BR112014031146A8 - Método de codificação de imagem, método de decodificação de imagem, aparelho de codificação de imagem, aparelho de decodificação de imagem e aparelho de codificação e decodificação de imagem - Google Patents

Método de codificação de imagem, método de decodificação de imagem, aparelho de codificação de imagem, aparelho de decodificação de imagem e aparelho de codificação e decodificação de imagem

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Publication number
BR112014031146A8
BR112014031146A8 BR112014031146A BR112014031146A BR112014031146A8 BR 112014031146 A8 BR112014031146 A8 BR 112014031146A8 BR 112014031146 A BR112014031146 A BR 112014031146A BR 112014031146 A BR112014031146 A BR 112014031146A BR 112014031146 A8 BR112014031146 A8 BR 112014031146A8
Authority
BR
Brazil
Prior art keywords
image
coding
flag
image coding
decoding
Prior art date
Application number
BR112014031146A
Other languages
English (en)
Other versions
BR112014031146B1 (pt
BR112014031146A2 (pt
Inventor
Shibahara Youji
Matsunobu Toru
Terada Kengo
Sugio Toshiyasu
Nishi Takahiro
Tanikawa Kyoko
Sasai Hisao
Original Assignee
Sun Patent Trust
Panasonic Ip Corp America
Velos Media Int Ltd
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 Sun Patent Trust, Panasonic Ip Corp America, Velos Media Int Ltd filed Critical Sun Patent Trust
Publication of BR112014031146A2 publication Critical patent/BR112014031146A2/pt
Publication of BR112014031146A8 publication Critical patent/BR112014031146A8/pt
Publication of BR112014031146B1 publication Critical patent/BR112014031146B1/pt

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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
    • H04N19/90—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
    • 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
    • H04N19/90—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
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/40—Conversion to or from variable length codes, e.g. Shannon-Fano code, Huffman code, Morse code
    • H03M7/4006—Conversion to or from arithmetic code
    • 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
    • H04N19/18—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 set of transform coefficients
    • 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
    • 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
    • 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
    • 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
    • H04N19/172—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 picture, frame or field

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

MÉTODO DE CODIFICAÇÃO DE IMAGEM, MÉTODO DE DECODIFICAÇÃO DE IMAGEM, APARELHO DE CODIFICAÇÃO DE IMAGEM, APARELHO DE DECODIFICAÇÃO DE IMAGEM E APARELHO DE CODIFICAÇÃO E DECODIFICAÇÃO DE IMAGEM. A presente invenção refere-se a um método de codificação de imagem que usa codificação aritmética. O método inclui: desempenhar codificação aritmética em um primeiro indicador (greater1_flag) que indica quanto a se um valor absoluto de um coeficiente alvo em um bloco de coeficiente alvo é ou não maior do que 1 (S701); e desempenhar codificação aritmética em um segundo indicador (greater2_flag) que indica quanto a se o valor absoluto é maior que 2 (S702). Na codificação aritmética no primeiro indicador e a codificação aritmética no segundo indicador, é determinado quanto a se um bloco de coeficiente imediatamente anterior que foi codificado imediatamente anterior ao bloco de coeficiente alvo inclui um coeficiente que tem um valor absoluto maior que o valor limite (S711). Com base em um resultado da determinação, contextos respectivos a serem usados na codificação aritmética nos primeiro e segundo indicadores são selecionados (S712).
BR112014031146-3A 2012-06-22 2013-06-07 Método de codificação de imagem que usa codificação aritmética, método de decodificação de imagem usa decodificação aritmética, aparelho de codificação de imagem e aparelho de decodificação de imagem BR112014031146B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201261663121P 2012-06-22 2012-06-22
US61/663,121 2012-06-22
PCT/JP2013/003607 WO2013190796A1 (ja) 2012-06-22 2013-06-07 画像符号化方法、画像復号方法、画像符号化装置、画像復号装置及び画像符号化復号装置

Publications (3)

