MX2021013034A - Metodos y aparatos para el refinamiento de prediccion con flujo optico. - Google Patents
Metodos y aparatos para el refinamiento de prediccion con flujo optico.Info
- Publication number
- MX2021013034A MX2021013034A MX2021013034A MX2021013034A MX2021013034A MX 2021013034 A MX2021013034 A MX 2021013034A MX 2021013034 A MX2021013034 A MX 2021013034A MX 2021013034 A MX2021013034 A MX 2021013034A MX 2021013034 A MX2021013034 A MX 2021013034A
- Authority
- MX
- Mexico
- Prior art keywords
- prediction
- prediction samples
- obtaining
- refinement
- values
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title abstract 2
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
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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
- H04N19/573—Motion compensation with multiple frame prediction using two or more reference frames in a given prediction direction
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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
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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
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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
- H04N19/132—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
- H04N19/176—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
- H04N19/537—Motion estimation other than block-based
- H04N19/54—Motion estimation other than block-based using feature points or meshes
-
- 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
- H04N19/563—Motion estimation with padding, i.e. with filling of non-object values in an arbitrarily shaped picture block or region for estimation purposes
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
Abstract
Se proporciona un método para representar la profundidad de bits del refinamiento de predicción con flujo óptico (PROF), un aparato y un medio de almacenamiento no transitorio y legible por computadora. El método incluye obtener una primera imagen de referencia asociada con un bloque de video dentro de la señal de video y un primer vector de movimiento (MV) desde el bloque de video en una imagen actual hasta un bloque de referencia en la primera imagen de referencia, obtener las primeras muestras de predicción I(i, j) del bloque de video, controlar las profundidades de bits internas de los parámetros internos del PROF, obtener valores de refinamiento de predicción para las primeras muestras de predicción I(i, j) con base en valores de gradiente horizontal y vertical y diferencias de movimiento horizontal y vertical, obtener segundas muestras de predicción I'(i, j) asociadas con el segundo MV y los correspondientes valores de refinamiento de predicción para las segundas muestras de predicción I'(i, j), y obtener muestras finales de predicción con base en la combinación de las primeras muestras de predicción I(i, j), las segundas muestras de predicción I'(i, j) y los valores de refinamiento de predicción.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201962838939P | 2019-04-25 | 2019-04-25 | |
| PCT/US2020/030155 WO2020220048A1 (en) | 2019-04-25 | 2020-04-27 | Methods and apparatuses for prediction refinement with optical flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| MX2021013034A true MX2021013034A (es) | 2021-12-10 |
Family
ID=72941845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX2021013034A MX2021013034A (es) | 2019-04-25 | 2020-04-27 | Metodos y aparatos para el refinamiento de prediccion con flujo optico. |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20220046249A1 (es) |
| EP (1) | EP3942824A4 (es) |
| JP (2) | JP7269371B2 (es) |
| KR (2) | KR102399229B1 (es) |
| CN (8) | CN114125441B (es) |
| MX (1) | MX2021013034A (es) |
| WO (1) | WO2020220048A1 (es) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11523109B2 (en) * | 2019-05-02 | 2022-12-06 | Tencent America LLC | Method and apparatus for improvements of affine prof |
| CN114073090A (zh) * | 2019-07-01 | 2022-02-18 | 交互数字Vc控股法国公司 | 仿射运动补偿的双向光流细化 |
| CN114399465B (zh) * | 2021-12-08 | 2022-11-25 | 紫东信息科技(苏州)有限公司 | 良恶性溃疡识别方法及系统 |
Family Cites Families (27)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100493201C (zh) * | 2002-01-24 | 2009-05-27 | 株式会社日立制作所 | 运动图像的解码方法 |
| US8218638B2 (en) * | 2007-10-31 | 2012-07-10 | Broadcom Corporation | Method and system for optical flow based motion vector estimation for picture rate up-conversion |
| JP5092722B2 (ja) * | 2007-12-07 | 2012-12-05 | ソニー株式会社 | 画像処理装置、画像処理方法およびプログラム |
| CN101795409B (zh) * | 2010-03-03 | 2011-12-28 | 北京航空航天大学 | 内容自适应分数像素运动估计方法 |
