MX2021011370A - Método y aparato para refinamiento de predicción con flujo óptico para un bloque codificado afín. - Google Patents
Método y aparato para refinamiento de predicción con flujo óptico para un bloque codificado afín.Info
- Publication number
- MX2021011370A MX2021011370A MX2021011370A MX2021011370A MX2021011370A MX 2021011370 A MX2021011370 A MX 2021011370A MX 2021011370 A MX2021011370 A MX 2021011370A MX 2021011370 A MX2021011370 A MX 2021011370A MX 2021011370 A MX2021011370 A MX 2021011370A
- Authority
- MX
- Mexico
- Prior art keywords
- block
- coded block
- affine coded
- prediction
- optical flow
- Prior art date
Links
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
- H04N19/50—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
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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
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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
- H04N19/119—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
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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
- H04N19/169—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
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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
- H04N19/169—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
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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
- H04N19/169—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
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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
- H04N19/50—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
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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
- H04N19/50—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
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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
- H04N19/50—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)
Abstract
La presente invención se refiere a un aparato, un codificador, un decodificador y métodos correspondientes para refinamiento de predicción con flujo óptico (PROF) para un bloque codificado afín, en el cual cuando una pluralidad de condiciones de decisión de flujo óptico se cumple para el bloque codificado afín, ejecutar un proceso PROF para un sub-bloque actual del bloque codificado afín para obtener valores de muestra de predicción refinados del sub-bloque actual del bloque codificado afín; después que se ejecuta la compensación de movimiento afín basada en sub-bloque, un valor de muestra de predicción de la muestra actual del sub-bloque actual es refinado agregando un valor de predicción delta; por lo tanto, permite una mejor compensación entre complejidad de codificacón y precisión de predicción.
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 |
---|---|
MX2021011370A true MX2021011370A (es) | 2021-11-12 |
Family
ID=72519643
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2021011370A MX2021011370A (es) | 2019-03-20 | 2020-03-20 | Método y aparato para refinamiento de predicción con flujo óptico para un bloque codificado afín. |
Country Status (7)
Country | Link |
---|---|
EP (2) | EP3932054B1 (es) |
JP (2) | JP2022527701A (es) |
KR (1) | KR20210134400A (es) |
CN (1) | CN113615173A (es) |
BR (1) | BR112021018644A2 (es) |
MX (1) | MX2021011370A (es) |
WO (1) | WO2020187316A1 (es) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
Family Cites Families (5)
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 |
CN108293113B (zh) * | 2015-10-22 | 2022-01-21 | Lg电子株式会社 | 图像编码系统中的基于建模的图像解码方法和设备 |
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 |
CN110115032B (zh) * | 2016-12-22 | 2021-07-20 | 联发科技股份有限公司 | 用于视频编解码的运动细化的方法以及装置 |
CN117478884A (zh) * | 2017-07-03 | 2024-01-30 | Vid拓展公司 | 用于视频编解码的设备、方法 |
-
2020
- 2020-03-20 KR KR1020217033210A patent/KR20210134400A/ko unknown
- 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 EP EP24155675.2A patent/EP4344205A3/en active Pending
- 2020-03-20 MX MX2021011370A patent/MX2021011370A/es unknown
- 2020-03-20 BR BR112021018644A patent/BR112021018644A2/pt unknown
- 2020-03-20 WO PCT/CN2020/080412 patent/WO2020187316A1/en unknown
- 2020-03-20 JP JP2021556816A patent/JP2022527701A/ja active Pending
-
2023
- 2023-11-24 JP JP2023199242A patent/JP2024019406A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
US20220078442A1 (en) | 2022-03-10 |
EP4344205A3 (en) | 2024-05-22 |
EP3932054A4 (en) | 2022-07-13 |
WO2020187316A1 (en) | 2020-09-24 |
EP3932054B1 (en) | 2024-04-24 |
JP2022527701A (ja) | 2022-06-03 |
KR20210134400A (ko) | 2021-11-09 |
EP4344205A2 (en) | 2024-03-27 |
BR112021018644A2 (pt) | 2021-11-23 |
EP3932054A1 (en) | 2022-01-05 |
JP2024019406A (ja) | 2024-02-09 |
CN113615173A (zh) | 2021-11-05 |
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