MX429024B - Metodo de decodificacion de video y aparato para obtener el parametro de cuantizacion, y metodo de codificacion de video y aparato para transmitir el parametro de cuantizacion - Google Patents
Metodo de decodificacion de video y aparato para obtener el parametro de cuantizacion, y metodo de codificacion de video y aparato para transmitir el parametro de cuantizacionInfo
- Publication number
- MX429024B MX429024B MX2022008502A MX2022008502A MX429024B MX 429024 B MX429024 B MX 429024B MX 2022008502 A MX2022008502 A MX 2022008502A MX 2022008502 A MX2022008502 A MX 2022008502A MX 429024 B MX429024 B MX 429024B
- Authority
- MX
- Mexico
- Prior art keywords
- quantization parameter
- obtaining
- picture
- difference value
- decoding method
- 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
- H04N19/10—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
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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
- H04N19/169—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
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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
- H04N19/169—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
- H04N19/18—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 set of transform coefficients
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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
- H04N19/169—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
- H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
-
- 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)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Abstract
Se proporciona un método de decodificación de vídeo que incluye: obtener, a partir de un conjunto de parámetros de imagen, un valor inicial del parámetro de cuantización (QP) que se aplicará a una imagen actual, e información del valor de diferencia QP del encabezado de la imagen; cuando la información del valor de diferencia QP del encabezado de la imagen indica que la información del valor de diferencia QP está presente en un encabezado de la imagen de la imagen actual, obtener un primer valor de diferencia QP para la imagen actual a partir del encabezado de la imagen; determinar un QP para una unidad de codificación incluida en la imagen actual, usando el valor inicial del QP y el primer valor de diferencia del QP; obtener coeficientes de transformación de la unidad de codificación realizando una cuantización inversa en la unidad de codificación usando el QP; y reconstruir la unidad de codificación usando los coeficientes de transformación.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US202062959452P | 2020-01-10 | 2020-01-10 | |
| PCT/KR2021/000275 WO2021141451A1 (ko) | 2020-01-10 | 2021-01-08 | 양자화 파라미터를 획득하기 위한 비디오 복호화 방법 및 장치, 양자화 파라미터를 전송하기 위한 비디오 부호화 방법 및 장치 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| MX2022008502A MX2022008502A (es) | 2022-08-08 |
| MX429024B true MX429024B (es) | 2025-11-13 |
Family
ID=76788193
Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX2022008502A MX429024B (es) | 2020-01-10 | 2021-01-08 | Metodo de decodificacion de video y aparato para obtener el parametro de cuantizacion, y metodo de codificacion de video y aparato para transmitir el parametro de cuantizacion |
| MX2025009630A MX2025009630A (es) | 2020-01-10 | 2022-07-08 | Metodo de decodificacion de video y aparato para obtener el parametro de cuantizacion, y metodo de codificacion de video y aparato para transmitir el parametro de cuantizacion |
| MX2025012582A MX2025012582A (es) | 2020-01-10 | 2022-07-08 | Metodo de decodificacion de video y aparato para obtener el parametro de cuantizacion, y metodo de codificacion de video y aparato para transmitir el parametro de cuantizacion |
