BR102012029413A8 - varredura de mapa de significância de multi-níveis - Google Patents

varredura de mapa de significância de multi-níveis

Info

Publication number
BR102012029413A8
BR102012029413A8 BR102012029413A BR102012029413A BR102012029413A8 BR 102012029413 A8 BR102012029413 A8 BR 102012029413A8 BR 102012029413 A BR102012029413 A BR 102012029413A BR 102012029413 A BR102012029413 A BR 102012029413A BR 102012029413 A8 BR102012029413 A8 BR 102012029413A8
Authority
BR
Brazil
Prior art keywords
group
significant coefficient
indicators
significance map
scan
Prior art date
Application number
BR102012029413A
Other languages
English (en)
Other versions
BR102012029413A2 (pt
BR102012029413B1 (pt
Inventor
He Dake
Nguyen Nguyen
Ji Tianying
Original Assignee
Blackberry Ltd
Research In Motion Ltd
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 Blackberry Ltd, Research In Motion Ltd, Velos Media Int Ltd filed Critical Blackberry Ltd
Publication of BR102012029413A2 publication Critical patent/BR102012029413A2/pt
Publication of BR102012029413A8 publication Critical patent/BR102012029413A8/pt
Publication of BR102012029413B1 publication Critical patent/BR102012029413B1/pt

Links

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
    • H04N19/10—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
    • H04N19/169—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
    • H04N19/102—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
    • H04N19/13—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
    • H04N19/10—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
    • H04N19/18—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
    • H04N19/40—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using video transcoding, i.e. partial or full decoding of a coded input stream followed by re-encoding of the decoded output stream
    • 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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/63—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets
    • 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
    • H04N19/90—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

Landscapes

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

Abstract

varredura de mapa de significância de multi-níveis. métodos de codificar e decodificar para dados de vídeo são descritos nos quais mapas de significância de multi-níveis são utilizados nos processos de codificação e decodificação. os indicadores de coeficiente significativo que formam o mapa de significância são agrupados em grupos contíguos, e um indicador de grupo de coeficiente significativo significa para cada grupo se aquele grupo não contém indicadores de coeficiente significativo não zero. uma ordem de varredura de multi-níveis pode ser utilizado na qual indicadores de coeficiente significativo são varridos grupo a grupo. a ordem de varredura de grupo específica a ordem no qual os grupos são processados, e a ordem de varredura específica a ordem no qual indicadores de coeficiente significativo individuais no grupo são processados. o fluxo de bits pode intercalar os indicadores de grupo de coeficiente significativo correspondente, se houver.
BR102012029413-3A 2011-11-19 2012-11-19 Método e decodificador para reconstruir indicadores de coeficiente significativo para uma unidade de transformada BR102012029413B1 (pt)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201161561872P 2011-11-19 2011-11-19
US61/561,872 2011-11-19
US13/446,186 2012-04-13
US13/446,186 US9743098B2 (en) 2011-11-19 2012-04-13 Multi-level significance map scanning

Publications (3)

Publication Number Publication Date
BR102012029413A2 BR102012029413A2 (pt) 2016-02-16
BR102012029413A8 true BR102012029413A8 (pt) 2021-08-24
BR102012029413B1 BR102012029413B1 (pt) 2022-02-15

Family

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Family Applications (1)

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BR102012029413-3A BR102012029413B1 (pt) 2011-11-19 2012-11-19 Método e decodificador para reconstruir indicadores de coeficiente significativo para uma unidade de transformada

Country Status (11)

Country Link
US (3) US9743098B2 (pt)
EP (1) EP2595380B1 (pt)
JP (2) JP5542188B2 (pt)
KR (1) KR101538832B1 (pt)
CN (1) CN103124349B (pt)
AU (1) AU2012245178B2 (pt)
BR (1) BR102012029413B1 (pt)
CA (1) CA2773990C (pt)
HK (1) HK1179451A1 (pt)
SG (1) SG190516A1 (pt)
TW (1) TWI483618B (pt)

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Also Published As

Publication number Publication date
BR102012029413A2 (pt) 2016-02-16
KR101538832B1 (ko) 2015-07-22
US10116950B2 (en) 2018-10-30
CN103124349B (zh) 2016-09-14
EP2595380B1 (en) 2015-10-21
JP2013110740A (ja) 2013-06-06
CN103124349A (zh) 2013-05-29
US20130128985A1 (en) 2013-05-23
US20180007376A1 (en) 2018-01-04
JP5542188B2 (ja) 2014-07-09
CA2773990C (en) 2015-06-30
TW201334550A (zh) 2013-08-16
JP5925830B2 (ja) 2016-05-25
AU2012245178B2 (en) 2013-11-28
US9743098B2 (en) 2017-08-22
KR20130056183A (ko) 2013-05-29
BR102012029413B1 (pt) 2022-02-15
CA2773990A1 (en) 2013-05-19
HK1179451A1 (en) 2013-09-27
JP2014195269A (ja) 2014-10-09
TWI483618B (zh) 2015-05-01
SG190516A1 (en) 2013-06-28
US20190052890A1 (en) 2019-02-14
EP2595380A1 (en) 2013-05-22
AU2012245178A1 (en) 2013-06-06
US10681362B2 (en) 2020-06-09

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