MX2021003166A - Aparato y metodo para cuantificacion inversa. - Google Patents

Aparato y metodo para cuantificacion inversa.

Info

Publication number
MX2021003166A
MX2021003166A MX2021003166A MX2021003166A MX2021003166A MX 2021003166 A MX2021003166 A MX 2021003166A MX 2021003166 A MX2021003166 A MX 2021003166A MX 2021003166 A MX2021003166 A MX 2021003166A MX 2021003166 A MX2021003166 A MX 2021003166A
Authority
MX
Mexico
Prior art keywords
current block
chrominance component
inverse quantization
existing
values
Prior art date
Application number
MX2021003166A
Other languages
English (en)
Inventor
Jianle Chen
Haitao Yang
Sergey Yurievich Ikonin
Yin Zhao
Timofey Mikhailovich Solovyev
Roman Chernyak
Alexander Karabutov
Original Assignee
Huawei 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 Huawei Tech Co Ltd filed Critical Huawei Tech Co Ltd
Publication of MX2021003166A publication Critical patent/MX2021003166A/es

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
    • H04N19/46—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
    • 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
    • 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
    • H04N19/132—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
    • H04N19/169—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
    • H04N19/46—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
    • H04N19/70—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
    • H04N19/96—Tree coding, e.g. quad-tree 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)

Abstract

Se proporciona un método para la cuantificación inversa de un bloque actual de una imagen. El método se lleva a cabo mediante un decodificador, y la imagen comprende un componente de luminancia y un componente de crominancia, el componente de luminancia y/o el componente de crominancia se dividen en múltiples bloques. El método incluye obtener uno o más parámetros de cuantificación existentes, los valores QP de un flujo de bits, en donde el uno o más valores de QP existentes se relacionan con un bloque actual en el componente de crominancia; determinar un valor de QP para el bloque actual en el componente de crominancia basándose en uno o más valores de QP existentes; y realizar una cuantificación inversa en el bloque actual en el componente de crominancia utilizando el valor de QP determinado.
MX2021003166A 2018-09-21 2019-09-21 Aparato y metodo para cuantificacion inversa. MX2021003166A (es)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US201862734982P 2018-09-21 2018-09-21
US201862744125P 2018-10-10 2018-10-10
US201862745983P 2018-10-15 2018-10-15
PCT/CN2019/107134 WO2020057662A1 (en) 2018-09-21 2019-09-21 Apparatus and method for inverse quantization

Publications (1)

Publication Number Publication Date
MX2021003166A true MX2021003166A (es) 2021-05-14

Family

ID=69888333

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2021003166A MX2021003166A (es) 2018-09-21 2019-09-21 Aparato y metodo para cuantificacion inversa.

Country Status (11)

Country Link
US (2) US11689723B2 (es)
EP (1) EP3841748A4 (es)
JP (2) JP7343573B2 (es)
KR (2) KR20230135159A (es)
CN (3) CN112690000B (es)
AU (2) AU2019342803B2 (es)
BR (1) BR112021004984A2 (es)
CA (1) CA3111118A1 (es)
MX (1) MX2021003166A (es)
SG (1) SG11202101799WA (es)
WO (1) WO2020057662A1 (es)

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KR20220051340A (ko) * 2019-08-30 2022-04-26 베이징 바이트댄스 네트워크 테크놀로지 컴퍼니, 리미티드 인트라 코딩에서 서브 파티셔닝
US11395014B2 (en) * 2019-09-18 2022-07-19 Qualcomm Incorporated Transform unit design for video coding
WO2021091214A1 (ko) * 2019-11-05 2021-05-14 엘지전자 주식회사 크로마 양자화 파라미터 오프셋 관련 정보를 코딩하는 영상 디코딩 방법 및 그 장치
CN115299063A (zh) 2020-02-27 2022-11-04 抖音视界有限公司 变换跳过残差编解码
WO2021197447A1 (en) * 2020-04-01 2021-10-07 Beijing Bytedance Network Technology Co., Ltd. Controlling quantization parameter delta signaling
WO2021204135A1 (en) 2020-04-07 2021-10-14 Beijing Bytedance Network Technology Co., Ltd. Signaling and inference of subpicture related syntax element
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KR20230016047A (ko) * 2020-05-27 2023-01-31 바이트댄스 아이엔씨 비디오 코딩에서의 서브픽처들 및 타일들의 사용
JP2023030585A (ja) * 2021-08-23 2023-03-08 キヤノン株式会社 画像符号化装置及び方法及びプログラム
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Publication number Publication date
US20230291902A1 (en) 2023-09-14
KR20210045458A (ko) 2021-04-26
AU2019342803B2 (en) 2023-07-13
CN114598875B (zh) 2023-03-24
EP3841748A4 (en) 2021-10-27
US11689723B2 (en) 2023-06-27
JP2023164490A (ja) 2023-11-10
CN115052144A (zh) 2022-09-13
SG11202101799WA (en) 2021-03-30
WO2020057662A1 (en) 2020-03-26
CN112690000B (zh) 2022-02-18
CA3111118A1 (en) 2020-03-26
US20210218968A1 (en) 2021-07-15
CN112690000A (zh) 2021-04-20
BR112021004984A2 (pt) 2021-06-08
CN114598875A (zh) 2022-06-07
JP2022500943A (ja) 2022-01-04
JP7343573B2 (ja) 2023-09-12
AU2023248107A1 (en) 2023-11-09
AU2019342803A1 (en) 2021-03-18
KR102578075B1 (ko) 2023-09-12
KR20230135159A (ko) 2023-09-22
EP3841748A1 (en) 2021-06-30

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