CO2021015352A2 - Refinamiento de predicción basada en gradientes para codificación de video - Google Patents
Refinamiento de predicción basada en gradientes para codificación de videoInfo
- Publication number
- CO2021015352A2 CO2021015352A2 CONC2021/0015352A CO2021015352A CO2021015352A2 CO 2021015352 A2 CO2021015352 A2 CO 2021015352A2 CO 2021015352 A CO2021015352 A CO 2021015352A CO 2021015352 A2 CO2021015352 A2 CO 2021015352A2
- Authority
- CO
- Colombia
- Prior art keywords
- gradient
- prediction
- refinement
- based prediction
- video encoder
- Prior art date
Links
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
- H04N19/513—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
- H04N19/523—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
- H04N19/527—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
Esta divulgación describe el refinamiento de la predicción basada en gradientes. Un codificador de video (por ejemplo, codificador de video o decodificador de video) determina uno o más bloques de predicción para interpredecir un bloque actual (por ejemplo, basado en uno o más vectores de movimiento para el bloque actual). En el refinamiento de la predicción basada en gradientes, el codificador de video modifica una o más muestras del bloque de predicción en función de varios factores, como el desplazamiento en una dirección horizontal, el gradiente horizontal, un desplazamiento en la dirección vertical y un gradiente vertical. Esta divulgación proporciona un refinamiento de la predicción basada en gradientes donde un nivel de precisión del desplazamiento (por ejemplo, al menos uno de los desplazamientos horizontal o vertical) se unifica (por ejemplo, el mismo) para diferentes modos de predicción (por ejemplo, incluyendo un modo afín y un modo bidireccional de flujo óptico (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 |
---|---|
CO2021015352A2 true CO2021015352A2 (es) | 2021-11-19 |
Family
ID=73230856
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CONC2021/0015352A CO2021015352A2 (es) | 2019-05-17 | 2021-11-16 | Refinamiento de predicción basada en gradientes para codificación de video |
Country Status (13)
Country | Link |
---|---|
US (1) | US11317088B2 (es) |
EP (1) | EP3970370A1 (es) |
JP (1) | JP2022533061A (es) |
KR (1) | KR20220009384A (es) |
CN (1) | CN113950839A (es) |
BR (1) | BR112021022331A2 (es) |
CA (1) | CA3137462A1 (es) |
CO (1) | CO2021015352A2 (es) |
IL (1) | IL287257B1 (es) |
MX (1) | MX2021014018A (es) |
SG (1) | SG11202111550WA (es) |
TW (1) | TW202101996A (es) |
WO (1) | WO2020236568A1 (es) |
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 |
KR20220061240A (ko) | 2019-09-20 | 2022-05-12 | 텔레호낙티에볼라게트 엘엠 에릭슨(피유비엘) | 시프트 동작들에 대한 양방향 광학 흐름 단순화를 이용한 비디오 인코딩 및/또는 디코딩 방법들 및 관련 장치 |
US20220337865A1 (en) * | 2019-09-23 | 2022-10-20 | Sony Group Corporation | Image processing device and image processing method |
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 |
---|---|---|---|---|
CN108541375B (zh) * | 2016-02-03 | 2022-04-12 | 夏普株式会社 | 运动图像解码装置、运动图像编码装置、以及预测图像生成装置 |
EP3453178A1 (en) * | 2016-05-06 | 2019-03-13 | VID SCALE, Inc. | Systems and methods for motion compensated residual prediction |
US10277895B2 (en) * | 2016-12-28 | 2019-04-30 | 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 |
RU2763042C2 (ru) * | 2017-07-03 | 2021-12-27 | Вид Скейл, Инк. | Прогнозирование компенсации движения на основе двунаправленного оптического потока |
CA3070507A1 (en) * | 2017-07-24 | 2019-01-31 | Arris Enterprises Llc | Intra mode jvet coding |
JP2021520710A (ja) * | 2018-04-06 | 2021-08-19 | ヴィド スケール インコーポレイテッド | 簡易化された勾配導出による双方向オプティカルフロー方法 |
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 KR KR1020217036507A patent/KR20220009384A/ko unknown
- 2020-05-15 CA CA3137462A patent/CA3137462A1/en active Pending
