CL2022000681A1 - Método y aparato para la señalización de parámetros de cuantización de crominancia - Google Patents

Método y aparato para la señalización de parámetros de cuantización de crominancia

Info

Publication number
CL2022000681A1
CL2022000681A1 CL2022000681A CL2022000681A CL2022000681A1 CL 2022000681 A1 CL2022000681 A1 CL 2022000681A1 CL 2022000681 A CL2022000681 A CL 2022000681A CL 2022000681 A CL2022000681 A CL 2022000681A CL 2022000681 A1 CL2022000681 A1 CL 2022000681A1
Authority
CL
Chile
Prior art keywords
chrominance
obtaining
bit stream
jccr
control flag
Prior art date
Application number
CL2022000681A
Other languages
English (en)
Inventor
Sergey Yurievich Ikonin
Roman Igorevich Chernyak
Timofey Mikhailovich Solovyev
Alexander Alexandrovich Karabutov
Elena Alexandrovna Alshina
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 CL2022000681A1 publication Critical patent/CL2022000681A1/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
    • H04N19/10—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
    • H04N19/134—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
    • H04N19/169—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
    • H04N19/70—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)
  • Color Television Systems (AREA)

Abstract

Un método para la cuantificación inversa de un bloque actual de una imagen, comprendiendo el método: recibir un flujo de bits; obtener una bandera de control residual de componente de crominancia conjunta, JCCR, del flujo de bits; obtener una información de mapeo de crominancia del flujo de bits con base en la bandera de control de JCCR; obtener al menos un desplazamiento de parámetro de cuantificación de crominancia, QP, del flujo de bits con base en la bandera de control de JCCR; obtener un valor QP para el bloque de crominancia actual con base en la información de mapeo de crominancia obtenida y el al menos un desplazamiento de QP de crominancia obtenido; realizar la cuantificación inversa en el bloque de crominancia actual usando el valor QP determinado.
CL2022000681A 2019-09-23 2022-03-21 Método y aparato para la señalización de parámetros de cuantización de crominancia CL2022000681A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2019000664 2019-09-23

Publications (1)

Publication Number Publication Date
CL2022000681A1 true CL2022000681A1 (es) 2022-10-21

Family

ID=75165295

Family Applications (1)

Application Number Title Priority Date Filing Date
CL2022000681A CL2022000681A1 (es) 2019-09-23 2022-03-21 Método y aparato para la señalización de parámetros de cuantización de crominancia

Country Status (13)

Country Link
US (1) US20220217347A1 (es)
EP (1) EP4022911A4 (es)
JP (2) JP7328446B2 (es)
KR (1) KR20220054442A (es)
CN (1) CN114586362A (es)
AU (1) AU2020354852A1 (es)
BR (1) BR112022005290A2 (es)
CA (1) CA3151293A1 (es)
CL (1) CL2022000681A1 (es)
IL (1) IL291619A (es)
MX (1) MX2022003451A (es)
NZ (1) NZ786438A (es)
WO (1) WO2021061019A1 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
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JP2023529972A (ja) * 2020-06-22 2023-07-12 北京字節跳動網絡技術有限公司 コーディングされた映像における量子化情報の信号通知

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US9591302B2 (en) * 2012-07-02 2017-03-07 Microsoft Technology Licensing, Llc Use of chroma quantization parameter offsets in deblocking
US9294766B2 (en) * 2013-09-09 2016-03-22 Apple Inc. Chroma quantization in video coding
US9883184B2 (en) * 2014-10-07 2018-01-30 Qualcomm Incorporated QP derivation and offset for adaptive color transform in video coding
EP4283989A1 (en) * 2018-04-01 2023-11-29 LG Electronics Inc. An image coding apparatus and method thereof based on a quantization parameter derivation
US11451826B2 (en) * 2019-04-15 2022-09-20 Tencent America LLC Lossless coding mode and switchable residual coding
EP3963886A1 (en) * 2019-05-03 2022-03-09 InterDigital VC Holdings, Inc. Chroma processing for video encoding and decoding
CN116800978A (zh) * 2019-06-11 2023-09-22 Lg电子株式会社 图像编码/解码方法、图像数据发送方法和存储介质
KR102594690B1 (ko) * 2019-06-11 2023-10-26 엘지전자 주식회사 크로마 양자화 파라미터 데이터 기반 영상 디코딩 방법 및 그 장치
WO2020251268A1 (ko) * 2019-06-11 2020-12-17 엘지전자 주식회사 크로마 성분에 대한 영상 디코딩 방법 및 그 장치
US11146823B2 (en) * 2019-06-25 2021-10-12 Qualcomm Incorporated Signalling chroma quantization parameter (QP) mapping tables
KR20240036120A (ko) * 2019-06-28 2024-03-19 엘지전자 주식회사 영상 디코딩 방법 및 그 장치
CN114175644A (zh) * 2019-06-28 2022-03-11 Lg 电子株式会社 使用色度量化参数表的图像解码方法及其设备
EP3993417A4 (en) * 2019-06-28 2023-08-02 Lg Electronics Inc. IMAGE DECODING METHOD FOR CHROMA QUANTIZATION PARAMETER DATA AND CORRESPONDING DEVICE
KR20240024349A (ko) * 2019-07-05 2024-02-23 엘지전자 주식회사 영상 디코딩 방법 및 그 장치
WO2021006559A1 (ko) * 2019-07-05 2021-01-14 엘지전자 주식회사 크로마 성분에 대한 영상 디코딩 방법 및 그 장치
KR20220029586A (ko) * 2019-07-05 2022-03-08 엘지전자 주식회사 크로마 양자화 파라미터 데이터를 코딩하는 영상 디코딩 방법 및 그 장치
CN112055211B (zh) * 2019-08-15 2021-10-26 华为技术有限公司 视频编码器及qp设置方法
WO2021037004A1 (en) * 2019-08-23 2021-03-04 Huawei Technologies Co., Ltd. An encoder, a decoder and corresponding methods for performing chroma deblocking for blocks which use joint chroma coding
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US11395014B2 (en) * 2019-09-18 2022-07-19 Qualcomm Incorporated Transform unit design for video coding

Also Published As

Publication number Publication date
JP7328446B2 (ja) 2023-08-16
AU2020354852A1 (en) 2022-07-21
JP2022549288A (ja) 2022-11-24
CN114586362A (zh) 2022-06-03
IL291619A (en) 2022-05-01
US20220217347A1 (en) 2022-07-07
EP4022911A4 (en) 2022-11-09
CA3151293A1 (en) 2021-04-01
BR112022005290A2 (pt) 2022-09-20
WO2021061019A1 (en) 2021-04-01
JP2023153193A (ja) 2023-10-17
NZ786438A (en) 2024-03-22
KR20220054442A (ko) 2022-05-02
MX2022003451A (es) 2022-05-18
EP4022911A1 (en) 2022-07-06

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