MX2022004211A - Metodo de codificacion de imagenes a base de transformacion, y dispositivo para el mismo. - Google Patents

Metodo de codificacion de imagenes a base de transformacion, y dispositivo para el mismo.

Info

Publication number
MX2022004211A
MX2022004211A MX2022004211A MX2022004211A MX2022004211A MX 2022004211 A MX2022004211 A MX 2022004211A MX 2022004211 A MX2022004211 A MX 2022004211A MX 2022004211 A MX2022004211 A MX 2022004211A MX 2022004211 A MX2022004211 A MX 2022004211A
Authority
MX
Mexico
Prior art keywords
lfnst
basis
transform
bin
derived
Prior art date
Application number
MX2022004211A
Other languages
English (en)
Inventor
Jaehyun Lim
Moonmo Koo
Seunghwan Kim
Mehdi Salehifar
Original Assignee
Lg Electronics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lg Electronics Inc filed Critical Lg Electronics Inc
Publication of MX2022004211A publication Critical patent/MX2022004211A/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/132—Sampling, masking or truncation of coding units, e.g. adaptive resampling, frame skipping, frame interpolation or high-frequency transform coefficient masking
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or selection affected or controlled by the adaptive coding
    • H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
    • H04N19/122—Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the element, parameter or criterion affecting or controlling the adaptive coding
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/17—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object
    • H04N19/176—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a block, e.g. a macroblock
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/18—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a set of transform coefficients
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding
    • H04N19/186—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being a colour or a chrominance component
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/96—Tree coding, e.g. quad-tree coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

Un método de decodificación de imágenes de acuerdo con el presente documento puede comprender los pasos de: derivar muestras residuales aplicando al menos una de LFNST y MTS a coeficientes de transformación; y generar una imagen reconstruida sobre la base de las muestras residuales, en donde la LFNST se lleva a cabo sobre la base de un conjunto de transformación LFNST, un núcleo de LFNST incluido en el conjunto de transformación LFNST y un índice de LFNST que indica el núcleo de LFNST, un primer binario de una cadena de binarios de elementos de sintaxis para el índice de LFNST se deriva sobre la base de información de contexto diferente de acuerdo con un tipo de árbol de un bloque actual, y un segundo binario de la cadena de binarios de elementos de sintaxis se deriva sobre la base de información de contexto preconfigurada.
MX2022004211A 2019-10-08 2020-10-08 Metodo de codificacion de imagenes a base de transformacion, y dispositivo para el mismo. MX2022004211A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201962912624P 2019-10-08 2019-10-08
US201962913678P 2019-10-10 2019-10-10
PCT/KR2020/013758 WO2021071297A1 (ko) 2019-10-08 2020-10-08 변환에 기반한 영상 코딩 방법 및 그 장치

Publications (1)

Publication Number Publication Date
MX2022004211A true MX2022004211A (es) 2022-05-03

Family

ID=75437984

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2022004211A MX2022004211A (es) 2019-10-08 2020-10-08 Metodo de codificacion de imagenes a base de transformacion, y dispositivo para el mismo.

Country Status (7)

Country Link
US (1) US20220345710A1 (es)
EP (1) EP4044594A4 (es)
JP (2) JP7414977B2 (es)
KR (1) KR20220044311A (es)
CN (3) CN114762341B (es)
MX (1) MX2022004211A (es)
WO (1) WO2021071297A1 (es)

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9538172B2 (en) * 2012-04-11 2017-01-03 Qualcomm Incorporated Grouping bypass coded syntax elements in video coding
CN108632611A (zh) * 2012-06-29 2018-10-09 韩国电子通信研究院 视频解码方法、视频编码方法和计算机可读介质
CN104050628B (zh) * 2013-03-11 2017-04-12 佳能株式会社 图像处理方法和图像处理装置
CN109644276B (zh) * 2016-08-01 2022-12-30 韩国电子通信研究院 图像编码/解码方法
EP3297282A1 (en) * 2016-09-15 2018-03-21 Thomson Licensing Method and apparatus for video coding with adaptive clipping
US10880564B2 (en) * 2016-10-01 2020-12-29 Qualcomm Incorporated Transform selection for video coding
KR101997604B1 (ko) * 2019-01-22 2019-07-08 에스케이 텔레콤주식회사 영상 부호화/복호화 방법 및 장치

Also Published As

Publication number Publication date
JP2022552298A (ja) 2022-12-15
EP4044594A4 (en) 2023-08-30
EP4044594A1 (en) 2022-08-17
JP7414977B2 (ja) 2024-01-16
CN117812262A (zh) 2024-04-02
CN114762341A (zh) 2022-07-15
WO2021071297A1 (ko) 2021-04-15
CN117979005A (zh) 2024-05-03
JP2024024020A (ja) 2024-02-21
KR20220044311A (ko) 2022-04-07
CN114762341B (zh) 2024-01-16
US20220345710A1 (en) 2022-10-27

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