公开(公告)号：PL4060996T3

公开(公告)日：2024-09-02

申请号：PL20898548

申请日：2020-12-11

Applicant: LG ELECTRONICS INC

Inventor： HENDRY HENDRY ,  PALURI SEETHAL ,  KIM SEUNGHWAN

IPC: H04N19/82 ,  H04N19/105 ,  H04N19/132 ,  H04N19/59 ,  H04N19/70 ,  H04N19/86

公开(公告)号：PL3989562T3

公开(公告)日：2024-08-19

申请号：PL20827025

申请日：2020-06-11

Applicant: LG ELECTRONICS INC

Inventor： NAM JUNGHAK ,  KOO MOONMO ,  LIM JAEHYUN ,  KIM SEUNGHWAN

IPC: H04N19/12 ,  H04N19/13 ,  H04N19/176 ,  H04N19/463 ,  H04N19/70

公开(公告)号：CA3123193C

公开(公告)日：2024-02-13

申请号：CA3123193

申请日：2019-12-19

Applicant: LG ELECTRONICS INC

Inventor： KOO MOONMO ,  KIM SEUNGHWAN ,  LIM JAEHYUN

IPC: H04N19/61 ,  H04N19/11 ,  H04N19/122 ,  H04N19/124 ,  H04N19/132 ,  H04N19/18 ,  H04N19/593 ,  H04N19/70

Abstract: A video decoding method according to the present document is characterized by comprising: a step for deriving transform coefficients through inverse quantization on the basis of quantized transform coefficients for a target block; a step for deriving modified transform coefficients on the basis of an inverse reduced secondary transfonn (RST) of the transform coefficients; and a step for generating a reconstructed picture on the basis of residual samples for the target block on the basis of of an inverse primary transform of the modified transform coefficients, wherein the inverse RST using a transform kernel matrix is performed on transform coefficients of the upper-left 4x4 region of an 8x8 region of the target block, and the modified transform coefficients of the upper-left 4x4 region, upper-right 4x4 region, and lower-left 4x4 region of the 8x8 are derived through the inverse RST.

公开(公告)号：AU2020360102B2

公开(公告)日：2024-01-11

申请号：AU2020360102

申请日：2020-10-05

Applicant: LG ELECTRONICS INC

Inventor： KOO MOONMO ,  LIM JAEHYUN ,  KIM SEUNGHWAN ,  SALEHIFAR MEHDI

IPC: H04N19/60 ,  H04N19/119 ,  H04N19/122 ,  H04N19/132 ,  H04N19/137 ,  H04N19/18 ,  H04N19/186 ,  H04N19/70

Abstract: An image decoding method, according to the present document, comprises the steps of: determining whether to parse an MTS index for applying an MTS to the current block; deriving residual samples for the current block by applying the MTS to the current block on the basis of the MTS index; and generating a reconstructed picture on the basis of the residual samples, wherein the step of determining whether to parse the MTS index includes determining the tree type of the current block, the division type of the current block, and whether zero-out for the MTS has been performed in the current block.

公开(公告)号：ES2954232T3

公开(公告)日：2023-11-21

申请号：ES19900872

申请日：2019-12-19

Applicant: LG ELECTRONICS INC

Inventor： KOO MOONMO ,  KIM SEUNGHWAN ,  LIM JAEHYUN

IPC: H04N19/60 ,  H04N19/11 ,  H04N19/122 ,  H04N19/124 ,  H04N19/132 ,  H04N19/18 ,  H04N19/593 ,  H04N19/70

Abstract: Un método de decodificación de vídeo según el presente documento se caracteriza por comprender: una etapa para derivar coeficientes de transformación mediante cuantificación inversa sobre la base de coeficientes de transformación cuantificados para un bloque objetivo; una etapa para derivar coeficientes de transformación modificados basándose en una transformada secundaria reducida inversa (RST) de los coeficientes de transformación; y una etapa para generar una imagen reconstruida sobre la base de muestras residuales para el bloque objetivo sobre la base de una transformación primaria inversa de los coeficientes de transformación modificados, en donde el RST inverso usando una matriz de núcleo de transformación se realiza sobre los coeficientes de transformación de la parte superior. la región 4x4 izquierda de una región 8x8 del bloque objetivo, y los coeficientes de transformación modificados de la región 4x4 superior izquierda, la región 4x4 superior derecha y la región 4x4 inferior izquierda de la región 8x8 se derivan a través del RST inverso. (Traducción automática con Google Translate, sin valor legal)

