CN114175659B - 用于双向光流的比特深度控制的装置和方法 - Google Patents

用于双向光流的比特深度控制的装置和方法

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Publication number
CN114175659B
CN114175659B CN202080045432.8A CN202080045432A CN114175659B CN 114175659 B CN114175659 B CN 114175659B CN 202080045432 A CN202080045432 A CN 202080045432A CN 114175659 B CN114175659 B CN 114175659B
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China
Prior art keywords
value
decoder
predicted
sample
difference
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CN202080045432.8A
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English (en)
Chinese (zh)
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CN114175659A (zh
Inventor
修晓宇
陈漪纹
王祥林
马宗全
朱弘正
叶水明
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Beijing Dajia Internet Information Technology Co Ltd
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Beijing Dajia Internet Information Technology Co Ltd
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Publication of CN114175659A publication Critical patent/CN114175659A/zh
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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
    • H04N19/103—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
    • H04N19/169—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)
CN202080045432.8A 2019-06-25 2020-06-25 用于双向光流的比特深度控制的装置和方法 Active CN114175659B (zh)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201962866607P 2019-06-25 2019-06-25
US62/866,607 2019-06-25
US201962867185P 2019-06-26 2019-06-26
US62/867,185 2019-06-26
PCT/US2020/039702 WO2020264221A1 (fr) 2019-06-25 2020-06-25 Appareils et procédés pour réguler la largeur binaire d'un flux optique bidirectionnel

Publications (2)

Publication Number Publication Date
CN114175659A CN114175659A (zh) 2022-03-11
CN114175659B true CN114175659B (zh) 2026-02-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202080045432.8A Active CN114175659B (zh) 2019-06-25 2020-06-25 用于双向光流的比特深度控制的装置和方法

Country Status (2)

Country Link
CN (1) CN114175659B (fr)
WO (1) WO2020264221A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020142762A1 (fr) * 2019-01-06 2020-07-09 Beijing Dajia Internet Information Technology Co., Ltd. Commande de largeur de bit destinée à un flux optique bidirectionnel

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100890512B1 (ko) * 2008-09-11 2009-03-26 엘지전자 주식회사 모션벡터 결정방법
EP2661892B1 (fr) * 2011-01-07 2022-05-18 Nokia Technologies Oy Prédiction de mouvement dans un codage vidéo
WO2016054765A1 (fr) * 2014-10-08 2016-04-14 Microsoft Technology Licensing, Llc Ajustements apportés au codage et au décodage lors de la commutation entre espaces colorimétriques
WO2017036399A1 (fr) * 2015-09-02 2017-03-09 Mediatek Inc. Procédé et appareil de compensation de mouvement pour un codage vidéo sur la base de techniques de flux optique à biprédiction
EP4661401A3 (fr) * 2016-02-03 2026-02-25 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Dispositif de décodage d'image animée, dispositif de codage d'image animée et dispositif de génération d'image de prédiction
WO2018230493A1 (fr) * 2017-06-14 2018-12-20 シャープ株式会社 Dispositif de décodage vidéo, dispositif de codage vidéo, dispositif de génération d'image de prévision et dispositif de dérivation de vecteur de mouvement
US10904565B2 (en) * 2017-06-23 2021-01-26 Qualcomm Incorporated Memory-bandwidth-efficient design for bi-directional optical flow (BIO)
KR102580910B1 (ko) * 2017-08-29 2023-09-20 에스케이텔레콤 주식회사 양방향 옵티컬 플로우를 이용한 움직임 보상 방법 및 장치

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Versatile Video Coding (Draft 5);Benjamin Bross;Joint Video Experts Team (JVET) of ITU-T SG 16 WP 3 and ISO/IEC JTC 1/SC 29/WG 11 14th Meeting: Geneva, CH, 19–27 Mar. 2019;20190327;第8.5.6.4节 *

Also Published As

Publication number Publication date
CN114175659A (zh) 2022-03-11
WO2020264221A1 (fr) 2020-12-30

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