| MX2025012583A MX2025012583A (es) | 2020-01-10 | 2022-07-08 | Metodo de decodificacion de video y aparato para obtener el parametro de cuantizacion, y metodo de codificacion de video y aparato para transmitir el parametro de cuantizacion |
| MX2025012585A MX2025012585A (es) | 2020-01-10 | 2022-07-08 | Metodo de decodificacion de video y aparato para obtener el parametro de cuantizacion, y metodo de codificacion de video y aparato para transmitir el parametro de cuantizacion |
Family Applications After (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| MX2025009630A MX2025009630A (es) | 2020-01-10 | 2022-07-08 | Metodo de decodificacion de video y aparato para obtener el parametro de cuantizacion, y metodo de codificacion de video y aparato para transmitir el parametro de cuantizacion |
| MX2025012582A MX2025012582A (es) | 2020-01-10 | 2022-07-08 | Metodo de decodificacion de video y aparato para obtener el parametro de cuantizacion, y metodo de codificacion de video y aparato para transmitir el parametro de cuantizacion |
| MX2025012583A MX2025012583A (es) | 2020-01-10 | 2022-07-08 | Metodo de decodificacion de video y aparato para obtener el parametro de cuantizacion, y metodo de codificacion de video y aparato para transmitir el parametro de cuantizacion |
| MX2025012585A MX2025012585A (es) | 2020-01-10 | 2022-07-08 | Metodo de decodificacion de video y aparato para obtener el parametro de cuantizacion, y metodo de codificacion de video y aparato para transmitir el parametro de cuantizacion |
Country Status (11)
| Country | Link |
|---|---|
| US (2) | US12382044B2 (es) |
| EP (1) | EP4090020A4 (es) |
| JP (2) | JP7684311B2 (es) |
| KR (4) | KR102304703B1 (es) |
| CN (5) | CN115280773B (es) |
| AU (2) | AU2021206074B2 (es) |
| BR (1) | BR112022013662A2 (es) |
| CA (1) | CA3164388A1 (es) |
| IL (3) | IL330431A (es) |
| MX (5) | MX429024B (es) |
| WO (1) | WO2021141451A1 (es) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2020143114A1 (zh) * | 2019-01-10 | 2020-07-16 | Oppo广东移动通信有限公司 | 图像解码方法、解码器及计算机存储介质 |
| EP3954125A4 (en) | 2019-05-31 | 2022-06-22 | ByteDance Inc. | PALETTE MODE WITH INTRA BLOCK COPY PREDICTION |
| EP3970369A4 (en) | 2019-06-28 | 2022-07-20 | ByteDance Inc. | TECHNIQUES FOR MODIFYING A QUANTIZE PARAMETER IN A TRANSFORM JUMP MODE |
| EP4088456A4 (en) | 2020-02-05 | 2023-06-21 | Beijing Bytedance Network Technology Co., Ltd. | PALETTE MODE FOR A LOCAL DUAL TREE |
| EP4088464A4 (en) * | 2020-02-05 | 2023-06-07 | Beijing Bytedance Network Technology Co., Ltd. | DEBLOCKING PARAMETERS FOR A CHROMA COMPONENT |
| AR121124A1 (es) | 2020-02-29 | 2022-04-20 | Beijing Bytedance Network Tech Co Ltd | Señalización condicional de elementos de sintaxis en una cabecera de imagen |
| KR20260027271A (ko) * | 2020-03-23 | 2026-02-27 | 엘지전자 주식회사 | 비디오 또는 이미지 코딩 시스템에서 디블록킹 필터 파라미터 정보를 시그널링하는 방법 |
| EP4131971A4 (en) * | 2020-04-02 | 2024-04-17 | LG Electronics, Inc. | Image coding method based on chroma deblocking parameter information for monochrome color format in video or image coding system |
| EP4131970A4 (en) * | 2020-04-03 | 2023-03-29 | Peking University | VIDEO ENCODING AND DECODING METHOD AND DEVICE AND STORAGE MEDIA |
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| JP2009540666A (ja) | 2006-11-09 | 2009-11-19 | エルジー エレクトロニクス インコーポレイティド | ビデオ信号のデコーディング／エンコーディング方法及び装置 |
| CN101888555B (zh) * | 2006-11-17 | 2013-04-03 | Lg电子株式会社 | 用于解码/编码视频信号的方法及装置 |
| US20110274162A1 (en) | 2010-05-04 | 2011-11-10 | Minhua Zhou | Coding Unit Quantization Parameters in Video Coding |
