CO2021007877A2 - Método y dispositivo de decodificación de video, y método y dispositivo de codificación de video - Google Patents
Método y dispositivo de decodificación de video, y método y dispositivo de codificación de videoInfo
- Publication number
- CO2021007877A2 CO2021007877A2 CONC2021/0007877A CO2021007877A CO2021007877A2 CO 2021007877 A2 CO2021007877 A2 CO 2021007877A2 CO 2021007877 A CO2021007877 A CO 2021007877A CO 2021007877 A2 CO2021007877 A2 CO 2021007877A2
- Authority
- CO
- Colombia
- Prior art keywords
- sub
- luma
- block
- blocks
- motion vector
- 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
- H04N19/50—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
- H04N19/527—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
- H04N19/10—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
- H04N19/10—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
- H04N19/12—Selection from among a plurality of transforms or standards, e.g. selection between discrete cosine transform [DCT] and sub-band transform or selection between H.263 and H.264
- H04N19/122—Selection of transform size, e.g. 8x8 or 2x4x8 DCT; Selection of sub-band transforms of varying structure or type
-
- 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
-
- 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
- H04N19/10—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
- H04N19/186—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 a colour or a chrominance component
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Discrete Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
Un método y un dispositivo de decodificación de video para determinar si un modo de predicción de un bloque actual es el modo afín; y cuando el modo de predicción del bloque actual es el modo afín, dividir un bloque de luma del bloque actual en una pluralidad de sub-bloques de luma con una forma cuadrada en función un tamaño de sub-bloque predefinido; determinar un vector de movimiento de luma promedio para cuatro sub-bloques de luma vecinos entre la pluralidad de sub-bloques de luma utilizando un vector de movimiento de un sub-bloque de luma superior izquierdo de los cuatro sub- bloques de luma, y un vector de movimiento de un sub-bloque de luma inferior derecho de los cuatro sub-bloques de luma; determinar que el vector de movimiento de luma promedio es un vector de movimiento de un sub-bloque de croma actual correspondiente a los cuatro sub-bloques de luma; y realizar la predicción del sub-bloque de croma actual utilizando el vector de movimiento determinado en un proceso de codificación y decodificación de video.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201862776589P | 2018-12-07 | 2018-12-07 | |
US201862783653P | 2018-12-21 | 2018-12-21 | |
PCT/KR2019/017231 WO2020117010A1 (ko) | 2018-12-07 | 2019-12-06 | 비디오 복호화 방법 및 장치, 비디오 부호화 방법 및 장치 |
Publications (1)
Publication Number | Publication Date |
---|---|
CO2021007877A2 true CO2021007877A2 (es) | 2021-06-21 |
Family
ID=70975167
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CONC2021/0007877A CO2021007877A2 (es) | 2018-12-07 | 2021-06-16 | Método y dispositivo de decodificación de video, y método y dispositivo de codificación de video |
Country Status (8)
Country | Link |
---|---|
US (2) | US11425416B2 (es) |
EP (1) | EP3893509A4 (es) |
KR (1) | KR20210072118A (es) |
CN (1) | CN113170189A (es) |
BR (1) | BR112021010706A2 (es) |
CL (1) | CL2021001465A1 (es) |
CO (1) | CO2021007877A2 (es) |
