BR112021022331A2 - Refinamento de predição baseado em gradiente para codificação de vídeo - Google Patents
Refinamento de predição baseado em gradiente para codificação de vídeoInfo
- Publication number
- BR112021022331A2 BR112021022331A2 BR112021022331A BR112021022331A BR112021022331A2 BR 112021022331 A2 BR112021022331 A2 BR 112021022331A2 BR 112021022331 A BR112021022331 A BR 112021022331A BR 112021022331 A BR112021022331 A BR 112021022331A BR 112021022331 A2 BR112021022331 A2 BR 112021022331A2
- Authority
- BR
- Brazil
- Prior art keywords
- gradient
- prediction
- based prediction
- prediction refinement
- refinement
- Prior art date
Links
- 238000006073 displacement reaction Methods 0.000 abstract 2
- PXFBZOLANLWPMH-UHFFFAOYSA-N 16-Epiaffinine Natural products C1C(C2=CC=CC=C2N2)=C2C(=O)CC2C(=CC)CN(C)C1C2CO PXFBZOLANLWPMH-UHFFFAOYSA-N 0.000 abstract 1
- 230000002457 bidirectional effect Effects 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 abstract 1
- 239000013598 vector Substances 0.000 abstract 1
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
- H04N19/102—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
-
- 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
- H04N19/513—Processing of 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
- H04N19/10—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
- H04N19/136—Incoming video signal characteristics or properties
-
- 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
- H04N19/14—Coding unit complexity, e.g. amount of activity or edge presence 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
- H04N19/10—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
-
- 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
- H04N19/577—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
- H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
- H04N19/96—Tree coding, e.g. quad-tree coding
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
refinamento de predição baseado em gradiente para codificação de vídeo. a presente revelação descreve refinamento de predição baseado em gradiente. um codificador de vídeo (por exemplo, codificador de vídeo ou decodificador de vídeo) determina um ou mais blocos de predição para interprever um bloco atual (por exemplo, baseado em um ou mais vetores de movimento para o bloco atual). em refinamento de predição baseado em gradiente, o codificador de vídeo modifica uma ou mais amostras do bloco de predição com base em vários fatores como deslocamento em uma direção horizontal, o gradiente horizontal, um deslocamento na direção vertical e um gradiente vertical. a presente revelação provê refinamento de predição baseado em gradiente onde um nível de precisão do deslocamento (por exemplo, pelo menos um do deslocamento horizontal ou vertical) é unificado (por exemplo, o mesmo) para modos de predição diferentes (por exemplo, incluindo um modo afim e um modo de fluxo ótico bidirecional (bdof)).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201962849352P | 2019-05-17 | 2019-05-17 | |
US16/874,057 US11317088B2 (en) | 2019-05-17 | 2020-05-14 | Gradient-based prediction refinement for video coding |
PCT/US2020/033091 WO2020236568A1 (en) | 2019-05-17 | 2020-05-15 | Gradient-based prediction refinement for video coding |
Publications (1)
Publication Number | Publication Date |
---|---|
BR112021022331A2 true BR112021022331A2 (pt) | 2021-12-28 |
Family
ID=73230856
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR112021022331A BR112021022331A2 (pt) | 2019-05-17 | 2020-05-15 | Refinamento de predição baseado em gradiente para codificação de vídeo |
Country Status (13)
Country | Link |
---|---|
US (1) | US11317088B2 (pt) |
EP (1) | EP3970370A1 (pt) |
JP (1) | JP2022533061A (pt) |
KR (1) | KR20220009384A (pt) |
CN (1) | CN113950839A (pt) |
BR (1) | BR112021022331A2 (pt) |
CA (1) | CA3137462A1 (pt) |
CO (1) | CO2021015352A2 (pt) |
IL (1) | IL287257B1 (pt) |
MX (1) | MX2021014018A (pt) |
SG (1) | SG11202111550WA (pt) |
TW (1) | TW202101996A (pt) |
WO (1) | WO2020236568A1 (pt) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10609423B2 (en) | 2016-09-07 | 2020-03-31 | Qualcomm Incorporated | Tree-type coding for video coding |
US11962796B2 (en) | 2019-04-01 | 2024-04-16 | Qualcomm Incorporated | Gradient-based prediction refinement for video coding |
WO2021054886A1 (en) * | 2019-09-20 | 2021-03-25 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods of video encoding and/or decoding with bidirectional optical flow simplification on shift operations and related apparatus |
WO2021060262A1 (ja) * | 2019-09-23 | 2021-04-01 | ソニー株式会社 | 画像処理装置および画像処理方法 |
WO2024083992A1 (en) * | 2022-10-21 | 2024-04-25 | Interdigital Ce Patent Holdings, Sas | Low complexity motion refinement |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
CN109121465B (zh) * | 2016-05-06 | 2023-06-06 | 交互数字麦迪逊专利控股公司 | 用于运动补偿残差预测的系统和方法 |
WO2018125972A1 (en) * | 2016-12-28 | 2018-07-05 | Arris Enterprises Llc | Adaptive unequal weight planar prediction |
JP7036628B2 (ja) * | 2017-03-10 | 2022-03-15 | パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカ | 符号化装置、復号装置、符号化方法及び復号方法 |
US10477237B2 (en) * | 2017-06-28 | 2019-11-12 | Futurewei Technologies, Inc. | Decoder side motion vector refinement in video coding |
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 |
