公开(公告)号：US20220132110A1

公开(公告)日：2022-04-28

申请号：US17441617

申请日：2020-03-23

Applicant: LG ELECTRONICS INC.

Inventor： Seethal PALURI ,  Jaehyun LIM ,  Seunghwan KIM ,  Jie ZHAO

IPC: H04N19/117 ,  H04N19/18 ,  H04N19/169 ,  H04N19/70 ,  H04N19/186 ,  H04N19/174 ,  H04N19/172 ,  H04N19/82 ,  H04N19/176 ,  H04N19/61 ,  H04N19/132

Abstract: According to the disclosure of the present document, LMCS data and/or an ALF parameter can be signaled on the basis of type information from a parameter set. A default LMCS model comprised in the parameter set can be selectively used for an LMCS procedure. Therefore, the amount of data to be signaled for video/image coding is reduced and coding efficiency can be increased.

公开(公告)号：US20220103848A1

公开(公告)日：2022-03-31

申请号：US17546499

申请日：2021-12-09

Applicant: LG Electronics Inc.

Inventor： Seethal PALURI ,  Seunghwan KIM ,  Jie ZHAO

IPC: H04N19/46 ,  H04N19/70 ,  H04N19/132 ,  H04N19/186 ,  H04N19/176

Abstract: An image decoding method performed by a decoding device, according to the present document, comprises the steps of: obtaining image information; and generating a reconstructed picture on the basis of the image information.

公开(公告)号：US20220021884A1

公开(公告)日：2022-01-20

申请号：US17296154

申请日：2019-12-06

Applicant: LG ELECTRONICS INC.

Inventor： Seethal PALURI ,  Seunghwan KIM ,  Mehdi SALEHIFAR

IPC: H04N19/137 ,  H04N19/105 ,  H04N19/159 ,  H04N19/70 ,  H04N19/176

Abstract: A method and device for processing a video signal are disclosed. More specifically, a method of processing a video signal based on inter prediction may include when a motion vector prediction (MVP) mode is applied to a current block, deriving a motion vector predictor based on motion information of a neighboring block of the current block; in a pre-defined layer structure in which at least one combination of horizontal and vertical components of a motion vector difference is distinguished by a plurality of layers, obtaining layer information indicating a current layer to which a motion vector difference used in inter prediction of the current block belongs; obtaining index information indicating a specific combination in the current layer; deriving the motion vector difference of the current block based on the layer information and the index information; deriving a motion vector of the current block based on the motion vector predictor and the motion vector difference; and generating a prediction block of the current block based on the motion vector of the current block.

公开(公告)号：US20210392333A1

公开(公告)日：2021-12-16

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 ,  H04N19/82 ,  H04N19/46 ,  H04N19/169 ,  H04N19/176

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：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：US20250071284A1

公开(公告)日：2025-02-27

申请号：US18825978

申请日：2024-09-05

Applicant: LG ELECTRONICS INC.

Inventor： Hyeong Moon JANG ,  Seethal PALURI

IPC: H04N19/132 ,  H04N19/174 ,  H04N19/176 ,  H04N19/186

Abstract: An image encoding/decoding method and apparatus are provided. An image decoding method according to the present disclosure may include: obtaining palette information and palette index prediction information of a current block from a bitstream; constructing a palette predictor for the current block based on the palette information and constructing a palette table for the current block based on the palette predictor; generating a palette index map for the current block based on the palette index prediction information; and decoding the current block based on the palette table and the palette index map, wherein the palette predictor may be initialized using a user defined palette entry obtained from at least one of an adaptation parameter set (APS), a picture parameter set (PPS) or a slice header.

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：US20240430461A1

公开(公告)日：2024-12-26

申请号：US18825388

申请日：2024-09-05

Applicant: LG Electronics Inc.

Inventor： Seethal PALURI ,  Seunghwan KIM ,  Jie ZHAO

IPC: H04N19/30 ,  H04N19/124 ,  H04N19/132 ,  H04N19/174 ,  H04N19/176 ,  H04N19/18 ,  H04N19/70

Abstract: According to the disclosure of the present document, scaling list data transferred from an adaptation parameter set (APS) can be signaled through a hierarchical structure, and restrictions are placed on the scaling list data transferred from the APS, whereby the amount of data to be signaled for video/image coding can be reduced, and easiness in implementation can be provided.

公开(公告)号：US20240414362A1

公开(公告)日：2024-12-12

申请号：US18810056

申请日：2024-08-20

Applicant: LG Electronics Inc.

Inventor： Seethal PALURI ,  Seunghwan KIM

IPC: H04N19/30 ,  H04N19/124 ,  H04N19/174 ,  H04N19/176 ,  H04N19/18

Abstract: According to a disclosure of the present document, scaling list data and scaling list-related information may be hierarchically signaled, and through same, the amount of data which must be signaled for video/image coding may be reduced, and coding efficiency may be increased.

公开(公告)号：US20240373001A1

公开(公告)日：2024-11-07

申请号：US18771486

申请日：2024-07-12

Applicant: LG ELECTRONICS INC.

Inventor： Seethal PALURI ,  Seunghwan Kim

IPC: H04N19/117 ,  H04N19/132 ,  H04N19/159 ,  H04N19/176 ,  H04N19/186 ,  H04N19/82 ,  H04N19/91

Abstract: According to the disclosure of the present disclosure, the index of an alternative filter is derived from ALF information, and an ALF procedure for a chroma component of a current block can be performed on the basis of the alternative filter