公开(公告)号：US12184873B2

公开(公告)日：2024-12-31

申请号：US17918288

申请日：2021-04-15

Applicant: LG ELECTRONICS INC.

Inventor： Hendry Hendry ,  Seethal Paluri ,  Seung Hwan Kim

IPC: H04N19/187 ,  H04N19/169

Abstract: An image encoding/decoding method and apparatus are provided. The image deciding method includes determining at least one layer in an output layer set (OLS); and determining a number of sub-layers for the at least one layer.

公开(公告)号：US12177466B2

公开(公告)日：2024-12-24

申请号：US17780000

申请日：2020-11-27

Applicant: LG ELECTRONICS INC.

Inventor： Hendry Hendry ,  Seethal Paluri ,  Seunghwan Kim

IPC: H04N19/61 ,  H04N19/119 ,  H04N19/132 ,  H04N19/169 ,  H04N19/172 ,  H04N19/174 ,  H04N19/176 ,  H04N19/463

Abstract: A method for decoding an image by a decoding device, according to the present disclosure, can signal picture partitioning related information on the basis of a flag indicating whether sub-picture information exists and a flag indicating whether subpictures each include a single slice.

公开(公告)号：US12155836B2

公开(公告)日：2024-11-26

申请号：US17780719

申请日：2020-11-26

Applicant: LG ELECTRONICS INC.

Inventor： Hendry Hendry ,  Seethal Paluri ,  Seunghwan Kim

IPC: H04N19/615 ,  H04N19/132 ,  H04N19/174 ,  H04N19/176 ,  H04N19/70

Abstract: A video decoding method performed by a video decoding apparatus, according to the present document, may comprise the steps of: parsing, from a bitstream, number information about the number of slices having heights specifically signaled within a tile of a current picture; on the basis of the number information, parsing, from the bitstream, height information about the heights of the slices having the specifically signaled heights; deriving the number of slices within the tile on the basis of the number information and the height information; generating prediction samples by performing at least one of intra prediction and inter prediction on a current block of the current picture on the basis of the slices within the tile; and generating reconstructed samples on the basis of the prediction samples.

公开(公告)号：US12149696B2

公开(公告)日：2024-11-19

申请号：US17784465

申请日：2020-12-11

Applicant: LG ELECTRONICS INC.

Inventor： Hendry Hendry ,  Seethal Paluri ,  Seunghwan Kim

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

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：US12132937B2

公开(公告)日：2024-10-29

申请号：US18135999

申请日：2023-04-18

Applicant: LG ELECTRONICS INC.

Inventor： Hendry Hendry ,  Seethal Paluri ,  Seunghwan Kim

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

CPC classification number: 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：US12126807B2

公开(公告)日：2024-10-22

申请号：US17763054

申请日：2020-09-23

Applicant: LG ELECTRONICS INC.

Inventor： Hyeong Moon Jang ,  Seethal Paluri

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

CPC classification number: 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：US12113973B2

公开(公告)日：2024-10-08

申请号：US17792600

申请日：2021-01-15

Applicant: LG ELECTRONICS INC.

Inventor： Seethal Paluri ,  Hendry Hendry

IPC: H04N19/117 ,  G06V10/60 ,  H04N19/132 ,  H04N19/172 ,  H04N19/186 ,  H04N19/70 ,  H04N19/82

CPC classification number: H04N19/117 ,  G06V10/60 ,  H04N19/132 ,  H04N19/172 ,  H04N19/186 ,  H04N19/70 ,  H04N19/82

Abstract: According to embodiment(s) of the present document, computational overhead and complexity can be reduced by using a 0th-order exponential Golomb coding scheme (ue(v)) for procedures of parsing syntax elements/information about absolute values of luma/chroma ALF filter coefficients. In addition, coding using ue(v) can be efficiently performed by fixing the range of values of the information about the absolute values of the luma/chroma ALF filter coefficients.

公开(公告)号：US12096041B2

公开(公告)日：2024-09-17

申请号：US17766954

申请日：2020-10-06

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

CPC classification number: 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：US12088806B2

公开(公告)日：2024-09-10

申请号：US17629651

申请日：2020-08-20

Applicant: LG Electronics Inc.

Inventor： Jie Zhao ,  Seunghwan Kim ,  Seethal Paluri

IPC: H04N19/124 ,  H04N19/132 ,  H04N19/169 ,  H04N19/176 ,  H04N19/18 ,  H04N19/186 ,  H04N19/60 ,  H04N19/70

CPC classification number: H04N19/124 ,  H04N19/132 ,  H04N19/176 ,  H04N19/18 ,  H04N19/186 ,  H04N19/1883 ,  H04N19/60 ,  H04N19/70

Abstract: An image decoding method performed by a decoding device according to the present document comprises the steps of: obtaining CU chroma QP offset-related information for a current chroma block on the basis of the size and tree type of the current chroma block; deriving a chroma QP for the current chroma block on the basis of the CU chroma QP offset-related information; deriving residual samples for the current chroma block on the basis of the chroma QP; and generating a reconstructed picture on the basis of the residual samples, wherein the CU chroma QP offset-related information includes a CU chroma QP offset flag and a CU chroma QP offset index for the current chroma block.

公开(公告)号：US12081802B2

公开(公告)日：2024-09-03

申请号：US18235485

申请日：2023-08-18

Applicant: LG Electronics Inc.

Inventor： Seethal Paluri ,  Seunghwan Kim ,  Jie Zhao

IPC: H04N19/70 ,  H04N19/124 ,  H04N19/132 ,  H04N19/176 ,  H04N19/18 ,  H04N19/30 ,  H04N19/172 ,  H04N19/174

CPC classification number: H04N19/70 ,  H04N19/124 ,  H04N19/132 ,  H04N19/176 ,  H04N19/18 ,  H04N19/30 ,  H04N19/172 ,  H04N19/174

Abstract: According to the disclosure of the present document, scaling list data delivered in an adaptation parameter set (APS) may be signaled through a hierarchical structure, and the amount of data that needs to be signaled for video/image coding may be reduced and implementation may be facilitated by placing limits on the scaling list data delivered in the APS.