BR112019018922A8 - Método e aparelho de refinamento de movimento com base em fluxo óptico bi-direcional para codificação de vídeo - Google Patents
Método e aparelho de refinamento de movimento com base em fluxo óptico bi-direcional para codificação de vídeoInfo
- Publication number
- BR112019018922A8 BR112019018922A8 BR112019018922A BR112019018922A BR112019018922A8 BR 112019018922 A8 BR112019018922 A8 BR 112019018922A8 BR 112019018922 A BR112019018922 A BR 112019018922A BR 112019018922 A BR112019018922 A BR 112019018922A BR 112019018922 A8 BR112019018922 A8 BR 112019018922A8
- Authority
- BR
- Brazil
- Prior art keywords
- optical flow
- bio
- video coding
- bio process
- applying
- Prior art date
Links
- 230000003287 optical effect Effects 0.000 title abstract 2
- 230000002457 bidirectional effect Effects 0.000 abstract 2
- 230000001419 dependent effect Effects 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
- H04N19/50—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
- H04N19/50—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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
Método e aparelho de utilização de fluxo óptico bidirecional (BIO) para um bloco previsto bidirecional verdadeiro são revelados. De acordo com um método da presente invenção, é revelado um processo BIO sem divisão, onde o deslocamento de movimento x e o deslocamento de movimento y são derivados usando operações incluindo deslocamento à direita sem qualquer operação de divisão. De acordo com outro método, um preditor refinado é gerado para o bloco atual, aplicando o processo BIO aos blocos de referência, em que a aplicação do processo BIO compreende a aplicação de um processo BIO dependente de condição de contorno condicionalmente aos pixels de contorno associados aos blocos de referência.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201762472002P | 2017-03-16 | 2017-03-16 | |
| US201762474702P | 2017-03-22 | 2017-03-22 | |
| US201762480359P | 2017-04-01 | 2017-04-01 | |
| PCT/CN2018/077819 WO2018166357A1 (en) | 2017-03-16 | 2018-03-02 | Method and apparatus of motion refinement based on bi-directional optical flow for video coding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| BR112019018922A2 BR112019018922A2 (pt) | 2020-04-14 |
| BR112019018922A8 true BR112019018922A8 (pt) | 2023-02-07 |
Family
ID=63522790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR112019018922A BR112019018922A8 (pt) | 2017-03-16 | 2018-03-02 | Método e aparelho de refinamento de movimento com base em fluxo óptico bi-direcional para codificação de vídeo |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US11109062B2 (pt) |
| EP (1) | EP3586513A4 (pt) |
| CN (1) | CN110476424B (pt) |
| BR (1) | BR112019018922A8 (pt) |
| TW (1) | TWI663872B (pt) |
| WO (1) | WO2018166357A1 (pt) |
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| WO2019210829A1 (en) * | 2018-04-30 | 2019-11-07 | Mediatek Inc. | Signaling for illumination compensation |
| CN112272952B (zh) * | 2018-06-11 | 2022-07-01 | 寰发股份有限公司 | 用于视频编解码的双向光流的方法以及装置 |
| US11470348B2 (en) | 2018-08-17 | 2022-10-11 | Hfi Innovation Inc. | Methods and apparatuses of video processing with bi-direction prediction in video coding systems |
