MX2022000395A - Métodos y aparatos en refinamiento de predicción con flujo óptico. - Google Patents

Métodos y aparatos en refinamiento de predicción con flujo óptico.

Info

Publication number
MX2022000395A
MX2022000395A MX2022000395A MX2022000395A MX2022000395A MX 2022000395 A MX2022000395 A MX 2022000395A MX 2022000395 A MX2022000395 A MX 2022000395A MX 2022000395 A MX2022000395 A MX 2022000395A MX 2022000395 A MX2022000395 A MX 2022000395A
Authority
MX
Mexico
Prior art keywords
obtaining
video
prediction samples
samples
video block
Prior art date
Application number
MX2022000395A
Other languages
English (en)
Inventor
Xianglin Wang
Xiaoyu Xiu
Yi- Wen Chen
Bing Yu
Original Assignee
Beijing Dajia Internet Information 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 Beijing Dajia Internet Information Tech Co Ltd filed Critical Beijing Dajia Internet Information Tech Co Ltd
Publication of MX2022000395A publication Critical patent/MX2022000395A/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
    • H04N19/134—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
    • H04N19/50—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
    • H04N19/577—Motion compensation with bidirectional frame interpolation, i.e. using B-pictures
    • 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
    • H04N19/109—Selection of coding mode or of prediction mode among a plurality of temporal predictive coding modes
    • 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
    • H04N19/119—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
    • H04N19/102—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
    • H04N19/157—Assigned coding mode, i.e. the coding mode being predefined or preselected to be further used for selection of another element or parameter
    • H04N19/159—Prediction type, e.g. intra-frame, inter-frame or bidirectional frame 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
    • H04N19/169—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
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • 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
    • H04N19/50—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
    • H04N19/573—Motion compensation with multiple frame prediction using two or more reference frames in a given prediction direction

Landscapes

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

Abstract

Se proporcionan métodos, aparatos y medios de almacenamiento legibles en computadora no transitorios para decodificar una señal de video; el método incluye dividir un bloque de video en múltiples sub-bloques de video no superpuestos, dividir un bloque de video en múltiples sub-bloques de video no superpuestos, obtener una primera imagen de referencia ?? (0) y una segunda imagen de referencia ?? (1) , obtener primeras muestras de predicción ?? (0) (??,??), obtener segundas muestras de predicción ?? (1) (??,??), obtener valores de gradiente horizontal y vertical de de las primeras muestras de predicción ?? (0) (??,??) y segundas muestras de predicción ?? (1) (??,??), obtener refinamientos de movimiento para muestras en el sub-bloque de video con base en el BDOF cuando el bloque de video no es codificado en modo afín, obtener refinamientos de movimiento para muestras en el sub-bloque de video con base en el PROF cuando el bloque de video se codifica en modo afín y obtener muestras de predicción del bloque de video con base en los refinamientos de movimiento.
MX2022000395A 2019-07-10 2020-07-10 Métodos y aparatos en refinamiento de predicción con flujo óptico. MX2022000395A (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201962872700P 2019-07-10 2019-07-10
US201962873837P 2019-07-12 2019-07-12
PCT/US2020/041701 WO2021007557A1 (en) 2019-07-10 2020-07-10 Methods and apparatus on prediction refinement with optical flow

Publications (1)

Publication Number Publication Date
MX2022000395A true MX2022000395A (es) 2022-04-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
MX2022000395A MX2022000395A (es) 2019-07-10 2020-07-10 Métodos y aparatos en refinamiento de predicción con flujo óptico.

Country Status (7)

Country Link
US (1) US20220132138A1 (es)
EP (1) EP3991431A4 (es)
JP (4) JP7313533B2 (es)
KR (2) KR20220140047A (es)
CN (2) CN114342378A (es)
MX (1) MX2022000395A (es)
WO (1) WO2021007557A1 (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220044843A (ko) * 2019-09-24 2022-04-11 엘지전자 주식회사 서브픽처 기반 영상 부호화/복호화 방법, 장치 및 비트스트림을 전송하는 방법
JP2021052389A (ja) * 2020-08-21 2021-04-01 Kddi株式会社 画像復号装置、画像復号方法及びプログラム
US11949863B2 (en) * 2021-08-02 2024-04-02 Tencent America LLC Geometric partition mode with intra block copy
WO2023182781A1 (ko) * 2022-03-21 2023-09-28 주식회사 윌러스표준기술연구소 템플릿 매칭에 기초한 비디오 신호 처리 방법 및 이를 위한 장치

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170026334A (ko) * 2014-07-06 2017-03-08 엘지전자 주식회사 비디오 신호의 처리 방법 및 이를 위한 장치
WO2017036399A1 (en) * 2015-09-02 2017-03-09 Mediatek Inc. Method and apparatus of motion compensation for video coding based on bi prediction optical flow techniques
WO2017164441A1 (ko) * 2016-03-24 2017-09-28 엘지전자 주식회사 비디오 코딩 시스템에서 인터 예측 방법 및 장치
WO2017188566A1 (ko) * 2016-04-25 2017-11-02 엘지전자 주식회사 영상 코딩 시스템에서 인터 예측 방법 및 장치
US10728572B2 (en) * 2016-09-11 2020-07-28 Lg Electronics Inc. Method and apparatus for processing video signal by using improved optical flow motion vector
US10701390B2 (en) * 2017-03-14 2020-06-30 Qualcomm Incorporated Affine motion information derivation
JP7168593B2 (ja) * 2017-07-03 2022-11-09 ヴィド スケール インコーポレイテッド 双方向オプティカルフローに基づいた動き補償予測
KR20240025058A (ko) * 2017-12-14 2024-02-26 엘지전자 주식회사 영상 코딩 시스템에서 인터 예측에 따른 영상 디코딩 방법 및 장치
US11303898B2 (en) * 2019-04-03 2022-04-12 Mediatek Inc. Coding transform coefficients with throughput constraints
TWI738292B (zh) * 2019-04-12 2021-09-01 聯發科技股份有限公司 用於視頻編解碼系統的簡化仿射子塊處理的方法及裝置
WO2021001220A1 (en) * 2019-07-01 2021-01-07 Interdigital Vc Holdings France, Sas Bi-directional optical flow refinement of affine motion compensation

Also Published As

Publication number Publication date
EP3991431A1 (en) 2022-05-04
KR20220140047A (ko) 2022-10-17
JP2023159292A (ja) 2023-10-31
CN114342378A (zh) 2022-04-12
JP2023164968A (ja) 2023-11-14
JP2023089253A (ja) 2023-06-27
JP7313533B2 (ja) 2023-07-24
WO2021007557A1 (en) 2021-01-14
US20220132138A1 (en) 2022-04-28
JP2022531629A (ja) 2022-07-07
EP3991431A4 (en) 2022-09-28
KR102453806B1 (ko) 2022-10-11
KR20220025205A (ko) 2022-03-03
CN115002454A (zh) 2022-09-02

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