BR122019025404B8 - Aparelho de codificação de imagem, método de codificação de imagem, aparelho de decodificação de imagem, método de decodificação de imagem e meio de armazenamento - Google Patents

Aparelho de codificação de imagem, método de codificação de imagem, aparelho de decodificação de imagem, método de decodificação de imagem e meio de armazenamento

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Publication number
BR122019025404B8
BR122019025404B8 BR122019025404A BR122019025404A BR122019025404B8 BR 122019025404 B8 BR122019025404 B8 BR 122019025404B8 BR 122019025404 A BR122019025404 A BR 122019025404A BR 122019025404 A BR122019025404 A BR 122019025404A BR 122019025404 B8 BR122019025404 B8 BR 122019025404B8
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Brazil
Prior art keywords
image
block
image coding
block size
target block
Prior art date
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BR122019025404A
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English (en)
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BR122019025404B1 (pt
BR122019025404A2 (pt
Inventor
Kobayashi Masaaki
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Canon Kk
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Application filed by Canon Kk filed Critical Canon Kk
Publication of BR122019025404A2 publication Critical patent/BR122019025404A2/pt
Publication of BR122019025404B1 publication Critical patent/BR122019025404B1/pt
Publication of BR122019025404B8 publication Critical patent/BR122019025404B8/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
    • H04N19/50—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
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T1/00—General purpose image data processing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N11/00—Colour television systems
    • H04N11/02—Colour television systems with bandwidth reduction
    • 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
    • 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
    • H04N19/124—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
    • H04N19/134—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
    • H04N19/136—Incoming video signal characteristics or properties
    • 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
    • H04N19/189—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding
    • H04N19/196—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters
    • 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
    • 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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using 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
    • H04N19/91—Entropy coding, e.g. variable length coding [VLC] or arithmetic 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
    • H04N19/13—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
    • H04N19/90—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)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computing Systems (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

Trata-se de um método de codificação de imagem para um aparelho de codificação de imagem ajustado para dividir uma imagem em blocos divisionais de uma pluralidade de tamanhos e realizar a codificação na imagem enquanto controla a qualidade de imagem de acordo com um valor de parâmetro em unidades de blocos divisionais que inclui obter um tamanho de bloco de um bloco-alvo a ser codificado, obter um tamanho de bloco mínimo usado para controlar o valor de parâmetro, obter um estado de divisão do bloco-alvo, obter o valor de parâmetro, determinar se o bloco-alvo está ou não dividido de acordo com o estado de divisão do bloco-alvo, determinar se o tamanho de bloco do bloco-alvo é maior ou igual ao tamanho de bloco mínimo; determinar se o tamanho de bloco do bloco-alvo é igual ao tamanho de bloco mínimo, e codificar o valor de parâmetro obtido.
BR122019025404A 2011-01-13 2012-01-12 Aparelho de codificação de imagem, método de codificação de imagem, aparelho de decodificação de imagem, método de decodificação de imagem e meio de armazenamento BR122019025404B8 (pt)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2011004648 2011-01-13
JP2011-004648 2011-01-13
PCT/JP2012/000151 WO2012096181A1 (en) 2011-01-13 2012-01-12 Image coding apparatus, image coding method, and program, and image decoding apparatus, image decoding method, and program
BR112013017952-0A BR112013017952B1 (pt) 2011-01-13 2012-01-12 Aparelho e método de codificação de imagem e aparelho e método de decodificação de imagem

Publications (3)

Publication Number Publication Date
BR122019025404A2 BR122019025404A2 (pt) 2020-02-18
BR122019025404B1 BR122019025404B1 (pt) 2022-10-11
BR122019025404B8 true BR122019025404B8 (pt) 2023-05-02

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BR122019025405A BR122019025405B8 (pt) 2011-01-13 2012-01-12 Aparelho de codificação de imagem, método de codificação de imagem, aparelho de decodificação de imagem, método de decodificação de imagem e meio de armazenamento
BR122022013139-5A BR122022013139B1 (pt) 2011-01-13 2012-01-12 Aparelho e método de decodificação de imagem
BR122019025406-0A BR122019025406B1 (pt) 2011-01-13 2012-01-12 Aparelho de codificação de imagem, método de codificação de imagem, aparelho de decodificação de imagem, método de decodificação de imagem e meio de armazenamento
BR112013017952-0A BR112013017952B1 (pt) 2011-01-13 2012-01-12 Aparelho e método de codificação de imagem e aparelho e método de decodificação de imagem
BR122019025407A BR122019025407B8 (pt) 2011-01-13 2012-01-12 Aparelho de codificação de imagem, método de codificação de imagem, aparelho de decodificação de imagem, método de decodificação de imagem e meio de armazenamento
BR122019025404A BR122019025404B8 (pt) 2011-01-13 2012-01-12 Aparelho de codificação de imagem, método de codificação de imagem, aparelho de decodificação de imagem, método de decodificação de imagem e meio de armazenamento

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BR122019025405A BR122019025405B8 (pt) 2011-01-13 2012-01-12 Aparelho de codificação de imagem, método de codificação de imagem, aparelho de decodificação de imagem, método de decodificação de imagem e meio de armazenamento
BR122022013139-5A BR122022013139B1 (pt) 2011-01-13 2012-01-12 Aparelho e método de decodificação de imagem
BR122019025406-0A BR122019025406B1 (pt) 2011-01-13 2012-01-12 Aparelho de codificação de imagem, método de codificação de imagem, aparelho de decodificação de imagem, método de decodificação de imagem e meio de armazenamento
BR112013017952-0A BR112013017952B1 (pt) 2011-01-13 2012-01-12 Aparelho e método de codificação de imagem e aparelho e método de decodificação de imagem
BR122019025407A BR122019025407B8 (pt) 2011-01-13 2012-01-12 Aparelho de codificação de imagem, método de codificação de imagem, aparelho de decodificação de imagem, método de decodificação de imagem e meio de armazenamento

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US (6) US9445094B2 (pt)
EP (5) EP3905680B1 (pt)
JP (6) JP5963446B2 (pt)
KR (5) KR101888515B1 (pt)
CN (6) CN106454362B (pt)
BR (6) BR122019025405B8 (pt)
ES (5) ES2883132T3 (pt)
HU (5) HUE060051T2 (pt)
PL (5) PL3905680T3 (pt)
RU (5) RU2551801C2 (pt)
WO (1) WO2012096181A1 (pt)

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