CL2022001991A1 - Un codificador, un decodificador y métodos correspondientes para el filtrado de bucle adaptativo - Google Patents

Un codificador, un decodificador y métodos correspondientes para el filtrado de bucle adaptativo

Info

Publication number
CL2022001991A1
CL2022001991A1 CL2022001991A CL2022001991A CL2022001991A1 CL 2022001991 A1 CL2022001991 A1 CL 2022001991A1 CL 2022001991 A CL2022001991 A CL 2022001991A CL 2022001991 A CL2022001991 A CL 2022001991A CL 2022001991 A1 CL2022001991 A1 CL 2022001991A1
Authority
CL
Chile
Prior art keywords
adaptive loop
loop filtering
block
decoder
encoder
Prior art date
Application number
CL2022001991A
Other languages
English (en)
Inventor
Meher Kotra Anand
Esenlik Semih
Alexandrovna Alshina Elena
Gao Han
Wang Biao
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 filed Critical
Publication of CL2022001991A1 publication Critical patent/CL2022001991A1/es

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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
    • H04N19/117—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
    • H04N19/102—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
    • H04N19/134—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
    • H04N19/167—Position within a video image, e.g. region of interest [ROI]
    • 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
    • H04N19/80—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
    • 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
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/86—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness
    • 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 describen un método para filtrar un valor de muestra de una imagen y un aparato de decodificación de video, el método comprende: obtener un valor de muestra reconstruido para un bloque de la imagen; obtener coeficientes de filtro para filtrado de bucle adaptativo según un flujo de bits; obtener un valor de suma según los coeficientes de filtro y el valor de muestra reconstruido para el bloque; redondear el valor de suma según una posición vertical de una muestra en el bloque, para obtener un valor de suma redondeada; obtener un valor de muestra reconstruido de filtro para el bloque según el valor de suma redondeada.
CL2022001991A 2020-01-24 2022-07-22 Un codificador, un decodificador y métodos correspondientes para el filtrado de bucle adaptativo CL2022001991A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP2020051788 2020-01-24

Publications (1)

Publication Number Publication Date
CL2022001991A1 true CL2022001991A1 (es) 2023-01-27

Family

ID=76993179

Family Applications (1)

Application Number Title Priority Date Filing Date
CL2022001991A CL2022001991A1 (es) 2020-01-24 2022-07-22 Un codificador, un decodificador y métodos correspondientes para el filtrado de bucle adaptativo

Country Status (13)

Country Link
US (1) US20220377326A1 (es)
EP (1) EP4085639A4 (es)
JP (1) JP2023511206A (es)
KR (1) KR20220127314A (es)
CN (2) CN115836527A (es)
AU (1) AU2021210471A1 (es)
BR (1) BR112022014636A2 (es)
CA (1) CA3165820A1 (es)
CL (1) CL2022001991A1 (es)
IL (1) IL295013A (es)
MX (1) MX2022009122A (es)
WO (1) WO2021147981A1 (es)
ZA (1) ZA202208537B (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7393550B2 (ja) 2019-12-11 2023-12-06 北京字節跳動網絡技術有限公司 クロス成分適応ループフィルタリングのためのサンプルパディング
US11394967B2 (en) 2020-04-26 2022-07-19 Tencent America LLC Geometric cross-component filtering
EP4173290A4 (en) * 2020-06-30 2024-01-10 Beijing Bytedance Network Technology Co., Ltd. BOUNDARY LOCATION FOR ADAPTIVE LOOP FILTERING

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10694214B2 (en) * 2012-12-21 2020-06-23 Qualcomm Incorporated Multi-type parallelized sample adaptive offset in video coding
GB2516424A (en) * 2013-07-15 2015-01-28 Nokia Corp A method, an apparatus and a computer program product for video coding and decoding
CN116527887A (zh) * 2016-08-01 2023-08-01 韩国电子通信研究院 图像编码/解码方法和设备以及存储比特流的记录介质
EP3750307B1 (en) * 2018-03-09 2023-10-04 Huawei Technologies Co., Ltd. Method and apparatus for image filtering with adaptive multiplier coefficients
US11451773B2 (en) * 2018-06-01 2022-09-20 Qualcomm Incorporated Block-based adaptive loop filter (ALF) design and signaling
WO2020007489A1 (en) * 2018-07-06 2020-01-09 Huawei Technologies Co., Ltd. A picture encoder, a picture decoder and corresponding methods
GB2582029A (en) * 2019-03-08 2020-09-09 Canon Kk An adaptive loop filter
CN113475070B (zh) * 2019-12-24 2024-06-25 瑞典爱立信有限公司 针对自适应环路滤波的虚拟边界处理
US11303892B2 (en) * 2020-01-23 2022-04-12 Qualcomm Incorporated Adaptive rounding for loop filters

Also Published As

Publication number Publication date
WO2021147981A1 (en) 2021-07-29
AU2021210471A1 (en) 2022-08-25
JP2023511206A (ja) 2023-03-16
IL295013A (en) 2022-09-01
BR112022014636A2 (pt) 2022-10-11
US20220377326A1 (en) 2022-11-24
KR20220127314A (ko) 2022-09-19
CN116208773B (zh) 2024-07-05
CN116208773A (zh) 2023-06-02
CN115836527A (zh) 2023-03-21
MX2022009122A (es) 2022-10-27
EP4085639A1 (en) 2022-11-09
CA3165820A1 (en) 2021-07-29
EP4085639A4 (en) 2023-03-22
ZA202208537B (en) 2023-05-31

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