| EP3675493A1 (en) | 2010-06-04 | 2020-07-01 | Sony Corporation | Image processing apparatus and method |
| US20120114034A1 (en) * | 2010-11-08 | 2012-05-10 | Mediatek Inc. | Method and Apparatus of Delta Quantization Parameter Processing for High Efficiency Video Coding |
| EP2678944B1 (en) | 2011-02-25 | 2019-11-06 | BlackBerry Limited | Methods and devices for data compression using offset-based adaptive reconstruction levels |
| US9854275B2 (en) | 2011-06-25 | 2017-12-26 | Qualcomm Incorporated | Quantization in video coding |
| EP2713612A4 (en) * | 2011-06-28 | 2014-11-26 | Samsung Electronics Co Ltd | PROCESS AND DEVICE FOR IMAGE CODING AND DECODING USING ADAPTIVE QUANTIZATION PARAMETER DIFFERENTIALS |
| JP2013034161A (ja) * | 2011-06-28 | 2013-02-14 | Sharp Corp | 画像復号装置、画像符号化装置、および符号化データのデータ構造 |
| JP5907367B2 (ja) | 2011-06-28 | 2016-04-26 | ソニー株式会社 | 画像処理装置および方法、プログラム、並びに記録媒体 |
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| KR20130034566A (ko) | 2011-09-28 | 2013-04-05 | 한국전자통신연구원 | 제한된 오프셋 보상 및 루프 필터를 기반으로 하는 영상 부호화 및 복호화 방법 및 그 장치 |
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| WO2018143289A1 (ja) * | 2017-02-02 | 2018-08-09 | シャープ株式会社 | 画像符号化装置及び画像復号装置 |
| US10827173B2 (en) | 2017-11-13 | 2020-11-03 | Electronics And Telecommunications Research Institute | Method and apparatus for quantization |
| KR102242675B1 (ko) * | 2017-11-13 | 2021-04-22 | 한국전자통신연구원 | 양자화 방법 및 장치 |
| KR102390733B1 (ko) * | 2018-06-11 | 2022-04-25 | 한화테크윈 주식회사 | 양자화 파라미터 기반의 잔차 블록 부호화/복호화 방법 및 장치 |
| WO2021086020A1 (ko) * | 2019-10-28 | 2021-05-06 | 엘지전자 주식회사 | 색공간 변환을 이용한 영상 부호화/복호화 방법, 장치 및 비트스트림을 전송하는 방법 |
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2021
- 2021-01-08 IL IL330431A patent/IL330431A/en unknown
- 2021-01-08 MX MX2022008502A patent/MX429024B/es unknown
- 2021-01-08 CN CN202180020581.3A patent/CN115280773B/zh active Active
- 2021-01-08 CA CA3164388A patent/CA3164388A1/en active Pending
- 2021-01-08 IL IL319319A patent/IL319319A/en unknown
- 2021-01-08 CN CN202511323275.3A patent/CN121486569A/zh active Pending
- 2021-01-08 BR BR112022013662A patent/BR112022013662A2/pt unknown
- 2021-01-08 JP JP2022542286A patent/JP7684311B2/ja active Active
- 2021-01-08 CN CN202511323212.8A patent/CN121367777A/zh active Pending
- 2021-01-08 WO PCT/KR2021/000275 patent/WO2021141451A1/ko not_active Ceased
- 2021-01-08 EP EP21738240.7A patent/EP4090020A4/en active Pending
- 2021-01-08 AU AU2021206074A patent/AU2021206074B2/en active Active
- 2021-01-08 CN CN202511322808.6A patent/CN121509653A/zh active Pending
- 2021-01-08 IL IL294576A patent/IL294576B2/en unknown
- 2021-01-08 CN CN202511322731.2A patent/CN121397216A/zh active Pending
- 2021-01-08 KR KR1020210002619A patent/KR102304703B1/ko active Active
- 2021-09-14 KR KR1020210122782A patent/KR102657549B1/ko active Active
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2022
- 2022-07-08 MX MX2025009630A patent/MX2025009630A/es unknown
- 2022-07-08 MX MX2025012582A patent/MX2025012582A/es unknown
- 2022-07-08 MX MX2025012583A patent/MX2025012583A/es unknown
- 2022-07-08 MX MX2025012585A patent/MX2025012585A/es unknown
- 2022-07-11 US US17/861,865 patent/US12382044B2/en active Active
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2024
- 2024-04-09 KR KR1020240048080A patent/KR102817086B1/ko active Active
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2025
- 2025-01-23 KR KR1020250010740A patent/KR20250021501A/ko active Pending
- 2025-05-15 JP JP2025081802A patent/JP2025107485A/ja active Pending
- 2025-07-03 US US19/259,277 patent/US20260012600A1/en active Pending
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2026
- 2026-02-26 AU AU2026201437A patent/AU2026201437A1/en active Pending