公开(公告)号：AU2023248155A1

公开(公告)日：2023-11-02

申请号：AU2023248155

申请日：2023-10-12

Applicant: LG ELECTRONICS INC

Inventor： HENDRY HENDRY ,  PALURI SEETHAL ,  KIM SEUNGHWAN

IPC: H04N19/70 ,  H04N19/119 ,  H04N19/122 ,  H04N19/132 ,  H04N19/174

Abstract: A method by which a video decoding device decodes a video, according to the present document, can comprise the steps of: parsing, from a bitstream, number information related to the number of slices of which the height within a tile of a current picture is explicitly signaled; parsing, from the bitstream, on the basis of the number information, height information related to the height of the slices of which the height is explicitly signaled; deriving the number of slices in the tile on the basis of the number information and the height information; generating prediction samples by predicting the current block of the current picture on the basis of the slices within the tile; generating reconstructed samples on the basis of the prediction samples; and generating a reconstructed picture for the current picture on the basis of the reconstructed samples.

公开(公告)号：MX2022007230A

公开(公告)日：2022-09-21

申请号：MX2022007230

申请日：2020-12-11

Applicant: LG ELECTRONICS INC

Inventor： KIM SEUNGHWAN ,  PALURI SEETHAL ,  HENDRY HENDRY

IPC: H04N19/82 ,  H04N19/105 ,  H04N19/132 ,  H04N19/70 ,  H04N19/86

Abstract: De acuerdo con las modalidades descritas en este documento, se pueden usar subimágenes y/o límites virtuales para codificar una imagen. Por ejemplo, las subimágenes en la imagen actual se pueden usar para predecir, reconstruir y/o filtrar la imagen actual. Los límites virtuales se pueden usar para filtrar muestras reconstruidas de la imagen actual. A través de la codificación de imágenes con base en las subimágenes y/o los límites virtuales de acuerdo con las modalidades descritas en este documento, se puede mejorar la calidad subjetiva/objetiva de una imagen y se puede reducir el consumo de recursos de hardware necesarios para la codificación.

公开(公告)号：AU2020400813A1

公开(公告)日：2022-07-28

申请号：AU2020400813

申请日：2020-12-11

Applicant: LG ELECTRONICS INC

Inventor： HENDRY HENDRY ,  PALURI SEETHAL ,  KIM SEUNGHWAN

IPC: H04N19/82 ,  H04N19/105 ,  H04N19/132 ,  H04N19/70 ,  H04N19/86

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 sub-pictures 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：AU2020394260A1

公开(公告)日：2022-07-07

申请号：AU2020394260

申请日：2020-11-26

Applicant: LG ELECTRONICS INC

Inventor： HENDRY HENDRY ,  PALURI SEETHAL ,  KIM SEUNGHWAN

IPC: H04N19/70 ,  H04N19/119 ,  H04N19/122 ,  H04N19/174

Abstract: A method by which a decoding device decodes an image, according the present disclosure, comprises a flag related to whether there is sub-picture information and a flag related to whether a sub-picture includes a single slice, wherein the flag related to whether there is sub-picture information corresponds to a value of 0, and the flag related to whether the sub-picture includes the single slice corresponds to a value of 1.

公开(公告)号：AU2020392150A1

公开(公告)日：2022-07-07

申请号：AU2020392150

申请日：2020-11-26

Applicant: LG ELECTRONICS INC

Inventor： HENDRY HENDRY ,  PALURI SEETHAL ,  KIM SEUNGHWAN

IPC: H04N19/70 ,  H04N19/103 ,  H04N19/119 ,  H04N19/132 ,  H04N19/174 ,  H04N19/176 ,  H04N19/423

Abstract: A video decoding method performed by a video decoding apparatus, according to the present document, comprises the steps of: parsing number information about the number of slices of which heights are explicitly signaled in a tile of a current picture from a bitstream; parsing height information about the heights of slices of which heights are explicitly signaled from the bitstream on the basis of the number information; deriving the number of slices in the tile on the basis of the number information and the height information; and decoding the current picture on the basis of the slices in the tile, wherein the height information includes the same number of syntax elements as a value of the number information, and on the basis of the value of the number information being n, the heights of a 0th slice to an n-1th slice in the tile may be derived on the basis of the syntax elements.