CN114342378A - 关于利用光流的预测细化的方法和装置 - Google Patents

关于利用光流的预测细化的方法和装置 Download PDF

Info

Publication number
CN114342378A
CN114342378A CN202080059396.0A CN202080059396A CN114342378A CN 114342378 A CN114342378 A CN 114342378A CN 202080059396 A CN202080059396 A CN 202080059396A CN 114342378 A CN114342378 A CN 114342378A
Authority
CN
China
Prior art keywords
decoder
prof
flag
block
samples
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202080059396.0A
Other languages
English (en)
Chinese (zh)
Inventor
修晓宇
陈漪纹
王祥林
于冰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Dajia Internet Information Technology Co Ltd
Original Assignee
Beijing Dajia Internet Information Technology 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 Technology Co Ltd filed Critical Beijing Dajia Internet Information Technology Co Ltd
Priority to CN202210578295.5A priority Critical patent/CN115002454B/zh
Publication of CN114342378A publication Critical patent/CN114342378A/zh
Pending legal-status Critical Current

Links

Images

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
    • H04N19/50—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
    • H04N19/105—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
    • H04N19/103—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
    • H04N19/119—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
    • H04N19/136—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
    • H04N19/157—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)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
CN202080059396.0A 2019-07-10 2020-07-10 关于利用光流的预测细化的方法和装置 Pending CN114342378A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210578295.5A CN115002454B (zh) 2019-07-10 2020-07-10 关于利用光流的预测细化的方法和装置

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201962872700P 2019-07-10 2019-07-10
US62/872,700 2019-07-10
US201962873837P 2019-07-12 2019-07-12
US62/873,837 2019-07-12
PCT/US2020/041701 WO2021007557A1 (en) 2019-07-10 2020-07-10 Methods and apparatus on prediction refinement with optical flow

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CN202210578295.5A Division CN115002454B (zh) 2019-07-10 2020-07-10 关于利用光流的预测细化的方法和装置

Publications (1)

Publication Number Publication Date
CN114342378A true CN114342378A (zh) 2022-04-12

Family

ID=74115339

Family Applications (2)

Application Number Title Priority Date Filing Date
CN202080059396.0A Pending CN114342378A (zh) 2019-07-10 2020-07-10 关于利用光流的预测细化的方法和装置
CN202210578295.5A Active CN115002454B (zh) 2019-07-10 2020-07-10 关于利用光流的预测细化的方法和装置

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN202210578295.5A Active CN115002454B (zh) 2019-07-10 2020-07-10 关于利用光流的预测细化的方法和装置

Country Status (7)

Country Link
US (2) US12132910B2 (https=)
EP (2) EP4554217A3 (https=)
JP (5) JP7313533B2 (https=)
KR (3) KR102453806B1 (https=)
CN (2) CN114342378A (https=)
MX (4) MX2022000395A (https=)
WO (1) WO2021007557A1 (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025002276A1 (en) * 2023-06-29 2025-01-02 Douyin Vision Co., Ltd. Method, apparatus, and medium for video processing

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021052225A (ja) 2019-09-20 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
CN119450036B (zh) * 2019-09-24 2025-10-14 Oppo广东移动通信有限公司 用于基于子画面的图像编码/解码的方法和装置及发送比特流的方法
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
US20220201313A1 (en) * 2020-12-22 2022-06-23 Qualcomm Incorporated Bi-directional optical flow in video coding
US11949863B2 (en) * 2021-08-02 2024-04-02 Tencent America LLC Geometric partition mode with intra block copy
US20250211783A1 (en) * 2022-03-21 2025-06-26 Wilus Institute Of Standards And Technology Inc. Video signal processing method based on template matching, and device therefor

Family Cites Families (12)

* 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
KR102638991B1 (ko) * 2016-03-24 2024-02-21 엘지전자 주식회사 비디오 코딩 시스템에서 인터 예측 방법 및 장치
KR102873107B1 (ko) * 2016-04-25 2025-10-17 엘지전자 주식회사 영상 코딩 시스템에서 인터 예측 방법 및 장치
WO2018048265A1 (ko) * 2016-09-11 2018-03-15 엘지전자 주식회사 향상된 옵티컬 플로우 움직임 백터를 이용하여 비디오 신호를 처리하는 방법 및 장치
US10523964B2 (en) 2017-03-13 2019-12-31 Qualcomm Incorporated Inter prediction refinement based on bi-directional optical flow (BIO)
US10701390B2 (en) * 2017-03-14 2020-06-30 Qualcomm Incorporated Affine motion information derivation
EP3649780B1 (en) * 2017-07-03 2025-06-25 InterDigital VC Holdings, Inc. Motion-compensation prediction based on bi-directional optical flow
KR102638336B1 (ko) 2017-12-14 2024-02-19 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
US11985330B2 (en) * 2019-04-12 2024-05-14 Hfi Innovation Inc. Method and apparatus of simplified affine subblock process for video coding system
WO2021001220A1 (en) * 2019-07-01 2021-01-07 Interdigital Vc Holdings France, Sas Bi-directional optical flow refinement of affine motion compensation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2025002276A1 (en) * 2023-06-29 2025-01-02 Douyin Vision Co., Ltd. Method, apparatus, and medium for video processing

Also Published As

Publication number Publication date
JP7813753B2 (ja) 2026-02-13
KR102942293B1 (ko) 2026-03-19
CN115002454B (zh) 2024-11-15
CN115002454A (zh) 2022-09-02
KR102453806B1 (ko) 2022-10-11
MX2025007807A (es) 2025-08-01
US20240430438A1 (en) 2024-12-26
MX2022000395A (es) 2022-04-06
JP2022531629A (ja) 2022-07-07
EP3991431A1 (en) 2022-05-04
JP2023089253A (ja) 2023-06-27
JP2023159292A (ja) 2023-10-31
EP3991431A4 (en) 2022-09-28
US20220132138A1 (en) 2022-04-28
MX2025007806A (es) 2025-08-01
MX2025007805A (es) 2025-08-01
JP7813752B2 (ja) 2026-02-13
JP7763805B2 (ja) 2025-11-04
JP7313533B2 (ja) 2023-07-24
KR20220025205A (ko) 2022-03-03
JP2023164968A (ja) 2023-11-14
EP4554217A3 (en) 2025-06-25
WO2021007557A1 (en) 2021-01-14
US12132910B2 (en) 2024-10-29
JP2025172820A (ja) 2025-11-26
EP4554217A2 (en) 2025-05-14
KR20220140047A (ko) 2022-10-17
US12593048B2 (en) 2026-03-31
KR20260042316A (ko) 2026-03-30

Similar Documents

Publication Publication Date Title
JP7372433B2 (ja) オプティカルフローを用いた予測リファインメントに関する方法および装置
CN114125441B (zh) 对视频信号解码的双向光流方法、计算设备和存储介质
CN115002454B (zh) 关于利用光流的预测细化的方法和装置
US12574545B2 (en) Methods and apparatuses for prediction refinement with optical flow, bi-directional optical flow, and decoder-side motion vector refinement
US20260059113A1 (en) Methods and apparatus for prediction refinement with optical flow
EP3970374A1 (en) Methods and apparatus for prediction refinement with optical flow

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination