JP7311589B2 - 双方向オプティカルフローのための複雑性低減およびビット幅制御 - Google Patents
双方向オプティカルフローのための複雑性低減およびビット幅制御 Download PDFInfo
- Publication number
- JP7311589B2 JP7311589B2 JP2021515221A JP2021515221A JP7311589B2 JP 7311589 B2 JP7311589 B2 JP 7311589B2 JP 2021515221 A JP2021515221 A JP 2021515221A JP 2021515221 A JP2021515221 A JP 2021515221A JP 7311589 B2 JP7311589 B2 JP 7311589B2
- Authority
- JP
- Japan
- Prior art keywords
- array
- calculating
- component
- parameter
- motion refinement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000003287 optical effect Effects 0.000 title claims description 101
- 230000002457 bidirectional effect Effects 0.000 title claims description 58
- 230000009467 reduction Effects 0.000 title description 9
- 238000000034 method Methods 0.000 claims description 122
- 238000003491 array Methods 0.000 claims description 8
- 239000000523 sample Substances 0.000 description 56
- 238000004891 communication Methods 0.000 description 40
- 238000007792 addition Methods 0.000 description 24
- 230000008569 process Effects 0.000 description 21
- 230000002123 temporal effect Effects 0.000 description 14
- 238000009795 derivation Methods 0.000 description 13
- 238000012360 testing method Methods 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 12
- 238000013461 design Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 11
- 230000006870 function Effects 0.000 description 11
- 238000000638 solvent extraction Methods 0.000 description 11
- 239000013598 vector Substances 0.000 description 10
- 238000005192 partition Methods 0.000 description 8
- 230000005540 biological transmission Effects 0.000 description 7
- 238000004458 analytical method Methods 0.000 description 5
- 230000001413 cellular effect Effects 0.000 description 5
- 239000010410 layer Substances 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- PXFBZOLANLWPMH-UHFFFAOYSA-N 16-Epiaffinine Natural products C1C(C2=CC=CC=C2N2)=C2C(=O)CC2C(=CC)CN(C)C1C2CO PXFBZOLANLWPMH-UHFFFAOYSA-N 0.000 description 3
- 241000760358 Enodes Species 0.000 description 3
- 230000002146 bilateral effect Effects 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 238000012935 Averaging Methods 0.000 description 2
- 208000037170 Delayed Emergence from Anesthesia Diseases 0.000 description 2
- 241000700159 Rattus Species 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 229910001416 lithium ion Inorganic materials 0.000 description 2
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000013139 quantization Methods 0.000 description 2
- 239000013074 reference sample Substances 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 238000003079 width control Methods 0.000 description 2
- 230000005355 Hall effect Effects 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000003190 augmentative effect Effects 0.000 description 1
- 229960000106 biosimilars Drugs 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000005055 memory storage Effects 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 230000000153 supplemental effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
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
- H04N19/10—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
- 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
- H04N19/146—Data rate or code amount at the encoder output
-
- 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
- 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
- H04N19/513—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
- H04N19/577—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
- H04N19/563—Motion estimation with padding, i.e. with filling of non-object values in an arbitrarily shaped picture block or region for estimation purposes
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2023111403A JP7553659B2 (ja) | 2018-09-21 | 2023-07-06 | 双方向オプティカルフローのための複雑性低減およびビット幅制御 |