| CN112715030B (zh) | 2018-09-21 | 2024-04-23 | Vid拓展公司 | 用于双向光流的复杂度降低和位宽控制 |
| WO2020084476A1 (en) | 2018-10-22 | 2020-04-30 | Beijing Bytedance Network Technology Co., Ltd. | Sub-block based prediction |
| WO2020084474A1 (en) | 2018-10-22 | 2020-04-30 | Beijing Bytedance Network Technology Co., Ltd. | Gradient computation in bi-directional optical flow |
| US20220038681A1 (en) * | 2018-11-05 | 2022-02-03 | Interdigital Vc Holdings, Inc. | Video encoding or decoding using block extension for overlapped block motion compensation |
| KR20230158645A (ko) | 2018-11-05 | 2023-11-20 | 베이징 바이트댄스 네트워크 테크놀로지 컴퍼니, 리미티드 | 리파인먼트를 이용한 인터 예측을 위한 보간 |
| JP2022506162A (ja) | 2018-11-06 | 2022-01-17 | 北京字節跳動網絡技術有限公司 | 動き情報の位置依存記憶装置 |
| CN111436226A (zh) | 2018-11-12 | 2020-07-21 | 北京字节跳动网络技术有限公司 | 用于帧间预测的运动矢量存储 |
| KR20210091161A (ko) | 2018-11-20 | 2021-07-21 | 베이징 바이트댄스 네트워크 테크놀로지 컴퍼니, 리미티드 | 부분적 위치에 기반한 차분 계산 |
| CN113170171B (zh) * | 2018-11-20 | 2024-04-12 | 北京字节跳动网络技术有限公司 | 组合帧间帧内预测模式的预测细化 |
| CN113228637A (zh) * | 2018-12-17 | 2021-08-06 | 北京字节跳动网络技术有限公司 | 依赖于形状的插值滤波器 |
| EP3900343A1 (en) * | 2018-12-21 | 2021-10-27 | VID SCALE, Inc. | Symmetric motion vector difference coding |
| CN117221528B (zh) | 2019-01-06 | 2024-05-14 | 北京达佳互联信息技术有限公司 | 视频编码方法、计算设备和介质 |
| US11153590B2 (en) * | 2019-01-11 | 2021-10-19 | Tencent America LLC | Method and apparatus for video coding |
| WO2020177665A1 (en) * | 2019-03-05 | 2020-09-10 | Mediatek Inc. | Methods and apparatuses of video processing for bi-directional prediction with motion refinement in video coding systems |
| WO2020177755A1 (en) | 2019-03-06 | 2020-09-10 | Beijing Bytedance Network Technology Co., Ltd. | Usage of converted uni-prediction candidate |
| EP3915262A4 (en) | 2019-03-08 | 2022-08-03 | Huawei Technologies Co., Ltd. | ENCODER, DECODER AND RELATED METHODS FOR INTERPREDICTION |
| EP3918804A4 (en) | 2019-03-14 | 2023-02-08 | HFI Innovation Inc. | METHODS AND APPARATUS FOR VIDEO PROCESSING USING MOTION DECOMPOSITION AND SUB-PARTITION BASE FILLING |
| EP4376410A3 (en) * | 2019-03-19 | 2024-07-03 | Huawei Technologies Co., Ltd. | Optical flow based video inter prediction |
| CN113615197B (zh) * | 2019-03-26 | 2023-03-07 | 北京达佳互联信息技术有限公司 | 用于双向光流的比特深度控制的方法和设备 |
| CN113632480A (zh) * | 2019-03-29 | 2021-11-09 | 北京字节跳动网络技术有限公司 | 自适应环路滤波与其他编解码工具之间的交互 |
| KR20230169434A (ko) * | 2019-04-02 | 2023-12-15 | 베이징 바이트댄스 네트워크 테크놀로지 컴퍼니, 리미티드 | 디코더 측 움직임 벡터 유도 |
| JP7239732B2 (ja) | 2019-04-02 | 2023-03-14 | 北京字節跳動網絡技術有限公司 | 双方向オプティカルフローに基づく映像符号化及び復号化 |
| WO2020211865A1 (en) * | 2019-04-19 | 2020-10-22 | Beijing Bytedance Network Technology Co., Ltd. | Gradient calculation in different motion vector refinements |
| CN113711608B (zh) | 2019-04-19 | 2023-09-01 | 北京字节跳动网络技术有限公司 | 利用光流的预测细化过程的适用性 |
| CN113711609B (zh) | 2019-04-19 | 2023-12-01 | 北京字节跳动网络技术有限公司 | 利用光流的预测细化过程中的增量运动矢量 |
| CN115996290B (zh) * | 2019-04-25 | 2024-01-12 | 北京达佳互联信息技术有限公司 | 对视频信号解码的双向光流方法、计算设备和存储介质 |
| WO2020224613A1 (en) * | 2019-05-07 | 2020-11-12 | Beijing Bytedance Network Technology Co., Ltd. | Unified calculation method for inter prediction with refinement |