EP3643065A1 (en) * | 2017-07-24 | 2020-04-29 | ARRIS Enterprises LLC | Intra mode jvet coding |
CN112166608A (zh) * | 2018-04-06 | 2021-01-01 | Vid拓展公司 | 采用简化梯度推导的双向光流方法 |
US10986343B2 (en) * | 2018-04-15 | 2021-04-20 | Arris Enterprises Llc | Reducing overhead for multiple-hypothesis temporal prediction |
-
2020
- 2020-05-14 US US16/874,057 patent/US11317088B2/en active Active
- 2020-05-15 EP EP20730522.8A patent/EP3970370A1/en active Pending
- 2020-05-15 KR KR1020217036507A patent/KR20220009384A/ko unknown
- 2020-05-15 CA CA3137462A patent/CA3137462A1/en active Pending
- 2020-05-15 CN CN202080034608.XA patent/CN113950839A/zh active Pending
- 2020-05-15 IL IL287257A patent/IL287257B1/en unknown
- 2020-05-15 MX MX2021014018A patent/MX2021014018A/es unknown
- 2020-05-15 BR BR112021022331A patent/BR112021022331A2/pt unknown
- 2020-05-15 SG SG11202111550WA patent/SG11202111550WA/en unknown
- 2020-05-15 WO PCT/US2020/033091 patent/WO2020236568A1/en active Application Filing
- 2020-05-15 JP JP2021566995A patent/JP2022533061A/ja active Pending
- 2020-05-15 TW TW109116300A patent/TW202101996A/zh unknown
-
2021
- 2021-11-16 CO CONC2021/0015352A patent/CO2021015352A2/es unknown
Also Published As
Publication number | Publication date |
---|---|
CN113950839A (zh) | 2022-01-18 |
IL287257B1 (en) | 2024-04-01 |
KR20220009384A (ko) | 2022-01-24 |
CA3137462A1 (en) | 2020-11-26 |
US20200366889A1 (en) | 2020-11-19 |
IL287257A (en) | 2021-12-01 |
WO2020236568A1 (en) | 2020-11-26 |
SG11202111550WA (en) | 2021-12-30 |
EP3970370A1 (en) | 2022-03-23 |
JP2022533061A (ja) | 2022-07-21 |
TW202101996A (zh) | 2021-01-01 |
MX2021014018A (es) | 2021-12-10 |
CO2021015352A2 (es) | 2021-11-19 |
US11317088B2 (en) | 2022-04-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BR112021022331A2 (pt) | Refinamento de predição baseado em gradiente para codificação de vídeo | |
BR112021018810A2 (pt) | Refinamento de predição baseado em gradiente para codificação de vídeo | |
BR112018077227A2 (pt) | codificação de vídeo com refinamento de informações de movimento adaptativas | |
BR112014006185A2 (pt) | determinação de vetor de movimento para codificação de vídeo | |
BR112018003653A2 (pt) | método e dispositivo para predição de imagem | |
BR112019005678A2 (pt) | método e aparelho para codificação e decodificação de imagem através de interprevisão | |
BR112019006756A2 (pt) | precisão de vetor de movimento adaptativo para codificação de vídeo | |
MX2020010193A (es) | Dispositivo de codificacion de video y dispositivo de descodificacion de video que usa la codificacion de salto de alta precision y metodo del mismo. | |
BR112021017777A2 (pt) | Método e dispositivos de codificação e decodificação, dispositivos do lado de codificação e dispositivos do lado de decodificação | |
BR112014008097A2 (pt) | remoção de clipping de candidato a previsor de vetor de movimento para codificação de vídeo | |
BR112022013032A2 (pt) | Codificador, decodificador e métodos e aparelho correspondentes | |
MY196321A (en) | Methods for Quantitating Individual Antibodies From a Mixture | |
CO2017001556A2 (es) | Copia intrabloque e inter-predicción unificadas | |
BR112014013977A2 (pt) | dispositivo codificador de vídeo, método codificador de vídeo e programa codificador de vídeo, dispositivo decodificador de vídeo, método decodificador de vídeo e programa decodificador de vídeo | |
MX361225B (es) | Predicción de copia intrabloque con particiones asimétricas y patrones de búsqueda de codificador lateral, rangos de búsqueda y enfoques para partición. | |
MX2020003973A (es) | Candidatos de predictor mejorados para compensacion de movimiento. | |
PH12015502805A1 (en) | Intra prediction from a predictive block using displacement vectors | |
BR112014016922A8 (pt) | dispositivo de codificação de imagem em movimento, método de codificação de imagem em movimento, programa de codificação de imagem em movimento, dispositivo de decodificação de imagem em movimento, método de decodificação de imagem em movimento e programa de decodificação de imagem em movimento | |
BR112016012417A2 (pt) | método e aparelho para inicialização e gerenciamento de paleta | |
BR112018001519A2 (pt) | métodos e sistemas de restrição de biprevisão em codificação de vídeo | |
BR112015026131A2 (pt) | método de codificação de um sinal de dados de vídeo para uso em um dispositivo de renderização de múltiplas vistas, sinal de dados de vídeo para uso em um dispositivo de renderização de múltiplas vistas, portadora de dados, método de decodificação de um sinal de dados de vídeo, decodificador para decodificar um sinal de dados de vídeo, produto de programa de computador, e, codificador de um sinal de dados de vídeo para uso em um dispositivo de renderização de múltiplas vistas | |
BR112013002448A2 (pt) | método de codificação de imagem, método de decodificação de imagem, aparelho de codificação de imagem, aparelho de decodificação de imagem, e aparelho de codificação e decodificação de imagem. | |
BR112015025322A2 (pt) | método e aparelho para codificar e decodificar uma imagem com predição de informação de movimento inter-camada de acordo com esquema de compressão de informação de movimento | |
WO2014165651A3 (en) | Advanced merge mode for three-dimensional (3d) video coding | |
BR112013024187A2 (pt) | modo de fusão bi-preditivo com base em vizinhos uni-preditivos em codificação de vídeo |