BR112021025017A2 - Codificador, decodificador, métodos e fluxo contínuo de dados - Google Patents
Codificador, decodificador, métodos e fluxo contínuo de dadosInfo
- Publication number
- BR112021025017A2 BR112021025017A2 BR112021025017A BR112021025017A BR112021025017A2 BR 112021025017 A2 BR112021025017 A2 BR 112021025017A2 BR 112021025017 A BR112021025017 A BR 112021025017A BR 112021025017 A BR112021025017 A BR 112021025017A BR 112021025017 A2 BR112021025017 A2 BR 112021025017A2
- Authority
- BR
- Brazil
- Prior art keywords
- block
- decoder
- encoder
- methods
- dequantized
- 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
- H04N19/102—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
- H04N19/10—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
- H04N19/102—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
- H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
-
- 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
- H04N19/146—Data rate or code amount at the encoder output
- H04N19/147—Data rate or code amount at the encoder output according to rate distortion criteria
-
- 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
-
- 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
- H04N19/176—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
- H04N19/60—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding
- H04N19/625—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using discrete cosine transform [DCT]
-
- 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)
- Physics & Mathematics (AREA)
- Discrete Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Abstract
codificador, decodificador, métodos e fluxo contínuo de dados. a presente invenção se refere a um decodificador para decodificação com base em bloco de um sinal de figura codificado usando decodificação por transformação, configurado para selecionar, para um bloco predeterminado, um modo de transformação selecionado, decodificar por entropia um bloco a ser dequantizado, que é associado com o bloco predeterminado de acordo com o modo de transformação selecionado, a partir de um fluxo contínuo de dados e dequantizar o bloco a ser dequantizado usando uma precisão de quantização, que depende do modo de transformação selecionado, para obter um bloco dequantizado.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP19180322 | 2019-06-14 | ||
PCT/EP2020/066355 WO2020249762A1 (en) | 2019-06-14 | 2020-06-12 | Encoder, decoder, methods and computer programs with an improved transform based scaling |
Publications (1)
Publication Number | Publication Date |
---|---|
BR112021025017A2 true BR112021025017A2 (pt) | 2022-02-22 |
Family
ID=66867055
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR112021025017A BR112021025017A2 (pt) | 2019-06-14 | 2020-06-12 | Codificador, decodificador, métodos e fluxo contínuo de dados |
Country Status (9)
Country | Link |
---|---|
US (1) | US20220103820A1 (pt) |
EP (1) | EP3984220A1 (pt) |
JP (1) | JP7522137B2 (pt) |
KR (1) | KR20220030999A (pt) |
CN (1) | CN114009028A (pt) |
BR (1) | BR112021025017A2 (pt) |
MX (1) | MX2021015312A (pt) |
TW (1) | TWI781416B (pt) |
WO (1) | WO2020249762A1 (pt) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020169103A1 (en) | 2019-02-24 | 2020-08-27 | Beijing Bytedance Network Technology Co., Ltd. | Independent coding of palette mode usage indication |
CN114175662B (zh) | 2019-07-20 | 2023-11-24 | 北京字节跳动网络技术有限公司 | 调色板模式使用指示的条件相关编解码 |
CN117221536A (zh) | 2019-07-23 | 2023-12-12 | 北京字节跳动网络技术有限公司 | 调色板模式编解码的模式确定 |
WO2021018166A1 (en) | 2019-07-29 | 2021-02-04 | Beijing Bytedance Network Technology Co., Ltd. | Scanning order improvements for palette mode coding |
CN116684632A (zh) * | 2019-08-23 | 2023-09-01 | 苹果公司 | 图像信号编码/解码方法及其设备 |
WO2021182432A1 (ja) * | 2020-03-12 | 2021-09-16 | 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 | 符号化装置、復号装置、符号化方法、および復号方法 |
