BR112018010517A2 - estrutura de árvore de transformada flexível em codificação de vídeos - Google Patents
estrutura de árvore de transformada flexível em codificação de vídeosInfo
- Publication number
- BR112018010517A2 BR112018010517A2 BR112018010517A BR112018010517A BR112018010517A2 BR 112018010517 A2 BR112018010517 A2 BR 112018010517A2 BR 112018010517 A BR112018010517 A BR 112018010517A BR 112018010517 A BR112018010517 A BR 112018010517A BR 112018010517 A2 BR112018010517 A2 BR 112018010517A2
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- BR
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- tree structure
- node
- video encoding
- transform tree
- corresponds
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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
- H04N19/649—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding the transform being applied to non rectangular image segments
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
- G06F17/14—Fourier, Walsh or analogous domain transformations, e.g. Laplace, Hilbert, Karhunen-Loeve, transforms
- G06F17/147—Discrete orthonormal transforms, e.g. discrete cosine transform, discrete sine transform, and variations therefrom, e.g. modified discrete cosine transform, integer transforms approximating the discrete cosine transform
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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
- 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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- H04N19/00—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
- H04N19/119—Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
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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
- H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
- H04N19/122—Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
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- H04N19/124—Quantisation
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- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
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- H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
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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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- H04N19/169—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
- H04N19/186—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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- H04N19/573—Motion compensation with multiple frame prediction using two or more reference frames in a given prediction direction
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- H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
- H04N19/59—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial sub-sampling or interpolation, e.g. alteration of picture size or resolution
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- 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
- H04N19/597—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding specially adapted for multi-view video sequence encoding
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- H—ELECTRICITY
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- 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
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- H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
- H04N19/625—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using discrete cosine transform [DCT]
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- 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
- H04N19/91—Entropy coding, e.g. variable length coding [VLC] or arithmetic coding
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- H—ELECTRICITY
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- 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)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Discrete Mathematics (AREA)
- Mathematical Physics (AREA)
- Pure & Applied Mathematics (AREA)
- Mathematical Optimization (AREA)
- Mathematical Analysis (AREA)
- Computational Mathematics (AREA)
- Data Mining & Analysis (AREA)
- Theoretical Computer Science (AREA)
- Algebra (AREA)
- Databases & Information Systems (AREA)
- Software Systems (AREA)
- General Engineering & Computer Science (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Image Processing (AREA)
- Color Television Systems (AREA)
Abstract
trata-se de um codificador de vídeo determinando que uma unidade de codificação (cu) é particionada em unidades de transformada (tus) da cu com base em uma estrutura de árvore. como parte da determinação que a cu é particionada em tus da cu com base na estrutura de árvore, o codificador de vídeo determina que um nó na estrutura de árvore tem exatamente dois nós filhos na estrutura de árvore. um nó raiz da estrutura de árvore corresponde a um bloco de codificação da cu, cada respectivo nó não raiz da estrutura de árvore corresponde a um respectivo bloco que é uma partição de um bloco que corresponde a um nó parental do respectivo nó não raiz, e nós folha da estrutura de árvore correspondem às tus da cu.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201562260103P | 2015-11-25 | 2015-11-25 | |
US201662310271P | 2016-03-18 | 2016-03-18 | |
US15/359,577 US20170150186A1 (en) | 2015-11-25 | 2016-11-22 | Flexible transform tree structure in video coding |
PCT/US2016/063680 WO2017091776A1 (en) | 2015-11-25 | 2016-11-23 | Flexible transform tree structure in video coding |
Publications (1)
Publication Number | Publication Date |
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BR112018010517A2 true BR112018010517A2 (pt) | 2018-11-13 |
Family
ID=58721438
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR112018010664A BR112018010664A8 (pt) | 2015-11-25 | 2016-11-23 | previsão de modelo linear com unidades de previsão não-quadradas em código de vídeo |
BR112018010517A BR112018010517A2 (pt) | 2015-11-25 | 2016-11-23 | estrutura de árvore de transformada flexível em codificação de vídeos |
BR112018010534A BR112018010534A2 (pt) | 2015-11-25 | 2016-11-23 | compensação de iluminação com blocos preditivos não quadrados em codificação de vídeo |
BR112018010660A BR112018010660A8 (pt) | 2015-11-25 | 2016-11-23 | modificação de coeficientes de transformada para unidades de transformada não-quadradas na codificação de vídeo? |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR112018010664A BR112018010664A8 (pt) | 2015-11-25 | 2016-11-23 | previsão de modelo linear com unidades de previsão não-quadradas em código de vídeo |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR112018010534A BR112018010534A2 (pt) | 2015-11-25 | 2016-11-23 | compensação de iluminação com blocos preditivos não quadrados em codificação de vídeo |
BR112018010660A BR112018010660A8 (pt) | 2015-11-25 | 2016-11-23 | modificação de coeficientes de transformada para unidades de transformada não-quadradas na codificação de vídeo? |
Country Status (9)
Country | Link |
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US (4) | US10200719B2 (pt) |
EP (4) | EP3381189A1 (pt) |
JP (4) | JP2018535610A (pt) |
KR (4) | KR20180084816A (pt) |
CN (4) | CN108293112B (pt) |
AU (4) | AU2016359171A1 (pt) |
BR (4) | BR112018010664A8 (pt) |
TW (4) | TW201729593A (pt) |
WO (4) | WO2017091759A1 (pt) |
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