate block on the basis of a position of the upper-end candidate block adjacent to an upper end of the current block; generating an MPM candidate list including a plurality of MPM candidates, on the basis of the first MPM candidate and the second MPM candidate; and determining one MPM candidate of the pluraity of the MPM candidates that constitute the MPM candidate list as an intra prediction mode of the current block, and performing intra prediction for the current block on the basis of the determined intra prediction mode to generate a prediction block corresponding to the current block.

公开(公告)号：US20240380896A1

公开(公告)日：2024-11-14

申请号：US18629859

申请日：2024-04-08

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY ,  Joonyoung PARK ,  Chulkeun KIM ,  Byeongmoon JEON ,  Jungsun KIM

IPC: H04N19/159 ,  H04N7/00 ,  H04N19/105 ,  H04N19/172 ,  H04N19/184 ,  H04N19/423 ,  H04N19/46 ,  H04N19/58 ,  H04N19/70

Abstract: Disclosed is a video decoding method which includes receiving reference picture set (RPS) information for constructing an RPS for a current picture, the RPS information comprising most significant bit (MSB) information for calculating an MSB of a picture order count (POC) of a long-term reference picture (LTRP) for the current picture and flag information indicating whether the MSB information is present; and deriving the RPS using the received MSB information and marking a reference picture when the flag information is 1, the flag information equal to 1 if there is more than one POC in a previous picture POC set comprising POCs relating to a previous picture that has a temporal sub-layer identifier equal to 0 and cannot be discarded without affecting decodability of another picture in the same temporal layer for which the POC modulo MaxPicOrderCntLsb is equal to an LSB of the POC of the LTRP, MaxPicOrderCntLsb is the max least significant bit (LSB) value.

公开(公告)号：US20240373038A1

公开(公告)日：2024-11-07

申请号：US18776558

申请日：2024-07-18

Applicant: LG Electronics Inc.

Inventor： Hendry HENDRY

IPC: H04N19/174 ,  H04N19/105 ,  H04N19/169 ,  H04N19/172 ,  H04N19/70

Abstract: According to the disclosure of the present document, an NAL unit type for slices in a picture may be determined on the basis of NAL unit type-related information relating to whether the picture has a mixed-NAL unit type, and a type mixed with another type of NAL unit as well as an IRAP for a picture having the mixed-NAL unit type may be provided.

公开(公告)号：US20240333929A1

公开(公告)日：2024-10-03

申请号：US18733717

申请日：2024-06-04

Applicant: LG ELECTRONICS INC.

Inventor： Hendry HENDRY ,  Seethal Paluri ,  Seunghwan Kim

IPC: H04N19/119 ,  H04N19/132 ,  H04N19/176 ,  H04N19/46

CPC classification number: H04N19/119 ,  H04N19/132 ,  H04N19/176 ,  H04N19/46

Abstract: A method by which a decoding apparatus decodes an image, according to the present disclosure, can signal slice-associated information on the basis of a flag related to whether there is sub-picture information and a flag related to whether a sub-picture includes a single slice.

公开(公告)号：US20240292015A1

公开(公告)日：2024-08-29

申请号：US18660702

申请日：2024-05-10

Applicant: LG Electronics Inc.

Inventor： Hendry HENDRY ,  Seung Hwan KIM ,  Seethal PALURI

IPC: H04N19/46 ,  H04N19/105 ,  H04N19/119 ,  H04N19/167 ,  H04N19/172 ,  H04N19/82

CPC classification number: H04N19/46 ,  H04N19/105 ,  H04N19/119 ,  H04N19/167 ,  H04N19/172 ,  H04N19/82

Abstract: Provided is an image encoding/decoding method and apparatus. The image decoding method comprises obtaining subpicture information from a bitstream, deriving one or more subpictures in a current picture based on the subpicture information, and decoding a current subpicture in the current picture based on the subpicture information. The subpicture information may comprise a first flag specifying whether each of the one or more subpictures is treated as a picture, and, based on the bitstream including at least one first layer referring to a current layer including the current picture, the first flag for the first subpicture included in a first layer and corresponding to the current subpicture, and the first flag for the current subpicture have the same value.