公开(公告)号：AU2022252845A1

公开(公告)日：2022-11-17

申请号：AU2022252845

申请日：2022-10-14

Applicant: LG ELECTRONICS INC

Inventor： PALURI SEETHAL ,  KIM SEUNGHWAN

IPC: H04N19/58 ,  H04N19/105 ,  H04N19/119 ,  H04N19/176 ,  H04N19/70

Abstract: Embodiments of the disclosure provide methods and devices for decoding video signals using inter prediction. According to an embodiment of the disclosure, a method for processing a video signal comprises constructing a reference picture list of a current 5 picture in the video signal and performing a prediction for a current picture by using the reference picture list, wherein constructing the reference picture list comprising, if a first entry of the reference picture list corresponds to a short-term reference picture (STRP), obtaining a picture order count (POC) difference between a picture related to the first entry and another picture, and if a second entry of the reference picture list corresponds o to a long-term reference picture (LTRP), obtaining a POC modulo value of a picture related to the second entry. A reference picture list for identifying a picture may be generated in a simplified and effective manner. Thus, the compression performance may be increased, and the computation time may be decreased.

公开(公告)号：AU2021207559A1

公开(公告)日：2022-09-08

申请号：AU2021207559

申请日：2021-01-13

Applicant: LG ELECTRONICS INC

Inventor： PALURI SEETHAL ,  HENDRY HENDRY ,  ZHAO JIE ,  KIM SEUNGHWAN

IPC: H04N19/70 ,  H04N19/105 ,  H04N19/132 ,  H04N19/137 ,  H04N19/184

Abstract: According to the present document, a video decoding method performed by a video decoding device may comprise the steps of: parsing a first flag and a second flag from a bitstream, wherein the first flag is related to whether weighted prediction is applied to slices referring to a picture parameter set within the bitstream, and the second flag is related to whether information relating to the weighted prediction exists in a picture header within the bitstream; parsing a prediction weighted table syntax from the picture header on the basis of the first flag and the second flag; generating prediction samples for a current block in a current picture on the basis of syntax elements within the prediction weighted table syntax; generating residual samples on the basis of residual information obtained from the bitstream; and generating reconstructed samples on the basis of the prediction samples and the residual samples, wherein the second flag is parsed from the picture parameter set on the basis of the first flag.

公开(公告)号：AU2021207558A1

公开(公告)日：2022-09-08

申请号：AU2021207558

申请日：2021-01-13

Applicant: LG ELECTRONICS INC

Inventor： PALURI SEETHAL ,  HENDRY HENDRY ,  ZHAO JIE ,  KIM SEUNGHWAN

IPC: H04N19/70 ,  H04N19/105 ,  H04N19/132 ,  H04N19/176 ,  H04N19/184

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 picture parameter set of a bitstream, a first flag related to whether a weighted prediction is applied to slices referring to the picture parameter set; parsing, from the picture parameter set, a second flag related to whether information about the weighted prediction is present in a picture header of the bitstream or is present in a slice header of the bitstream on the basis of the first flag; parsing a prediction weighted table syntax from the picture header or the slice header on the basis of the first flag and the second flag; generating prediction samples for the current block by performing weighted prediction for the current block in a current picture on the basis of syntax elements in the prediction weighted table syntax; and generating reconstructed samples on the basis of the prediction samples.

公开(公告)号：MX2022006429A

公开(公告)日：2022-09-07

申请号：MX2022006429

申请日：2020-11-26

Applicant: LG ELECTRONICS INC

Inventor： KIM SEUNGHWAN ,  PALURI SEETHAL ,  HENDRY HENDRY

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

Abstract: Un método mediante el cual un dispositivo de decodificación de video decodifica un video, de acuerdo con el presente documento, puede comprender los pasos de: analizar, a partir de un flujo de bits, información de número relacionada con el número de segmentos cuya altura dentro de un mosaico de una imagen actual sea señalizada explícitamente; analizar, a partir del flujo de bits, sobre la base de la información de número, información de altura relacionada con la altura de los segmentos cuya altura se indique explícitamente; derivar el número de segmentos en el mosaico sobre la base de la información de número y la información de altura; generar muestras de predicción prediciendo el bloque actual de la imagen actual sobre la base de los segmentos dentro del mosaico; generar muestras reconstruidas sobre la base de las muestras de predicción; y generar una imagen reconstruida para la imagen actual sobre la base de las muestras reconstruidas.

