HRP20240832T1 - Transformacija u kodiranju slike utemeljenom na intra predviđanju - Google Patents
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- 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
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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
- H04N19/60—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
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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
- H04N19/12—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
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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
- H04N19/103—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
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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
- H04N19/119—Adaptive subdivision aspects, e.g. subdivision of a picture into rectangular or non-rectangular coding blocks
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- H—ELECTRICITY
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- 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
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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
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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
- H04N19/134—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
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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
- H04N19/176—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
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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
- H04N19/18—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
- H04N19/42—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
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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
- H04N19/50—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
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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
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Claims (3)
1. Metoda dekodiranja slike koju izvodi uređaj za dekodiranje, metoda koja sadrži:
dobivanje (S1400) informacije vezane uz predviđanje i rezidualne vezane informacije za trenutni blok iz bitstreama;
izvođenje (S1410) transformacijskih koeficijenata za trenutni blok na temelju rezidualne vezane informacije; i
generiranje (S1420) rezidualnih uzoraka trenutnog bloka na temelju transformacijskih koeficijenata,
pri čemu da li rezidualna vezana informacija uključuje niskofrekventnu neodvojivu transformaciju, LFNST, indeksnu informaciju koja se odnosi na jednu od kernela transformacije u LFNST setu transformacije ili ne za trenutni blok, određuje se kao odgovor na omogućenu zastavicu za LFNST i matricu temeljenu na intra predviđanju, MIP, zastavica,
pri čemu kao odgovor na omogućenu zastavicu koja predstavlja da je LFNST omogućen i MIP oznaku koja predstavlja da MIP nije primijenjen, rezidualna vezana informacija uključuje informaciju o LFNST indeksu,
pri čemu stvaranje rezidualnih uzoraka sadrži:
izvođenje modificiranih transformacijskih koeficijenata iz transformacijskih koeficijenata temeljenih na LFNST indeksnoj informaciji; i
generiranje rezidualnih uzoraka na temelju modificiranih transformacijskih koeficijenata,
pri čemu MIP zastavica predstavlja je li MIP primijenjen na trenutni blok,
pri čemu se kao odgovor na MIP koji se primjenjuje na trenutni blok, uzorci predviđanja trenutnog bloka izvode redukcijom, kroz prosjek, susjednih referentnih uzoraka trenutnog bloka, izvođenjem matričnog vektorskog množenja na smanjenim susjednim referentnim uzorcima, i dodavanje vektora pomaka vrijednostima na kojima se izvodi množenje matrice-vektora, i
pri čemu je MIP zastavica uključena u informaciju koja se odnosi na predviđanje.
2. Metoda kodiranja slike koju izvodi uređaj za kodiranje, metoda koja sadrži:
određivanje (S1200) načina intra predviđanja i tipa intra predviđanja za trenutni blok;
generiranje (S1210) informacije koja se odnosi na predviđanje za trenutni blok na temelju načina intra predviđanja i tipa intra predviđanja;
izvođenje (S1220) uzoraka predviđanja trenutnog bloka na temelju načina intra predviđanja i tipa intra predviđanja;
generiranje (S1230) rezidualnih uzoraka trenutnog bloka temeljeno na uzorcima predviđanja;
generiranje (S1240) rezidualne vezane informacije za trenutni blok na temelju rezidualnih uzoraka; i
kodiranje (S1250) informacije koja se odnosi na predviđanje i rezidualna vezana informacija,
pri čemu je da li rezidualna vezana informacija uključuje niskofrekventnu neodvojivu transformaciju, LFNST, indeksnu informaciju koja se odnosi na jednu od kernela transformacije u LFNST setu transformacije ili ne za trenutni blok, određuje se kao odgovor na omogućenu zastavicu za LFNST i matricu temeljenu na intra predviđanju, MIP, zastavica,
pri čemu kao odgovor na omogućenu zastavicu koja predstavlja da je LFNST omogućen i MIP zastavicu koja predstavlja da MIP nije primijenjen, rezidualna vezana informacija uključuje informaciju o LFNST indeksu,
pri čemu generiranje rezidualne vezane informacije sadrži:
izvođenje privremenih transformacijskih koeficijenata za trenutni blok na temelju rezidualnih uzoraka;
izvođenje transformacijskih koeficijenata za trenutni blok iz privremenih transformacijskih koeficijenata; i
generiranje rezidualne vezane informacije na temelju transformacijskih koeficijenata,
pri čemu se informacija LFNST indeksa generira na temelju kernela transformacije koji se koristi za izvođenje transformacijskih koeficijenata,
pri čemu MIP zastavica predstavlja je li MIP primijenjen na trenutni blok,
pri čemu se kao odgovor na MIP koji se primjenjuje na trenutni blok, uzorci predviđanja trenutnog bloka izvode smanjivanjem, kroz prosjek, susjednih referentnih uzoraka trenutnog bloka,
izvođenje množenja matrice-vektora na smanjenim susjednim referentnim uzorcima i dodavanje vektora pomaka vrijednostima na kojima se izvodi množenje matrice-vektora, i
pri čemu je MIP oznaka uključena u informacije koje se odnose na predviđanje.