Family Cites Families (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002311996A (ja) * | 2001-02-09 | 2002-10-25 | Sony Corp | コンテンツ供給システム |
US8897566B2 (en) * | 2008-09-01 | 2014-11-25 | Nec Corporation | Image identity scale calculation stystem |
KR20100027384A (ko) * | 2008-09-02 | 2010-03-11 | 삼성전자주식회사 | 예측 모드 결정 방법 및 장치 |
JP6041554B2 (ja) * | 2012-06-27 | 2016-12-07 | キヤノン株式会社 | 画像符号化装置、画像符号化方法及びプログラム、画像復号装置、画像復号方法及びプログラム |
CN114786016A (zh) | 2012-07-02 | 2022-07-22 | 韩国电子通信研究院 | 图像编码/解码方法和非暂时性计算机可读记录介质 |
RU2658174C1 (ru) * | 2012-09-06 | 2018-06-19 | Сан Пэтент Траст | Способ кодирования изображений, способ декодирования изображений, устройство кодирования изображений, устройство декодирования изображений и устройство кодирования и декодирования изображений |
US9253483B2 (en) * | 2012-09-25 | 2016-02-02 | Google Technology Holdings LLC | Signaling of scaling list |
WO2014050676A1 (ja) | 2012-09-28 | 2014-04-03 | ソニー株式会社 | 画像処理装置および方法 |
EP2843949B1 (en) * | 2013-06-28 | 2020-04-29 | Velos Media International Limited | Methods and devices for emulating low-fidelity coding in a high-fidelity coder |
GB2518823A (en) * | 2013-09-25 | 2015-04-08 | Sony Corp | Data encoding and decoding |
MY183347A (en) * | 2013-09-30 | 2021-02-18 | Japan Broadcasting Corp | Image encoding device, image decoding device, and the programs thereof |
JP6287035B2 (ja) * | 2013-10-11 | 2018-03-07 | ソニー株式会社 | 復号装置および復号方法 |
US20150215621A1 (en) * | 2014-01-30 | 2015-07-30 | Qualcomm Incorporated | Rate control using complexity in video coding |
WO2015194187A1 (en) * | 2014-06-20 | 2015-12-23 | Sharp Kabushiki Kaisha | Harmonized palette coding |
US9958840B2 (en) * | 2015-02-25 | 2018-05-01 | Mitsubishi Electric Research Laboratories, Inc. | System and method for controlling system using a control signal for transitioning a state of the system from a current state to a next state using different instances of data with different precisions |
US10277896B2 (en) * | 2016-01-22 | 2019-04-30 | Apple Inc. | Intra-frame prediction systems and methods |
WO2017142448A1 (en) * | 2016-02-17 | 2017-08-24 | Telefonaktiebolaget Lm Ericsson (Publ) | Methods and devices for encoding and decoding video pictures |
KR102357329B1 (ko) * | 2016-07-14 | 2022-02-03 | 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에. 베. | 변환 기반 잔차 코딩을 이용한 예측 화상 코딩 |
CN109792522B (zh) * | 2016-09-30 | 2021-10-15 | 索尼公司 | 图像处理装置和方法 |
EP3685578A1 (en) * | 2017-09-21 | 2020-07-29 | Fraunhofer Gesellschaft zur Förderung der Angewand | Concept for varying a coding quantization parameter across a picture, coding quantization parameter adjustment, and coding quantization parameter adaptation of a multi-channel picture |
EP3484151A1 (en) * | 2017-11-13 | 2019-05-15 | Thomson Licensing | Method and apparatus for generating quantization matrices in video encoding and decoding |
US10616585B2 (en) * | 2017-11-22 | 2020-04-07 | Arm Limited | Encoding data arrays |
-
2020
- 2020-06-12 JP JP2021573914A patent/JP7522137B2/ja active Active
- 2020-06-12 BR BR112021025017A patent/BR112021025017A2/pt unknown
- 2020-06-12 TW TW109119881A patent/TWI781416B/zh active
- 2020-06-12 KR KR1020227000600A patent/KR20220030999A/ko unknown
- 2020-06-12 CN CN202080043648.0A patent/CN114009028A/zh active Pending
- 2020-06-12 MX MX2021015312A patent/MX2021015312A/es unknown
- 2020-06-12 WO PCT/EP2020/066355 patent/WO2020249762A1/en active Application Filing
- 2020-06-12 EP EP20731492.3A patent/EP3984220A1/en active Pending
-
2021
- 2021-12-10 US US17/547,937 patent/US20220103820A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
MX2021015312A (es) | 2022-02-03 |
KR20220030999A (ko) | 2022-03-11 |
EP3984220A1 (en) | 2022-04-20 |
CN114009028A (zh) | 2022-02-01 |
JP2022536376A (ja) | 2022-08-15 |
TW202106018A (zh) | 2021-02-01 |
US20220103820A1 (en) | 2022-03-31 |
JP7522137B2 (ja) | 2024-07-24 |
WO2020249762A1 (en) | 2020-12-17 |
TWI781416B (zh) | 2022-10-21 |
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