公开(公告)号：US12273506B2

公开(公告)日：2025-04-08

申请号：US17927108

申请日：2021-05-11

Applicant: LG Electronics Inc.

Inventor： Hendry Hendry ,  Junghak Nam ,  Hyeongmoon Jang ,  Jaehyun Lim ,  Seunghwan Kim

IPC: H04N19/105 ,  H04N19/132 ,  H04N19/174 ,  H04N19/176

Abstract: A multilayer-based image decoding method performed by a decoding device, according to the disclosure of the present document, comprises the steps of: obtaining image information including information related to a reference picture list from a bitstream; deriving the reference picture list on the basis of the information related to the reference picture list; generating prediction samples of a current block by performing prediction on the current block on the basis of a reference picture included in the reference picture list; and generating a reconstructed picture including reconstructed samples on the basis of the prediction samples.

公开(公告)号：US12262062B2

公开(公告)日：2025-03-25

申请号：US18222168

申请日：2023-07-14

Applicant: LG ELECTRONICS INC.

Inventor： Hendry Hendry ,  Seethal Paluri ,  Seunghwan Kim

IPC: H04N19/82 ,  H04N19/117 ,  H04N19/132 ,  H04N19/176 ,  H04N19/46 ,  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：US12256106B2

公开(公告)日：2025-03-18

申请号：US17780812

申请日：2020-11-26

Applicant: LG ELECTRONICS INC.

Inventor： Hendry Hendry ,  Seethal Paluri ,  Seunghwan Kim

IPC: H04N19/107 ,  H04N19/119 ,  H04N19/124 ,  H04N19/136 ,  H04N19/174 ,  H04N19/70

Abstract: A video decoding method performed by a video decoding device according to the present document may comprise: parsing, from a bitstream, number information relating to explicitly signaled height for slices in a tile of a current picture; based on the number information, parsing, from the bitstream, height information relating to explicitly signaled height for the slices, deriving heights of 0-th to (n−1)-th slices in the tile based on the height information; deriving the height of the n-th slice in the tile based on the height of the (n−1)-th slice; deriving a height of a last slice in the tile based on a remaining height.

公开(公告)号：US12212765B2

公开(公告)日：2025-01-28

申请号：US17915313

申请日：2021-03-30

Applicant: LG Electronics Inc.

Inventor： Hendry Hendry

IPC: H04N19/105 ,  H04N19/136 ,  H04N19/157 ,  H04N19/172 ,  H04N19/184 ,  H04N19/423 ,  H04N19/70

Abstract: An image decoding method performed by a decoding apparatus according to the present disclosure comprises the steps of: obtaining image information including HRD-related information relating to a target OLS, wherein the target OLS is one of OLSs including a plurality of layers; determining whether an HRD parameter syntax structure relating to the target OLS exists, on the basis of the HRD-related information; deriving an HRD parameter syntax structure relating to the target OLS on the basis of a result of the determination; performing a DPB management process relating to a DPB on the basis of the HRD parameter syntax structure for the target OLS; and decoding a current picture on the basis of the DPB.

公开(公告)号：US20250016342A1

公开(公告)日：2025-01-09

申请号：US18891484

申请日：2024-09-20

Applicant: LG ELECTRONICS INC.

Inventor： Hendry Hendry ,  Joonyoung Park ,  Yongjoon Jeon ,  Byeongmoon Jeon ,  Jungsun Kim ,  Jaehyun Lim ,  Chulkeun Kim ,  Naeri Park ,  Seungwook Park

IPC: H04N19/436 ,  H04N19/119 ,  H04N19/174 ,  H04N19/70

Abstract: The present invention relates to a video encoding method, a video decoding method, and a device using the same, and the video encoding method according to the present invention comprises the steps of: specifying a tile and a slice by partitioning an inputted picture; performing encoding on the basis of the tile and the slice; and transmitting the encoded video information, wherein the picture is partitioned into one or more tiles and one or more slices, and the restrictions for parallel processing can be applied to the tiles and the slices.

