MX2021012730A - Transformacion para intra-prediccion en base a matriz en la codificacion de imagen. - Google Patents

Transformacion para intra-prediccion en base a matriz en la codificacion de imagen.

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Publication number
MX2021012730A
MX2021012730A MX2021012730A MX2021012730A MX2021012730A MX 2021012730 A MX2021012730 A MX 2021012730A MX 2021012730 A MX2021012730 A MX 2021012730A MX 2021012730 A MX2021012730 A MX 2021012730A MX 2021012730 A MX2021012730 A MX 2021012730A
Authority
MX
Mexico
Prior art keywords
transform
basis
current block
transform coefficients
prediction
Prior art date
Application number
MX2021012730A
Other languages
English (en)
Inventor
Jaehyun Lim
Moonmo Koo
Junghak Nam
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 MX2021012730A publication Critical patent/MX2021012730A/es

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    • 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
    • H04N19/10—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
    • 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
    • H04N19/102—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
    • H04N19/119—Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
    • 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
    • H04N19/132—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
    • H04N19/10—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
    • H04N19/50—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
    • 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

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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 de codificación de imágenes de acuerdo con el presente documento comprende los pasos de: derivar coeficientes de transformación para un bloque actual sobre la base de información relacionada con los residuos; y generar muestras residuales del bloque actual sobre la base de los coeficientes de transformación. La información relacionada con los residuos comprende información de índice de transformación no separable de baja frecuencia (LFNST), que muestra información relativa a la transformación no separable para los coeficientes de transformación de baja frecuencia del bloque actual, sobre la base de una bandera de intra predicción en base a matriz (MIP) que muestra si la MIP se aplica o no al bloque actual. Las muestras residuales se generan a partir de los coeficientes de transformación sobre la base de la información del índice LFNST.
MX2021012730A 2019-04-16 2020-04-16 Transformacion para intra-prediccion en base a matriz en la codificacion de imagen. MX2021012730A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962834946P 2019-04-16 2019-04-16
PCT/KR2020/005076 WO2020213944A1 (ko) 2019-04-16 2020-04-16 영상 코딩에서 매트릭스 기반의 인트라 예측을 위한 변환

Publications (1)

Publication Number Publication Date
MX2021012730A true MX2021012730A (es) 2022-01-06

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MX2021012730A MX2021012730A (es) 2019-04-16 2020-04-16 Transformacion para intra-prediccion en base a matriz en la codificacion de imagen.

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US (2) US11558641B2 (es)
EP (2) EP3944618B1 (es)
JP (3) JP7197727B2 (es)
KR (2) KR102470696B1 (es)
CN (5) CN116684613A (es)
AU (2) AU2020257796B2 (es)
BR (1) BR112021020764A2 (es)
CA (2) CA3240493A1 (es)
ES (1) ES2969115T3 (es)
FI (1) FI3944618T3 (es)
HR (1) HRP20231634T1 (es)
HU (1) HUE064847T2 (es)
MX (1) MX2021012730A (es)
PL (1) PL3944618T3 (es)
SI (1) SI3944618T1 (es)
WO (1) WO2020213944A1 (es)

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JP2022539768A (ja) * 2019-07-07 2022-09-13 オッポ広東移動通信有限公司 画像予測方法、エンコーダ、デコーダ及び記憶媒体
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AU2020257796A1 (en) 2021-12-16
JP7375151B2 (ja) 2023-11-07
CA3240493A1 (en) 2020-10-22
EP4287620A2 (en) 2023-12-06
CN116684614A (zh) 2023-09-01
CN116684613A (zh) 2023-09-01
US20220038741A1 (en) 2022-02-03
CA3137181A1 (en) 2020-10-22
SI3944618T1 (sl) 2024-04-30
EP3944618A1 (en) 2022-01-26
CN116684611A (zh) 2023-09-01
ES2969115T3 (es) 2024-05-16
AU2024200619A1 (en) 2024-02-22
KR20220162847A (ko) 2022-12-08
CN113826395B (zh) 2023-06-30
US11831912B2 (en) 2023-11-28
KR20210130816A (ko) 2021-11-01
JP2023025271A (ja) 2023-02-21
FI3944618T3 (fi) 2024-01-11
US11558641B2 (en) 2023-01-17
JP7197727B2 (ja) 2022-12-27
JP2022529686A (ja) 2022-06-23
AU2020257796B2 (en) 2023-11-02
BR112021020764A2 (pt) 2021-12-14
PL3944618T3 (pl) 2024-03-11
EP4287620A3 (en) 2024-02-14
CN116684612A (zh) 2023-09-01
US20230047743A1 (en) 2023-02-16
EP3944618B1 (en) 2023-12-06
CN113826395A (zh) 2021-12-21
HUE064847T2 (hu) 2024-04-28
EP3944618A4 (en) 2022-05-11
KR102470696B1 (ko) 2022-11-28
HRP20231634T1 (hr) 2024-03-15
WO2020213944A1 (ko) 2020-10-22
JP2023175021A (ja) 2023-12-08

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