| JP2024153291A JP7744485B2 (ja) | 2018-09-21 | 2024-09-05 | 双方向オプティカルフローのための複雑性低減およびビット幅制御 |
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201862734763P | 2018-09-21 | 2018-09-21 | |
| US62/734,763 | 2018-09-21 | ||
| US201862738655P | 2018-09-28 | 2018-09-28 | |
| US62/738,655 | 2018-09-28 | ||
| US201962789331P | 2019-01-07 | 2019-01-07 | |
| US62/789,331 | 2019-01-07 | ||
| PCT/US2019/051560 WO2020061082A1 (en) | 2018-09-21 | 2019-09-17 | Complexity reduction and bit-width control for bi-directional optical flow |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2023111403A Division JP7553659B2 (ja) | 2018-09-21 | 2023-07-06 | 双方向オプティカルフローのための複雑性低減およびビット幅制御 |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| JP2022501906A JP2022501906A (ja) | 2022-01-06 |
| JPWO2020061082A5 JPWO2020061082A5 (https=) | 2022-04-18 |
| JP2022501906A5 JP2022501906A5 (https=) | 2022-04-18 |
| JP7311589B2 true JP7311589B2 (ja) | 2023-07-19 |
Family
ID=68104762
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2021515221A Active JP7311589B2 (ja) | 2018-09-21 | 2019-09-17 | 双方向オプティカルフローのための複雑性低減およびビット幅制御 |
| JP2023111403A Active JP7553659B2 (ja) | 2018-09-21 | 2023-07-06 | 双方向オプティカルフローのための複雑性低減およびビット幅制御 |
| JP2024153291A Active JP7744485B2 (ja) | 2018-09-21 | 2024-09-05 | 双方向オプティカルフローのための複雑性低減およびビット幅制御 |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2023111403A Active JP7553659B2 (ja) | 2018-09-21 | 2023-07-06 | 双方向オプティカルフローのための複雑性低減およびビット幅制御 |
| JP2024153291A Active JP7744485B2 (ja) | 2018-09-21 | 2024-09-05 | 双方向オプティカルフローのための複雑性低減およびビット幅制御 |
Country Status (8)
| Country | Link |
|---|---|
| US (5) | US11470308B2 (https=) |
| EP (1) | EP3854089A1 (https=) |
| JP (3) | JP7311589B2 (https=) |
| KR (2) | KR102708989B1 (https=) |
| CN (2) | CN112715030B (https=) |
| IL (1) | IL281581B2 (https=) |
| TW (3) | TW202516922A (https=) |
| WO (1) | WO2020061082A1 (https=) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2024166257A (ja) * | 2018-09-21 | 2024-11-28 | ヴィド スケール インコーポレイテッド | 双方向オプティカルフローのための複雑性低減およびビット幅制御 |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112913240B (zh) * | 2018-10-22 | 2024-08-06 | 北京字节跳动网络技术有限公司 | 解码器侧运动矢量推导和其他编解码工具之间的并置 |
| CN117880513A (zh) | 2018-10-22 | 2024-04-12 | 北京字节跳动网络技术有限公司 | 基于编解码信息的解码器侧运动矢量推导的限制 |
| CN118694931B (zh) | 2018-11-05 | 2025-12-02 | 北京字节跳动网络技术有限公司 | 编解码视频数据的方法、装置及计算机可读存储介质 |
| CN119922305A (zh) | 2018-12-21 | 2025-05-02 | 韩国电子通信研究院 | 图像编码/解码方法和装置以及存储比特流的记录介质 |
| MX2021008389A (es) * | 2019-01-09 | 2023-01-27 | Beijing Dajia Internet Information Tech Co Ltd | Sistema y metodo para mejorar la inter e intraprediccion combinada. |
| JP7303255B2 (ja) * | 2019-01-09 | 2023-07-04 | ベイジン ダジア インターネット インフォメーション テクノロジー カンパニー リミテッド | ビデオコーディングの方法、ビデオコーディングデバイス、コンピュータ可読記憶媒体およびコンピュータプログラム |
| JP7232345B2 (ja) * | 2019-02-08 | 2023-03-02 | ベイジン・ダジア・インターネット・インフォメーション・テクノロジー・カンパニー，リミテッド | ビデオ符号化のための双方向オプティカルフローおよびデコーダ側動きベクトル補正を選択的に適用する方法およびデバイス |
| CN118573852A (zh) * | 2019-03-11 | 2024-08-30 | 松下电器（美国）知识产权公司 | 编码装置、解码装置、编码方法、解码方法和非暂时性存储介质 |
| KR102850505B1 (ko) * | 2019-03-15 | 2025-08-25 | 베이징 다지아 인터넷 인포메이션 테크놀로지 컴퍼니 리미티드 | 양방향 광 흐름을 위한 비트-폭 제어를 위한 방법 및 디바이스 |
| GB2585039A (en) * | 2019-06-25 | 2020-12-30 | Sony Corp | Image data encoding and decoding |
| US11736720B2 (en) * | 2019-09-03 | 2023-08-22 | Tencent America LLC | Motion vector refinement methods for video encoding |
| WO2021054886A1 (en) * | 2019-09-20 | 2021-03-25 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods of video encoding and/or decoding with bidirectional optical flow simplification on shift operations and related apparatus |
| CN121173953A (zh) * | 2019-12-30 | 2025-12-19 | Oppo广东移动通信有限公司 | 帧间预测方法、编码器、解码器及存储介质 |
| CN114079784A (zh) * | 2020-08-20 | 2022-02-22 | Oppo广东移动通信有限公司 | 帧间预测方法、编码器、解码器以及计算机存储介质 |
