MX2022012643A - Mapeado de luminancia con escalado de crominancia para actualización de decodificación gradual. - Google Patents
Mapeado de luminancia con escalado de crominancia para actualización de decodificación gradual.Info
- Publication number
- MX2022012643A MX2022012643A MX2022012643A MX2022012643A MX2022012643A MX 2022012643 A MX2022012643 A MX 2022012643A MX 2022012643 A MX2022012643 A MX 2022012643A MX 2022012643 A MX2022012643 A MX 2022012643A MX 2022012643 A MX2022012643 A MX 2022012643A
- Authority
- MX
- Mexico
- Prior art keywords
- lmcs
- picture
- gdr
- decoding process
- luma mapping
- Prior art date
Links
- 241000023320 Luma <angiosperm> Species 0.000 title abstract 2
- 238000013507 mapping Methods 0.000 title abstract 2
- OSWPMRLSEDHDFF-UHFFFAOYSA-N methyl salicylate Chemical compound COC(=O)C1=CC=CC=C1O OSWPMRLSEDHDFF-UHFFFAOYSA-N 0.000 title abstract 2
- 238000000034 method Methods 0.000 abstract 10
- 238000004590 computer program Methods 0.000 abstract 1
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
- H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
-
- 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
-
- 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
- H04N19/134—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
- H04N19/172—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 picture, frame or field
-
- 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
- H04N19/186—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 colour or a chrominance component
-
- 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
- H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability
-
- 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
- H04N19/46—Embedding additional information in the video signal during the compression process
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
Abstract
Un método, un aparato y un producto de programa informático proporcionan la gestión de procesos de mapeado de luminancia con escalado de crominancia (LMCS) para instantáneas de Actualización de Decodificación Gradual (GDR). En el contexto de un método, el método accede a una instantánea que hay que decodificar y determina si la instantánea está dentro de un periodo de GDR. El método también puede evitar que un proceso de decodificación de LMCS se aplique la instantánea dentro del periodo de GDR. Otro método puede determinar si un límite virtual está dentro de una unidad de árbol de codificación actual de una instantánea con un periodo de GDR y, si es así, evitar que un proceso de decodificación de escalado residual de crominancia asociado con LMCS se aplique a una o más unidades de codificación dentro de un área limpia. Otro método puede rellenar un área de píxeles vecina a partir de uno o más píxeles reconstruidos en un área limpia para un proceso de decodificación de escalado residual de crominancia asociado con LMCS.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US202063007200P | 2020-04-08 | 2020-04-08 | |
| PCT/EP2021/057748 WO2021204553A1 (en) | 2020-04-08 | 2021-03-25 | Luma mapping with chroma scaling for gradual decoding refresh |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| MX2022012643A true MX2022012643A (es) | 2023-01-11 |
Family
ID=75339733
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX2022012643A MX2022012643A (es) | 2020-04-08 | 2021-03-25 | Mapeado de luminancia con escalado de crominancia para actualización de decodificación gradual. |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US20230164338A1 (es) |
| EP (1) | EP4133720A1 (es) |
| JP (1) | JP2023521367A (es) |
| CN (1) | CN115552895A (es) |
| BR (1) | BR112022020381A2 (es) |
| CA (1) | CA3173460A1 (es) |
| MX (1) | MX2022012643A (es) |
| WO (1) | WO2021204553A1 (es) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2590636B (en) * | 2019-12-20 | 2024-01-10 | Canon Kk | High level syntax for video coding and decoding |
| JP7457143B2 (ja) * | 2020-02-14 | 2024-03-27 | 北京字節跳動網絡技術有限公司 | 映像ビットストリームにおける一般的な制約フラグの使用 |
-
2021
- 2021-03-25 JP JP2022561452A patent/JP2023521367A/ja active Pending
- 2021-03-25 WO PCT/EP2021/057748 patent/WO2021204553A1/en unknown
- 2021-03-25 EP EP21715853.4A patent/EP4133720A1/en active Pending
- 2021-03-25 US US17/916,925 patent/US20230164338A1/en active Pending
- 2021-03-25 CA CA3173460A patent/CA3173460A1/en active Pending
- 2021-03-25 MX MX2022012643A patent/MX2022012643A/es unknown
- 2021-03-25 CN CN202180034197.9A patent/CN115552895A/zh active Pending
- 2021-03-25 BR BR112022020381A patent/BR112022020381A2/pt unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CA3173460A1 (en) | 2021-10-14 |
| CN115552895A (zh) | 2022-12-30 |
| US20230164338A1 (en) | 2023-05-25 |
| BR112022020381A2 (pt) | 2022-11-29 |
| EP4133720A1 (en) | 2023-02-15 |
| JP2023521367A (ja) | 2023-05-24 |
| WO2021204553A1 (en) | 2021-10-14 |
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