BR112021019564A2 - Método para processamento de mídia visual, aparelho codificador de vídeo, aparelho decodificador de vídeo, e, mídia legível por computador - Google Patents
Método para processamento de mídia visual, aparelho codificador de vídeo, aparelho decodificador de vídeo, e, mídia legível por computadorInfo
- Publication number
- BR112021019564A2 BR112021019564A2 BR112021019564A BR112021019564A BR112021019564A2 BR 112021019564 A2 BR112021019564 A2 BR 112021019564A2 BR 112021019564 A BR112021019564 A BR 112021019564A BR 112021019564 A BR112021019564 A BR 112021019564A BR 112021019564 A2 BR112021019564 A2 BR 112021019564A2
- Authority
- BR
- Brazil
- Prior art keywords
- media
- computer readable
- visual media
- video
- processing visual
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 3
- 230000000007 visual effect Effects 0.000 title abstract 3
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 241000023320 Luma <angiosperm> Species 0.000 abstract 1
- OSWPMRLSEDHDFF-UHFFFAOYSA-N methyl salicylate Chemical compound COC(=O)C1=CC=CC=C1O OSWPMRLSEDHDFF-UHFFFAOYSA-N 0.000 abstract 1
Classifications
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- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
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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
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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- 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
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- 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
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- 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
- H04N19/105—Selection 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
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- H04N19/124—Quantisation
- H04N19/126—Details of normalisation or weighting functions, e.g. normalisation matrices or variable uniform quantisers
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- 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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- H04N19/186—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 colour or a chrominance component
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- 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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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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- 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
- H04N19/70—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
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- H—ELECTRICITY
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
- H04N19/80—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation
- H04N19/82—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation involving filtering within a prediction loop
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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
- H04N19/90—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
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)
- Color Television Systems (AREA)
- Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
- Materials For Medical Uses (AREA)
Abstract
método e aparelho para processar dados de vídeo, e, meios de armazenamento e de gravação legíveis por computador não transitórios. um método para processamento de mídia visual, compreendendo realizar uma conversão entre um bloco de vídeo de croma atual dos dados de mídia visual e uma representação em fluxo contínuo de bits do bloco de vídeo de croma atual, em que, durante a conversão, um resíduo de croma do bloco de vídeo de croma atual é escalado com base em um coeficiente de escala, em que o coeficiente de escala é derivado pelo menos com base nas amostras de luma localizadas nas posições predefinidas.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN2019083320 | 2019-04-18 | ||
PCT/CN2020/085674 WO2020211869A1 (en) | 2019-04-18 | 2020-04-20 | Parameter derivation in cross component mode |
Publications (1)
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BR112021019564A2 true BR112021019564A2 (pt) | 2021-12-07 |
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BR112021019564A BR112021019564A2 (pt) | 2019-04-18 | 2020-04-20 | Método para processamento de mídia visual, aparelho codificador de vídeo, aparelho decodificador de vídeo, e, mídia legível por computador |
BR112021019679A BR112021019679A2 (pt) | 2019-04-18 | 2020-04-20 | Método para processamento de mídia visual, aparelho codificador de vídeo, aparelho decodificador de vídeo, e, mídia legível por computador |
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BR112021019679A BR112021019679A2 (pt) | 2019-04-18 | 2020-04-20 | Método para processamento de mídia visual, aparelho codificador de vídeo, aparelho decodificador de vídeo, e, mídia legível por computador |
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US (4) | US11553194B2 (pt) |
EP (2) | EP3932062A4 (pt) |
JP (3) | JP7302009B2 (pt) |
KR (2) | KR20210154150A (pt) |
CN (5) | CN113711590B (pt) |
AU (2) | AU2020259567A1 (pt) |
BR (2) | BR112021019564A2 (pt) |
CA (2) | CA3135968C (pt) |
MX (2) | MX2021012472A (pt) |
SG (2) | SG11202111000XA (pt) |
WO (4) | WO2020211868A1 (pt) |
ZA (2) | ZA202107295B (pt) |
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