WO (1) | WO2020117010A1 (es) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3744094A4 (en) * | 2018-01-26 | 2021-11-03 | MediaTek Inc. | METHOD AND DEVICE FOR AFFINE INTER-PREDICTION FOR A VIDEO ENCODING SYSTEM |
CN112788345B (zh) * | 2019-11-11 | 2023-10-24 | 腾讯美国有限责任公司 | 视频数据解码方法、装置、计算机设备和存储介质 |
WO2023220970A1 (zh) * | 2022-05-18 | 2023-11-23 | Oppo广东移动通信有限公司 | 视频编码方法、装置、设备、系统、及存储介质 |
WO2024074134A1 (en) * | 2022-10-04 | 2024-04-11 | Mediatek Inc. | Affine motion based prediction in video coding |
Family Cites Families (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101452859B1 (ko) * | 2009-08-13 | 2014-10-23 | 삼성전자주식회사 | 움직임 벡터를 부호화 및 복호화하는 방법 및 장치 |
WO2016008157A1 (en) * | 2014-07-18 | 2016-01-21 | Mediatek Singapore Pte. Ltd. | Methods for motion compensation using high order motion model |
US10412387B2 (en) | 2014-08-22 | 2019-09-10 | Qualcomm Incorporated | Unified intra-block copy and inter-prediction |
GB2561507B (en) * | 2016-01-07 | 2021-12-22 | Mediatek Inc | Method and apparatus for affine merge mode prediction for video coding system |
US10567759B2 (en) * | 2016-03-21 | 2020-02-18 | Qualcomm Incorporated | Using luma information for chroma prediction with separate luma-chroma framework in video coding |
KR102584349B1 (ko) * | 2016-03-28 | 2023-10-04 | 로즈데일 다이나믹스 엘엘씨 | 인터 예측 모드 기반 영상 처리 방법 및 이를 위한 장치 |
US20190273943A1 (en) * | 2016-10-10 | 2019-09-05 | Sharp Kabushiki Kaisha | Systems and methods for performing motion compensation for coding of video data |
US10798375B2 (en) * | 2016-11-01 | 2020-10-06 | Samsung Electronics Co., Ltd. | Encoding method and device therefor, and decoding method and device therefor |
WO2018097590A1 (ko) | 2016-11-22 | 2018-05-31 | 한국전자통신연구원 | 영상 부호화/복호화 방법, 장치 및 비트스트림을 저장한 기록 매체 |
US10681370B2 (en) | 2016-12-29 | 2020-06-09 | Qualcomm Incorporated | Motion vector generation for affine motion model for video coding |
WO2018128380A1 (ko) * | 2017-01-03 | 2018-07-12 | 엘지전자(주) | 어파인 예측을 이용하여 비디오 신호를 처리하는 방법 및 장치 |
KR102243215B1 (ko) | 2017-03-28 | 2021-04-22 | 삼성전자주식회사 | 비디오 부호화 방법 및 장치, 비디오 복호화 방법 및 장치 |
KR102206084B1 (ko) | 2017-07-07 | 2021-01-21 | 삼성전자주식회사 | 적응적 움직임 벡터 해상도로 결정된 움직임 벡터의 부호화 장치 및 부호화 방법, 및 움직임 벡터의 복호화 장치 및 복호화 방법 |
KR102317094B1 (ko) | 2017-09-28 | 2021-10-25 | 삼성전자주식회사 | 부호화 방법 및 그 장치, 복호화 방법 및 그 장치 |
TWI729422B (zh) * | 2018-06-21 | 2021-06-01 | 大陸商北京字節跳動網絡技術有限公司 | 色彩分量間的子區塊移動向量繼承 |
CA3105339A1 (en) | 2018-06-30 | 2020-01-02 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Merge mode-based inter-prediction method and apparatus |
CN112703731A (zh) | 2018-07-27 | 2021-04-23 | 三星电子株式会社 | 基于子块对图像进行编码的方法和装置以及对图像进行解码的方法和装置 |
KR20200028856A (ko) | 2018-09-07 | 2020-03-17 | 김기백 | 인트라 예측을 이용한 영상 부호화/복호화 방법 및 장치 |
EP3855746A4 (en) | 2018-09-20 | 2022-11-09 | Samsung Electronics Co., Ltd. | VIDEO DECODING METHOD AND APPARATUS, AND VIDEO ENCODING METHOD AND APPARATUS |
US11595639B2 (en) * | 2018-09-21 | 2023-02-28 | Lg Electronics Inc. | Method and apparatus for processing video signals using affine prediction |
IL304953A (en) | 2018-09-21 | 2023-10-01 | Guangdong Oppo Mobile Telecommunications Corp Ltd | A method of encoding/decoding image signals and a device therefor |
GB2591906B (en) | 2018-09-24 | 2023-03-08 | Beijing Bytedance Network Tech Co Ltd | Bi-prediction with weights in video coding and decoding |
WO2020076047A1 (ko) | 2018-10-09 | 2020-04-16 | 삼성전자 주식회사 | 비디오 복호화 방법 및 장치, 비디오 부호화 방법 및 장치 |
WO2020073969A1 (en) * | 2018-10-10 | 2020-04-16 | Huawei Technologies Co., Ltd. | An image processing device and method for performing deblocking |
