BR112021018644A2 - Método e aparelho para refinamento de predição com fluxo óptico para um bloco codificado afim - Google Patents
Método e aparelho para refinamento de predição com fluxo óptico para um bloco codificado afimInfo
- Publication number
- BR112021018644A2 BR112021018644A2 BR112021018644A BR112021018644A BR112021018644A2 BR 112021018644 A2 BR112021018644 A2 BR 112021018644A2 BR 112021018644 A BR112021018644 A BR 112021018644A BR 112021018644 A BR112021018644 A BR 112021018644A BR 112021018644 A2 BR112021018644 A2 BR 112021018644A2
- Authority
- BR
- Brazil
- Prior art keywords
- block
- optical flow
- prediction
- coded block
- affine coded
- Prior art date
Links
- PXFBZOLANLWPMH-UHFFFAOYSA-N 16-Epiaffinine Natural products C1C(C2=CC=CC=C2N2)=C2C(=O)CC2C(=CC)CN(C)C1C2CO PXFBZOLANLWPMH-UHFFFAOYSA-N 0.000 title abstract 6
- 230000003287 optical effect Effects 0.000 title abstract 4
Classifications
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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
- 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
- H04N19/51—Motion estimation or motion compensation
- H04N19/527—Global motion vector estimation
-
- 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
- H04N19/517—Processing of motion vectors by encoding
- H04N19/52—Processing of motion vectors by encoding by predictive encoding
-
- 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
- H04N19/169—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
- H04N19/174—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
-
- 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
- H04N19/513—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
-
- 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
- H04N19/50—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
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)
- Compression Of Band Width Or Redundancy In Fax (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201962821440P | 2019-03-20 | 2019-03-20 | |
| US201962839765P | 2019-04-28 | 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 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR112021018644A2 true BR112021018644A2 (pt) | 2021-11-23 |
Family
ID=72519643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR112021018644A BR112021018644A2 (pt) | 2019-03-20 | 2020-03-20 | Método e aparelho para refinamento de predição com fluxo óptico para um bloco codificado afim |
Country Status (11)
| Country | Link |
|---|---|
| US (3) | US12003733B2 (https=) |
| 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=) |
| MX (1) | MX2021011370A (https=) |
| PL (1) | PL3932054T3 (https=) |
| WO (1) | WO2020187316A1 (https=) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104717501A (zh) * | 2012-09-28 | 2015-06-17 | 英特尔公司 | 层间像素样本预测 |
| 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) |
| EP3649780B1 (en) * | 2017-07-03 | 2025-06-25 | InterDigital VC Holdings, Inc. | Motion-compensation prediction based on bi-directional optical flow |
| IL285212B2 (en) | 2019-02-07 | 2024-06-01 | Vid Scale Inc | Systems, means and methods for refining Internet prediction with optical flow |
| KR102783514B1 (ko) * | 2019-02-24 | 2025-03-19 | 엘지전자 주식회사 | Dmvr 기반의 인터 예측 방법 및 장치 |
| 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 |
| US11343525B2 (en) | 2019-03-19 | 2022-05-24 | Tencent America LLC | Method and apparatus for video coding by constraining sub-block motion vectors and determining adjustment values based on constrained sub-block motion vectors |
-
2020
- 2020-03-20 JP JP2021556816A patent/JP7590337B2/ja active Active
- 2020-03-20 WO PCT/CN2020/080412 patent/WO2020187316A1/en not_active Ceased
- 2020-03-20 EP EP20774646.2A patent/EP3932054B1/en active Active
- 2020-03-20 CN CN202080023321.7A patent/CN113615173A/zh active Pending
- 2020-03-20 BR BR112021018644A patent/BR112021018644A2/pt unknown
- 2020-03-20 CN CN202410918815.1A patent/CN118945317B/zh active Active
- 2020-03-20 KR KR1020217033210A patent/KR102873144B1/ko active Active
- 2020-03-20 PL PL20774646.2T patent/PL3932054T3/pl unknown
- 2020-03-20 EP EP24155675.2A patent/EP4344205A3/en active Pending
- 2020-03-20 ES ES20774646T patent/ES2992659T3/es active Active
- 2020-03-20 MX MX2021011370A patent/MX2021011370A/es unknown
- 2020-03-20 HU HUE20774646A patent/HUE066834T2/hu unknown
- 2020-03-20 KR KR1020257034293A patent/KR20250153324A/ko active Pending
-
2021
- 2021-09-17 US US17/478,697 patent/US12003733B2/en active Active
-
2023
- 2023-11-24 JP JP2023199242A patent/JP7736764B2/ja active Active
-
2024
- 2024-05-03 US US18/654,446 patent/US12273532B2/en active Active
-
2025
- 2025-03-07 US US19/073,836 patent/US20250254323A1/en active Pending
- 2025-08-27 JP JP2025141524A patent/JP2025184871A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| 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 |
| CN113615173A (zh) | 2021-11-05 |
| JP7590337B2 (ja) | 2024-11-26 |
| JP7736764B2 (ja) | 2025-09-09 |
| JP2022527701A (ja) | 2022-06-03 |
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