CL2021002776A1 - Método y aparato para la señalización de función de mapeo del parámetro de cuantificación del croma - Google Patents
Método y aparato para la señalización de función de mapeo del parámetro de cuantificación del cromaInfo
- Publication number
- CL2021002776A1 CL2021002776A1 CL2021002776A CL2021002776A CL2021002776A1 CL 2021002776 A1 CL2021002776 A1 CL 2021002776A1 CL 2021002776 A CL2021002776 A CL 2021002776A CL 2021002776 A CL2021002776 A CL 2021002776A CL 2021002776 A1 CL2021002776 A1 CL 2021002776A1
- Authority
- CL
- Chile
- Prior art keywords
- mapping function
- luminance
- quantization parameter
- parameter mapping
- chroma quantization
- Prior art date
Links
- 238000013507 mapping Methods 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 3
- 238000013139 quantization Methods 0.000 title abstract 2
- 230000011664 signaling Effects 0.000 title 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
- H04N19/10—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
- H04N19/124—Quantisation
- H04N19/126—Details of normalisation or weighting functions, e.g. normalisation matrices or variable uniform quantisers
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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
- H04N19/10—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
- H04N19/124—Quantisation
-
- 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
- H04N19/172—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
- H04N19/174—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 slice, e.g. a line of blocks or a group of blocks
-
- 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
- H04N19/184—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 bits, e.g. of the compressed video stream
-
- 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
- H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
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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
- H04N19/70—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)
- Processing Of Color Television Signals (AREA)
- Image Processing (AREA)
- Color Television Systems (AREA)
Abstract
Un método para obtener un parámetro de cuantificación (QP) de crominancia para los componentes de crominancia basado en un QP de luminancia para el componente de luminancia, en el que el método es realizado por un decodificador, que comprende el análisis sintáctico de un flujo de bits recibido para obtener el QP de luminancia y la información de una función de mapeo (f) que asocia un índice QP (QPi) al QP de crominancia (QPc); obtener el QPi basado, al menos en parte, en el QP de luminancia; obtener la función de mapeo basada en la información obtenida; y obtener un QPc basado en la función de mapeo obtenida y el QPi obtenido.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201962839607P | 2019-04-26 | 2019-04-26 | |
RU2019000444 | 2019-06-21 | ||
US201962871197P | 2019-07-07 | 2019-07-07 | |
US201962872238P | 2019-07-09 | 2019-07-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
CL2021002776A1 true CL2021002776A1 (es) | 2022-05-20 |
Family
ID=72941360
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CL2021002776A CL2021002776A1 (es) | 2019-04-26 | 2021-10-22 | Método y aparato para la señalización de función de mapeo del parámetro de cuantificación del croma |
Country Status (12)
Country | Link |
---|---|
US (3) | US20220070462A1 (es) |
EP (3) | EP3949402A4 (es) |
JP (2) | JP7368496B2 (es) |
KR (1) | KR20210147063A (es) |
CN (4) | CN113785577B (es) |
AU (1) | AU2020260657A1 (es) |
BR (2) | BR112021021434A2 (es) |
CA (1) | CA3137206A1 (es) |
CL (1) | CL2021002776A1 (es) |
MX (1) | MX2021012861A (es) |
SG (1) | SG11202111156PA (es) |
WO (2) | WO2020216375A1 (es) |
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WO2020253861A1 (en) | 2019-06-21 | 2020-12-24 | Beijing Bytedance Network Technology Co., Ltd. | Adaptive in-loop color-space transform for video coding |
CN113382255B (zh) * | 2019-06-21 | 2022-05-20 | 杭州海康威视数字技术股份有限公司 | 一种编解码方法、设备及存储介质 |
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2020
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2024
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EP4346205A2 (en) | 2024-04-03 |
MX2021012861A (es) | 2021-12-10 |
EP3939283A4 (en) | 2022-05-18 |
CN113785577A (zh) | 2021-12-10 |
BR112021021434A2 (pt) | 2021-12-21 |
CA3137206A1 (en) | 2020-10-29 |
BR112021000379A2 (pt) | 2021-04-13 |
CN113785577B (zh) | 2023-06-27 |
US20240205406A1 (en) | 2024-06-20 |
JP2023179671A (ja) | 2023-12-19 |
EP3949402A4 (en) | 2022-06-08 |
JP7368496B2 (ja) | 2023-10-24 |
EP4346205A3 (en) | 2024-04-24 |
SG11202111156PA (en) | 2021-11-29 |
US20220070462A1 (en) | 2022-03-03 |
KR20210147063A (ko) | 2021-12-06 |
EP3949402A1 (en) | 2022-02-09 |
EP3939283A1 (en) | 2022-01-19 |
AU2020260657A1 (en) | 2021-11-11 |
CN113767629A (zh) | 2021-12-07 |
WO2020216375A1 (en) | 2020-10-29 |
CN116760984A (zh) | 2023-09-15 |
US20220070460A1 (en) | 2022-03-03 |
WO2020216376A1 (en) | 2020-10-29 |
JP2022530480A (ja) | 2022-06-29 |
CN117714687A (zh) | 2024-03-15 |
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