CN116248870A (zh) * | 2018-11-08 | 2023-06-09 | Oppo广东移动通信有限公司 | 视频信号编码/解码方法以及用于所述方法的设备 |
KR20200081328A (ko) * | 2018-12-27 | 2020-07-07 | 인텔렉추얼디스커버리 주식회사 | 영상 부/복호화 방법 및 장치 |
-
2019
- 2019-12-06 BR BR112021010706A patent/BR112021010706A2/pt unknown
- 2019-12-06 CN CN201980081018.XA patent/CN113170189A/zh active Pending
- 2019-12-06 US US17/311,209 patent/US11425416B2/en active Active
- 2019-12-06 EP EP19893600.7A patent/EP3893509A4/en active Pending
- 2019-12-06 KR KR1020217016799A patent/KR20210072118A/ko not_active Application Discontinuation
- 2019-12-06 WO PCT/KR2019/017231 patent/WO2020117010A1/ko unknown
-
2021
- 2021-06-03 CL CL2021001465A patent/CL2021001465A1/es unknown
- 2021-06-16 CO CONC2021/0007877A patent/CO2021007877A2/es unknown
-
2022
- 2022-07-08 US US17/860,515 patent/US11943469B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN113170189A (zh) | 2021-07-23 |
WO2020117010A1 (ko) | 2020-06-11 |
CL2021001465A1 (es) | 2021-11-12 |
US20210377560A1 (en) | 2021-12-02 |
US11425416B2 (en) | 2022-08-23 |
EP3893509A1 (en) | 2021-10-13 |
BR112021010706A2 (pt) | 2021-11-30 |
US20220353526A1 (en) | 2022-11-03 |
US11943469B2 (en) | 2024-03-26 |
KR20210072118A (ko) | 2021-06-16 |
EP3893509A4 (en) | 2022-10-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CO2021007877A2 (es) | Método y dispositivo de decodificación de video, y método y dispositivo de codificación de video | |
DK3909244T3 (da) | Underbilledidentifikatorsignalering i videokodning | |
HRP20192232T1 (hr) | POSTUPAK I UREĐAJ ZA INTRAMODALNO KODIRANJE U HEVC-u | |
CO2018009869A2 (es) | Determinación de parámetros de predicción para bloques no cuadrados en codificación de video | |
CL2023001948A1 (es) | Método y dispositivo de codificación/decodificación de video a base de intra predicción | |
PH12017501440A1 (en) | Deriving motion informatioin for sub-blocks in video coding | |
WO2015152608A3 (ko) | 서브블록 기반 예측을 수행하는 인터 레이어 비디오 복호화 방법 및 그 장치 및 서브블록 기반 예측을 수행하는 인터 레이어 비디오 부호화 방법 및 그 장치 | |
GB2574733A (en) | Improved video bitstream coding | |
PH12017500702A1 (en) | An apparatus, a method and a computer program for image sequence coding and decoding | |
BR112018077227A2 (pt) | codificação de vídeo com refinamento de informações de movimento adaptativas | |
ES2951543T3 (es) | Método y dispositivo de codificación | |
JP2016540400A5 (ja) | 復号方法及び符号化方法 | |
JP2015216656A5 (es) | ||
EP2858368A3 (en) | Method of fast encoder decision in 3D video coding | |
EP4270950A3 (en) | Encoding apparatus and decoding apparatus | |
JP2015019420A5 (es) | ||
JP2015029335A5 (es) | ||
ES2450643R1 (es) | Procedimiento y aparato para intra-predicción en pantalla | |
MY181411A (en) | Video encoding method and device involving intra prediction, and video decoding method and device | |
TWI571832B (zh) | 編解碼方法 | |
MX2020005865A (es) | Metodo para decodificar imagenes con base en la prediccion cclm en el sistema de codificacion de imagenes y dispositivo para el mismo. | |
MX2020002586A (es) | Metodo y dispositivo de codificacion, y metodo y dispositivo de decodificacion. | |
MX2019014443A (es) | Un metodo y un dispositivo para codificacion y decodificacion de imagenes. | |
MX2020004137A (es) | Metodo y aparato para la compensacion de iluminacion adaptativa en codificacion y decodificacion de video. | |
RU2016125782A (ru) | Способ и устройство для определения информации движения между позициями по времени в подблоке предсказания |