- 2020-05-15 WO PCT/US2020/033091 patent/WO2020236568A1/en active Application Filing
- 2020-05-15 BR BR112021022331A patent/BR112021022331A2/pt unknown
- 2020-05-15 JP JP2021566995A patent/JP2022533061A/ja active Pending
- 2020-05-15 EP EP20730522.8A patent/EP3970370A1/en active Pending
- 2020-05-15 TW TW109116300A patent/TW202101996A/zh unknown
- 2020-05-15 CN CN202080034608.XA patent/CN113950839A/zh active Pending
- 2020-05-15 IL IL287257A patent/IL287257B1/en unknown
- 2020-05-15 SG SG11202111550WA patent/SG11202111550WA/en unknown
- 2020-05-15 MX MX2021014018A patent/MX2021014018A/es unknown
-
2021
- 2021-11-16 CO CONC2021/0015352A patent/CO2021015352A2/es unknown
Also Published As
Publication number | Publication date |
---|---|
SG11202111550WA (en) | 2021-12-30 |
EP3970370A1 (en) | 2022-03-23 |
US20200366889A1 (en) | 2020-11-19 |
JP2022533061A (ja) | 2022-07-21 |
BR112021022331A2 (pt) | 2021-12-28 |
IL287257A (en) | 2021-12-01 |
CA3137462A1 (en) | 2020-11-26 |
US11317088B2 (en) | 2022-04-26 |
TW202101996A (zh) | 2021-01-01 |
MX2021014018A (es) | 2021-12-10 |
WO2020236568A1 (en) | 2020-11-26 |
IL287257B1 (en) | 2024-04-01 |
KR20220009384A (ko) | 2022-01-24 |
CN113950839A (zh) | 2022-01-18 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CO2021015352A2 (es) | Refinamiento de predicción basada en gradientes para codificación de video | |
BR112018077227A2 (pt) | codificação de vídeo com refinamento de informações de movimento adaptativas | |
BR112021018810A2 (pt) | Refinamento de predição baseado em gradiente para codificação de vídeo | |
CL2019003677A1 (es) | Predicción de vectores de movimiento. | |
CL2021000476A1 (es) | Predicción de movimiento afín | |
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. | |
MX2019003549A (es) | Metodo y aparato para codificacion y decodificacion de imagenes a traves de inter-prediccion. | |
MX2020003973A (es) | Candidatos de predictor mejorados para compensacion de movimiento. | |
MX2020011278A (es) | Metodo de codificacion de imagen de video, metodo de decodificacion de imagen de video, dispositivo de codificacion, y dispositivo de decodificacion. | |
CO2019007120A2 (es) | Reconstrucciones de vectores de movimiento para flujo óptico bidireccional (bio) | |
CL2020002525A1 (es) | Combinación de intra predicción que depende de la posición extendida con modos angulares | |
MX2021003135A (es) | Metodo de codificacion y decodificacion de informacion de movimiento, y aparatos para codificar y decodificar informacion de movimiento. | |
NI201600136A (es) | Codificación de transformación inversa de espacio de color universal | |
BR112021022559A2 (pt) | Codificação de modo de fusão para codificação de vídeo | |
BR112017010468A8 (pt) | Método de codificação de vídeo de bi-predição com base em vetores de movimento a partir de candidato de fusão e uni-predição | |
CO2017001556A2 (es) | Copia intrabloque e inter-predicción unificadas | |
BR112014006185A2 (pt) | determinação de vetor de movimento para codificação de vídeo | |
BR112017024275A2 (pt) | determinação de região de busca para inter-codificação dentro de imagem específica de dados de vídeo | |
BR112016015080A2 (pt) | Predição de vetor de bloco em codificação / decodificação de vídeo e imagem | |
BR112014006843A2 (pt) | codificação de imagens de referência codificação para um conjunto de imagens de referência | |
EP3145188A3 (en) | Inter prediction encoding method | |
DK3700216T3 (da) | Billeddekodning, baseret på affin bevægelses-forudsigelse under anvendelse af affin MVP-kandidatliste | |
BR112021020933A2 (pt) | Codificador, decodificador e métodos correspondentes usando lista de fusão de ibc | |
PH12021551031A1 (en) | Method for encoding/decoding image signal and device therefor | |
BR112021018644A2 (pt) | Método e aparelho para refinamento de predição com fluxo óptico para um bloco codificado afim |