Publication Number Publication Date
BR112014031146A2 BR112014031146A2 (pt) 2017-08-08
BR112014031146A8 true BR112014031146A8 (pt) 2018-02-06
BR112014031146B1 BR112014031146B1 (pt) 2023-05-16

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BR112014031146-3A BR112014031146B1 (pt) 2012-06-22 2013-06-07 Método de codificação de imagem que usa codificação aritmética, método de decodificação de imagem usa decodificação aritmética, aparelho de codificação de imagem e aparelho de decodificação de imagem

Country Status (15)

Country Link
US (4) US9264712B2 (pt)
EP (1) EP2866444B1 (pt)
JP (5) JP5603525B2 (pt)
KR (2) KR102073399B1 (pt)
CN (4) CN107749992B (pt)
AR (2) AR091537A1 (pt)
AU (3) AU2013278760B2 (pt)
BR (1) BR112014031146B1 (pt)
CA (1) CA2875196C (pt)
MX (1) MX339710B (pt)
MY (2) MY167469A (pt)
RU (2) RU2680749C2 (pt)
SG (2) SG11201408361TA (pt)
TW (1) TWI565297B (pt)
WO (1) WO2013190796A1 (pt)

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MY167469A (en) 2018-08-29
JP5603525B2 (ja) 2014-10-08
MX2014014880A (es) 2015-03-09
US10687084B2 (en) 2020-06-16
SG11201408361TA (en) 2015-01-29
RU2014150558A (ru) 2016-08-10
EP2866444A4 (en) 2015-06-24
JP6145750B2 (ja) 2017-06-14
KR20150024835A (ko) 2015-03-09
US20180167642A1 (en) 2018-06-14
RU2680749C2 (ru) 2019-02-26
TW201412125A (zh) 2014-03-16
CN107749992A (zh) 2018-03-02
CN107734344A (zh) 2018-02-23
JP6633136B2 (ja) 2020-01-22
AU2018282369A1 (en) 2019-01-17
EP2866444A1 (en) 2015-04-29
AU2017200514B2 (en) 2018-12-06
RU2017136413A (ru) 2019-02-08
JP6352488B2 (ja) 2018-07-04
JP2020043610A (ja) 2020-03-19
US20130343463A1 (en) 2013-12-26
JP2017147745A (ja) 2017-08-24
JPWO2013190796A1 (ja) 2016-02-08
US9596487B2 (en) 2017-03-14
CN107734344B (zh) 2021-06-29
US20170094318A1 (en) 2017-03-30
CA2875196A1 (en) 2013-12-27
RU2017136413A3 (pt) 2019-02-08
BR112014031146B1 (pt) 2023-05-16
JP7003100B2 (ja) 2022-01-20
CN107749992B (zh) 2020-06-09
WO2013190796A1 (ja) 2013-12-27
TWI565297B (zh) 2017-01-01
RU2635895C2 (ru) 2017-11-16
JP2014225905A (ja) 2014-12-04
KR102073399B1 (ko) 2020-02-05
CN104350747B (zh) 2017-11-21
US20160050444A1 (en) 2016-02-18
EP2866444B1 (en) 2022-04-13
AU2018282369B2 (en) 2020-09-10
SG10201505418UA (en) 2015-08-28
CN107809645B (zh) 2021-12-03
AU2013278760B2 (en) 2016-10-27
BR112014031146A2 (pt) 2017-08-08
MX339710B (es) 2016-06-07
US9264712B2 (en) 2016-02-16
AU2017200514A1 (en) 2017-02-16
MY193123A (en) 2022-09-26
CN104350747A (zh) 2015-02-11
RU2019103984A (ru) 2020-08-13
JP2018157590A (ja) 2018-10-04
CA2875196C (en) 2023-03-14
KR20200013804A (ko) 2020-02-07
US9924202B2 (en) 2018-03-20
AR113715A2 (es) 2020-06-03
AR091537A1 (es) 2015-02-11
AU2013278760A1 (en) 2014-12-11
CN107809645A (zh) 2018-03-16
KR102163398B1 (ko) 2020-10-12

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