BR112021018810A2 - Refinamento de predição baseado em gradiente para codificação de vídeo - Google Patents
Refinamento de predição baseado em gradiente para codificação de vídeoInfo
- Publication number
- BR112021018810A2 BR112021018810A2 BR112021018810A BR112021018810A BR112021018810A2 BR 112021018810 A2 BR112021018810 A2 BR 112021018810A2 BR 112021018810 A BR112021018810 A BR 112021018810A BR 112021018810 A BR112021018810 A BR 112021018810A BR 112021018810 A2 BR112021018810 A2 BR 112021018810A2
- 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
- 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
- H04N19/50—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
- H04N19/537—Motion estimation other than block-based
- H04N19/543—Motion estimation other than block-based using regions
-
- 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
- H04N19/132—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
- H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
- H04N19/43—Hardware specially adapted for motion estimation or compensation
-
- 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
- H04N19/70—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201962827677P | 2019-04-01 | 2019-04-01 | |
| US201962837405P | 2019-04-23 | 2019-04-23 | |
| US16/836,013 US11962796B2 (en) | 2019-04-01 | 2020-03-31 | Gradient-based prediction refinement for video coding |
| PCT/US2020/026126 WO2020205942A1 (en) | 2019-04-01 | 2020-04-01 | Gradient-based prediction refinement for video coding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR112021018810A2 true BR112021018810A2 (pt) | 2021-11-23 |
Family
ID=72605235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR112021018810A BR112021018810A2 (pt) | 2019-04-01 | 2020-04-01 | Refinamento de predição baseado em gradiente para codificação de vídeo |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US11962796B2 (https=) |
| EP (1) | EP3949413A1 (https=) |
| JP (1) | JP7463399B2 (https=) |
| KR (1) | KR102951570B1 (https=) |
| CN (1) | CN113940079B (https=) |
| BR (1) | BR112021018810A2 (https=) |
| SG (1) | SG11202109472RA (https=) |
| TW (1) | TWI856085B (https=) |
| WO (1) | WO2020205942A1 (https=) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20230165888A (ko) * | 2019-04-02 | 2023-12-05 | 베이징 바이트댄스 네트워크 테크놀로지 컴퍼니, 리미티드 | 양방향 광학 흐름 기반 비디오 코딩 및 디코딩 |
| 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 |
| WO2020211867A1 (en) * | 2019-04-19 | 2020-10-22 | Beijing Bytedance Network Technology Co., Ltd. | Delta motion vector in prediction refinement with optical flow process |
| CN118540470A (zh) | 2019-04-19 | 2024-08-23 | 北京字节跳动网络技术有限公司 | 不同运动矢量细化中的基于区域的梯度计算 |
| US11523109B2 (en) | 2019-05-02 | 2022-12-06 | Tencent America LLC | Method and apparatus for improvements of affine prof |
| CN113728644B (zh) * | 2019-05-16 | 2024-01-26 | 北京字节跳动网络技术有限公司 | 基于子区域的运动信息细化确定 |
| US11317088B2 (en) * | 2019-05-17 | 2022-04-26 | Qualcomm Incorporated | Gradient-based prediction refinement for video coding |
| CN114503557B (zh) * | 2019-09-22 | 2025-09-16 | 寰发股份有限公司 | 视频数据预测方法和装置 |
| WO2023020590A1 (en) * | 2021-08-19 | 2023-02-23 | Mediatek Inc. | Method and apparatus for hardware-friendly template matching in video coding system |
| KR20230055191A (ko) | 2021-10-18 | 2023-04-25 | 현대모비스 주식회사 | 내가수분해성 및 레이저 투과 안정성이 우수한 수지 성형품, 이를 포함하는 카메라 모듈 부재 및 자동차 전장 부품 부재 |