3. Neprolazni računalno čitljiv medij za pohranu koji pohranjuje bitstream generiran metodom kodiranja, metoda koja sadrži:
određivanje (S1200) načina intra predviđanja i tipa intra predviđanja za trenutni blok;
generiranje (S1210) informacija koje se odnose na predviđanje za trenutni blok na temelju načina intra predviđanja i tipa intra predviđanja;
izvođenje (S1220) uzoraka predviđanja trenutnog bloka na temelju načina intra predviđanja i tipa intra predviđanja;
generiranje (S1230) rezidualnih uzoraka trenutnog bloka temeljeno na uzorcima predviđanja;
generiranje (S 1240) rezidualne vezane informacije za tekući blok na temelju rezidualnih uzoraka; i
kodiranje (S 1250) informacije koja se odnosi na predviđanje i rezidualne vezane informacije,
pri čemu je da li rezidualna vezana informacija uključuje niskofrekventnu neodvojivu transformaciju, LFNST, indeksnu informaciju koja se odnosi na jedan od kernela transformacije u LFNST setu transformacije ili ne za trenutni blok, određuje se kao odgovor na omogućenu zastavicu za LFNST i matricu temeljenu na intra predviđanju, MIP, zastavica,
pri čemu kao odgovor na omogućenu zastavicu koja predstavlja da je LFNST omogućen i MIP zastavicu koja predstavlja da MIP nije primijenjen, rezidualna vezana informacija uključuje informacije o LFNST indeksu,
pri čemu generiranje rezidualne vezane informacije sadrži:
izvođenje privremenih transformacijskih koeficijenata za trenutni blok na temelju rezidualnih uzoraka;
izvođenje transformacijskih koeficijenata za trenutni blok iz privremenih transformacijskih koeficijenata; i
generiranje rezidualne vezane informacije na temelju transformacijskih koeficijenata,
pri čemu se informacija LFNST indeksa generira na temelju kernela transformacije koji se koristi za izvođenje transformacijskih koeficijenata,
pri čemu MIP zastavica predstavlja je li MIP primijenjen na trenutni blok,
pri čemu se kao odgovor na MIP koji se primjenjuje na trenutni blok, uzorci predviđanja trenutnog bloka izvode smanjivanjem, kroz prosjek, susjednih referentnih uzoraka trenutnog bloka,
izvođenje množenja matrice-vektora na smanjenim susjednim referentnim uzorcima i dodavanje vektora pomaka vrijednostima na kojima se izvodi množenje matrice-vektora, i
pri čemu je MIP zastavica uključena u informacije koje se odnose na predviđanje.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201962834951P | 2019-04-16 | 2019-04-16 | |
| EP20791140.5A EP3952313B1 (en) | 2019-04-16 | 2020-04-16 | Transform in intra prediction-based image coding |
| PCT/KR2020/005077 WO2020213945A1 (ko) | 2019-04-16 | 2020-04-16 | 인트라 예측 기반 영상 코딩에서의 변환 |
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| HRP20240832T1 true HRP20240832T1 (hr) | 2024-11-08 |
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| HRP20240832TT HRP20240832T1 (hr) | 2019-04-16 | 2020-04-16 | Transformacija u kodiranju slike utemeljenom na intra predviđanju |
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| Country | Link |
|---|---|
| US (4) | US11516510B2 (hr) |
| EP (2) | EP3952313B1 (hr) |
| JP (3) | JP7214894B2 (hr) |
| KR (2) | KR20220162184A (hr) |
| CN (5) | CN118175312A (hr) |
| AU (3) | AU2020258920B2 (hr) |
| ES (1) | ES2981910T3 (hr) |
| FI (1) | FI3952313T3 (hr) |
| HR (1) | HRP20240832T1 (hr) |
| HU (1) | HUE067370T2 (hr) |
| PL (1) | PL3952313T3 (hr) |
| SI (1) | SI3952313T1 (hr) |
