BR112021025719A2 - Parâmetro de quantização de delta de croma em codificação de vídeo - Google Patents

Parâmetro de quantização de delta de croma em codificação de vídeo

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Publication number
BR112021025719A2
BR112021025719A2 BR112021025719A BR112021025719A BR112021025719A2 BR 112021025719 A2 BR112021025719 A2 BR 112021025719A2 BR 112021025719 A BR112021025719 A BR 112021025719A BR 112021025719 A BR112021025719 A BR 112021025719A BR 112021025719 A2 BR112021025719 A2 BR 112021025719A2
Authority
BR
Brazil
Prior art keywords
chroma
luma
value
quantization parameter
delta
Prior art date
Application number
BR112021025719A
Other languages
English (en)
Inventor
Alican Nalci
Van Der Auwera Geert
Marta Karczewicz
Zeyd Coban Muhammed
Wei-Jung Chien
Yu Han
Yung-Hsuan Chao
Original Assignee
Qualcomm Inc
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 Qualcomm Inc filed Critical Qualcomm Inc
Publication of BR112021025719A2 publication Critical patent/BR112021025719A2/pt

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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
    • H04N19/10—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
    • H04N19/90—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
    • H04N19/94—Vector 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
    • H04N19/119—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
    • H04N19/10—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
    • H04N19/44—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
    • H04N19/46—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
    • H04N19/70—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)

Abstract

parâmetro de quantização de delta de croma em codificação de vídeo. um decodificador de vídeo pode ser configurado para determinar um parâmetro de quantização (qp) de luma predito para um componente de luma de uma unidade de codificação; receber, no fluxo de bits de dados de vídeo codificados, a primeira sintaxe indicando um valor de qp de delta de luma para o componente de luma; determinar um valor de qp para o componente de luma com base no qp de luma predito e no valor de qp de delta de luma; determinar um qp de croma predito para um componente de croma da unidade de codificação; receber, no fluxo de bits de dados de vídeo codificados, a segunda sintaxe indicando um valor de qp de delta de croma para o componente de croma da unidade de codificação; e determinar um valor de qp para o componente de croma da unidade de codificação com base no qp de croma predito e no valor de qp de delta de croma.
BR112021025719A 2019-06-28 2020-06-26 Parâmetro de quantização de delta de croma em codificação de vídeo BR112021025719A2 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201962868771P 2019-06-28 2019-06-28
US16/912,232 US11418787B2 (en) 2019-06-28 2020-06-25 Chroma delta QP in video coding
PCT/US2020/039823 WO2020264297A1 (en) 2019-06-28 2020-06-26 Chroma delta quantization parameter in video coding

Publications (1)

Publication Number Publication Date
BR112021025719A2 true BR112021025719A2 (pt) 2022-02-08

Family

ID=74044879

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Application Number Title Priority Date Filing Date
BR112021025719A BR112021025719A2 (pt) 2019-06-28 2020-06-26 Parâmetro de quantização de delta de croma em codificação de vídeo

Country Status (8)

Country Link
US (1) US11418787B2 (pt)
EP (1) EP3991414A1 (pt)
JP (1) JP2022538225A (pt)
KR (1) KR20220024116A (pt)
CN (1) CN113994706A (pt)
BR (1) BR112021025719A2 (pt)
TW (1) TW202119820A (pt)
WO (1) WO2020264297A1 (pt)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114270840A (zh) * 2019-08-22 2022-04-01 Lg 电子株式会社 使用色度量化参数的图像解码方法及其装置
US11303897B2 (en) * 2020-02-25 2022-04-12 Tencent America LLC Method and apparatus for signaling of chroma quantization parameters
US20220286675A1 (en) * 2021-03-05 2022-09-08 Tencent America LLC Decoupled transform partitioning

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Publication number Priority date Publication date Assignee Title
US9288500B2 (en) 2011-05-12 2016-03-15 Texas Instruments Incorporated Luma-based chroma intra-prediction for video coding
US8792550B2 (en) 2011-08-04 2014-07-29 Qualcomm Incorporated Color/gray patch prevention for video coding
KR20130058524A (ko) 2011-11-25 2013-06-04 오수미 색차 인트라 예측 블록 생성 방법
US9451258B2 (en) 2012-04-03 2016-09-20 Qualcomm Incorporated Chroma slice-level QP offset and deblocking
US9591302B2 (en) 2012-07-02 2017-03-07 Microsoft Technology Licensing, Llc Use of chroma quantization parameter offsets in deblocking
US9414054B2 (en) 2012-07-02 2016-08-09 Microsoft Technology Licensing, Llc Control and use of chroma quantization parameter values
US9510002B2 (en) 2013-09-09 2016-11-29 Apple Inc. Chroma quantization in video coding
US9794575B2 (en) * 2013-12-18 2017-10-17 Magnum Semiconductor, Inc. Apparatuses and methods for optimizing rate-distortion costs in video encoding
US10462459B2 (en) 2016-04-14 2019-10-29 Mediatek Inc. Non-local adaptive loop filter
US10904580B2 (en) * 2016-05-28 2021-01-26 Mediatek Inc. Methods and apparatuses of video data processing with conditionally quantization parameter information signaling
US10448056B2 (en) * 2016-07-15 2019-10-15 Qualcomm Incorporated Signaling of quantization information in non-quadtree-only partitioned video coding
WO2018016381A1 (en) 2016-07-22 2018-01-25 Sharp Kabushiki Kaisha Systems and methods for coding video data using adaptive component scaling
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JP7424982B2 (ja) 2018-08-15 2024-01-30 日本放送協会 画像符号化装置、画像復号装置、及びプログラム
EP3797517B1 (en) 2018-08-30 2023-08-16 Huawei Technologies Co., Ltd. An encoder, a decoder and corresponding methods using a palette coding

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JP2022538225A (ja) 2022-09-01
US20200413059A1 (en) 2020-12-31
EP3991414A1 (en) 2022-05-04
US11418787B2 (en) 2022-08-16
TW202119820A (zh) 2021-05-16
WO2020264297A1 (en) 2020-12-30
KR20220024116A (ko) 2022-03-03
CN113994706A (zh) 2022-01-28

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