BR112021026327A2 - Método para calcular posição de amostra de referência de grade inteira para cálculo de gradiente de amostra de fronteira de nível de bloco em cálculo de fluxo óptico bipreditivo e correção bipreditiva - Google Patents
Método para calcular posição de amostra de referência de grade inteira para cálculo de gradiente de amostra de fronteira de nível de bloco em cálculo de fluxo óptico bipreditivo e correção bipreditivaInfo
- Publication number
- BR112021026327A2 BR112021026327A2 BR112021026327A BR112021026327A BR112021026327A2 BR 112021026327 A2 BR112021026327 A2 BR 112021026327A2 BR 112021026327 A BR112021026327 A BR 112021026327A BR 112021026327 A BR112021026327 A BR 112021026327A BR 112021026327 A2 BR112021026327 A2 BR 112021026327A2
- Authority
- BR
- Brazil
- Prior art keywords
- predictive
- calculation
- optical flow
- block
- sample
- Prior art date
Links
- 239000000523 sample Substances 0.000 title abstract 6
- 230000003287 optical effect Effects 0.000 title abstract 4
- 239000013074 reference sample Substances 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 3
- 230000002457 bidirectional effect Effects 0.000 abstract 2
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
- H04N19/10—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
- H04N19/50—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
- H04N19/132—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
- H04N19/157—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
- H04N19/50—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
- H04N19/50—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
- H04N19/523—Motion estimation or motion compensation with sub-pixel accuracy
-
- 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
-
- 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
- H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
- H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive coding
-
- 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
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
método para calcular posição de amostra de referência de grade inteira para cálculo de gradiente de amostra de fronteira de nível de bloco em cálculo de fluxo óptico bipreditivo e correção bipreditiva. um método para predição de fluxo óptico bidirecional com base em valores de amostra de referência a partir de posições de amostra pertencentes a uma região estendida de um bloco predito usado na predição de fluxo óptico bidirecional de um bloco atual é fornecido, em que posições de subpixel na região estendida do bloco predito na imagem de referência são arredondadas para obter posições de amostra de pixel inteiro na imagem de referência, em que os valores de amostra de referência nas posições de amostra de pixel inteiro obtidas na imagem de referência são usados no cálculo de gradientes de amostra de fronteira correspondentes às fronteiras do bloco predito na imagem de referência.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IN201931025013 | 2019-06-24 | ||
PCT/CN2020/097762 WO2020259507A1 (en) | 2019-06-24 | 2020-06-23 | Method for computing position of integer grid reference sample for block level boundary sample gradient computation in bi-predictive optical flow computation and bi-predictive correction |
Publications (1)
Publication Number | Publication Date |
---|---|
BR112021026327A2 true BR112021026327A2 (pt) | 2022-03-03 |
Family
ID=74060440
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR112021026327A BR112021026327A2 (pt) | 2019-06-24 | 2020-06-23 | Método para calcular posição de amostra de referência de grade inteira para cálculo de gradiente de amostra de fronteira de nível de bloco em cálculo de fluxo óptico bipreditivo e correção bipreditiva |
Country Status (10)
Country | Link |
---|---|
US (1) | US20220116624A1 (pt) |
EP (1) | EP3981156A4 (pt) |
JP (2) | JP7384939B2 (pt) |
KR (2) | KR20240056654A (pt) |
