CN113615173A - 对仿射译码块进行光流预测修正的方法及装置 - Google Patents

对仿射译码块进行光流预测修正的方法及装置 Download PDF

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CN113615173A
CN113615173A CN202080023321.7A CN202080023321A CN113615173A CN 113615173 A CN113615173 A CN 113615173A CN 202080023321 A CN202080023321 A CN 202080023321A CN 113615173 A CN113615173 A CN 113615173A
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prediction
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sample
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陈焕浜
杨海涛
陈建乐
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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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
    • H04N19/103—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
    • H04N19/134—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
    • H04N19/50—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
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    • H04N19/527—Global motion vector estimation
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    • 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
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    • 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
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    • 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
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    • 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
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    • 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
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    • H04N19/51—Motion estimation or motion compensation
    • H04N19/513—Processing of motion vectors
    • H04N19/521—Processing of motion vectors for estimating the reliability of the determined motion vectors or motion vector field, e.g. for smoothing the motion vector field or for correcting motion vectors
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    • 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
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    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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    • 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
    • H04N19/70—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

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Compression Of Band Width Or Redundancy In Fax (AREA)
CN202080023321.7A 2019-03-20 2020-03-20 对仿射译码块进行光流预测修正的方法及装置 Pending CN113615173A (zh)

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US201962821440P 2019-03-20 2019-03-20
US62/821,440 2019-03-20
US201962839765P 2019-04-28 2019-04-28
US62/839,765 2019-04-28
PCT/CN2020/080412 WO2020187316A1 (en) 2019-03-20 2020-03-20 Method and apparatus for prediction refinement with optical flow for an affine coded block

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EP (2) EP3932054B1 (https=)
JP (3) JP7590337B2 (https=)
KR (2) KR102873144B1 (https=)
CN (2) CN113615173A (https=)
BR (1) BR112021018644A2 (https=)
ES (1) ES2992659T3 (https=)
HU (1) HUE066834T2 (https=)
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KR102822624B1 (ko) * 2018-10-05 2025-06-18 엘지전자 주식회사 Mpm 리스트를 사용하는 인트라 예측 기반 영상 코딩 방법 및 그 장치
US11272203B2 (en) * 2019-07-23 2022-03-08 Tencent America LLC Method and apparatus for video coding
CN120128701B (zh) * 2019-09-12 2026-02-17 阿里巴巴（中国）有限公司 计算机实现的编解码方法及非暂时性计算机可读存储介质
KR102502614B1 (ko) * 2019-09-17 2023-02-23 베이징 다지아 인터넷 인포메이션 테크놀로지 컴퍼니 리미티드 광학 흐름을 사용한 예측 미세조정을 위한 방법 및 장치
CN112770113B (zh) * 2019-11-05 2024-08-23 杭州海康威视数字技术股份有限公司 一种编解码方法、装置及其设备
WO2022257954A1 (en) * 2021-06-10 2022-12-15 Beijing Bytedance Network Technology Co., Ltd. Method, device, and medium for video processing
CN113793259B (zh) * 2021-11-15 2022-02-15 深圳思谋信息科技有限公司 图像变焦方法、计算机设备和存储介质
WO2024149035A1 (en) * 2023-01-13 2024-07-18 Mediatek Inc. Methods and apparatus of affine motion compensation for block boundaries and motion refinement in video coding
US20240380913A1 (en) * 2023-05-09 2024-11-14 Microsoft Technology Licensing, Llc Motion compensation via inertial tracking and optical flow
US12489891B2 (en) * 2023-06-16 2025-12-02 Zoom Communications, Inc. Reducing grid artifacts in video frames
US20250267274A1 (en) * 2024-02-20 2025-08-21 Tencent America LLC Uni-directional optical flow

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KR20180058224A (ko) * 2015-10-22 2018-05-31 엘지전자 주식회사 영상 코딩 시스템에서 모델링 기반 영상 디코딩 방법 및 장치
CN105847804B (zh) * 2016-05-18 2017-12-15 信阳师范学院 一种基于稀疏冗余表示模型的视频帧率上转换方法
WO2018113658A1 (en) * 2016-12-22 2018-06-28 Mediatek Inc. Method and apparatus of motion refinement for video coding
US10904565B2 (en) * 2017-06-23 2021-01-26 Qualcomm Incorporated Memory-bandwidth-efficient design for bi-directional optical flow (BIO)
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JP6867611B2 (ja) * 2019-03-11 2021-04-28 Kddi株式会社 画像復号装置、画像復号方法及びプログラム
JP7669278B2 (ja) 2019-03-17 2025-04-28 北京字節跳動網絡技術有限公司 オプティカルフローベースの予測精緻化の計算
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KR20210134400A (ko) 2021-11-09
US12003733B2 (en) 2024-06-04
EP4344205A2 (en) 2024-03-27
EP3932054A1 (en) 2022-01-05
HUE066834T2 (hu) 2024-09-28
EP3932054A4 (en) 2022-07-13
JP2025184871A (ja) 2025-12-18
US20240364895A1 (en) 2024-10-31
MX2021011370A (es) 2021-11-12
EP3932054B1 (en) 2024-04-24
WO2020187316A1 (en) 2020-09-24
KR20250153324A (ko) 2025-10-24
JP2024019406A (ja) 2024-02-09
US20250254323A1 (en) 2025-08-07
KR102873144B1 (ko) 2025-10-16
CN118945317A (zh) 2024-11-12
EP4344205A3 (en) 2024-05-22
ES2992659T3 (en) 2024-12-16
PL3932054T3 (pl) 2024-07-29
US12273532B2 (en) 2025-04-08
CN118945317B (zh) 2025-08-26
US20220078442A1 (en) 2022-03-10
JP7590337B2 (ja) 2024-11-26
JP7736764B2 (ja) 2025-09-09
JP2022527701A (ja) 2022-06-03
BR112021018644A2 (pt) 2021-11-23

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