| WO (1) | WO2020213945A1 (hr) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2975941T3 (es) | 2019-04-17 | 2024-07-18 | Huawei Tech Co Ltd | Armonización de intrapredicción basada en matriz y selección de núcleo de transformada secundaria |
| AU2020265960A1 (en) * | 2019-04-27 | 2021-08-19 | Huawei Technologies Co., Ltd. | An encoder, a decoder and corresponding methods of intra prediction |
| CN119277062A (zh) * | 2019-04-27 | 2025-01-07 | 数码士有限公司 | 基于帧内预测处理视频信号的方法和设备 |
| WO2023197195A1 (zh) * | 2022-04-13 | 2023-10-19 | Oppo广东移动通信有限公司 | 视频编解码方法、编码器、解码器及存储介质 |
| US11856227B2 (en) * | 2022-05-26 | 2023-12-26 | Mediatek Inc. | Transform architecture in video encoding systems |
| US20250047849A1 (en) * | 2023-08-02 | 2025-02-06 | Tencent America LLC | Methods and systems for signaling and performing secondary transforms |
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| CN101904173B (zh) * | 2007-12-21 | 2013-04-03 | 艾利森电话股份有限公司 | 用于视频编码的改进像素预测的方法及设备 |
| CN100586184C (zh) * | 2008-01-24 | 2010-01-27 | 北京工业大学 | 帧内预测方法 |
| EP2141927A1 (en) * | 2008-07-03 | 2010-01-06 | Panasonic Corporation | Filters for video coding |
| WO2011016248A1 (ja) | 2009-08-06 | 2011-02-10 | パナソニック株式会社 | 符号化方法、復号方法、符号化装置及び復号装置 |
| US9661338B2 (en) | 2010-07-09 | 2017-05-23 | Qualcomm Incorporated | Coding syntax elements for adaptive scans of transform coefficients for video coding |
| JP2012023632A (ja) * | 2010-07-15 | 2012-02-02 | Sony Corp | 符号化装置および符号化方法、並びに、復号装置および復号方法 |
| MX2014004851A (es) * | 2011-10-18 | 2014-05-28 | Kt Corp | Metodo para codificar imagen, metodo para decodificar imagen, codificador de imagen y decodificador de imagen. |
| GB2501535A (en) | 2012-04-26 | 2013-10-30 | Sony Corp | Chrominance Processing in High Efficiency Video Codecs |
| US9503760B2 (en) * | 2013-08-15 | 2016-11-22 | Mediatek Inc. | Method and system for symbol binarization and de-binarization |
| US10491922B2 (en) * | 2015-09-29 | 2019-11-26 | Qualcomm Incorporated | Non-separable secondary transform for video coding |
| US10623774B2 (en) * | 2016-03-22 | 2020-04-14 | Qualcomm Incorporated | Constrained block-level optimization and signaling for video coding tools |
| US11095893B2 (en) * | 2016-10-12 | 2021-08-17 | Qualcomm Incorporated | Primary transform and secondary transform in video coding |
| CN110419218B (zh) * | 2017-03-16 | 2021-02-26 | 联发科技股份有限公司 | 编码或解码视频数据的方法和装置 |
| CN110546952A (zh) * | 2017-03-21 | 2019-12-06 | Lg电子株式会社 | 图像编码系统中的变换方法和用于该变换方法的设备 |
| KR102466945B1 (ko) * | 2017-06-21 | 2022-11-14 | 엘지전자 주식회사 | 영상 코딩 시스템에서 인트라 예측에 따른 영상 디코딩 방법 및 장치 |
| CN117880501A (zh) * | 2018-10-07 | 2024-04-12 | 三星电子株式会社 | 用于编码或解码视频信号的视频信号处理方法和设备 |
| EP3918797A4 (en) * | 2019-03-10 | 2023-01-25 | HFI Innovation Inc. | METHOD AND DEVICE FOR CALCULATION AND REPRESENTATION OF QUANTIZATION MATRICES FOR VIDEO CODING |
| CN118921455A (zh) * | 2019-03-12 | 2024-11-08 | 苹果公司 | 用于对图像信号进行编码/解码的方法及其装置 |
| US11616966B2 (en) * | 2019-04-03 | 2023-03-28 | Mediatek Inc. | Interaction between core transform and secondary transform |
| EP3939314A4 (en) * | 2019-04-12 | 2022-06-08 | Beijing Bytedance Network Technology Co., Ltd. | MATRIX-BASED INTRA PREDICTION-BASED TRANSFORMATION CODING |
| ES2975941T3 (es) * | 2019-04-17 | 2024-07-18 | Huawei Tech Co Ltd | Armonización de intrapredicción basada en matriz y selección de núcleo de transformada secundaria |
| CN118741124A (zh) * | 2019-05-03 | 2024-10-01 | 韩国电子通信研究院 | 对图像进行编码/解码的方法以及比特流的数据的传输方法 |
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