| EP4723623A1 (en) * | 2024-10-03 | 2026-04-08 | InterDigital CE Patent Holdings, SAS | Rate-distortion optimization with motion information |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011129084A1 (ja) | 2010-04-12 | 2011-10-20 | パナソニック株式会社 | 空間予測方法、画像復号方法、および画像符号化方法 |
| WO2018166357A1 (en) | 2017-03-16 | 2018-09-20 | Mediatek Inc. | Method and apparatus of motion refinement based on bi-directional optical flow for video coding |
Family Cites Families (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2991878B2 (ja) * | 1992-11-27 | 1999-12-20 | 三菱電機株式会社 | オプティカルフロー演算回路 |
| JPH06168239A (ja) | 1992-11-27 | 1994-06-14 | Toshiba Corp | 文書作成装置 |
| US9172972B2 (en) | 2011-01-05 | 2015-10-27 | Qualcomm Incorporated | Low complexity interpolation filtering with adaptive tap size |
| WO2016200984A1 (en) * | 2015-06-08 | 2016-12-15 | Vid Scale, Inc. | Intra block copy mode for screen content coding |
| US20180242004A1 (en) | 2015-08-23 | 2018-08-23 | Lg Electronics Inc. | Inter prediction mode-based image processing method and apparatus therefor |
| US10341659B2 (en) * | 2016-10-05 | 2019-07-02 | Qualcomm Incorporated | Systems and methods of switching interpolation filters |
| US10986367B2 (en) * | 2016-11-04 | 2021-04-20 | Lg Electronics Inc. | Inter prediction mode-based image processing method and apparatus therefor |
| US10965955B2 (en) * | 2016-12-22 | 2021-03-30 | Mediatek Inc. | Method and apparatus of motion refinement for video coding |
| US10931969B2 (en) * | 2017-01-04 | 2021-02-23 | Qualcomm Incorporated | Motion vector reconstructions for bi-directional optical flow (BIO) |
| US10701366B2 (en) * | 2017-02-21 | 2020-06-30 | Qualcomm Incorporated | Deriving motion vector information at a video decoder |
| AU2018271194B2 (en) * | 2017-05-17 | 2021-04-08 | Kt Corporation | Method and device for video signal processing |
| WO2018226015A1 (ko) * | 2017-06-09 | 2018-12-13 | 한국전자통신연구원 | 영상 부호화/복호화 방법, 장치 및 비트스트림을 저장한 기록 매체 |
| US10904565B2 (en) * | 2017-06-23 | 2021-01-26 | Qualcomm Incorporated | Memory-bandwidth-efficient design for bi-directional optical flow (BIO) |
| JP7168593B2 (ja) * | 2017-07-03 | 2022-11-09 | ヴィド スケール インコーポレイテッド | 双方向オプティカルフローに基づいた動き補償予測 |
| CN111052742A (zh) * | 2017-09-30 | 2020-04-21 | 深圳市大疆创新科技有限公司 | 图像处理 |
| US10776688B2 (en) * | 2017-11-06 | 2020-09-15 | Nvidia Corporation | Multi-frame video interpolation using optical flow |
| US11109053B2 (en) * | 2018-03-05 | 2021-08-31 | Panasonic Intellectual Property Corporation Of America | Encoding method, decoding method, encoder, and decoder |
| 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 |
| 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 |
| CN112930684B (zh) * | 2018-08-17 | 2023-10-13 | 寰发股份有限公司 | 在视频编解码系统中利用双向预测处理视频的方法、设备 |
| IL281581B2 (en) * | 2018-09-21 | 2025-05-01 | Vid Scale Inc | Complexity reduction and bit width control for bidirectional optical streaming |
-
2019
- 2019-09-17 IL IL281581A patent/IL281581B2/en unknown
- 2019-09-17 WO PCT/US2019/051560 patent/WO2020061082A1/en not_active Ceased
- 2019-09-17 KR KR1020217008062A patent/KR102708989B1/ko active Active
- 2019-09-17 CN CN201980060852.0A patent/CN112715030B/zh active Active
- 2019-09-17 JP JP2021515221A patent/JP7311589B2/ja active Active
- 2019-09-17 EP EP19780070.9A patent/EP3854089A1/en active Pending
- 2019-09-17 KR KR1020247030758A patent/KR102937491B1/ko active Active
- 2019-09-17 US US17/276,448 patent/US11470308B2/en active Active
- 2019-09-17 CN CN202410474083.1A patent/CN118474345A/zh active Pending
- 2019-09-18 TW TW113143196A patent/TW202516922A/zh unknown
- 2019-09-18 TW TW112132633A patent/TWI866421B/zh active
- 2019-09-18 TW TW108133511A patent/TWI834722B/zh active
-
2022
- 2022-10-10 US US17/962,918 patent/US12003703B2/en active Active
- 2022-10-10 US US17/962,928 patent/US11968358B2/en active Active
-
2023