| WO2025148982A1 (en) * | 2024-01-09 | 2025-07-17 | Douyin Vision Co., Ltd. | Method, apparatus, and medium for video processing |
Family Cites Families (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9325991B2 (en) * | 2012-04-11 | 2016-04-26 | Qualcomm Incorporated | Motion vector rounding |
| JP6462693B2 (ja) * | 2013-12-13 | 2019-01-30 | クゥアルコム・インコーポレイテッドＱｕａｌｃｏｍｍ Ｉｎｃｏｒｐｏｒａｔｅｄ | ３ｄビデオコーディングにおける深度イントラ予測モードおよび深度インター予測モードのための簡易深度コーディング（ｓｄｃ）のシグナリング |
| 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 |
| CN115278229B (zh) | 2015-11-11 | 2024-12-10 | 三星电子株式会社 | 对视频进行解码的设备和对视频进行编码的设备 |
| EP4661401A3 (en) * | 2016-02-03 | 2026-02-25 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Moving image decoding device, moving image coding device, and prediction image generation device |
| EP3453178A1 (en) * | 2016-05-06 | 2019-03-13 | VID SCALE, Inc. | Systems and methods for motion compensated residual prediction |
| US10560712B2 (en) * | 2016-05-16 | 2020-02-11 | Qualcomm Incorporated | Affine motion prediction for video coding |
| WO2018125972A1 (en) * | 2016-12-28 | 2018-07-05 | Arris Enterprises Llc | Adaptive unequal weight planar prediction |
| US10701366B2 (en) | 2017-02-21 | 2020-06-30 | Qualcomm Incorporated | Deriving motion vector information at a video decoder |
| 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 |
| US10904565B2 (en) * | 2017-06-23 | 2021-01-26 | Qualcomm Incorporated | Memory-bandwidth-efficient design for bi-directional optical flow (BIO) |
| US10477237B2 (en) * | 2017-06-28 | 2019-11-12 | Futurewei Technologies, Inc. | Decoder side motion vector refinement in video coding |
| EP3649780B1 (en) * | 2017-07-03 | 2025-06-25 | InterDigital VC Holdings, Inc. | Motion-compensation prediction based on bi-directional optical flow |
| CN115174911B (zh) * | 2017-07-24 | 2025-06-20 | 艾锐势有限责任公司 | 帧内模式jvet编译方法 |
| 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 |
| US11317088B2 (en) | 2019-05-17 | 2022-04-26 | Qualcomm Incorporated | Gradient-based prediction refinement for video coding |
-
2020
- 2020-03-31 US US16/836,013 patent/US11962796B2/en active Active
- 2020-04-01 KR KR1020217030567A patent/KR102951570B1/ko active Active
- 2020-04-01 EP EP20722051.8A patent/EP3949413A1/en active Pending
- 2020-04-01 CN CN202080023997.6A patent/CN113940079B/zh active Active
- 2020-04-01 BR BR112021018810A patent/BR112021018810A2/pt unknown
- 2020-04-01 WO PCT/US2020/026126 patent/WO2020205942A1/en not_active Ceased
- 2020-04-01 SG SG11202109472R patent/SG11202109472RA/en unknown
- 2020-04-01 JP JP2021557957A patent/JP7463399B2/ja active Active
- 2020-04-01 TW TW109111388A patent/TWI856085B/zh active
Also Published As
| Publication number | Publication date |
|---|---|
| SG11202109472RA (en) | 2021-10-28 |
| WO2020205942A1 (en) | 2020-10-08 |
| JP7463399B2 (ja) | 2024-04-08 |
| KR102951570B1 (ko) | 2026-04-10 |
| CN113940079A (zh) | 2022-01-14 |
| CN113940079B (zh) | 2025-06-17 |
| KR20210138613A (ko) | 2021-11-19 |
| TWI856085B (zh) | 2024-09-21 |
| TW202046721A (zh) | 2020-12-16 |
| JP2022527194A (ja) | 2022-05-31 |
| EP3949413A1 (en) | 2022-02-09 |
| US11962796B2 (en) | 2024-04-16 |
| US20200314443A1 (en) | 2020-10-01 |
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