BR112021017420A2 - Codificador, decodificador, método de codificação, e método de decodificação - Google Patents
Codificador, decodificador, método de codificação, e método de decodificaçãoInfo
- Publication number
- BR112021017420A2 BR112021017420A2 BR112021017420A BR112021017420A BR112021017420A2 BR 112021017420 A2 BR112021017420 A2 BR 112021017420A2 BR 112021017420 A BR112021017420 A BR 112021017420A BR 112021017420 A BR112021017420 A BR 112021017420A BR 112021017420 A2 BR112021017420 A2 BR 112021017420A2
- Authority
- BR
- Brazil
- Prior art keywords
- prediction
- transform
- circuit
- image
- result
- 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
- H04N19/10—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
- H04N19/102—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
- H04N19/11—Selection of coding mode or of prediction mode among a plurality of spatial predictive coding modes
-
- 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
-
- 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
- H04N19/186—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
- H04N19/42—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation
- H04N19/423—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by implementation details or hardware specially adapted for video compression or decompression, e.g. dedicated software implementation characterised by memory arrangements
-
- 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
- H04N19/593—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques
-
- 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
- H04N19/10—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
-
- 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
- H04N19/61—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding in combination with predictive 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)
Abstract
codificador, decodificador, método de codificação, e método de decodificação. a presente invenção refere-se a dispositivos de codificação e decodificação, bem como métodos e meio de armazenamento associa-dos. o codificador (100) inclui: circuito (160); e memória (162) acoplada ao circuito (160). em operação, o circuito (160): deriva um erro de predição da imagem subtraindo, a partir da imagem, a imagem de predição gerada usando intra predição ou inter predição; realiza a transformada primária no erro de predição, e realiza a transformada secundária em um resultado da transformada primária; realiza quantização em um resultado da transformada secundária; e codifica um resultado da quantização como dados da imagem. na realização da transformada secundária, quando a intra predição ponderada por matriz incluída na intra predição e tendo modo de predição é usada, o circuito (160) usa, como um conjunto de transformadas para a transformada secundária, um conjunto de transformadas comum compartilhado entre o modo de predição. a intra predição ponderada por matriz gera a imagem de predição realizando cálculo de matriz em uma sequência de pixel obtida de valores de pixel dos pixels circundantes de um bloco corrente, e o conjunto de transformadas para a transformada secundária é aplicado a coeficientes de transformada primária obtidos do resultado da transformada primária.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201962834715P | 2019-04-16 | 2019-04-16 | |
| PCT/JP2020/016704 WO2020213677A1 (ja) | 2019-04-16 | 2020-04-16 | 符号化装置、復号装置、符号化方法及び復号方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR112021017420A2 true BR112021017420A2 (pt) | 2022-02-01 |
Family
ID=72837283
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR112021017420A BR112021017420A2 (pt) | 2019-04-16 | 2020-04-16 | Codificador, decodificador, método de codificação, e método de decodificação |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US20220030242A1 (pt) |
| EP (1) | EP3958561A4 (pt) |
| JP (3) | JP7214846B2 (pt) |
| KR (1) | KR20210145762A (pt) |
| CN (5) | CN113678443B (pt) |
| AU (1) | AU2020259889A1 (pt) |
| BR (1) | BR112021017420A2 (pt) |
| CA (1) | CA3135146A1 (pt) |