| CN110225339A (zh) * | 2019-05-10 | 2019-09-10 | 上海德衡数据科技有限公司 | 一种hevc视频序列编解码加速方法 |
| CN113812159B (zh) * | 2019-05-14 | 2024-06-21 | 北京字节跳动网络技术有限公司 | 视频编解码中的缩放方法 |
| US11089328B2 (en) | 2019-05-22 | 2021-08-10 | Qualcomm Incorporated | Bi-directional optical flow in video coding |
| EP3963883A4 (en) * | 2019-06-04 | 2023-06-14 | Beijing Bytedance Network Technology Co., Ltd. | GEOMETRIC PARTITION MODE CODING MOVEMENT CANDIDATES LIST |
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| 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 |
| JP2021052225A (ja) * | 2019-09-20 | 2021-04-01 | Kddi株式会社 | 画像復号装置、画像復号方法及びプログラム |
| WO2020251415A2 (en) * | 2019-09-30 | 2020-12-17 | Huawei Technologies Co., Ltd. | Interpolation filter for an inter prediction apparatus and method for video coding |
| CN110798630B (zh) * | 2019-10-30 | 2020-12-29 | 北京市商汤科技开发有限公司 | 图像处理方法及装置、电子设备和存储介质 |
| CN111131837B (zh) * | 2019-12-30 | 2022-10-04 | 浙江大华技术股份有限公司 | 运动补偿修正方法、编码方法、编码器及存储介质 |
| CN116647698A (zh) * | 2020-03-02 | 2023-08-25 | Oppo广东移动通信有限公司 | 图像预测方法、编码器、解码器以及存储介质 |
| CN111612697B (zh) * | 2020-05-22 | 2023-07-04 | 天津维创微智能科技有限公司 | 一种插值方法、装置、设备及存储介质 |
| CN115918080A (zh) | 2020-06-08 | 2023-04-04 | 抖音视界有限公司 | 视频编解码的仿射预测改进 |
| CN111970517B (zh) * | 2020-07-29 | 2023-07-28 | 浙江大华技术股份有限公司 | 基于双向光流的帧间预测方法、编码方法及相关装置 |
| WO2023141177A1 (en) * | 2022-01-18 | 2023-07-27 | Beijing Dajia Internet Information Technology Co., Ltd. | Motion compensation considering out-of-boundary conditions in video coding |
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| CN102934444A (zh) * | 2010-04-06 | 2013-02-13 | 三星电子株式会社 | 用于对视频进行编码的方法和设备以及用于对视频进行解码的方法和设备 |
| CN103618904B (zh) | 2013-11-20 | 2017-02-22 | 华为技术有限公司 | 基于像素的运动估计方法及装置 |
| WO2017036399A1 (en) * | 2015-09-02 | 2017-03-09 | Mediatek Inc. | Method and apparatus of motion compensation for video coding based on bi prediction optical flow techniques |
-
2018
- 2018-03-02 CN CN201880017432.XA patent/CN110476424B/zh active Active
- 2018-03-02 EP EP18766709.2A patent/EP3586513A4/en not_active Ceased
- 2018-03-02 BR BR112019018922A patent/BR112019018922A8/pt unknown
- 2018-03-02 US US16/494,565 patent/US11109062B2/en active Active
- 2018-03-02 WO PCT/CN2018/077819 patent/WO2018166357A1/en unknown
- 2018-03-15 TW TW107108842A patent/TWI663872B/zh active
Also Published As
| Publication number | Publication date |
|---|---|
| US20210127133A1 (en) | 2021-04-29 |
| BR112019018922A2 (pt) | 2020-04-14 |
| US11109062B2 (en) | 2021-08-31 |
| WO2018166357A1 (en) | 2018-09-20 |
| TW201840190A (zh) | 2018-11-01 |
| CN110476424B (zh) | 2022-03-04 |
| EP3586513A4 (en) | 2020-12-09 |
| CN110476424A (zh) | 2019-11-19 |
| EP3586513A1 (en) | 2020-01-01 |
| TWI663872B (zh) | 2019-06-21 |
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| B350 | Update of information on the portal [chapter 15.35 patent gazette] | ||
| B25A | Requested transfer of rights approved |
Owner name: HFI INNOVATION INC. (TW) |
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| B06W | Patent application suspended after preliminary examination (for patents with searches from other patent authorities) chapter 6.23 patent gazette] |