BR112022005406A2 - Restrições de modelo de movimento afim para redução de largura de banda de memória de filtro de interpolação aprimorado - Google Patents

Restrições de modelo de movimento afim para redução de largura de banda de memória de filtro de interpolação aprimorado

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Publication number
BR112022005406A2
BR112022005406A2 BR112022005406A BR112022005406A BR112022005406A2 BR 112022005406 A2 BR112022005406 A2 BR 112022005406A2 BR 112022005406 A BR112022005406 A BR 112022005406A BR 112022005406 A BR112022005406 A BR 112022005406A BR 112022005406 A2 BR112022005406 A2 BR 112022005406A2
Authority
BR
Brazil
Prior art keywords
block
interpolation filter
motion vector
sub
afim
Prior art date
Application number
BR112022005406A
Other languages
English (en)
Inventor
Mikhailovich Solovyev Timofey
Borisovitch Sychev Maxim
Chen Huanbang
Alexandrovich Karabutov Alexander
Igorevich Chernyak Roman
Yurievich Ikonin Sergey
Yang Haitao
Alexandrovna Alshina Elena
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 BR112022005406A2 publication Critical patent/BR112022005406A2/pt

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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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/513—Processing of motion vectors
    • 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
    • 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
    • H04N19/103—Selection of coding mode or of prediction mode
    • H04N19/105—Selection of the reference unit for prediction within a chosen coding or prediction mode, e.g. adaptive choice of position and number of pixels used for prediction
    • 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
    • H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
    • H04N19/122—Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
    • 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
    • H04N19/136—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
    • H04N19/176—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
    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
    • H04N19/51—Motion estimation or motion compensation
    • H04N19/55—Motion estimation with spatial constraints, e.g. at image or region borders
    • 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
    • H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
    • H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
    • 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
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

RESTRIÇÕES DE MODELO DE MOVIMENTO AFIM PARA REDUÇÃO DE LARGURA DE BANDA DE MEMÓRIA DE FILTRO DE INTERPOLAÇÃO APRIMORADO. Um método para codificar um vídeo implementado em um codificador ou em um decodificador incluindo o filtro de interpolação aprimorado, EIF, para compensação de movimento, o método compreendendo: i) determinar vetores de movimento de ponto de controle, CPMVs, para um bloco de acordo com predição inter afim, o bloco sendo um bloco afim ou um sub-bloco do bloco afim; ii) para um tamanho de sub-bloco predefinido determinar uma área de referência para um sub-bloco com o tamanho de sub-bloco predefinido de acordo com valores dos CPMVs; iii) comparar a área de referência determinada com um limiar predefinido; iv) aplicar EIF para compensação de movimento, compreendendo derivar o campo de vetor de movimento baseado em pixel para o bloco; em que se a área de referência determinada for maior que o limiar, derivar o campo de vetor de movimento baseado em pixel para o bloco compreende adicionalmente clipping de vetor de movimento, em que faixa de clipping de vetor de movimento é determinada com base em modelo de movimento do bloco e no tamanho do bloco.
BR112022005406A 2019-09-30 2020-09-30 Restrições de modelo de movimento afim para redução de largura de banda de memória de filtro de interpolação aprimorado BR112022005406A2 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
RU2019000691 2019-09-30
US202062958291P 2020-01-07 2020-01-07
PCT/RU2020/050258 WO2020256600A2 (en) 2019-09-30 2020-09-30 Affine motion model restrictions for memory bandwidth reduction of enhanced interpolation filter

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BR112022005406A2 true BR112022005406A2 (pt) 2022-11-29

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Country Status (6)

Country Link
US (1) US20220174326A1 (pt)
EP (1) EP4026333A4 (pt)
JP (1) JP7414127B2 (pt)
CN (1) CN114450958B (pt)
BR (1) BR112022005406A2 (pt)
WO (1) WO2020256600A2 (pt)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11357056B2 (en) 2017-10-27 2022-06-07 Huawei Technolgoies Co., Ltd. Random access method and apparatus
CN114503558B (zh) * 2019-09-30 2023-10-20 华为技术有限公司 插值滤波器在仿射运动补偿中的适应性使用
US20240098299A1 (en) * 2022-09-21 2024-03-21 Tencent America LLC Method and apparatus for motion vector prediction based on subblock motion vector

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10638152B2 (en) * 2016-03-15 2020-04-28 Mediatek Inc. Method and apparatus of video coding with affine motion compensation
US10560712B2 (en) * 2016-05-16 2020-02-11 Qualcomm Incorporated Affine motion prediction for video coding
WO2019013217A1 (ja) * 2017-07-12 2019-01-17 シャープ株式会社 補正装置、撮像装置、補正装置の制御方法、および制御プログラム
US10609384B2 (en) * 2017-09-21 2020-03-31 Futurewei Technologies, Inc. Restriction on sub-block size derivation for affine inter prediction
US20200236385A1 (en) * 2017-10-03 2020-07-23 Nec Corporation Video coding device, video decoding device, video coding method, video decoding method and program
US11172229B2 (en) * 2018-01-12 2021-11-09 Qualcomm Incorporated Affine motion compensation with low bandwidth
CN116437082A (zh) * 2018-06-25 2023-07-14 Oppo广东移动通信有限公司 帧内预测方法和装置
WO2020098647A1 (en) * 2018-11-12 2020-05-22 Beijing Bytedance Network Technology Co., Ltd. Bandwidth control methods for affine prediction
US11317111B2 (en) * 2019-09-29 2022-04-26 Qualcomm Incorporated Affine coding with vector clipping

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Publication number Publication date
EP4026333A4 (en) 2022-11-02
JP2022550032A (ja) 2022-11-30
WO2020256600A3 (en) 2021-03-04
CN114450958A (zh) 2022-05-06
JP7414127B2 (ja) 2024-01-16
CN114450958B (zh) 2023-08-22
EP4026333A2 (en) 2022-07-13
US20220174326A1 (en) 2022-06-02
WO2020256600A2 (en) 2020-12-24

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