KR20170077281A - 샘플 적응성 오프셋 제어 - Google Patents
샘플 적응성 오프셋 제어 Download PDFInfo
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- KR20170077281A KR20170077281A KR1020177017438A KR20177017438A KR20170077281A KR 20170077281 A KR20170077281 A KR 20170077281A KR 1020177017438 A KR1020177017438 A KR 1020177017438A KR 20177017438 A KR20177017438 A KR 20177017438A KR 20170077281 A KR20170077281 A KR 20170077281A
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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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- 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
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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
- H04N19/136—Incoming video signal characteristics or properties
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- H—ELECTRICITY
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- 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
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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
- H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
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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
- H04N19/46—Embedding additional information in the video signal during the compression process
- H04N19/463—Embedding additional information in the video signal during the compression process by compressing encoding parameters before transmission
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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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- 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
- H04N19/80—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation
- H04N19/82—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation involving filtering within a prediction loop
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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
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Abstract
Description
도 2는 본 발명의 일 실시예에 따른 다른 양자화 방법을 도시하는 흐름도.
도 3은 본 발명의 일 실시예에 따른 다른 양자화 방법을 도시하는 흐름도.
도 4a 및 도 4b는 본 발명의 일 실시예에 따른, 변환된 색공간(color space)들에서 샘플 적응성 오프셋을 적용하기 위한 방법들을 도시하는 흐름도.
도 5는 본 발명의 일 실시예에 따른 오프셋 내삽(interpolation) 방법을 도시하는 흐름도.
도 6은 본 발명의 일 실시예에 따른, 불균일하게 분포된 범위들을 갖는 샘플들에 대한 오프셋들을 식별하기 위한 방법을 도시하는 흐름도.
도 7은 본 발명의 일 실시예에 따른 코딩 시스템의 블록도.
도 8은 본 발명의 일 실시예에 따른 디코딩 시스템의 블록도.
도 9는 본 발명의 일 실시예에 따른 다중 단말기 시스템의 블록도.
도 10은 샘플 적응성 오프셋의 동적 범위 및/또는 정밀도를 결정 및 시그널링하기 위한 방법을 도시하는 흐름도.
Claims (1)
- 디코딩 방법으로, 상기 방법은,
디코더에 의해 양자화 팩터(factor), 프레임의 제1 위치에 있는 코딩된 비디오 데이터의 값, 상기 제1 위치에 각각 이웃하는 적어도 두 개의 위치의 코딩된 값들을 수신하는 단계;
상기 제1 위치에서 상기 코딩된 비디오 데이터를 디코딩하는 단계 - 상기 디코딩하는 단계는 상기 양자화 팩터에 의해 상기 제1 위치에서 중간 디코딩된 비디오 픽셀 값들을 스케일링하는 단계를 포함함 - ;
상기 디코더에 의해, 상기 제1 위치에서의 상기 스케일링된 픽셀 값 및 상기 이웃하는 위치들에서의 상기 값들을 평가하는 단계;
상기 평가에 기초해서 상기 제1 위치에서의 비디오 데이터의 상기 디코딩된 값을 카테고리로 분류하는 단계;
상기 분류에 기초해서 오프셋 값을 도출하는 단계; 및
상기 도출된 오프셋 값에 따라 상기 제1 위치에서의 상기 디코딩된 비디오 데이터의 샘플 적응성 오프셋 필터링을 수행하는 단계
를 포함하는, 디코딩 방법.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
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| US201361836931P | 2013-06-19 | 2013-06-19 | |
| US61/836,931 | 2013-06-19 | ||
| US14/173,676 US9300967B2 (en) | 2013-06-19 | 2014-02-05 | Sample adaptive offset control |
| US14/173,676 | 2014-02-05 | ||
| US14/255,609 | 2014-04-17 | ||
| US14/255,609 US10708588B2 (en) | 2013-06-19 | 2014-04-17 | Sample adaptive offset control |
| PCT/US2014/036375 WO2014204584A1 (en) | 2013-06-19 | 2014-05-01 | Sample adaptive offset control |
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| Publication Number | Publication Date |
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| KR20170077281A true KR20170077281A (ko) | 2017-07-05 |
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| KR1020187008995A Active KR102072855B1 (ko) | 2013-06-19 | 2014-05-01 | 샘플 적응성 오프셋 제어 |
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Country Status (7)
| Country | Link |
|---|---|
| US (4) | US10708588B2 (ko) |
| EP (1) | EP3011740A1 (ko) |
| JP (5) | JP2016525298A (ko) |
| KR (8) | KR102168600B1 (ko) |
| CN (2) | CN105706449B (ko) |
| AU (6) | AU2014281169B2 (ko) |
| WO (1) | WO2014204584A1 (ko) |
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