MX2022005103A - Método de codificación de imágenes a base de transformación y aparato para el mismo. - Google Patents

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

Info

Publication number
MX2022005103A
MX2022005103A MX2022005103A MX2022005103A MX2022005103A MX 2022005103 A MX2022005103 A MX 2022005103A MX 2022005103 A MX2022005103 A MX 2022005103A MX 2022005103 A MX2022005103 A MX 2022005103A MX 2022005103 A MX2022005103 A MX 2022005103A
Authority
MX
Mexico
Prior art keywords
intra prediction
prediction mode
chroma block
basis
transform
Prior art date
Application number
MX2022005103A
Other languages
English (en)
Inventor
Jaehyun Lim
Moonmo Koo
Hyeongmoon Jang
Seunghwan Kim
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 MX2022005103A publication Critical patent/MX2022005103A/es

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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
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive 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
    • H04N19/70—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
    • H04N19/10—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
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/11—Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
    • 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
    • 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
    • H04N19/134—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
    • H04N19/159—Prediction type, e.g. intra-frame, inter-frame or bidirectional frame prediction
    • 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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/593—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques

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  • 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 para la decodificación de imágenes, de acuerdo el presente documento, puede comprender los pasos de: derivar un modo de intra predicción de un bloque de croma como un modo de modelo lineal de componentes cruzados (CCLM); actualizar el modo de intra predicción del bloque de croma sobre la base de un modo de intra predicción de un bloque de luma correspondiente al bloque de croma; y determinar un conjunto de LFNST que incluya matrices de LFNST sobre la base del modo de intra predicción actualizado, en donde el modo de intra predicción actualizado se deriva como un modo de intra predicción correspondiente a una posición específica en el bloque de luma, y la posición específica se establece sobre la base de un formato de color del bloque de croma.
MX2022005103A 2019-10-29 2020-10-29 Método de codificación de imágenes a base de transformación y aparato para el mismo. MX2022005103A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962927667P 2019-10-29 2019-10-29
PCT/KR2020/014914 WO2021086055A1 (ko) 2019-10-29 2020-10-29 변환에 기반한 영상 코딩 방법 및 그 장치

Publications (1)

Publication Number Publication Date
MX2022005103A true MX2022005103A (es) 2022-07-11

Family

ID=75716066

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Application Number Title Priority Date Filing Date
MX2022005103A MX2022005103A (es) 2019-10-29 2020-10-29 Método de codificación de imágenes a base de transformación y aparato para el mismo.

Country Status (10)

Country Link
US (2) US11758142B2 (es)
EP (1) EP4054196A4 (es)
JP (3) JP7223208B2 (es)
KR (2) KR20230062685A (es)
CN (5) CN118175336A (es)
AU (2) AU2020376686B2 (es)
BR (1) BR112022007946A2 (es)
CA (1) CA3159068A1 (es)
MX (1) MX2022005103A (es)
WO (1) WO2021086055A1 (es)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021052804A1 (en) * 2019-09-16 2021-03-25 Interdigital Vc Holdings France, Sas Secondary transform for fast video encoder
CN117459742A (zh) * 2019-09-21 2024-01-26 Lg电子株式会社 编码/解码设备及数据发送设备
WO2023219290A1 (ko) * 2022-05-13 2023-11-16 현대자동차주식회사 크로마 성분별 인트라 예측모드의 부호화를 위한 방법 및 장치
WO2024053963A1 (ko) * 2022-09-05 2024-03-14 현대자동차주식회사 영상 부호화/복호화 방법, 장치 및 비트스트림을 저장한 기록 매체

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US9860559B2 (en) * 2014-03-17 2018-01-02 Mediatek Singapore Pte. Ltd. Method of video coding using symmetric intra block copy
US9918105B2 (en) * 2014-10-07 2018-03-13 Qualcomm Incorporated Intra BC and inter unification
KR20180010260A (ko) * 2015-06-03 2018-01-30 미디어텍 인크. 화상 및 비디오 데이터의 팔레트 코딩 방법
WO2017203930A1 (en) * 2016-05-27 2017-11-30 Sharp Kabushiki Kaisha Systems and methods for varying quantization parameters
US11039147B2 (en) * 2016-05-28 2021-06-15 Mediatek Inc. Method and apparatus of palette mode coding for colour video data
WO2018064948A1 (en) * 2016-10-04 2018-04-12 Mediatek Inc. Method and apparatus for intra chroma coding in image and video coding
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WO2018174402A1 (ko) * 2017-03-21 2018-09-27 엘지전자 주식회사 영상 코딩 시스템에서 변환 방법 및 그 장치
WO2018174357A1 (ko) 2017-03-22 2018-09-27 엘지전자 주식회사 영상 코딩 시스템에서 영상 디코딩 방법 및 장치
CN118075473A (zh) * 2017-11-28 2024-05-24 Lx 半导体科技有限公司 图像编码/解码方法、图像数据的传输方法和存储介质
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Also Published As

Publication number Publication date
KR20220057613A (ko) 2022-05-09
US20230379473A1 (en) 2023-11-23
CN118175338A (zh) 2024-06-11
CN118175335A (zh) 2024-06-11
AU2020376686A1 (en) 2022-06-16
JP7408856B2 (ja) 2024-01-05
CN118175336A (zh) 2024-06-11
AU2023203790A1 (en) 2023-07-13
JP2022546634A (ja) 2022-11-04
CA3159068A1 (en) 2021-05-06
KR20230062685A (ko) 2023-05-09
KR102529117B1 (ko) 2023-05-04
EP4054196A4 (en) 2023-12-13
US11758142B2 (en) 2023-09-12
CN114846798B (zh) 2024-04-05
CN114846798A (zh) 2022-08-02
US20220264101A1 (en) 2022-08-18
BR112022007946A2 (pt) 2022-07-12
JP2023041899A (ja) 2023-03-24
EP4054196A1 (en) 2022-09-07
WO2021086055A1 (ko) 2021-05-06
JP7223208B2 (ja) 2023-02-15
JP2024026419A (ja) 2024-02-28
AU2020376686B2 (en) 2023-03-16
CN118175337A (zh) 2024-06-11

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