MX2021008157A - Control del ancho de bits para el flujo optico bidireccional. - Google Patents
Control del ancho de bits para el flujo optico bidireccional.Info
- Publication number
- MX2021008157A MX2021008157A MX2021008157A MX2021008157A MX2021008157A MX 2021008157 A MX2021008157 A MX 2021008157A MX 2021008157 A MX2021008157 A MX 2021008157A MX 2021008157 A MX2021008157 A MX 2021008157A MX 2021008157 A MX2021008157 A MX 2021008157A
- Authority
- MX
- Mexico
- Prior art keywords
- reference picture
- prediction
- optical flow
- directional optical
- bit
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title abstract 2
- 238000003079 width control Methods 0.000 title 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
- H04N19/105—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
- H04N19/50—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
-
- 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
- H04N19/169—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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
Un método para controlar el ancho de bits para el flujo óptico bidireccional (BDOF) para la codificación de video incluye decodificar una primera imagen de referencia y una segunda imagen de referencia, la segunda imagen de referencia es diferente a la primera imagen de referencia, en donde la primera imagen de referencia se visualiza antes de una imagen actual y la segunda imagen de referencia se visualiza después de la imagen actual. Un refinamiento de movimiento de una unidad de codificación (CU) se calcula al minimizar una diferencia entre la primera predicción L0 y la segunda predicción L1. Se calculan los primeros valores de gradiente para la primera predicción L0 y segundos valores de gradiente para la segunda predicción L1. Se calcula una bi-predicción final de la CU. También se da a conocer un aparato asociado y un medio de almacenamiento no transitorio y legible por computadora asociado.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201962788898P | 2019-01-06 | 2019-01-06 | |
| PCT/US2020/012338 WO2020142762A1 (en) | 2019-01-06 | 2020-01-06 | Bit-width control for bi-directional optical flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| MX2021008157A true MX2021008157A (es) | 2022-07-19 |
Family
ID=71406635
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX2021008157A MX2021008157A (es) | 2019-01-06 | 2020-01-06 | Control del ancho de bits para el flujo optico bidireccional. |
| MX2022008296A MX2022008296A (es) | 2019-01-06 | 2021-07-02 | Control del ancho de bits para el flujo optico bidireccional. |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX2022008296A MX2022008296A (es) | 2019-01-06 | 2021-07-02 | Control del ancho de bits para el flujo optico bidireccional. |
Country Status (7)
| Country | Link |
|---|---|
| US (4) | US11388436B2 (es) |
| EP (1) | EP3891990A4 (es) |
| JP (2) | JP7474262B2 (es) |
| KR (2) | KR20220025301A (es) |
| CN (5) | CN113261296A (es) |
| MX (2) | MX2021008157A (es) |
| WO (1) | WO2020142762A1 (es) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020084476A1 (en) | 2018-10-22 | 2020-04-30 | Beijing Bytedance Network Technology Co., Ltd. | Sub-block based prediction |
| WO2020084475A1 (en) | 2018-10-22 | 2020-04-30 | Beijing Bytedance Network Technology Co., Ltd. | Utilization of refined motion vector |
| WO2020098647A1 (en) | 2018-11-12 | 2020-05-22 | Beijing Bytedance Network Technology Co., Ltd. | Bandwidth control methods for affine prediction |
| WO2020103870A1 (en) | 2018-11-20 | 2020-05-28 | Beijing Bytedance Network Technology Co., Ltd. | Inter prediction with refinement in video processing |
| KR20210091161A (ko) | 2018-11-20 | 2021-07-21 | 베이징 바이트댄스 네트워크 테크놀로지 컴퍼니, 리미티드 | 부분적 위치에 기반한 차분 계산 |
| CN113261296A (zh) * | 2019-01-06 | 2021-08-13 | 北京达佳互联信息技术有限公司 | 双向光流的比特宽度控制 |
| WO2020177755A1 (en) | 2019-03-06 | 2020-09-10 | Beijing Bytedance Network Technology Co., Ltd. | Usage of converted uni-prediction candidate |
| KR20220112864A (ko) | 2019-03-15 | 2022-08-11 | 베이징 다지아 인터넷 인포메이션 테크놀로지 컴퍼니 리미티드 | 양방향 광 흐름을 위한 비트-폭 제어를 위한 방법 및 디바이스 |
| KR20230169434A (ko) * | 2019-04-02 | 2023-12-15 | 베이징 바이트댄스 네트워크 테크놀로지 컴퍼니, 리미티드 | 디코더 측 움직임 벡터 유도 |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10412387B2 (en) * | 2014-08-22 | 2019-09-10 | Qualcomm Incorporated | Unified intra-block copy and inter-prediction |
