MX2022005495A - Método de codificación de imágenes a base de transformación y dispositivo para el mismo. - Google Patents

Método de codificación de imágenes a base de transformación y dispositivo para el mismo.

Info

Publication number
MX2022005495A
MX2022005495A MX2022005495A MX2022005495A MX2022005495A MX 2022005495 A MX2022005495 A MX 2022005495A MX 2022005495 A MX2022005495 A MX 2022005495A MX 2022005495 A MX2022005495 A MX 2022005495A MX 2022005495 A MX2022005495 A MX 2022005495A
Authority
MX
Mexico
Prior art keywords
transform
area
method based
coding method
image coding
Prior art date
Application number
MX2022005495A
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 MX2022005495A publication Critical patent/MX2022005495A/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
    • H04N19/12—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
    • H04N19/102—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
    • H04N19/129—Scanning of coding units, e.g. zig-zag scan of transform coefficients or flexible macroblock ordering [FMO]
    • 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
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • 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

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 comprende un paso de aplicar una transformación primaria inversa a un coeficiente de transformación para derivar muestras residuales para un bloque actual, en donde: la transformación primaria inversa se lleva a cabo sobre la base de un índice de MTS recibido de un flujo de bits; el índice de MTS se analiza sobre la base de un coeficiente efectivo que no existe en una segunda área que excluye la primera área superior izquierda del bloque actual; y la primera área es un área superior izquierda de 16X16 del bloque actual.
MX2022005495A 2019-11-11 2020-11-09 Método de codificación de imágenes a base de transformación y dispositivo para el mismo. MX2022005495A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201962933951P 2019-11-11 2019-11-11
US201962933972P 2019-11-11 2019-11-11
PCT/KR2020/015587 WO2021096172A1 (ko) 2019-11-11 2020-11-09 변환에 기반한 영상 코딩 방법 및 그 장치

Publications (1)

Publication Number Publication Date
MX2022005495A true MX2022005495A (es) 2022-08-04

Family

ID=75912027

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2022005495A MX2022005495A (es) 2019-11-11 2020-11-09 Método de codificación de imágenes a base de transformación y dispositivo para el mismo.

Country Status (8)

Country Link
US (1) US11949873B2 (es)
EP (1) EP4060993A4 (es)
JP (1) JP2023500732A (es)
KR (1) KR20220058582A (es)
CN (1) CN114982239A (es)
BR (1) BR112022009084A2 (es)
MX (1) MX2022005495A (es)
WO (1) WO2021096172A1 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117615155A (zh) 2019-09-19 2024-02-27 北京字节跳动网络技术有限公司 视频编解码中的参考样点位置推导
EP4026336A4 (en) * 2019-10-05 2022-12-07 Beijing Bytedance Network Technology Co., Ltd. LEVEL-BASED SIGNALING OF VIDEO CODING TOOLS
JP7391203B2 (ja) 2019-10-12 2023-12-04 北京字節跳動網絡技術有限公司 ビデオコーディングツールを洗練する使用およびシグナリング
MX2022004200A (es) 2019-10-13 2022-05-02 Beijing Bytedance Network Tech Co Ltd Interaccion entre remuestreo de imagen de referencia y herramientas de codificacion de video.

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US8526489B2 (en) * 2007-09-14 2013-09-03 General Instrument Corporation Personal video recorder
EP2154894A1 (en) 2008-08-15 2010-02-17 Thomson Licensing Video coding with coding of the locations of significant coefficients in a block of coefficients
AU2012200319B2 (en) 2012-01-19 2015-11-26 Canon Kabushiki Kaisha Method, apparatus and system for encoding and decoding the significance map for residual coefficients of a transform unit
FI2869557T3 (fi) * 2012-06-29 2023-11-02 Electronics & Telecommunications Res Inst Menetelmä ja laite kuvien koodaamiseksi/dekoodaamiseksi
WO2017043769A1 (ko) * 2015-09-10 2017-03-16 삼성전자 주식회사 부호화 장치, 복호화 장치 및 그 부호화 방법 및 복호화 방법
US10491922B2 (en) 2015-09-29 2019-11-26 Qualcomm Incorporated Non-separable secondary transform for video coding
US10771786B2 (en) * 2016-04-06 2020-09-08 Intel Corporation Method and system of video coding using an image data correction mask
CN111699682A (zh) * 2017-12-07 2020-09-22 韩国电子通信研究院 用于使用通道之间的选择性信息共享进行编码和解码的方法和设备
JP7007485B2 (ja) * 2017-12-15 2022-01-24 エルジー エレクトロニクス インコーポレイティド 非分離二次変換に基づいた画像コーディング方法及びその装置
CA3088026C (en) * 2017-12-15 2023-10-03 Lg Electronics Inc. Image coding method on basis of transformation and device therefor
US11425390B2 (en) * 2018-01-26 2022-08-23 Electronics And Telecommunications Research Institute Method and apparatus for image encoding and image decoding using temporal motion information
WO2019189346A1 (ja) * 2018-03-30 2019-10-03 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ 符号化装置、復号装置、符号化方法及び復号方法
WO2019194505A1 (ko) * 2018-04-01 2019-10-10 엘지전자 주식회사 축소된 회전기반 변환을 이용하여 비디오 신호를 처리하는 방법 및 장치
KR101969933B1 (ko) 2018-05-28 2019-04-17 삼성전자주식회사 레지듀얼 블록의 부호화 방법 및 장치, 복호화 방법 및 장치
CN110365982B (zh) * 2019-07-31 2022-01-04 中南大学 一种多用途编码中帧内编码的多变换选择加速方法
AU2019275553B2 (en) * 2019-12-03 2022-10-06 Canon Kabushiki Kaisha Method, apparatus and system for encoding and decoding a coding tree unit

Also Published As

Publication number Publication date
WO2021096172A1 (ko) 2021-05-20
US11949873B2 (en) 2024-04-02
CN114982239A (zh) 2022-08-30
EP4060993A1 (en) 2022-09-21
US20230007264A1 (en) 2023-01-05
KR20220058582A (ko) 2022-05-09
EP4060993A4 (en) 2023-12-13
BR112022009084A2 (pt) 2022-07-26
JP2023500732A (ja) 2023-01-10

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