MX2021012063A - Codificador, decodificador, metodo de codificacion y metodo de decodificacion. - Google Patents

Codificador, decodificador, metodo de codificacion y metodo de decodificacion.

Info

Publication number
MX2021012063A
MX2021012063A MX2021012063A MX2021012063A MX2021012063A MX 2021012063 A MX2021012063 A MX 2021012063A MX 2021012063 A MX2021012063 A MX 2021012063A MX 2021012063 A MX2021012063 A MX 2021012063A MX 2021012063 A MX2021012063 A MX 2021012063A
Authority
MX
Mexico
Prior art keywords
prediction
transform
image
result
encoding
Prior art date
Application number
MX2021012063A
Other languages
English (en)
Inventor
Yusuke Kato
Tadamasa Toma
Takahiro Nishi
Kiyofumi Abe
Original Assignee
Panasonic Ip Corp America
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 Panasonic Ip Corp America filed Critical Panasonic Ip Corp America
Publication of MX2021012063A publication Critical patent/MX2021012063A/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
    • H04N19/169—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
    • H04N19/102—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
    • H04N19/102—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
    • H04N19/124—Quantisation
    • H04N19/126—Details of normalisation or weighting functions, e.g. normalisation matrices or variable uniform quantisers
    • 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
    • H04N19/186—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
    • H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
    • H04N19/423—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements
    • 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
    • H04N19/60—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
    • H04N19/60—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

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

El codificador deriva un error de predicción de la imagen restando, de la imagen, una imagen de predicción generada usando intra predicción o inter predicción (S311); lleva a cabo una transformada primaria sobre el error de predicción (S312) y lleva a cabo una transformada secundaria sobre un resultado de la transformada primaria (S312); lleva a cabo la cuantificación de un resultado de la transformada secundaria (S313); y codifica un resultado de la cuantificación como datos de la imagen (S314). En la realización de la transformada secundaria, cuando se usa una intra predicción ponderada matricial (MIP), esta genera la imagen de predicción al llevar a cabo un cálculo matricial en un flujo de píxeles obtenida a partir de los valores de píxeles de los píxeles circundantes de un bloque actual, y el conjunto de transformadas para la transformada secundaria se aplica a los coeficientes de transformada primaria obtenidos del resultado de la transformada primaria (S312).
MX2021012063A 2019-04-16 2020-04-16 Codificador, decodificador, metodo de codificacion y metodo de decodificacion. MX2021012063A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962834715P 2019-04-16 2019-04-16
PCT/JP2020/016704 WO2020213677A1 (ja) 2019-04-16 2020-04-16 符号化装置、復号装置、符号化方法及び復号方法

Publications (1)

Publication Number Publication Date
MX2021012063A true MX2021012063A (es) 2021-11-03

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
MX2021012063A MX2021012063A (es) 2019-04-16 2020-04-16 Codificador, decodificador, metodo de codificacion y metodo de decodificacion.

Country Status (11)

Country Link
US (1) US20220030242A1 (es)
EP (1) EP3958561A4 (es)
JP (3) JP7214846B2 (es)
KR (1) KR20210145762A (es)
CN (5) CN117896523A (es)
AU (1) AU2020259889A1 (es)
BR (1) BR112021017420A2 (es)
CA (1) CA3135146A1 (es)
MX (1) MX2021012063A (es)
SG (1) SG11202111094YA (es)
WO (1) WO2020213677A1 (es)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102470696B1 (ko) 2019-04-16 2022-11-28 엘지전자 주식회사 영상 코딩에서 매트릭스 기반의 인트라 예측을 위한 변환
BR112021020758A2 (pt) * 2019-04-16 2021-12-14 Lg Electronics Inc Codificação de imagem usando índice de transformada
EP4322531A3 (en) * 2019-04-17 2024-04-10 Huawei Technologies Co., Ltd. An encoder, a decoder and corresponding methods harmonizing matrix-based intra prediction and secoundary core selection
WO2020226424A1 (ko) * 2019-05-08 2020-11-12 엘지전자 주식회사 Mip 및 lfnst를 수행하는 영상 부호화/복호화 방법, 장치 및 비트스트림을 전송하는 방법
JP7362786B2 (ja) * 2019-06-13 2023-10-17 エルジー エレクトロニクス インコーポレイティド 単純化されたｍｐｍリスト生成方法を用いる画像符号化／復号化方法、装置、及びビットストリームを伝送する方法
CN114424544A (zh) * 2019-09-19 2022-04-29 瑞典爱立信有限公司 允许基于矩阵的帧内预测块具有多个变换块

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EP2437499A4 (en) * 2009-05-29 2013-01-23 Mitsubishi Electric Corp ENCODER AND VIDEO DECODER, VIDEO ENCODING AND DECODING METHOD
WO2011083573A1 (ja) * 2010-01-07 2011-07-14 株式会社 東芝 動画像符号化装置及び動画像復号化装置
US10491922B2 (en) * 2015-09-29 2019-11-26 Qualcomm Incorporated Non-separable secondary transform for video coding
US10277896B2 (en) * 2016-01-22 2019-04-30 Apple Inc. Intra-frame prediction systems and methods
CN117014630A (zh) * 2017-04-27 2023-11-07 松下电器（美国）知识产权公司 解码方法、编码方法以及发送方法
JP2019017066A (ja) * 2017-07-03 2019-01-31 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Ｐａｎａｓｏｎｉｃ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｃｏｒｐｏｒａｔｉｏｎ ｏｆ Ａｍｅｒｉｃａ 符号化装置、復号装置、符号化方法及び復号方法
TWI761551B (zh) * 2017-07-13 2022-04-21 美商松下電器（美國）知識產權公司 編碼裝置、編碼方法、解碼裝置及解碼方法
WO2020207493A1 (en) * 2019-04-12 2020-10-15 Beijing Bytedance Network Technology Co., Ltd. Transform coding based on matrix-based intra prediction

Also Published As

Publication number Publication date
EP3958561A4 (en) 2022-08-10
CN117896523A (zh) 2024-04-16
WO2020213677A1 (ja) 2020-10-22
CN117834872A (zh) 2024-04-05
CA3135146A1 (en) 2020-10-22
CN113678443B (zh) 2024-01-19
JP2023033537A (ja) 2023-03-10
CN113678443A (zh) 2021-11-19
CN117834871A (zh) 2024-04-05
KR20210145762A (ko) 2021-12-02
CN117834873A (zh) 2024-04-05
JPWO2020213677A1 (es) 2020-10-22
SG11202111094YA (en) 2021-11-29
AU2020259889A1 (en) 2021-11-11
EP3958561A1 (en) 2022-02-23
JP7214846B2 (ja) 2023-01-30
JP2024003226A (ja) 2024-01-11
US20220030242A1 (en) 2022-01-27
JP7389283B2 (ja) 2023-11-29
BR112021017420A2 (pt) 2022-02-01

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