MX2022000705A - Metodo y aparato para codificacion de video en formato croma 4:4:4. - Google Patents

Metodo y aparato para codificacion de video en formato croma 4:4:4.

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Publication number
MX2022000705A
MX2022000705A MX2022000705A MX2022000705A MX2022000705A MX 2022000705 A MX2022000705 A MX 2022000705A MX 2022000705 A MX2022000705 A MX 2022000705A MX 2022000705 A MX2022000705 A MX 2022000705A MX 2022000705 A MX2022000705 A MX 2022000705A
Authority
MX
Mexico
Prior art keywords
syntax element
video data
coding unit
accordance
receiving
Prior art date
Application number
MX2022000705A
Other languages
English (en)
Inventor
Xianglin Wang
Xiaoyu Xiu
Yi- Wen Chen
Tsung- Chuan MA
Hong- Jheng Jhu
Bing Yu
Original Assignee
Beijing Dajia Internet Information Tech Co 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 Beijing Dajia Internet Information Tech Co Ltd filed Critical Beijing Dajia Internet Information Tech Co Ltd
Publication of MX2022000705A publication Critical patent/MX2022000705A/es

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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
    • 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
    • H04N19/119—Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
    • 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
    • H04N19/10—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
    • H04N19/12—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
    • 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
    • H04N19/105—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
    • 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
    • H04N19/12—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
    • 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
    • H04N19/134—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
    • 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
    • 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
    • H04N19/174—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 slice, e.g. a line of blocks or a group of blocks
    • 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
    • H04N19/186—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
    • 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
    • H04N19/1883—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 relating to sub-band structure, e.g. hierarchical level, directional tree, e.g. low-high [LH], high-low [HL], high-high [HH]
    • 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
    • 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
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/67—Circuits for processing colour signals for matrixing

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

Un aparato electrónico ejecuta un método para decodificar datos de video, comprendiendo: recibir, desde el flujo de bits, datos de video correspondientes a una unidad de codificación, en donde la unidad de codificación es codificada en el modo de inter predicción o modo de copia de intra bloque; recibir un primer elemento de sintaxis desde los datos de video, en donde el primer elemento de sintaxis indica si la unidad de codificación tiene cualesquier residuos no cero; de conformidad con una determinación de que el primer elemento de sintaxis tiene un valor no cero: recibir un segundo elemento de sintaxis desde los datos de video, en donde el segundo elemento de sintaxis indica si la unidad de codificación ha sido codificada usando transformación de color-espacio adaptativa (ACT); de conformidad con una determinación de que el primer elemento de sintaxis tiene un valor cero; asignando el valor cero al segundo elemento de sintaxis; y determinar si se ejecuta o no ACT inversa sobre los datos de video de la unidad de codificación de conformidad con un valor del segundo elemento de sintaxis.
MX2022000705A 2019-09-23 2020-09-23 Metodo y aparato para codificacion de video en formato croma 4:4:4. MX2022000705A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201962904539P 2019-09-23 2019-09-23
PCT/US2020/052248 WO2021061794A1 (en) 2019-09-23 2020-09-23 Methods and apparatus of video coding in 4:4:4 chroma format

Publications (1)

Publication Number Publication Date
MX2022000705A true MX2022000705A (es) 2022-02-23

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MX2022000705A MX2022000705A (es) 2019-09-23 2020-09-23 Metodo y aparato para codificacion de video en formato croma 4:4:4.

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US (1) US20220201301A1 (es)
EP (1) EP3991434A4 (es)
JP (4) JP7481426B2 (es)
KR (4) KR102695020B1 (es)
CN (2) CN114567786B (es)
MX (1) MX2022000705A (es)
WO (1) WO2021061794A1 (es)

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Publication number Priority date Publication date Assignee Title
US12022082B2 (en) * 2019-09-27 2024-06-25 Sk Telecom Co., Ltd. Method for reconstructing residual blocks of chroma blocks, and video decoding apparatus
KR102564189B1 (ko) * 2019-10-11 2023-08-04 베이징 다지아 인터넷 인포메이션 테크놀로지 컴퍼니 리미티드 4:4:4 크로마 포맷의 비디오 코딩 방법 및 장치
CN116260981B (zh) 2019-12-05 2024-01-30 阿里巴巴（中国）有限公司 用于色度采样的方法和装置
MX2022003464A (es) * 2020-12-17 2022-10-21 Japan Broadcasting Corp Dispositivo decodificador, programa y método de decodificación.

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CN100488254C (zh) * 2005-11-30 2009-05-13 联合信源数字音视频技术（北京）有限公司 一种基于上下文的熵编码方法及解码方法
TWI676389B (zh) * 2013-07-15 2019-11-01 美商內數位Ｖｃ專利控股股份有限公司 至少一種色彩轉換之編碼方法和編碼器、解碼器、顯示裝置、編碼視訊訊號、電腦程式製品及處理器可讀式媒體
US11070810B2 (en) * 2014-03-14 2021-07-20 Qualcomm Incorporated Modifying bit depths in color-space transform coding
US20150264374A1 (en) * 2014-03-14 2015-09-17 Vid Scale, Inc. Systems and methods for rgb video coding enhancement
CN107079157B (zh) * 2014-09-12 2020-12-22 Vid拓展公司 用于视频编码的分量间去相关
CN105960802B (zh) * 2014-10-08 2018-02-06 微软技术许可有限责任公司 切换色彩空间时对编码和解码的调整
EP3471418A1 (en) * 2017-10-12 2019-04-17 Thomson Licensing Method and apparatus for adaptive transform in video encoding and decoding
US11070825B2 (en) * 2019-06-13 2021-07-20 Mediatek Inc. Method and apparatus of encoding or decoding video data with adaptive colour transform

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Publication number Publication date
WO2021061794A1 (en) 2021-04-01
KR102453208B1 (ko) 2022-10-07
JP2024038261A (ja) 2024-03-19
CN114567786B (zh) 2023-08-29
JP2024109966A (ja) 2024-08-14
KR20220011229A (ko) 2022-01-27
KR20240124443A (ko) 2024-08-16
US20220201301A1 (en) 2022-06-23
JP2022535618A (ja) 2022-08-09
EP3991434A1 (en) 2022-05-04
JP7481426B2 (ja) 2024-05-10
JP2024038262A (ja) 2024-03-19
KR102695020B1 (ko) 2024-08-12
CN114567786A (zh) 2022-05-31
KR20220138031A (ko) 2022-10-12
KR20220140871A (ko) 2022-10-18
EP3991434A4 (en) 2023-01-18
CN114097244A (zh) 2022-02-25

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