BR112018015476A2 - método e aparelho de filtragem para remoção de artefato de bloqueio - Google Patents
método e aparelho de filtragem para remoção de artefato de bloqueioInfo
- Publication number
- BR112018015476A2 BR112018015476A2 BR112018015476-8A BR112018015476A BR112018015476A2 BR 112018015476 A2 BR112018015476 A2 BR 112018015476A2 BR 112018015476 A BR112018015476 A BR 112018015476A BR 112018015476 A2 BR112018015476 A2 BR 112018015476A2
- Authority
- BR
- Brazil
- Prior art keywords
- subunit
- pixel value
- filtering
- limit
- filtering 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
- H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
- H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
- H04N19/51—Motion estimation or motion compensation
- H04N19/513—Processing of motion vectors
- H04N19/517—Processing of motion vectors by encoding
- H04N19/52—Processing of motion vectors by encoding by predictive encoding
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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
- H04N19/117—Filters, e.g. for pre-processing or post-processing
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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
-
- 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
- H04N19/136—Incoming video signal characteristics or properties
- H04N19/137—Motion inside a coding unit, e.g. average field, frame or block difference
- H04N19/139—Analysis of motion vectors, e.g. their magnitude, direction, variance or reliability
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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
- H04N19/42—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
- H04N19/43—Hardware specially adapted for motion estimation or compensation
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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
- H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
- H04N19/51—Motion estimation or motion compensation
- H04N19/527—Global motion vector estimation
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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
- H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
- H04N19/51—Motion estimation or motion compensation
- H04N19/583—Motion compensation with overlapping blocks
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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
- H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
- H04N19/86—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving reduction of coding artifacts, e.g. of blockiness
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Compression Or Coding Systems Of Tv Signals (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Compounds Of Unknown Constitution (AREA)
- Filters And Equalizers (AREA)
Abstract
a presente invenção se refere ao campo do processamento de imagens de vídeo, e fornece um método e um aparelho de filtragem para remover um artefato de bloqueio, para resolver um problema que deteriora a qualidade subjetiva e qualidade objetiva de uma imagem porque o processamento de filtragem não pode ser realizado em um bloco de compensação interna de uma unidade de previsão. o método inclui: dividir uma unidade de previsão em pelo menos duas subunidades; percorrer cada uma das pelo menos duas unidades, e determinar pelo menos um limite de filtragem de pelo menos duas subunidades com base em uma regra predefinida; obter um primeiro valor de pixel de uma primeira subunidade a um primeiro valor de pixel de uma segunda subunidade, onde a primeira subunidade e a segunda subunidade são adjacentes ao limite de filtragem; e realizar, com base no primeiro valor de pixel da primeira subunidade e no primeiro valor de pixel da segunda subunidade, processamento de filtragem nos pixels adjacentes ao limite de filtragem.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610064753.8 | 2016-01-29 | ||
| CN201610064753.8A CN107027040B9 (zh) | 2016-01-29 | 2016-01-29 | 一种去除块效应的滤波方法及装置 |
| PCT/CN2016/089797 WO2017128634A1 (zh) | 2016-01-29 | 2016-07-12 | 一种去除块效应的滤波方法及装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| BR112018015476A2 true BR112018015476A2 (pt) | 2018-12-18 |
| BR112018015476B1 BR112018015476B1 (pt) | 2023-08-01 |
Family
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Also Published As
| Publication number | Publication date |
|---|---|
| CN107027040B (zh) | 2020-03-20 |
| WO2017128634A1 (zh) | 2017-08-03 |
| JP6825765B2 (ja) | 2021-02-03 |
| KR102320733B1 (ko) | 2021-11-03 |
| US11265572B2 (en) | 2022-03-01 |
| CN107027040A (zh) | 2017-08-08 |
| HUE062914T2 (hu) | 2023-12-28 |
| CN107027040B9 (zh) | 2020-08-28 |
| KR102214937B1 (ko) | 2021-02-10 |
| KR102495550B1 (ko) | 2023-02-06 |
| SG11201806449SA (en) | 2018-08-30 |
| US20220159292A1 (en) | 2022-05-19 |
| KR102438246B1 (ko) | 2022-08-30 |
| PL3407609T3 (pl) | 2023-12-11 |
| KR20210134073A (ko) | 2021-11-08 |
| PT3407609T (pt) | 2023-11-02 |
| EP3407609A4 (en) | 2019-08-14 |
| SG10202100279XA (en) | 2021-02-25 |
| US20180359484A1 (en) | 2018-12-13 |
| KR20220123341A (ko) | 2022-09-06 |
| EP3407609A1 (en) | 2018-11-28 |
| EP4304172A1 (en) | 2024-01-10 |
| KR20210016649A (ko) | 2021-02-16 |
| JP2019503629A (ja) | 2019-02-07 |
| ES2960755T3 (es) | 2024-03-06 |
| CN108605144A (zh) | 2018-09-28 |
| CN108605144B (zh) | 2021-01-29 |
| KR20180107778A (ko) | 2018-10-02 |
| US11889102B2 (en) | 2024-01-30 |
| EP3407609B1 (en) | 2023-09-06 |
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| B350 | Update of information on the portal [chapter 15.35 patent gazette] | ||
| B09A | Decision: intention to grant [chapter 9.1 patent gazette] | ||
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Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 12/07/2016, OBSERVADAS AS CONDICOES LEGAIS |