BR112021026046A2 - Níveis de clipping para filtro loop adaptativo não linear - Google Patents

Níveis de clipping para filtro loop adaptativo não linear

Info

Publication number
BR112021026046A2
BR112021026046A2 BR112021026046A BR112021026046A BR112021026046A2 BR 112021026046 A2 BR112021026046 A2 BR 112021026046A2 BR 112021026046 A BR112021026046 A BR 112021026046A BR 112021026046 A BR112021026046 A BR 112021026046A BR 112021026046 A2 BR112021026046 A2 BR 112021026046A2
Authority
BR
Brazil
Prior art keywords
clipping levels
adaptive loop
pixel
loop filter
linear adaptive
Prior art date
Application number
BR112021026046A
Other languages
English (en)
Inventor
Alexandrovna Alshina Elena
Yurievich Ikonin Sergey
Alexeevich Stepin Victor
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 BR112021026046A2 publication Critical patent/BR112021026046A2/pt

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
    • H04N19/117—Filters, e.g. for pre-processing or post-processing
    • 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
    • H04N19/136—Incoming video signal characteristics or properties
    • 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
    • H04N19/186—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
    • H04N19/189—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding
    • H04N19/196—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding being specially adapted for the computation of encoding parameters, e.g. by averaging previously computed encoding parameters
    • 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
    • H04N19/80—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation
    • H04N19/82—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation involving filtering within a prediction loop

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

níveis de clipping para filtro loop adaptativo não linear. um método para filtragem in-loop realizando-se filtragem loop adaptativa em um quadro reconstruído de um fluxo de bits, implementado por um dispositivo de codificação ou um dispositivo de decodificação, compreendendo formar diferenças entre um pixel do quadro reconstruído e pixels vizinhos em uma área conectada do pixel, restringir as diferenças de acordo com respectivos níveis de clipping, formar uma soma ponderada das diferenças restritas, e adicionar a soma ponderada ao pixel para determinar um pixel filtrado, em que os respectivos níveis de clipping são escolhidos a partir de um mesmo conjunto de níveis de clipping para os componentes de luma e croma.
BR112021026046A 2019-06-24 2020-06-24 Níveis de clipping para filtro loop adaptativo não linear BR112021026046A2 (pt)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
RU2019000454 2019-06-24
RU2019000456 2019-06-25
RU2019000476 2019-07-03
US201962871200P 2019-07-07 2019-07-07
RU2019000483 2019-07-08
PCT/CN2020/098229 WO2020259621A1 (en) 2019-06-24 2020-06-24 Clipping levels for non-linear adaptive loop filter

Publications (1)

Publication Number Publication Date
BR112021026046A2 true BR112021026046A2 (pt) 2022-02-08

Family

ID=74060716

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112021026046A BR112021026046A2 (pt) 2019-06-24 2020-06-24 Níveis de clipping para filtro loop adaptativo não linear

Country Status (11)

Country Link
US (1) US11991354B2 (pt)
EP (1) EP3977736A4 (pt)
JP (2) JP7436526B2 (pt)
KR (1) KR20220024900A (pt)
CN (5) CN117459725A (pt)
AU (1) AU2020308382A1 (pt)
BR (1) BR112021026046A2 (pt)
CA (1) CA3144809A1 (pt)
IL (1) IL289362A (pt)
MX (1) MX2022000142A (pt)
WO (1) WO2020259621A1 (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113766247B (zh) * 2019-06-25 2023-07-25 北京大学 环路滤波的方法与装置
KR20230145216A (ko) * 2019-12-28 2023-10-17 베이징 다지아 인터넷 인포메이션 테크놀로지 컴퍼니 리미티드 비디오 코딩을 위한 인-루프 필터

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9094658B2 (en) 2010-05-10 2015-07-28 Mediatek Inc. Method and apparatus of adaptive loop filtering
US9008180B2 (en) * 2011-04-21 2015-04-14 Intellectual Discovery Co., Ltd. Method and apparatus for encoding/decoding images using a prediction method adopting in-loop filtering
US9432700B2 (en) * 2011-09-27 2016-08-30 Broadcom Corporation Adaptive loop filtering in accordance with video coding
US9124869B2 (en) * 2012-01-11 2015-09-01 Futurewei Technologies, Inc. Systems and methods for video denoising
US9451258B2 (en) 2012-04-03 2016-09-20 Qualcomm Incorporated Chroma slice-level QP offset and deblocking
US10621731B1 (en) * 2016-05-31 2020-04-14 NGCodec Inc. Apparatus and method for efficient motion estimation for different block sizes
US10110913B2 (en) 2016-09-30 2018-10-23 Intel Corporation Motion estimation using hybrid video imaging system
JP2019114961A (ja) 2017-12-25 2019-07-11 富士通株式会社 無線通信装置、及びアンテナキャリブレーション方法
GB2582029A (en) * 2019-03-08 2020-09-09 Canon Kk An adaptive loop filter
JP6811931B2 (ja) 2019-06-20 2021-01-13 Kddi株式会社 画像復号装置、画像復号方法及びプログラム

Also Published As

Publication number Publication date
EP3977736A4 (en) 2022-06-29
MX2022000142A (es) 2022-05-16
CN117768644A (zh) 2024-03-26
CN114145019B (zh) 2023-11-10
IL289362A (en) 2022-02-01
JP2024055893A (ja) 2024-04-19
CN117640930A (zh) 2024-03-01
JP2022539334A (ja) 2022-09-08
EP3977736A1 (en) 2022-04-06
CN117478877A (zh) 2024-01-30
US20220116598A1 (en) 2022-04-14
CN117459725A (zh) 2024-01-26
US11991354B2 (en) 2024-05-21
CN114145019A (zh) 2022-03-04
KR20220024900A (ko) 2022-03-03
WO2020259621A1 (en) 2020-12-30
AU2020308382A1 (en) 2022-01-27
JP7436526B2 (ja) 2024-02-21
CA3144809A1 (en) 2020-12-30

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B154 Notification of filing of divisional application [chapter 15.50 patent gazette]

Free format text: O PEDIDO FOI DIVIDIDO NO BR122023011862-6 PROTOCOLO 870230051179 EM 15/06/2023 13:24.O PEDIDO FOI DIVIDIDO NO BR122023011866-9 PROTOCOLO 870230051196 EM 15/06/2023 13:49.