| US10075728B2 (en) * | 2012-10-01 | 2018-09-11 | Inria Institut National De Recherche En Informatique Et En Automatique | Method and device for motion information prediction refinement |
| CN106664416B (zh) * | 2014-07-06 | 2019-11-05 | Lg电子株式会社 | 处理视频信号的方法及其装置 |
| WO2016056782A1 (ko) * | 2014-10-08 | 2016-04-14 | 엘지전자 주식회사 | 비디오 코딩에서 뎁스 픽처 코딩 방법 및 장치 |
| US20180249172A1 (en) * | 2015-09-02 | 2018-08-30 | Mediatek Inc. | Method and apparatus of motion compensation for video coding based on bi prediction optical flow techniques |
| JP2018533871A (ja) * | 2015-11-11 | 2018-11-15 | サムスン エレクトロニクス カンパニー リミテッド | ビデオ復号方法及びその装置、並びにビデオ符号化方法及びその装置 |
| EP3413563A4 (en) * | 2016-02-03 | 2019-10-23 | Sharp Kabushiki Kaisha | DEVICE FOR DECODING MOVEMENT PICTURES, APPARATUS FOR CODING MOVEMENT IMAGES AND DEVICE FOR GENERATING FORECAST PICTURES |
| EP3417617A4 (en) * | 2016-02-17 | 2019-02-27 | Telefonaktiebolaget LM Ericsson (publ) | METHOD AND DEVICES FOR CODING AND DECODING VIDEO IMAGES |
| US10958931B2 (en) * | 2016-05-11 | 2021-03-23 | Lg Electronics Inc. | Inter prediction method and apparatus in video coding system |
| WO2017197146A1 (en) * | 2016-05-13 | 2017-11-16 | Vid Scale, Inc. | Systems and methods for generalized multi-hypothesis prediction for video coding |
| WO2018113658A1 (en) * | 2016-12-22 | 2018-06-28 | Mediatek Inc. | Method and apparatus of motion refinement for video coding |
| KR102157659B1 (ko) * | 2017-01-10 | 2020-09-18 | 엘지전자 주식회사 | 360 비디오를 전송하는 방법, 360 비디오를 수신하는 방법, 360 비디오 전송 장치, 360 비디오 수신 장치 |
| US20180199057A1 (en) * | 2017-01-12 | 2018-07-12 | Mediatek Inc. | Method and Apparatus of Candidate Skipping for Predictor Refinement in Video Coding |
| 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 |
| CN110476424B (zh) * | 2017-03-16 | 2022-03-04 | 联发科技股份有限公司 | 一种视频编解码方法及装置 |
| KR102409430B1 (ko) * | 2017-04-24 | 2022-06-15 | 에스케이텔레콤 주식회사 | 움직임 보상을 위한 옵티컬 플로우 추정 방법 및 장치 |
| US10904565B2 (en) * | 2017-06-23 | 2021-01-26 | Qualcomm Incorporated | Memory-bandwidth-efficient design for bi-directional optical flow (BIO) |
| CN110832858B (zh) * | 2017-07-03 | 2023-10-13 | Vid拓展公司 | 用于视频编解码的设备、方法 |
| KR102580910B1 (ko) * | 2017-08-29 | 2023-09-20 | 에스케이텔레콤 주식회사 | 양방향 옵티컬 플로우를 이용한 움직임 보상 방법 및 장치 |
| WO2019072371A1 (en) * | 2017-10-09 | 2019-04-18 | Huawei Technologies Co., Ltd. | MEMORY ACCESS WINDOW FOR PREDICTION SUB-BLOCK MOTION VECTOR CALCULATION |
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| WO2020211867A1 (en) * | 2019-04-19 | 2020-10-22 | Beijing Bytedance Network Technology Co., Ltd. | Delta motion vector in prediction refinement with optical flow process |
-
2020
- 2020-04-27 CN CN202111339413.9A patent/CN114125441B/zh active Active
- 2020-04-27 JP JP2021563141A patent/JP7269371B2/ja active Active
- 2020-04-27 CN CN202310854533.5A patent/CN117014627B/zh active Active
- 2020-04-27 CN CN202080031089.1A patent/CN113728646A/zh active Pending
- 2020-04-27 EP EP20795945.3A patent/EP3942824A4/en active Pending
- 2020-04-27 CN CN202210505704.9A patent/CN114885177B/zh active Active
- 2020-04-27 KR KR1020217034419A patent/KR102399229B1/ko active IP Right Grant
- 2020-04-27 MX MX2021013034A patent/MX2021013034A/es unknown
- 2020-04-27 WO PCT/US2020/030155 patent/WO2020220048A1/en unknown
- 2020-04-27 CN CN202211133311.6A patent/CN115499669B/zh active Active
- 2020-04-27 CN CN202310464712.8A patent/CN116389765B/zh active Active
- 2020-04-27 KR KR1020227015571A patent/KR20220063312A/ko active Application Filing
- 2020-04-27 CN CN202211456559.6A patent/CN115996290B/zh active Active
- 2020-04-27 CN CN202310856898.1A patent/CN116684637B/zh active Active
-
2021
- 2021-10-25 US US17/510,328 patent/US20220046249A1/en active Pending
-
2023
- 2023-04-21 JP JP2023069776A patent/JP2023089255A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN114885177A (zh) | 2022-08-09 |
| JP2022525688A (ja) | 2022-05-18 |
| CN115996290B (zh) | 2024-01-12 |
| JP2023089255A (ja) | 2023-06-27 |
| CN115499669A (zh) | 2022-12-20 |
| CN114125441B (zh) | 2022-09-20 |
| CN117014627A (zh) | 2023-11-07 |
| EP3942824A1 (en) | 2022-01-26 |
| CN116684637B (zh) | 2024-03-01 |
| US20220046249A1 (en) | 2022-02-10 |
| CN116389765B (zh) | 2024-01-30 |
| CN113728646A (zh) | 2021-11-30 |
| EP3942824A4 (en) | 2022-12-28 |
| CN116389765A (zh) | 2023-07-04 |
| CN116684637A (zh) | 2023-09-01 |
| CN114125441A (zh) | 2022-03-01 |
| CN114885177B (zh) | 2023-06-27 |
| CN117014627B (zh) | 2024-07-02 |
| KR20210131456A (ko) | 2021-11-02 |
| KR102399229B1 (ko) | 2022-05-17 |
| WO2020220048A1 (en) | 2020-10-29 |
| CN115996290A (zh) | 2023-04-21 |
| KR20220063312A (ko) | 2022-05-17 |
| JP7269371B2 (ja) | 2023-05-08 |
| CN115499669B (zh) | 2023-08-29 |
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