BR112021026535A2 - Método de codificação/decodificação de imagem, aparelho e método para transmitir fluxo de bits usando a limitação de tamanho máximo do bloco de transformação de croma - Google Patents

Método de codificação/decodificação de imagem, aparelho e método para transmitir fluxo de bits usando a limitação de tamanho máximo do bloco de transformação de croma

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Publication number
BR112021026535A2
BR112021026535A2 BR112021026535A BR112021026535A BR112021026535A2 BR 112021026535 A2 BR112021026535 A2 BR 112021026535A2 BR 112021026535 A BR112021026535 A BR 112021026535A BR 112021026535 A BR112021026535 A BR 112021026535A BR 112021026535 A2 BR112021026535 A2 BR 112021026535A2
Authority
BR
Brazil
Prior art keywords
block
current block
bit stream
decoding
image encoding
Prior art date
Application number
BR112021026535A
Other languages
English (en)
Inventor
Hak Nam Jung
Ling Li
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 BR112021026535A2 publication Critical patent/BR112021026535A2/pt

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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
    • H04N19/10—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
    • H04N19/102—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
    • H04N19/109—Selection of coding mode or of prediction mode among a plurality of temporal 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
    • H04N19/119—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
    • H04N19/12—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
    • 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
    • H04N19/186—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
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • 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
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal 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
    • H04N19/50—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

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

método de codificação/decodificação de imagem, aparelho e método para transmitir fluxo de bits usando a limitação de tamanho máximo do bloco de transformação de croma. um método e um aparelho para codificar/decodificar um vídeo são fornecidos. um método para decodificar um vídeo realizado por um aparelho de decodificação de imagem de acordo com a presente divulgação pode compreender as etapas de: determinar um modo de predição de um bloco atual; gerar um bloco de predição para o bloco atual com base na informação do modo de interpredição quando o modo de predição do bloco atual é um modo de interpredição; gerar um bloco residual do bloco atual com base em um bloco de transformação do bloco atual; e reconstruir o bloco atual com base no bloco residual do bloco atual e o bloco de predição.
BR112021026535A 2019-06-24 2020-06-24 Método de codificação/decodificação de imagem, aparelho e método para transmitir fluxo de bits usando a limitação de tamanho máximo do bloco de transformação de croma BR112021026535A2 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962865951P 2019-06-24 2019-06-24
PCT/KR2020/008233 WO2020262962A1 (ko) 2019-06-24 2020-06-24 크로마 변환 블록의 최대 크기 제한을 이용한 영상 부호화/복호화 방법, 장치 및 비트스트림을 전송하는 방법

Publications (1)

Publication Number Publication Date
BR112021026535A2 true BR112021026535A2 (pt) 2022-02-15

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Country Status (9)

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US (2) US11711519B2 (pt)
EP (1) EP3989557A4 (pt)
JP (2) JP7318024B2 (pt)
KR (1) KR20220004765A (pt)
CN (1) CN114270822A (pt)
BR (1) BR112021026535A2 (pt)
CA (1) CA3145389A1 (pt)
MX (1) MX2022000156A (pt)
WO (1) WO2020262962A1 (pt)

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WO2021167340A1 (ko) * 2020-02-17 2021-08-26 현대자동차주식회사 크로마 신호의 리샘플링에 기반하는 영상 부호화 및 복호화

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KR101269116B1 (ko) * 2010-12-14 2013-05-29 엠앤케이홀딩스 주식회사 인터 예측 부호화된 동영상 복호화 방법
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JP6341426B2 (ja) * 2012-09-10 2018-06-13 サン パテント トラスト 画像復号化方法および画像復号化装置
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KR101725287B1 (ko) * 2016-10-27 2017-04-10 삼성전자주식회사 영상 복호화 방법 및 장치
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Publication number Publication date
JP7492067B2 (ja) 2024-05-28
CA3145389A1 (en) 2020-12-30
JP2022539750A (ja) 2022-09-13
JP7318024B2 (ja) 2023-07-31
US12022083B2 (en) 2024-06-25
CN114270822A (zh) 2022-04-01
EP3989557A1 (en) 2022-04-27
WO2020262962A1 (ko) 2020-12-30
MX2022000156A (es) 2022-02-21
US20230353743A1 (en) 2023-11-02
JP2023130427A (ja) 2023-09-20
US20220201309A1 (en) 2022-06-23
KR20220004765A (ko) 2022-01-11
US11711519B2 (en) 2023-07-25
EP3989557A4 (en) 2023-05-24

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