MX2022008397A - Metodo de codificacion de imagenes a base de transformacion, y dispositivo para el mismo. - Google Patents
Metodo de codificacion de imagenes a base de transformacion, y dispositivo para el mismo.Info
- Publication number
- MX2022008397A MX2022008397A MX2022008397A MX2022008397A MX2022008397A MX 2022008397 A MX2022008397 A MX 2022008397A MX 2022008397 A MX2022008397 A MX 2022008397A MX 2022008397 A MX2022008397 A MX 2022008397A MX 2022008397 A MX2022008397 A MX 2022008397A
- Authority
- MX
- Mexico
- Prior art keywords
- current block
- lfnst
- transform coefficients
- transform
- same
- 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
- H04N19/132—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
- H04N19/60—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
-
- 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
- H04N19/169—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
- H04N19/18—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
-
- 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
- H04N19/46—Embedding additional information in the video signal during the compression process
-
- 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
- H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
- H04N19/96—Tree coding, e.g. quad-tree coding
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)
- Compression Of Band Width Or Redundancy In Fax (AREA)
Abstract
Un método de decodificación de imágenes de acuerdo con el presente documento puede comprender los pasos de: recibir información de indicador, que indica si una lista de escalamiento está disponible mientras se lleva a cabo una LFNST, y un índice de LFNST e información residual para el bloque actual; determinar, sobre la base de la información de indicador, el índice de LFNST y el tipo de árbol del bloque actual, si la lista de escalamiento es aplicable al bloque actual; derivar coeficientes de transformación para el bloque actual a partir de la información residual sobre la base del resultado de la determinación; y aplicar la LFNST a los coeficientes de transformación para obtener coeficientes de transformación corregidos.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US202062959812P | 2020-01-10 | 2020-01-10 | |
PCT/KR2021/000323 WO2021141469A1 (ko) | 2020-01-10 | 2021-01-11 | 변환에 기반한 영상 코딩 방법 및 그 장치 |
Publications (1)
Publication Number | Publication Date |
---|---|
MX2022008397A true MX2022008397A (es) | 2022-08-08 |
Family
ID=76788213
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MX2022008397A MX2022008397A (es) | 2020-01-10 | 2021-01-11 | Metodo de codificacion de imagenes a base de transformacion, y dispositivo para el mismo. |
Country Status (8)
Country | Link |
---|---|
US (2) | US11659186B2 (es) |
EP (1) | EP4090030A4 (es) |
JP (2) | JP7451722B2 (es) |
KR (1) | KR20220098017A (es) |
CN (1) | CN114930849A (es) |
BR (1) | BR112022013561A2 (es) |
MX (1) | MX2022008397A (es) |
WO (1) | WO2021141469A1 (es) |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103125116A (zh) * | 2010-09-28 | 2013-05-29 | 三星电子株式会社 | 视频编码方法和装置以及解码方法和装置 |
IN2014DN03098A (es) * | 2011-10-17 | 2015-05-15 | Kt Corp | |
EP4199515A1 (en) * | 2016-05-27 | 2023-06-21 | SHARP Kabushiki Kaisha | Systems and methods for varying quantization parameters |
KR102424062B1 (ko) * | 2016-08-24 | 2022-07-22 | 소니그룹주식회사 | 화상 처리 장치, 화상 처리 방법 및 프로그램 |
WO2019074291A1 (ko) * | 2017-10-11 | 2019-04-18 | 엘지전자 주식회사 | 분리 변환 기반 영상 코딩 방법 및 그 장치 |
EP3737093A4 (en) * | 2017-11-28 | 2022-02-09 | Electronics and Telecommunications Research Institute | METHOD AND DEVICE FOR CODING/DECODING IMAGES AND RECORDING MEDIA STORED WITH A BITSTREAM |
US11039139B2 (en) * | 2018-09-14 | 2021-06-15 | Tencent America LLC | Method and apparatus for identity transform in multiple transform selection |
CN118381918A (zh) * | 2018-09-19 | 2024-07-23 | 韩国电子通信研究院 | 用于帧内预测模式编码/解码的方法和记录介质 |
CN113796074A (zh) * | 2019-03-25 | 2021-12-14 | 联发科技股份有限公司 | 用于视频编解码的量化矩阵计算和表示的方法和装置 |
KR20190140423A (ko) * | 2019-07-02 | 2019-12-19 | 광운대학교 산학협력단 | 스케일링을 이용한 잔차 블록 부호화/복호화 방법 및 장치 |
US11457229B2 (en) * | 2019-12-23 | 2022-09-27 | Qualcomm Incorporated | LFNST signaling for chroma based on chroma transform skip |
-
2021
- 2021-01-11 EP EP21738430.4A patent/EP4090030A4/en active Pending
- 2021-01-11 BR BR112022013561A patent/BR112022013561A2/pt unknown
- 2021-01-11 CN CN202180008455.6A patent/CN114930849A/zh active Pending
- 2021-01-11 MX MX2022008397A patent/MX2022008397A/es unknown
- 2021-01-11 WO PCT/KR2021/000323 patent/WO2021141469A1/ko active Application Filing
- 2021-01-11 KR KR1020227020329A patent/KR20220098017A/ko unknown
- 2021-01-11 JP JP2022541892A patent/JP7451722B2/ja active Active
-
2022
- 2022-06-30 US US17/854,540 patent/US11659186B2/en active Active
-
2023
- 2023-03-21 US US18/124,214 patent/US20230224468A1/en active Pending
-
2024
- 2024-03-06 JP JP2024033914A patent/JP2024053020A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
US20230224468A1 (en) | 2023-07-13 |
WO2021141469A1 (ko) | 2021-07-15 |
JP2023509747A (ja) | 2023-03-09 |
US11659186B2 (en) | 2023-05-23 |
BR112022013561A2 (pt) | 2022-09-06 |
CN114930849A (zh) | 2022-08-19 |
JP2024053020A (ja) | 2024-04-12 |
EP4090030A4 (en) | 2024-01-10 |
JP7451722B2 (ja) | 2024-03-18 |
US20220345713A1 (en) | 2022-10-27 |
KR20220098017A (ko) | 2022-07-08 |
EP4090030A1 (en) | 2022-11-16 |
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