BR112021006238A2 - método de decodificação de vídeo e método de codificação de vídeo - Google Patents

método de decodificação de vídeo e método de codificação de vídeo

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Publication number
BR112021006238A2
BR112021006238A2 BR112021006238A BR112021006238A BR112021006238A2 BR 112021006238 A2 BR112021006238 A2 BR 112021006238A2 BR 112021006238 A BR112021006238 A BR 112021006238A BR 112021006238 A BR112021006238 A BR 112021006238A BR 112021006238 A2 BR112021006238 A2 BR 112021006238A2
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BR
Brazil
Prior art keywords
current block
intraprediction
video
decoding method
intraprediction mode
Prior art date
Application number
BR112021006238A
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English (en)
Inventor
Keun Lee Bae
Original Assignee
Guangdong Oppo Mobile Telecommunications Corp Ltd
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Publication date
Application filed by Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Publication of BR112021006238A2 publication Critical patent/BR112021006238A2/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
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/105—Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for 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
    • H04N19/46—Embedding additional information in the video signal during the compression process
    • H04N19/463—Embedding additional information in the video signal during the compression process by compressing encoding parameters before transmission
    • 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
    • H04N19/119—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
    • H04N19/102—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
    • 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
    • H04N19/102—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
    • H04N19/134—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
    • H04N19/60—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
    • H04N19/90—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
    • H04N19/94—Vector quantisation
    • 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)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)

Abstract

método de decodificação de vídeo e método de codificação de vídeo. trata-se de um método de decodificação de imagem de acordo com a presente invenção que inclui: uma etapa para determinar uma linha de amostra de referência de um bloco atual; uma etapa para determinar se modos intrapredição candidatos idênticos ao modo de intrapredição do bloco atual existem; uma etapa para derivar o modo de intrapredição do bloco atual com base na determinação; e uma etapa para executar a intrapredição no bloco atual com base na linha de amostra de referência e o modo de intrapredição. aqui, pelo menos um dos modos de intrapredição candidatos pode ser derivado adicionando ou subtraindo um deslocamento para ou a partir do valor máximo entre o modo de intrapredição de um bloco vizinho que está acima do bloco atual e o modo de intrapredição de um bloco vizinho que está à esquerda do bloco atual.
BR112021006238A 2018-10-12 2019-10-11 método de decodificação de vídeo e método de codificação de vídeo BR112021006238A2 (pt)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20180121757 2018-10-12
KR20180121713 2018-10-12
KR20190006611 2019-01-18
PCT/KR2019/013384 WO2020076125A1 (ko) 2018-10-12 2019-10-11 영상 신호 부호화/복호화 방법 및 이를 위한 장치

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BR112021006238A2 true BR112021006238A2 (pt) 2021-07-06

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US (5) US11252403B2 (pt)
EP (2) EP4336830A3 (pt)
JP (3) JP7430716B2 (pt)
KR (1) KR20200041810A (pt)
CN (5) CN116347072A (pt)
AU (1) AU2019358651A1 (pt)
BR (1) BR112021006238A2 (pt)
CA (1) CA3113861A1 (pt)
CL (1) CL2021000796A1 (pt)
IL (2) IL281823B2 (pt)
MX (1) MX2021003981A (pt)
PH (1) PH12021550624A1 (pt)
SG (1) SG11202103208PA (pt)
WO (1) WO2020076125A1 (pt)
ZA (1) ZA202101991B (pt)

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JP2022504552A (ja) 2022-01-13
IL305173A (en) 2023-10-01
CN116347072A (zh) 2023-06-27
US11252403B2 (en) 2022-02-15
EP4336830A2 (en) 2024-03-13
WO2020076125A1 (ko) 2020-04-16
EP4336830A3 (en) 2024-05-22
IL281823B1 (en) 2023-09-01
AU2019358651A1 (en) 2021-04-15
US20240007618A1 (en) 2024-01-04
US20210227208A1 (en) 2021-07-22
US20240007617A1 (en) 2024-01-04
CN116320407A (zh) 2023-06-23
IL281823B2 (en) 2024-01-01
KR20200041810A (ko) 2020-04-22
MX2021003981A (es) 2021-05-27
CN113225559A (zh) 2021-08-06
US20240007616A1 (en) 2024-01-04
IL281823A (en) 2021-05-31
US20220094912A1 (en) 2022-03-24
EP3840387B1 (en) 2024-03-06
EP3840387A4 (en) 2021-12-08
CL2021000796A1 (es) 2021-09-24
CA3113861A1 (en) 2020-04-16
JP7430716B2 (ja) 2024-02-13
JP2024042015A (ja) 2024-03-27
EP3840387A1 (en) 2021-06-23
CN113225559B (zh) 2023-05-16
JP2024042028A (ja) 2024-03-27
SG11202103208PA (en) 2021-04-29
ZA202101991B (en) 2022-07-27
PH12021550624A1 (en) 2022-02-14
CN112930685A (zh) 2021-06-08
CN116320406A (zh) 2023-06-23

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