SG11202111582QA - Simplification of bi-directional optical flow calculation in video coding - Google Patents
Simplification of bi-directional optical flow calculation in video codingInfo
- Publication number
- SG11202111582QA SG11202111582QA SG11202111582QA SG11202111582QA SG11202111582QA SG 11202111582Q A SG11202111582Q A SG 11202111582QA SG 11202111582Q A SG11202111582Q A SG 11202111582QA SG 11202111582Q A SG11202111582Q A SG 11202111582QA SG 11202111582Q A SG11202111582Q A SG 11202111582QA
- Authority
- SG
- Singapore
- Prior art keywords
- simplification
- video coding
- optical flow
- flow calculation
- directional optical
- Prior art date
Links
Classifications
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- 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
- 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
- H04N19/12—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
- H04N19/102—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
- H04N19/157—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
- H04N19/182—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 pixel
-
- 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
- H04N19/1883—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 relating to sub-band structure, e.g. hierarchical level, directional tree, e.g. low-high [LH], high-low [HL], high-high [HH]
-
- 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
-
- 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
-
- 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)
- Physics & Mathematics (AREA)
- Discrete Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201962851327P | 2019-05-22 | 2019-05-22 | |
| US16/858,046 US11089328B2 (en) | 2019-05-22 | 2020-04-24 | Bi-directional optical flow in video coding |
| PCT/US2020/030064 WO2020236400A1 (en) | 2019-05-22 | 2020-04-27 | Simplification of bi-directional optical flow calculation in video coding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SG11202111582QA true SG11202111582QA (en) | 2021-12-30 |
Family
ID=73456423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SG11202111582QA SG11202111582QA (en) | 2019-05-22 | 2020-04-27 | Simplification of bi-directional optical flow calculation in video coding |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US11089328B2 (zh) |
| EP (1) | EP3973706A1 (zh) |
| JP (1) | JP2022527670A (zh) |
| KR (1) | KR102423655B1 (zh) |
| CN (1) | CN113940078B (zh) |
| BR (1) | BR112021022384A2 (zh) |
| SG (1) | SG11202111582QA (zh) |
| TW (1) | TW202101994A (zh) |
| WO (1) | WO2020236400A1 (zh) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4054191A1 (en) * | 2018-09-14 | 2022-09-07 | Panasonic Intellectual Property Corporation of America | Encoding device, decoding device, encoding method, and decoding method |
| US11153598B2 (en) * | 2019-06-04 | 2021-10-19 | Tencent America LLC | Method and apparatus for video coding using a subblock-based affine motion model |
| TW202408243A (zh) * | 2022-05-16 | 2024-02-16 | 聯發科技股份有限公司 | 用於視頻編解碼的解碼器側運動向量優化和雙向光流的方法和裝置 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10375413B2 (en) * | 2015-09-28 | 2019-08-06 | Qualcomm Incorporated | Bi-directional optical flow for video coding |
| EP3398331A4 (en) * | 2016-02-05 | 2019-04-10 | Mediatek Inc. | METHOD AND APPARATUS FOR MOTION COMPENSATION BASED ON BIDIRECTIONAL OPTICAL FLUSH TECHNOLOGIES FOR VIDEO CODING |
| CN116708783A (zh) * | 2016-07-12 | 2023-09-05 | 韩国电子通信研究院 | 图像编码/解码方法以及用于该方法的记录介质 |
| CN117221575A (zh) * | 2016-10-04 | 2023-12-12 | 英迪股份有限公司 | 图像解码方法、图像编码方法以及发送比特流的方法 |
| US11109062B2 (en) | 2017-03-16 | 2021-08-31 | Mediatek Inc. | Method and apparatus of motion refinement based on bi-directional optical flow for video coding |
| US10477237B2 (en) * | 2017-06-28 | 2019-11-12 | Futurewei Technologies, Inc. | Decoder side motion vector refinement in video coding |
| US20220109871A1 (en) * | 2019-01-14 | 2022-04-07 | InterDigitai VC Holdings, Inc. | Method and apparatus for video encoding and decoding with bi-directional optical flow adapted to weighted prediction |
| JP2020170901A (ja) * | 2019-04-01 | 2020-10-15 | シャープ株式会社 | 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 |
-
2020
- 2020-04-24 US US16/858,046 patent/US11089328B2/en active Active
- 2020-04-27 SG SG11202111582QA patent/SG11202111582QA/en unknown
- 2020-04-27 KR KR1020217037283A patent/KR102423655B1/ko active IP Right Grant
- 2020-04-27 CN CN202080036042.4A patent/CN113940078B/zh active Active
- 2020-04-27 BR BR112021022384A patent/BR112021022384A2/pt unknown
- 2020-04-27 JP JP2021568830A patent/JP2022527670A/ja active Pending
- 2020-04-27 EP EP20727007.5A patent/EP3973706A1/en active Pending
- 2020-04-27 TW TW109114063A patent/TW202101994A/zh unknown
- 2020-04-27 WO PCT/US2020/030064 patent/WO2020236400A1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BR112021022384A2 (pt) | 2021-12-28 |
| WO2020236400A1 (en) | 2020-11-26 |
| CN113940078A (zh) | 2022-01-14 |
| US20200374550A1 (en) | 2020-11-26 |
| TW202101994A (zh) | 2021-01-01 |
| KR102423655B1 (ko) | 2022-07-20 |
| KR20210145827A (ko) | 2021-12-02 |
| JP2022527670A (ja) | 2022-06-02 |
| EP3973706A1 (en) | 2022-03-30 |
| CN113940078B (zh) | 2023-01-10 |
| US11089328B2 (en) | 2021-08-10 |
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