公开(公告)号：AU2020393729A1

公开(公告)日：2022-07-07

申请号：AU2020393729

申请日：2020-11-26

Applicant: LG ELECTRONICS INC

Inventor： HENDRY HENDRY ,  PALURI SEETHAL ,  KIM SEUNGHWAN

IPC: H04N19/70 ,  H04N19/119 ,  H04N19/122 ,  H04N19/132 ,  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：BR122021019686B1

公开(公告)日：2022-05-24

申请号：BR122021019686

申请日：2018-12-21

Applicant: LG ELECTRONICS INC

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

IPC: H04N19/105 ,  H04N19/60 ,  H04N19/91

Abstract: trata-se de um método para decodificar uma imagem por um dispositivo de decodificação de acordo com a presente invenção que compreende as etapas de: derivar, a partir de um fluxo de bits, coeficientes de transformada de um bloco a ser decodificado; derivar amostras residuais do bloco a ser decodificado, com base em uma transformada seletiva dos coeficientes de transformada; e gerar uma gravura reconstruída com base nas amostras residuais do bloco a ser decodificado e amostras de predição do bloco a ser decodificado, em que a transformada seletiva é realizada com base em uma matriz de transformada modificada, sendo que a matriz de transformada modificada compreende uma matriz que inclui um vetor de base modificado, e o vetor de base modificado contém um determinado número de elementos selecionados a partir de n elementos.

公开(公告)号：RU2769347C1

公开(公告)日：2022-03-30

申请号：RU2021122470

申请日：2020-01-02

Applicant: LG ELECTRONICS INC

Inventor： PALURI SEETHAL ,  KIM SEUNGHWAN

IPC: H04N19/105 ,  H04N19/58 ,  H04N19/70

Abstract: Группаизобретенийотноситсяк технологиямобработкивидеосигналовс использованиемвнешнегопрогнозирования. Техническимрезультатомявляетсяповышениеточностиформированияпрогнозныхвыборок. Предложенспособдекодированиявидеосигналас использованиемвнешнегопрогнозирования. Способсодержитэтап, накоторомконструируютсписокопорныхкадровдлятекущегокадрав видеосигнале. Далеевыполняютпрогнозированиедлятекущегокадранаосновеспискаопорныхкадров. Приэтомконструированиеспискаопорныхкадроввключаетв себяэтап, накоторомполучаютчислозаписейспискаопорныхкадров. Атакжевыполняютпометкуопорныхкадровдлякаждойиззаписейспискаопорныхкадровв качествекратковременногоопорногокадра (STRP) илидолговременногоопорногокадра (LTRP) посредствомчислазаписей. 4 н. и 11 з.п. ф-лы, 18 ил., 5 табл.

公开(公告)号：MX2021012283A

公开(公告)日：2022-01-18

申请号：MX2021012283

申请日：2019-12-18

Applicant: LG ELECTRONICS INC

Inventor： KIM SEUNGHWAN ,  PALURI SEETHAL

IPC: H04N19/119 ,  H04N19/176 ,  H04N19/50 ,  H04N19/70

Abstract: Un método de descodificación de imágenes realizado por un dispositivo de descodificación de conformidad con la presente descripción comprende las etapas de: recibir un flujo de bits que contiene al menos uno de información de segmentación de una imagen actual e información de predicción para un bloque actual incluido en la imagen actual; derivar una primera estructura de segmentación de la imagen actual, que se basa en múltiples mosaicos, sobre la base de la información de segmentación de la imagen actual que incluye al menos uno de información del número de columnas de separación de anchura, información de la última anchura, información del número de filas de separación de altura e información de la última altura; derivar un bloque pronosticado para el bloque actual, sobre la base de la información de predicción para el bloque actual contenida en uno de los múltiples mosaicos; y generar muestras de reconstrucción para el bloque actual sobre la base del bloque pronosticado.

公开(公告)号：CA3143240A1

公开(公告)日：2020-12-17

申请号：CA3143240

申请日：2020-06-11

Applicant: LG ELECTRONICS INC

Inventor： PALURI SEETHAL ,  KIM SEUNGHWAN ,  ZHAO JIE

IPC: H04N19/124 ,  H04N19/186 ,  H04N19/70

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：HUE068173T2

公开(公告)日：2024-12-28

申请号：HUE20889141

申请日：2020-11-17

Applicant: LG ELECTRONICS INC

Inventor： HENDRY HENDRY ,  PALURI SEETHAL ,  KIM SEUNGHWAN

IPC: H04N19/82 ,  H04N19/14 ,  H04N19/70