DK2773117T3 - Billeddekodningsindretning - Google Patents
Billeddekodningsindretning Download PDFInfo
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- DK2773117T3 DK2773117T3 DK12843637.5T DK12843637T DK2773117T3 DK 2773117 T3 DK2773117 T3 DK 2773117T3 DK 12843637 T DK12843637 T DK 12843637T DK 2773117 T3 DK2773117 T3 DK 2773117T3
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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
- H04N19/124—Quantisation
- H04N19/126—Details of normalisation or weighting functions, e.g. normalisation matrices or variable uniform quantisers
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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
- H04N19/134—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
- H04N19/146—Data rate or code amount at the encoder output
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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
- H04N19/11—Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
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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
- H04N19/124—Quantisation
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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
- H04N19/134—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
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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
- H04N19/134—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
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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
- H04N19/169—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
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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
- H04N19/189—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
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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
- H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
- H04N19/45—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder performing compensation of the inverse transform mismatch, e.g. Inverse Discrete Cosine Transform [IDCT] mismatch
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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
- H04N19/46—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
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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
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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
- H04N19/189—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
- H04N19/198—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 including smoothing of a sequence of encoding parameters, e.g. by averaging, by choice of the maximum, minimum or median value
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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
- H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
-
- 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
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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
- H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computing Systems (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- Discrete Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Claims (2)
1. Billeddekodningsindretning, som omfatter: et entropidekodningsmodul (210), der er konfigureret til at dekode en modtaget bitstrøm, og til at opdele bitstrømmen i det mindste i intraforudsigelsesmodusinformation, interforudsigelsesmodusinformation, og kvantiseringskoefficientinformation; et intraforudsigelsesmodul (240), som er konfigureret til at rekonstruere et intraforudsigelsesmodus, og til at oprette en forudsigelsesblok af en aktuel blok eller en underblok af den aktuelle blok; et inversskanningsmodul, der er konfigureret til at konvertere kvantiserings-koefficientsinformationen til en to-dimensionel kvantiseringsblok, et inverskvantiseringsmodul (220), som er konfigureret til at inverst kvantisere kvantiseringsblokken, ved anvendelse af en kvantiseringsparameter, hvor inverskvantiseringsmodulet (220) er konfigureret til at generere en kvantiseringsparameter, ved at addere en kvantiseringsparameterindikator med en restkvantiserings-parameter; et inverstransformationsmodul (230), der er konfigureret til at inverstransformere den inverskvantiserede blok, for at generere en restblok; og et adderingsmodul (280), der er konfigureret til at addere en forudsigelsesblok, som er genereret ved anvendelse af intraforudsigelsesmodus af den aktuelle blok, og restblokken til at generere en rekonstrueret blok, hvor intraforudsigelsesmodulet (240) er konfigureret til at konstruere