CN (1) | CN114009041A (pt) |
AU (1) | AU2020308351A1 (pt) |
BR (1) | BR112021026327A2 (pt) |
CA (1) | CA3144797A1 (pt) |
MX (1) | MX2022000141A (pt) |
WO (1) | WO2020259507A1 (pt) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3991432A1 (en) * | 2019-07-01 | 2022-05-04 | InterDigital VC Holdings France, SAS | Bi-directional optical flow refinement of affine motion compensation |
CN115272423B (zh) * | 2022-09-19 | 2022-12-16 | 深圳比特微电子科技有限公司 | 一种训练光流估计模型的方法、装置和可读存储介质 |
CN117834583A (zh) * | 2023-12-08 | 2024-04-05 | 南京智数科技有限公司 | 一种公辅车间的继电保护管理***及方法 |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6661427B1 (en) * | 1998-11-09 | 2003-12-09 | Broadcom Corporation | Graphics display system with video scaler |
JP4114885B2 (ja) * | 2005-10-31 | 2008-07-09 | 松下電器産業株式会社 | 画像符号化装置、方法、及びプログラム |
WO2007091213A2 (en) * | 2006-02-10 | 2007-08-16 | Koninklijke Philips Electronics N.V. | Video processor comprising a motion estimator of the recursive type |
JP2010161747A (ja) * | 2009-01-09 | 2010-07-22 | Toshiba Corp | サブピクセル生成装置及び方法並びに動き補償装置 |
US9106910B2 (en) * | 2009-06-23 | 2015-08-11 | Orange | Method of coding and decoding images, corresponding device for coding and decoding and computer program |
US8811473B2 (en) * | 2009-07-07 | 2014-08-19 | Panasonic Corporation | Moving picture decoding device, moving picture decoding method, moving picture decoding system, integrated circuit, and program |
WO2011121716A1 (ja) * | 2010-03-30 | 2011-10-06 | 株式会社 東芝 | 動画像符号化方法、復号化方法、符号化装置および復号化装置 |
JP5579937B2 (ja) * | 2010-10-06 | 2014-08-27 | インテル コーポレイション | 低複雑度の動きベクトルを導出するシステム及び方法 |
US9143799B2 (en) * | 2011-05-27 | 2015-09-22 | Cisco Technology, Inc. | Method, apparatus and computer program product for image motion prediction |
US10536701B2 (en) * | 2011-07-01 | 2020-01-14 | Qualcomm Incorporated | Video coding using adaptive motion vector resolution |
US9325991B2 (en) * | 2012-04-11 | 2016-04-26 | Qualcomm Incorporated | Motion vector rounding |
US9998726B2 (en) * | 2012-06-20 | 2018-06-12 | Nokia Technologies Oy | Apparatus, a method and a computer program for video coding and decoding |
TWI496453B (zh) * | 2012-10-05 | 2015-08-11 | Zhangjiagang Kangde Xin Optronics Material Co Ltd | A method of displaying a three - dimensional image in both directions |
CN105338352B (zh) * | 2014-07-24 | 2019-04-19 | 华为技术有限公司 | 一种视频编码中自适应反量化方法及装置 |
EP3262836B1 (en) * | 2015-03-02 | 2020-07-29 | HFI Innovation Inc. | Method and apparatus for intrabc mode with fractional-pel block vector resolution in video coding |
US11153600B2 (en) * | 2016-02-08 | 2021-10-19 | Sharp Kabushiki Kaisha | Motion vector generation device, prediction image generation device, video decoding device, and video coding device |
US11095893B2 (en) * | 2016-10-12 | 2021-08-17 | Qualcomm Incorporated | Primary transform and secondary transform in video coding |
US10523964B2 (en) * | 2017-03-13 | 2019-12-31 | Qualcomm Incorporated | Inter prediction refinement based on bi-directional optical flow (BIO) |
US10659788B2 (en) * | 2017-11-20 | 2020-05-19 | Google Llc | Block-based optical flow estimation for motion compensated prediction in video coding |
CN116744017A (zh) * | 2017-08-29 | 2023-09-12 | Sk电信有限公司 | 视频编码装置、视频解码装置和存储比特流的方法 |
US10728573B2 (en) * | 2017-09-08 | 2020-07-28 | Qualcomm Incorporated | Motion compensated boundary pixel padding |
US10841794B2 (en) * | 2017-09-18 | 2020-11-17 | Futurewei Technologies, Inc. | Adaptive motion vector resolution |
KR102595689B1 (ko) * | 2017-09-29 | 2023-10-30 | 인텔렉추얼디스커버리 주식회사 | 영상 부호화/복호화 방법, 장치 및 비트스트림을 저장한 기록 매체 |
US11736713B2 (en) * | 2018-11-14 | 2023-08-22 | Tencent America LLC | Constraint on affine model motion vector |
-
2020
- 2020-06-23 CN CN202080045664.3A patent/CN114009041A/zh active Pending
- 2020-06-23 JP JP2021576697A patent/JP7384939B2/ja active Active
- 2020-06-23 WO PCT/CN2020/097762 patent/WO2020259507A1/en unknown