| MX (1) | MX2021012063A (pt) |
| SG (1) | SG11202111094YA (pt) |
| WO (1) | WO2020213677A1 (pt) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118118663A (zh) * | 2019-04-16 | 2024-05-31 | Lg电子株式会社 | 解码设备、编码设备和发送设备 |
| AU2020257796B2 (en) | 2019-04-16 | 2023-11-02 | Lg Electronics Inc. | Transform for matrix-based intra-prediction in image coding |
| KR20210125088A (ko) * | 2019-04-17 | 2021-10-15 | 후아웨이 테크놀러지 컴퍼니 리미티드 | 매트릭스 기반 인트라 예측 및 2차 변환 코어 선택을 조화시키는 인코더, 디코더 및 대응 방법 |
| WO2020226424A1 (ko) | 2019-05-08 | 2020-11-12 | 엘지전자 주식회사 | Mip 및 lfnst를 수행하는 영상 부호화/복호화 방법, 장치 및 비트스트림을 전송하는 방법 |
| EP3985971A4 (en) * | 2019-06-13 | 2023-05-03 | LG Electronics Inc. | PICTURE ENCODING/DECODING METHOD AND APPARATUS USING A SIMPLIFIED METHOD FOR GENERATION OF AN MPM LIST AND METHOD FOR TRANSMISSION OF A BITSTREAM |
| EP4032274A4 (en) * | 2019-09-19 | 2023-11-01 | Telefonaktiebolaget Lm Ericsson (Publ) | METHOD ALLOWING AN INTRA PREDICTION BLOCK BASED ON A MATRIX TO COMPRISE MULTIPLE TRANSFORMATION BLOCKS |
| GB2588406B (en) * | 2019-10-22 | 2022-12-07 | British Broadcasting Corp | Video encoding and video decoding |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2010137323A1 (ja) * | 2009-05-29 | 2012-11-12 | 三菱電機株式会社 | 映像符号化装置、映像復号装置、映像符号化方法、および映像復号方法 |
| WO2011083573A1 (ja) * | 2010-01-07 | 2011-07-14 | 株式会社 東芝 | 動画像符号化装置及び動画像復号化装置 |
| US10491922B2 (en) * | 2015-09-29 | 2019-11-26 | Qualcomm Incorporated | Non-separable secondary transform for video coding |
| US10277896B2 (en) * | 2016-01-22 | 2019-04-30 | Apple Inc. | Intra-frame prediction systems and methods |
| CN117014631A (zh) * | 2017-04-27 | 2023-11-07 | 松下电器（美国）知识产权公司 | 解码装置、编码装置以及非暂时性记录介质 |
| JP2019017066A (ja) * | 2017-07-03 | 2019-01-31 | パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカＰａｎａｓｏｎｉｃ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｃｏｒｐｏｒａｔｉｏｎ ｏｆ Ａｍｅｒｉｃａ | 符号化装置、復号装置、符号化方法及び復号方法 |
| TWI777907B (zh) * | 2017-07-13 | 2022-09-11 | 美商松下電器（美國）知識產權公司 | 編碼裝置、編碼方法、解碼裝置、解碼方法及電腦可讀取之非暫時性媒體 |
| CN113785588B (zh) * | 2019-04-12 | 2023-11-24 | 北京字节跳动网络技术有限公司 | 基于矩阵的帧内预测的色度编解码模式确定 |
-
2020
- 2020-04-16 SG SG11202111094YA patent/SG11202111094YA/en unknown
- 2020-04-16 AU AU2020259889A patent/AU2020259889A1/en active Pending
- 2020-04-16 BR BR112021017420A patent/BR112021017420A2/pt unknown
- 2020-04-16 CN CN202080028436.5A patent/CN113678443B/zh active Active
- 2020-04-16 CN CN202410057214.6A patent/CN117834873A/zh active Pending
- 2020-04-16 CN CN202410057169.4A patent/CN117834872A/zh active Pending
- 2020-04-16 WO PCT/JP2020/016704 patent/WO2020213677A1/ja unknown
- 2020-04-16 CN CN202410053545.2A patent/CN117834871A/zh active Pending
- 2020-04-16 JP JP2021514212A patent/JP7214846B2/ja active Active
- 2020-04-16 EP EP20790680.1A patent/EP3958561A4/en active Pending
- 2020-04-16 CN CN202410058987.6A patent/CN117896523A/zh active Pending
- 2020-04-16 CA CA3135146A patent/CA3135146A1/en active Pending
- 2020-04-16 MX MX2021012063A patent/MX2021012063A/es unknown
- 2020-04-16 KR KR1020217032736A patent/KR20210145762A/ko unknown
-
2021
- 2021-10-12 US US17/499,294 patent/US20220030242A1/en active Pending
-
2023
- 2023-01-18 JP JP2023005627A patent/JP7389283B2/ja active Active
- 2023-11-16 JP JP2023195204A patent/JP2024003226A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| KR20210145762A (ko) | 2021-12-02 |
| AU2020259889A1 (en) | 2021-11-11 |
| CA3135146A1 (en) | 2020-10-22 |
| SG11202111094YA (en) | 2021-11-29 |
| CN117896523A (zh) | 2024-04-16 |
| JP7389283B2 (ja) | 2023-11-29 |
| JPWO2020213677A1 (pt) | 2020-10-22 |
| JP2023033537A (ja) | 2023-03-10 |
| CN117834872A (zh) | 2024-04-05 |
| CN117834873A (zh) | 2024-04-05 |
| JP2024003226A (ja) | 2024-01-11 |
| CN113678443A (zh) | 2021-11-19 |
| CN117834871A (zh) | 2024-04-05 |
| EP3958561A4 (en) | 2022-08-10 |
| CN113678443B (zh) | 2024-01-19 |
| MX2021012063A (es) | 2021-11-03 |
| WO2020213677A1 (ja) | 2020-10-22 |
| EP3958561A1 (en) | 2022-02-23 |
| US20220030242A1 (en) | 2022-01-27 |
| JP7214846B2 (ja) | 2023-01-30 |
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