MX2021014754A - Metodo y aparato de filtrado en bucle adaptativo. - Google Patents

Metodo y aparato de filtrado en bucle adaptativo.

Info

Publication number
MX2021014754A
MX2021014754A MX2021014754A MX2021014754A MX2021014754A MX 2021014754 A MX2021014754 A MX 2021014754A MX 2021014754 A MX2021014754 A MX 2021014754A MX 2021014754 A MX2021014754 A MX 2021014754A MX 2021014754 A MX2021014754 A MX 2021014754A
Authority
MX
Mexico
Prior art keywords
alf
adaptive parameter
parameter set
current
slice
Prior art date
Application number
MX2021014754A
Other languages
English (en)
Inventor
Jin Ho Lee
Sung Chang Lim
Jung Won Kang
Ha Hyun Lee
Hui Yong Kim
Original Assignee
Electronics & Telecommunications Res Inst
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 Electronics & Telecommunications Res Inst filed Critical Electronics & Telecommunications Res Inst
Publication of MX2021014754A publication Critical patent/MX2021014754A/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
    • H04N19/117—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
    • H04N19/80—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
    • H04N19/10—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
    • H04N19/134—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
    • H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
    • 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
    • H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
    • H04N19/139—Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
    • 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
    • H04N19/17—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
    • 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

En este documento se describe un método de decodificación de video que incluye adquirir conjuntos de parámetros de adaptación que incluyan un conjunto de filtros en bucle adaptativo (ALF) que incluya una pluralidad de ALFs, determinar un conjunto de parámetros de adaptación aplicado a una imagen o segmento actual y que incluya un conjunto de ALF aplicado a la imagen o segmento actual, de entre los conjuntos de parámetros adaptativos, determinar un conjunto de parámetros de adaptación aplicado a un bloque de árbol de codificación actual (CTB) y que incluya un conjunto de ALF aplicado al CTB actual incluido en la imagen o segmento actual, del conjunto de parámetros de adaptación aplicado a la imagen o segmento actual, y filtrar el CTB actual en función del conjunto de ALF del conjunto de parámetros de adaptación determinado aplicado al CTB actual, en donde los conjuntos de parámetros de adaptación adquiridos incluyen información de número de ALF de croma, y en donde el conjunto de ALF incluye ALFs de croma, cuyo número está indicado por la información de número de ALF de croma.
MX2021014754A 2019-06-17 2020-06-17 Metodo y aparato de filtrado en bucle adaptativo. MX2021014754A (es)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
KR20190071707 2019-06-17
KR20190071941 2019-06-18
KR20190082429 2019-07-09
PCT/KR2020/007856 WO2020256413A1 (ko) 2019-06-17 2020-06-17 적응적 루프내 필터링 방법 및 장치

Publications (1)

Publication Number Publication Date
MX2021014754A true MX2021014754A (es) 2022-01-18

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Application Number Title Priority Date Filing Date
MX2021014754A MX2021014754A (es) 2019-06-17 2020-06-17 Metodo y aparato de filtrado en bucle adaptativo.

Country Status (5)

Country Link
US (1) US20220248006A1 (es)
KR (1) KR20200144075A (es)
CN (1) CN113940085A (es)
MX (1) MX2021014754A (es)
WO (1) WO2020256413A1 (es)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220006113A (ko) * 2019-06-25 2022-01-14 에스지 디제이아이 테크놀러지 코., 엘티디 루프 필터링 방법 및 장치
WO2021088835A1 (en) * 2019-11-04 2021-05-14 Beijing Bytedance Network Technology Co., Ltd. Cross-component adaptive loop filter
CN113475070A (zh) 2019-12-24 2021-10-01 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
JP7001668B2 (ja) * 2019-12-26 2022-01-19 Kddi株式会社 画像復号装置、画像復号方法及びプログラム
WO2021145728A1 (ko) * 2020-01-15 2021-07-22 엘지전자 주식회사 인루프 필터링 기반 영상 코딩 장치 및 방법
US11706461B2 (en) * 2021-03-18 2023-07-18 Tencent America LLC Method and apparatus for video coding
US11838557B2 (en) * 2021-11-17 2023-12-05 Mediatek Inc. Methods and apparatuses of ALF derivation in video encoding system
CN114726926B (zh) * 2022-03-30 2023-03-31 电子科技大学 一种用于拉普拉斯信源的自适应变长编码方法
CN115131784B (zh) * 2022-04-26 2023-04-18 东莞博奥木华基因科技有限公司 一种图像处理方法、装置、电子设备及存储介质
WO2024016982A1 (en) * 2022-07-20 2024-01-25 Mediatek Inc. Adaptive loop filter with adaptive filter strength
WO2024039088A1 (ko) * 2022-08-18 2024-02-22 현대자동차주식회사 비선형 교차 성분 관계에 기반하는 cc-alf를 이용하는 비디오 코딩을 위한 방법 및 장치

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5763210B2 (ja) * 2011-04-21 2015-08-12 メディアテック インコーポレイテッド 改良されたループ型フィルタリング処理のための方法と装置
US10778974B2 (en) * 2017-07-05 2020-09-15 Qualcomm Incorporated Adaptive loop filter with enhanced classification methods
CN111615828B (zh) * 2017-11-29 2023-01-10 韩国电子通信研究院 采用环内滤波的图像编码/解码方法和装置
BR112021017682A2 (pt) * 2019-03-08 2021-11-16 Canon Kk Filtro em laço adaptativo
WO2020231140A1 (ko) * 2019-05-14 2020-11-19 엘지전자 주식회사 적응적 루프 필터 기반 비디오 또는 영상 코딩

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Publication number Publication date
CN113940085A (zh) 2022-01-14
KR20200144075A (ko) 2020-12-28
WO2020256413A1 (ko) 2020-12-24
US20220248006A1 (en) 2022-08-04

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