- 2020-06-23 KR KR1020247013014A patent/KR20240056654A/ko active Application Filing
- 2020-06-23 KR KR1020227002313A patent/KR102660120B1/ko active IP Right Grant
- 2020-06-23 BR BR112021026327A patent/BR112021026327A2/pt unknown
- 2020-06-23 AU AU2020308351A patent/AU2020308351A1/en active Pending
- 2020-06-23 MX MX2022000141A patent/MX2022000141A/es unknown
- 2020-06-23 CA CA3144797A patent/CA3144797A1/en active Pending
- 2020-06-23 EP EP20830554.0A patent/EP3981156A4/en active Pending
-
2021
- 2021-12-22 US US17/645,608 patent/US20220116624A1/en active Pending
-
2023
- 2023-11-08 JP JP2023190926A patent/JP2024009038A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
CN114009041A (zh) | 2022-02-01 |
KR102660120B1 (ko) | 2024-04-22 |
JP2024009038A (ja) | 2024-01-19 |
CA3144797A1 (en) | 2020-12-30 |
WO2020259507A1 (en) | 2020-12-30 |
EP3981156A4 (en) | 2023-02-01 |
WO2020259507A8 (en) | 2021-02-25 |
KR20240056654A (ko) | 2024-04-30 |
KR20220024877A (ko) | 2022-03-03 |
JP7384939B2 (ja) | 2023-11-21 |
EP3981156A1 (en) | 2022-04-13 |
MX2022000141A (es) | 2022-04-27 |
AU2020308351A1 (en) | 2022-02-03 |
JP2022540771A (ja) | 2022-09-20 |
US20220116624A1 (en) | 2022-04-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BR112021026327A2 (pt) | Método para calcular posição de amostra de referência de grade inteira para cálculo de gradiente de amostra de fronteira de nível de bloco em cálculo de fluxo óptico bipreditivo e correção bipreditiva | |
GB2500351A (en) | Determining an optimal computing environment for running an image | |
BR112018006072A2 (pt) | redução de ruído de foco automático de detecção de fase | |
BR112016015080A2 (pt) | Predição de vetor de bloco em codificação / decodificação de vídeo e imagem | |
BR112019002042A2 (pt) | ajuste dinâmico de fusão | |
BR112017019264A2 (pt) | método de previsão de imagens e dispositivo relacionado | |
BR112018003653A2 (pt) | método e dispositivo para predição de imagem | |
MX2019003549A (es) | Metodo y aparato para codificacion y decodificacion de imagenes a traves de inter-prediccion. | |
BR112021016896A2 (pt) | Codificador, decodificador e métodos correspondentes para predição inter | |
BR112016018814A8 (pt) | dispositivo de computação, método em dispositivo de computação com decodificador de vídeo ou decodificador de imagem e meio legível por computador | |
BR112016021485A2 (pt) | Pesquisa de encriptador com base em hash para cópia intrabloco | |
BR112016014226A2 (pt) | Sistemas, métodos e aparelho para codificar formações de objeto | |
MX354306B (es) | Metodo y aparato para determinar imagenes de referencia para inter-prediccion. | |
BR112014004376A2 (pt) | sistema para detecção automática da área ocupada da estrutura a partir de imagens oblíquas | |
UA114314C2 (uk) | Обмеження однонаправленим інтерпрогнозуванням для блоків прогнозування у в-слайсах | |
BR112015000367A2 (pt) | método e dispositivo de comutação de imagem | |
BR112018002224A8 (pt) | conversor de quadro de vídeo 2d para 3d | |
BR112015012539A2 (pt) | dispositivo de exibição e método de controle do mesmo | |
BR112016020957A8 (pt) | criar uma cor realística para um objeto virtual em um ambiente de realidade aumentada | |
JP2018124780A5 (pt) | ||
BR112015030546A2 (pt) | rede de dispositivos para a realização de testes ópticos/optométricos/ oftalmológicos e método para o controle e gerenciamento de uma rede de dispositivos | |
BR112021019595A2 (pt) | Método, mídia legível por processador e aparelho | |
FR3021736B1 (fr) | Systeme de prediction visuel de carburant | |
JP2016003475A5 (pt) | ||
BR112017006062A2 (pt) | métodos de alto desempenho de análise de caroço de algodão usando imagiologia de raios x |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
B154 | Notification of filing of divisional application [chapter 15.50 patent gazette] |
Free format text: O PEDIDO FOI DIVIDIDO NO BR122023012709-9 PROTOCOLO 870230054297 EM 23/06/2023 15:14. |