BR112016028745A8 - Dispositivos e métodos de codificação e decodificação de imagem - Google Patents

Dispositivos e métodos de codificação e decodificação de imagem

Info

Publication number
BR112016028745A8
BR112016028745A8 BR112016028745A BR112016028745A BR112016028745A8 BR 112016028745 A8 BR112016028745 A8 BR 112016028745A8 BR 112016028745 A BR112016028745 A BR 112016028745A BR 112016028745 A BR112016028745 A BR 112016028745A BR 112016028745 A8 BR112016028745 A8 BR 112016028745A8
Authority
BR
Brazil
Prior art keywords
slice
image encoding
methods
decoding devices
image
Prior art date
Application number
BR112016028745A
Other languages
English (en)
Other versions
BR112016028745B1 (pt
BR112016028745A2 (pt
Inventor
Ohji Nakagami
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Publication of BR112016028745A2 publication Critical patent/BR112016028745A2/pt
Publication of BR112016028745A8 publication Critical patent/BR112016028745A8/pt
Publication of BR112016028745B1 publication Critical patent/BR112016028745B1/pt

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/102Methods 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
    • H04N19/103Selection of coding mode or of prediction mode
    • H04N19/105Selection 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/134Methods 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169Methods 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
    • H04N19/17Methods 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
    • H04N19/174Methods 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 slice, e.g. a line of blocks or a group of blocks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/10Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding
    • H04N19/169Methods 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
    • H04N19/17Methods 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
    • H04N19/176Methods 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/42Methods 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
    • H04N19/436Methods 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 using parallelised computational arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51Motion estimation or motion compensation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/50Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/593Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/70Methods 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N19/00Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/90Methods 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
    • H04N19/96Tree coding, e.g. quad-tree coding

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

dispositivos e métodos de codificação e decodificação de imagem a presente descrição refere-se a um aparelho e um método de codificação de imagem, e a um aparelho e um método de decodificação de imagem de acor-do com os quais a eficiência de codificação pode ser melhorada em cópia intrabloco (intrabc). na presente técnica, um exemplo no qual uma figura é dividida em quatro fatias (fatia nº 0 até fatia nº 3) é mostrado. em um caso em que uma referência a uma fatia diferente foi inibida, uma faixa de referên-cia disponível a partir de uma unidade de árvore de codificação (ctu) atual na fatia nº 2 era apenas uma parte que foi decodificada na fatia nº 2; por exemplo, os blocos da fatia nº 1 podem não ser referidos. ao contrário, em um caso da presente técnica, a faixa de referência disponível também inclui fatias diferentes das decodificadas (fatia nº 0 e fatia nº 1); por exemplo, é possível referir, a partir da ctu atual na fatia nº 2, a qualquer bloco da fatia nº 1, da forma mostrada na figura 5. a presente descrição pode ser aplicada, por exemplo, em um aparelho de processamento de imagem.
BR112016028745-2A 2014-06-20 2015-06-05 Dispositivos e métodos de codificação e decodificação de imagem BR112016028745B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2014-127683 2014-06-20
JP2014127683 2014-06-20
PCT/JP2015/066289 WO2015194394A1 (ja) 2014-06-20 2015-06-05 画像符号化装置および方法、並びに画像復号装置および方法

Publications (3)

Publication Number Publication Date
BR112016028745A2 BR112016028745A2 (pt) 2017-08-22
BR112016028745A8 true BR112016028745A8 (pt) 2021-09-14
BR112016028745B1 BR112016028745B1 (pt) 2023-07-04

Family

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Also Published As

Publication number Publication date
US20170118466A1 (en) 2017-04-27
EP3160144B1 (en) 2022-02-02
RU2690439C2 (ru) 2019-06-03
MX2019005802A (es) 2019-08-14
AU2020202419B2 (en) 2020-12-24
EP4002851A1 (en) 2022-05-25
WO2015194394A1 (ja) 2015-12-23
EP3160144A1 (en) 2017-04-26
KR20170020746A (ko) 2017-02-24
US20230224459A1 (en) 2023-07-13
RU2016148719A3 (pt) 2018-12-06
US11095879B2 (en) 2021-08-17
EP3160144A4 (en) 2017-11-15
AU2020202419A1 (en) 2020-04-30
RU2019117034A (ru) 2019-07-29
MX365273B (es) 2019-05-29
RU2016148719A (ru) 2018-06-19
JP2019195209A (ja) 2019-11-07
AU2015278082B2 (en) 2020-02-20
JP2020174400A (ja) 2020-10-22
MY180962A (en) 2020-12-14
US11627309B2 (en) 2023-04-11
MX2021015798A (es) 2023-03-07
CA2951009A1 (en) 2015-12-23
BR112016028745A2 (pt) 2017-08-22
JP6555541B2 (ja) 2019-08-07
US10701354B2 (en) 2020-06-30
CN106576176A (zh) 2017-04-19
AU2015278082A1 (en) 2017-01-12
CN111836048A (zh) 2020-10-27
JP6741126B2 (ja) 2020-08-19
KR102407030B1 (ko) 2022-06-10
US20210289196A1 (en) 2021-09-16
CN111836049A (zh) 2020-10-27
JPWO2015194394A1 (ja) 2017-04-20
US20200221080A1 (en) 2020-07-09
CN106576176B (zh) 2020-10-02
MX2016016454A (es) 2017-03-30

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Legal Events

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B06U Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

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