en MPM (Most Probable Mode) gruppe, som inkluderer tre intraforudsigelsesmodi, der er baseret på intraforudsigelsesmodi af venstre og øverste blokke af den aktuelle blok, og til at rekonstruere intraforudsigelsesmodus af den aktuelle blok, ved anvendelse af MPM-gruppen og den modtagne intraforudsigelsesmodusinformation, samt en intraforudsigelses-modusgruppeindikator og et forudsigelsesmodusindeks, ved at sætte en intraforudsigelsesmodus af MPM-gruppen specificeret af forudsigelsesmodusindekset, som intraforudsigelsesmodus af den aktuelle blok, hvis intraforudsigelsesmodusgruppeindikatoren indikerer MPM-gruppen, hvor MPM-gruppen indbefatter et planarmodus, et jævnstrømsmodus og et vertikalmodus når intraforudsigelsesmodiene af de venstre og øverste blokke af den aktuelle blok ikke er tilstede, hvor planarmodus og jævnstrømsmodus er ikke-retningsbestemte intraforudsigelsesmodi, og de andre intraforudsigelsesmodi, udover de ikke retningsbestemte intraforudsigelsesmodi, er retningsbestemte intraforudsigelsesmodi, hvor når intraforudsigelsesmodus af de øverste og venstre blokke af den aktuelle blok begge er tilstede og er forskellige fra hinanden, indbefatter MPM-gruppen de to ekstra intraforudsigelsesmodi og ét ekstra intraforudsigelsesmodus, hvor: når intraforudsigelsesmodiene af de venstre og øverste blokke er retningsbestemte intraforudsigelsesmodi, indbefatter MPM-gruppen intraforudsigelsesmodiene af de venstre og øverste blokke og et planarmodus, når intraforudsigelsesmodiene af de venstre og øverste blokke er ikke retningsbestemste intraforudsigelsesmodiene, indbefatter MPM-gruppen intraforudsigelsesmodiene af de venstre og øverste blokke og et vertikalmodus, når én af intraforudsigelsesmodiene af de venstre og øverste blokke er jævnstrømsmodus og den anden én er ikke planarmodus, indbefatter MPM-gruppen intraforudsigelsesmodiene af de venstre og øverste blokke og planarmodus, og når en af intraforudsigelsesmodiene af de venstre og øverste blokke er planarmodus og den anden én er ikke jævnstrømsmodus, indbefatter MPM-gruppen intraforudsigelses-modi af de venstre og øverste blokke og jævnstrømsmodus; hvor når intraforudsigelsesmodiene af de øverste og venstre blokke af den aktuelle blok begge er tilstede og er ens med hinanden, indbefatter MPM-gruppen intra-forudsigelsesmodus og to ekstra intraforudsigelsesmodi, hvor: når intraforudsigelsesmodus hverken er jævnstrømsmodus eller planarmodus, er de to ekstra intraforudsigelsesmodi sat til to intraforudsigelsesmodi, som støder op til intraforudsigelsesmodus, og når intraforudsigelsesmodus er jævnstrømsmodus, er de to ekstra intraforudsigelsesmodi planarmodus og vertikalmodus.
2. Billededekodningsindretning ifølge krav 1, hvor et modus nummer 0 er anvist til planarmodus.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
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KR20110108456 | 2011-10-24 | ||
KR20110108460 | 2011-10-24 | ||
PCT/KR2012/003085 WO2013062198A1 (ko) | 2011-10-24 | 2012-04-20 | 영상 복호화 장치 |
Publications (1)
Publication Number | Publication Date |
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DK2773117T3 true DK2773117T3 (da) | 2019-03-18 |
Family
ID=48168004
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DK18181670.3T DK3402200T3 (da) | 2011-10-24 | 2012-04-20 | Billeddekodningsapparat |
DK18181678.6T DK3402202T3 (da) | 2011-10-24 | 2012-04-20 | Billeddekodningsapparat |
DK12843637.5T DK2773117T3 (da) | 2011-10-24 | 2012-04-20 | Billeddekodningsindretning |
DK18181673.7T DK3402201T3 (da) | 2011-10-24 | 2012-04-20 | Fremgangsmåde til dekodning af et billede |
Family Applications Before (2)
Application Number | Title | Priority Date | Filing Date |
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DK18181670.3T DK3402200T3 (da) | 2011-10-24 | 2012-04-20 | Billeddekodningsapparat |
DK18181678.6T DK3402202T3 (da) | 2011-10-24 | 2012-04-20 | Billeddekodningsapparat |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
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DK18181673.7T DK3402201T3 (da) | 2011-10-24 | 2012-04-20 | Fremgangsmåde til dekodning af et billede |
Country Status (18)
Country | Link |
---|---|
US (6) | US9288488B2 (da) |
EP (5) | EP3402200B1 (da) |
JP (5) | JP5722506B2 (da) |
KR (1) | KR20130045155A (da) |
CN (6) | CN108174213B (da) |
CY (1) | CY1121422T1 (da) |
DK (4) | DK3402200T3 (da) |
ES (5) | ES2935823T3 (da) |
HR (1) | HRP20190354T1 (da) |
HU (5) | HUE060890T2 (da) |
LT (1) | LT2773117T (da) |
MX (5) | MX2014003541A (da) |
PL (5) | PL3402202T3 (da) |
PT (4) | PT2773117T (da) |
RS (1) | RS58300B1 (da) |
SI (1) | SI2773117T1 (da) |
TR (1) | TR201819073T4 (da) |
WO (1) | WO2013062198A1 (da) |
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