公开(公告)号：US12192446B2

公开(公告)日：2025-01-07

申请号：US18215565

申请日：2023-06-28

Applicant: LG ELECTRONICS INC.

Inventor： Hendry Hendry ,  Seethal Paluri ,  Seunghwan Kim

IPC: H04N7/12 ,  H04N19/105 ,  H04N19/132 ,  H04N19/172 ,  H04N19/176 ,  H04N19/46

Abstract: According to embodiments described herein, sub-pictures and/or virtual boundaries can be used for coding an image. For example, sub-pictures in the current picture can be used for predicting, reconstructing, and/or filtering the current picture. Virtual boundaries can be used for filtering reconstructed samples of the current picture. Through image coding based on the subpictures and/or virtual boundaries according to embodiments described herein, the subjective/objective quality of an image can be improved, and the consumption of hardware resources necessary for the coding can be reduced.

公开(公告)号：US12149727B2

公开(公告)日：2024-11-19

申请号：US18208070

申请日：2023-06-09

Applicant: LG Electronics Inc.

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

IPC: H04N19/105 ,  H04N19/109 ,  H04N19/132 ,  H04N19/137 ,  H04N19/159 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/51 ,  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：US12132918B2

公开(公告)日：2024-10-29

申请号：US17915302

申请日：2021-03-29

Applicant: LG ELECTRONICS INC.

Inventor： Seethal Paluri ,  Hendry Hendry ,  Seung Hwan Kim

IPC: H04N19/423 ,  H04N19/70

CPC classification number: H04N19/423 ,  H04N19/70

Abstract: Disclosed herein are an image encoding and decoding method and apparatus for signaling information on the number of DPB parameters, and a recording medium storing a bitstream. An image decoding method may comprise obtaining first information indicating the number of decoded picture buffer (DPB) parameter syntax structures in a video parameter set (VPS), computing the number of DPB parameter syntax structures in the VPS based on the first information, obtaining the DPB parameter syntax structures in the VPS based on the number of DPB parameter syntax structures, and managing a DPB based on the DPB parameter syntax structures.

公开(公告)号：US12126837B2

公开(公告)日：2024-10-22

申请号：US17792641

申请日：2021-01-15

Applicant: LG ELECTRONICS INC.

Inventor： Seethal Paluri ,  Hendry Hendry

IPC: H04N19/117 ,  H04N19/132 ,  H04N19/176 ,  H04N19/18 ,  H04N19/186 ,  H04N19/50 ,  H04N19/70 ,  H04N19/82

CPC classification number: H04N19/70 ,  H04N19/117 ,  H04N19/132 ,  H04N19/176 ,  H04N19/18 ,  H04N19/186 ,  H04N19/50 ,  H04N19/82

Abstract: According to embodiments of the present document, a zero-order exponential Golomb coding scheme(ue(v)) is used for a parsing procedure of an information/syntax element related to luma/chroma ALF filter coefficient absolute values, so that operational overhead and complexity can be reduced. In addition, since the range of values of the information related to the luma/chroma ALF filter coefficient absolute values is fixed, coding that uses ue(v) can be efficiently performed.

公开(公告)号：US12088812B2

公开(公告)日：2024-09-10

申请号：US17777241

申请日：2020-11-17

Applicant: LG ELECTRONICS INC.

Inventor： Hendry Hendry ,  Seethal Paluri ,  Seunghwan Kim

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

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

Abstract: In relation to an in-loop filtering procedure described in the present document, a virtual boundary is defined so as to further increase the subjective/objective visual quality of a restored picture and the in-loop filtering procedure can be applied across the virtual boundary. The virtual boundary can include, for example, a discontinuous edge such as a 360-degree image, a VR image, or picture in picture (PIP). For example, the virtual boundary can be at a predetermined appointed position, and the existence and/or the position thereof can be signaled. Embodiments of the present document present a method for efficiently signaling virtual boundary-related information.