| US10178403B2 (en) * | 2015-06-23 | 2019-01-08 | Qualcomm Incorporated | Reference picture list construction in intra block copy mode |
| EP3332551A4 (en) * | 2015-09-02 | 2019-01-16 | MediaTek Inc. | METHOD AND APPARATUS FOR MOVEMENT COMPENSATION FOR VIDEO CODING BASED ON TECHNIQUES FOR OPERATIONAL RADIO RADIATION |
| US10375413B2 (en) * | 2015-09-28 | 2019-08-06 | Qualcomm Incorporated | Bi-directional optical flow for video coding |
| CN114793279A (zh) * | 2016-02-03 | 2022-07-26 | Oppo广东移动通信有限公司 | 运动图像解码装置、编码装置、以及预测图像生成装置 |
| WO2017138417A1 (ja) | 2016-02-08 | 2017-08-17 | シャープ株式会社 | 動きベクトル生成装置、予測画像生成装置、動画像復号装置、および動画像符号化装置。 |
| WO2017188566A1 (ko) | 2016-04-25 | 2017-11-02 | 엘지전자 주식회사 | 영상 코딩 시스템에서 인터 예측 방법 및 장치 |
| MX2018014493A (es) * | 2016-05-25 | 2019-08-12 | Arris Entpr Llc | Particionamiento binario, ternario, cuaternario para jvet. |
| US10728572B2 (en) * | 2016-09-11 | 2020-07-28 | Lg Electronics Inc. | Method and apparatus for processing video signal by using improved optical flow motion vector |
| WO2018084339A1 (ko) * | 2016-11-04 | 2018-05-11 | 엘지전자(주) | 인터 예측 모드 기반 영상 처리 방법 및 이를 위한 장치 |
| BR112019012582A8 (pt) | 2016-12-22 | 2023-02-07 | Mediatek Inc | Método e aparelho de refinamento de movimento para codificação de vídeo |
| BR112019018922A8 (pt) * | 2017-03-16 | 2023-02-07 | Mediatek Inc | Método e aparelho de refinamento de movimento com base em fluxo óptico bi-direcional para codificação de vídeo |
| CN117395394A (zh) * | 2017-03-22 | 2024-01-12 | 韩国电子通信研究院 | 使用参考块的预测方法和装置 |
| KR102409430B1 (ko) | 2017-04-24 | 2022-06-15 | 에스케이텔레콤 주식회사 | 움직임 보상을 위한 옵티컬 플로우 추정 방법 및 장치 |
| WO2018230493A1 (ja) * | 2017-06-14 | 2018-12-20 | シャープ株式会社 | 動画像復号装置、動画像符号化装置、予測画像生成装置及び動きベクトル導出装置 |
| KR102580910B1 (ko) * | 2017-08-29 | 2023-09-20 | 에스케이텔레콤 주식회사 | 양방향 옵티컬 플로우를 이용한 움직임 보상 방법 및 장치 |
| US10785494B2 (en) * | 2017-10-11 | 2020-09-22 | Qualcomm Incorporated | Low-complexity design for FRUC |
| CN117579826A (zh) | 2018-01-09 | 2024-02-20 | 夏普株式会社 | 运动矢量推导装置、运动图像解码装置以及运动图像编码装置 |
| US11310526B2 (en) * | 2018-01-26 | 2022-04-19 | Mediatek Inc. | Hardware friendly constrained motion vector refinement |
| CN113261296A (zh) * | 2019-01-06 | 2021-08-13 | 北京达佳互联信息技术有限公司 | 双向光流的比特宽度控制 |
| CN114175659A (zh) * | 2019-06-25 | 2022-03-11 | 北京达佳互联信息技术有限公司 | 用于双向光流的比特宽度控制的装置和方法 |
-
2020
- 2020-01-06 CN CN202080008094.0A patent/CN113261296A/zh active Pending
- 2020-01-06 WO PCT/US2020/012338 patent/WO2020142762A1/en unknown
- 2020-01-06 CN CN202310875061.1A patent/CN116708772B/zh active Active
- 2020-01-06 CN CN202110985012.4A patent/CN113613019B/zh active Active
- 2020-01-06 MX MX2021008157A patent/MX2021008157A/es unknown
- 2020-01-06 JP JP2021539434A patent/JP7474262B2/ja active Active
- 2020-01-06 KR KR1020227005801A patent/KR20220025301A/ko active Application Filing
- 2020-01-06 EP EP20736085.0A patent/EP3891990A4/en active Pending
- 2020-01-06 KR KR1020217020929A patent/KR102374687B1/ko active IP Right Grant
- 2020-01-06 CN CN202310792031.4A patent/CN116668717B/zh active Active
- 2020-01-06 CN CN202311209752.4A patent/CN117221528B/zh active Active
-
2021
- 2021-07-02 MX MX2022008296A patent/MX2022008296A/es unknown
- 2021-07-06 US US17/368,468 patent/US11388436B2/en active Active
-
2022
- 2022-04-21 US US17/726,523 patent/US11743493B2/en active Active
- 2022-12-16 JP JP2022201624A patent/JP2023030062A/ja active Pending
-
2023
- 2023-07-06 US US18/219,089 patent/US20230353780A1/en active Pending
- 2023-08-28 US US18/239,122 patent/US20230403408A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP3891990A4 (en) | 2022-06-15 |
| US20210344952A1 (en) | 2021-11-04 |
| MX2022008296A (es) | 2022-08-08 |
| KR102374687B1 (ko) | 2022-03-14 |
| JP2023030062A (ja) | 2023-03-07 |
| US11743493B2 (en) | 2023-08-29 |
| CN116668717A (zh) | 2023-08-29 |
| CN116668717B (zh) | 2024-03-15 |
| US20220248050A1 (en) | 2022-08-04 |
| EP3891990A1 (en) | 2021-10-13 |
| CN116708772A (zh) | 2023-09-05 |
| CN113613019B (zh) | 2022-06-07 |
| CN117221528B (zh) | 2024-05-14 |
| KR20220025301A (ko) | 2022-03-03 |
| US20230403408A1 (en) | 2023-12-14 |
| US20230353780A1 (en) | 2023-11-02 |
| WO2020142762A1 (en) | 2020-07-09 |
| CN113261296A (zh) | 2021-08-13 |
| KR20210088013A (ko) | 2021-07-13 |
| US11388436B2 (en) | 2022-07-12 |
| JP2022516751A (ja) | 2022-03-02 |
| CN113613019A (zh) | 2021-11-05 |
| CN116708772B (zh) | 2024-01-23 |
| JP7474262B2 (ja) | 2024-04-24 |
| CN117221528A (zh) | 2023-12-12 |
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