- 2023-07-06 JP JP2023111403A patent/JP7553659B2/ja active Active
-
2024
- 2024-02-09 US US18/438,202 patent/US12464117B2/en active Active
- 2024-09-05 JP JP2024153291A patent/JP7744485B2/ja active Active
-
2025
- 2025-10-13 US US19/356,614 patent/US20260039801A1/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011129084A1 (ja) | 2010-04-12 | 2011-10-20 | パナソニック株式会社 | 空間予測方法、画像復号方法、および画像符号化方法 |
| US20130028530A1 (en) | 2010-04-12 | 2013-01-31 | Virginie Drugeon | Spatial prediction method, image decoding method, and image coding method |
| WO2018166357A1 (en) | 2017-03-16 | 2018-09-20 | Mediatek Inc. | Method and apparatus of motion refinement based on bi-directional optical flow for video coding |
Non-Patent Citations (1)
| Title |
|---|
| Xiaoyu Xiu, Yuwen He, Yan Ye , Chen-Yen Lai, Yu-Chi Su,Tzu-Der Chuang, Ching-Yeh Chen,Yu-Wen Huang, Shaw-Min Lei，CE9-related: A simplified design of bi-directional optical flow (BIO) [online]， JVET-L JVET-L0591，ITU-T インターネット＜URL:http://phenix.it-sudparis.eu/jvet/doc_end_user/documents/12_Macao/wg11/JVET-L0591-v1.zip＞，2018年10月03日，pp.1-9 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2024166257A (ja) * | 2018-09-21 | 2024-11-28 | ヴィド スケール インコーポレイテッド | 双方向オプティカルフローのための複雑性低減およびビット幅制御 |
| JP7744485B2 (ja) | 2018-09-21 | 2025-09-25 | インターデイジタル ヴィーシー ホールディングス インコーポレイテッド | 双方向オプティカルフローのための複雑性低減およびビット幅制御 |
Also Published As
| Publication number | Publication date |
|---|---|
| IL281581B2 (en) | 2025-05-01 |
| US12003703B2 (en) | 2024-06-04 |
| EP3854089A1 (en) | 2021-07-28 |
| CN118474345A (zh) | 2024-08-09 |
| US20230050213A1 (en) | 2023-02-16 |
| JP2022501906A (ja) | 2022-01-06 |
| TWI834722B (zh) | 2024-03-11 |
| US11470308B2 (en) | 2022-10-11 |
| JP7744485B2 (ja) | 2025-09-25 |
| TW202516922A (zh) | 2025-04-16 |
| JP7553659B2 (ja) | 2024-09-18 |
| US20230053233A1 (en) | 2023-02-16 |
| US20240205389A1 (en) | 2024-06-20 |
| IL281581A (en) | 2021-05-31 |
| KR20240142584A (ko) | 2024-09-30 |
| US20260039801A1 (en) | 2026-02-05 |
| CN112715030B (zh) | 2024-04-23 |
| JP2023118924A (ja) | 2023-08-25 |
| IL281581B1 (en) | 2025-01-01 |
| TWI866421B (zh) | 2024-12-11 |
| KR20210071958A (ko) | 2021-06-16 |
| KR102708989B1 (ko) | 2024-09-23 |
| US20220038679A1 (en) | 2022-02-03 |
| KR102937491B1 (ko) | 2026-03-10 |
| TW202402055A (zh) | 2024-01-01 |
| US11968358B2 (en) | 2024-04-23 |
| US12464117B2 (en) | 2025-11-04 |
| TW202025751A (zh) | 2020-07-01 |
| WO2020061082A1 (en) | 2020-03-26 |
| JP2024166257A (ja) | 2024-11-28 |
| CN112715030A (zh) | 2021-04-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP7311589B2 (ja) | 双方向オプティカルフローのための複雑性低減およびビット幅制御 | |
| US12200222B2 (en) | Affine motion model derivation method | |
| JP7700337B2 (ja) | オプティカルフローによる動き補償のための精度精緻化 | |
| US12177452B2 (en) | Inter prediction bandwidth reduction method with optical flow compensation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20210519 |
|
| RD02 | Notification of acceptance of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7422 Effective date: 20210414 |
|
| RD04 | Notification of resignation of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7424 Effective date: 20210727 |
|
| A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20220408 |
|
| A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20220408 |
|
| TRDD | Decision of grant or rejection written | ||
| A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20230530 |
|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20230606 |
|
| A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20230706 |
|
| R150 | Certificate of patent or registration of utility model |
Ref document number: 7311589 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
| S111 | Request for change of ownership or part of ownership |
Free format text: JAPANESE INTERMEDIATE CODE: R313113 |
|
| R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |