MX2021012861A - Metodo y aparato para se?alizacion de funcion de mapeo de parametro de cuantificacion de croma. - Google Patents

Metodo y aparato para se?alizacion de funcion de mapeo de parametro de cuantificacion de croma.

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Publication number
MX2021012861A
MX2021012861A MX2021012861A MX2021012861A MX2021012861A MX 2021012861 A MX2021012861 A MX 2021012861A MX 2021012861 A MX2021012861 A MX 2021012861A MX 2021012861 A MX2021012861 A MX 2021012861A MX 2021012861 A MX2021012861 A MX 2021012861A
Authority
MX
Mexico
Prior art keywords
mapping function
quantization parameter
obtaining
signaling
luminance
Prior art date
Application number
MX2021012861A
Other languages
English (en)
Inventor
Jianle Chen
Sergey Yurievich Ikonin
Roman Igorevich Chernyak
Timofey Mikhailovich Solovyev
Elena Alexandrovna Alshina
Alexander Alexandrovich 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 MX2021012861A publication Critical patent/MX2021012861A/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
    • H04N19/10—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
    • 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
    • H04N19/132—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
    • H04N19/172—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 picture, frame or field
    • 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
    • H04N19/184—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 bits, e.g. of the compressed video stream
    • 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
    • H04N19/44—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
    • H04N19/70—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Processing Of Color Television Signals (AREA)
  • Image Processing (AREA)
  • Color Television Systems (AREA)

Abstract

Un método para obtener un parámetro de cuantificación de crominancia (QP) para componentes de crominancia con base en un QP de luminancia para un componente de luminancia, en donde el método se realiza mediante un decodificador, que comprende analizar un flujo de bits recibido para obtener el QP de luminancia e información de una función de mapeo (f) que asocia un índice QP (QPi) al QP de crominancia (QPc); obtener el QPi con base al menos en una parte del QP de luminancia; obtener la función de mapeo con base en la información obtenida; y obtener un QPc con base en la función de mapeo obtenida y el QPi obtenido.
MX2021012861A 2019-04-26 2020-04-26 Metodo y aparato para se?alizacion de funcion de mapeo de parametro de cuantificacion de croma. MX2021012861A (es)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201962839607P 2019-04-26 2019-04-26
RU2019000444 2019-06-21
US201962871197P 2019-07-07 2019-07-07
US201962872238P 2019-07-09 2019-07-09
PCT/CN2020/086933 WO2020216376A1 (en) 2019-04-26 2020-04-26 Method and apparatus for signaling of mapping function of chroma quantization parameter

Publications (1)

Publication Number Publication Date
MX2021012861A true MX2021012861A (es) 2021-12-10

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MX2021012861A MX2021012861A (es) 2019-04-26 2020-04-26 Metodo y aparato para se?alizacion de funcion de mapeo de parametro de cuantificacion de croma.

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US (3) US20220070462A1 (es)
EP (3) EP3949402A4 (es)
JP (2) JP7368496B2 (es)
KR (1) KR20210147063A (es)
CN (4) CN113785577B (es)
AU (1) AU2020260657A1 (es)
BR (2) BR112021021434A2 (es)
CA (1) CA3137206A1 (es)
CL (1) CL2021002776A1 (es)
MX (1) MX2021012861A (es)
SG (1) SG11202111156PA (es)
WO (2) WO2020216375A1 (es)

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EP4346205A2 (en) 2024-04-03
EP3939283A4 (en) 2022-05-18
CN113785577A (zh) 2021-12-10
BR112021021434A2 (pt) 2021-12-21
CA3137206A1 (en) 2020-10-29
BR112021000379A2 (pt) 2021-04-13
CN113785577B (zh) 2023-06-27
US20240205406A1 (en) 2024-06-20
JP2023179671A (ja) 2023-12-19
EP3949402A4 (en) 2022-06-08
JP7368496B2 (ja) 2023-10-24
EP4346205A3 (en) 2024-04-24
SG11202111156PA (en) 2021-11-29
CL2021002776A1 (es) 2022-05-20
US20220070462A1 (en) 2022-03-03
KR20210147063A (ko) 2021-12-06
EP3949402A1 (en) 2022-02-09
EP3939283A1 (en) 2022-01-19
AU2020260657A1 (en) 2021-11-11
CN113767629A (zh) 2021-12-07
WO2020216375A1 (en) 2020-10-29
CN116760984A (zh) 2023-09-15
US20220070460A1 (en) 2022-03-03
WO2020216376A1 (en) 2020-10-29
JP2022530480A (ja) 2022-06-29
CN117714687A (zh) 2024-03-15

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