BR112023020254A2 - Correspondência de modelo baseado em predição afim para codificação de vídeo - Google Patents
Correspondência de modelo baseado em predição afim para codificação de vídeoInfo
- Publication number
- BR112023020254A2 BR112023020254A2 BR112023020254A BR112023020254A BR112023020254A2 BR 112023020254 A2 BR112023020254 A2 BR 112023020254A2 BR 112023020254 A BR112023020254 A BR 112023020254A BR 112023020254 A BR112023020254 A BR 112023020254A BR 112023020254 A2 BR112023020254 A2 BR 112023020254A2
- Authority
- BR
- Brazil
- Prior art keywords
- current
- prediction
- model
- block
- video coding
- Prior art date
Links
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
- H04N19/537—Motion estimation other than block-based
- H04N19/54—Motion estimation other than block-based using feature points or meshes
-
- 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
- H04N19/117—Filters, e.g. for pre-processing or post-processing
-
- 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
- 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
- H04N19/533—Motion estimation using multistep search, e.g. two-dimensional [2D]-log search or one-at-a-time search [OTS]
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 |
|---|---|---|---|
| US202163173861P | 2021-04-12 | 2021-04-12 | |
| US202163173949P | 2021-04-12 | 2021-04-12 | |
| US17/715,571 US11936877B2 (en) | 2021-04-12 | 2022-04-07 | Template matching based affine prediction for video coding |
| PCT/US2022/024024 WO2022221140A1 (en) | 2021-04-12 | 2022-04-08 | Template matching based affine prediction for video coding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR112023020254A2 true BR112023020254A2 (pt) | 2023-11-21 |
Family
ID=81448440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR112023020254A BR112023020254A2 (pt) | 2021-04-12 | 2022-04-08 | Correspondência de modelo baseado em predição afim para codificação de vídeo |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP4324206A1 (https=) |
| JP (1) | JP2024514113A (https=) |
| KR (1) | KR20230169960A (https=) |
| BR (1) | BR112023020254A2 (https=) |
| WO (1) | WO2022221140A1 (https=) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US12581101B2 (en) * | 2022-10-18 | 2026-03-17 | Tencent America LLC | Template matching refinement for affine motion |
| JP7827614B2 (ja) * | 2022-12-27 | 2026-03-10 | Kddi株式会社 | 画像復号装置、画像復号方法及びプログラム |
| EP4398568A1 (en) * | 2023-01-09 | 2024-07-10 | Beijing Xiaomi Mobile Software Co., Ltd. | Encoding/decoding video picture data |
| WO2024179598A1 (en) * | 2023-03-02 | 2024-09-06 | Douyin Vision Co., Ltd. | Method, apparatus, and medium for video processing |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10701390B2 (en) * | 2017-03-14 | 2020-06-30 | Qualcomm Incorporated | Affine motion information derivation |
| CN118042153A (zh) * | 2018-01-25 | 2024-05-14 | 三星电子株式会社 | 使用基于子块的运动补偿进行视频信号处理的方法和装置 |
| WO2020047132A1 (en) * | 2018-08-29 | 2020-03-05 | Vid Scale, Inc. | Adaptive motion vector precision for affine motion model based video coding |
| MX2022002254A (es) * | 2019-08-23 | 2022-03-22 | Beijing Dajia Internet Information Tech Co Ltd | Metodo y aparato en refinamiento de prediccion con flujo optico. |
-
2022
- 2022-04-08 JP JP2023561191A patent/JP2024514113A/ja active Pending
- 2022-04-08 EP EP22720166.2A patent/EP4324206A1/en active Pending
- 2022-04-08 KR KR1020237033960A patent/KR20230169960A/ko active Pending
- 2022-04-08 WO PCT/US2022/024024 patent/WO2022221140A1/en not_active Ceased
- 2022-04-08 BR BR112023020254A patent/BR112023020254A2/pt unknown
Also Published As
| Publication number | Publication date |
|---|---|
| WO2022221140A1 (en) | 2022-10-20 |
| JP2024514113A (ja) | 2024-03-28 |
| KR20230169960A (ko) | 2023-12-18 |
| EP4324206A1 (en) | 2024-02-21 |
| TW202243480A (zh) | 2022-11-01 |
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