WO2012144876A3 - 인루프 필터링을 적용한 예측 방법을 이용한 영상 부호화/복호화 방법 및 장치 - Google Patents

인루프 필터링을 적용한 예측 방법을 이용한 영상 부호화/복호화 방법 및 장치 Download PDF

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WO2012144876A3
WO2012144876A3 PCT/KR2012/003125 KR2012003125W WO2012144876A3 WO 2012144876 A3 WO2012144876 A3 WO 2012144876A3 KR 2012003125 W KR2012003125 W KR 2012003125W WO 2012144876 A3 WO2012144876 A3 WO 2012144876A3
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prediction
block
loop filtering
encoding
current block
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PCT/KR2012/003125
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English (en)
French (fr)
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WO2012144876A2 (ko
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정제창
김기백
정동진
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한양대학교 산학협력단
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Application filed by 한양대학교 산학협력단 filed Critical 한양대학교 산학협력단
Priority to US13/877,253 priority Critical patent/US9008180B2/en
Publication of WO2012144876A2 publication Critical patent/WO2012144876A2/ko
Publication of WO2012144876A3 publication Critical patent/WO2012144876A3/ko
Priority to US14/609,472 priority patent/US9420312B2/en
Priority to US15/210,978 priority patent/US10237577B2/en
Priority to US15/210,967 priority patent/US10129567B2/en
Priority to US16/261,390 priority patent/US10785503B2/en
Priority to US16/991,312 priority patent/US11381844B2/en
Priority to US17/829,160 priority patent/US20220295115A1/en

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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
    • H04N19/80—Details of filtering operations specially adapted for video compression, e.g. for pixel interpolation
    • 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
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    • 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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    • 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
    • H04N19/169—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
    • H04N19/182—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 pixel
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    • 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
    • H04N19/44—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
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    • H04N19/45—Decoders specially adapted therefor, e.g. video decoders which are asymmetric with respect to the encoder performing compensation of the inverse transform mismatch, e.g. Inverse Discrete Cosine Transform [IDCT] mismatch
    • 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
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    • H04N19/503—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal prediction
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    • H04N19/513—Processing of motion vectors
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    • H04N19/50—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding
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    • 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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    • 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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    • 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
    • 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
    • H04N19/59—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial sub-sampling or interpolation, e.g. alteration of picture size or resolution

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  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)

Abstract

인루프 필터링을 적용한 예측 방법이 개시된다. 본 발명에 따른 방법은 동영상 부호화 및 복호화를 위한 예측으로서, 역 양자화 및 역 변환을 거쳐 현재 블록의 잔차 블록을 생성하는 단계, 화면 내 예측을 거쳐 현재 블록의 예측 블록을 생성하는 단계, 잔차 블록과 예측 블록을 합산한 현재 블록에 인루프 필터링을 수행하는 단계 및 인루프 필터링이 수행된 현재 블록을 다음 부호화 대상 블록의 화면 내 예측을 위하여 프레임 버퍼에 저장하는 단계를 포함하여 구성된다. 따라서, 동영상 부호화 및 복호화 과정에서 인루프 필터를 이용하여 예측을 수행하므로써 예측의 정확도를 높이고 예측 오차를 줄일 수 있어 동영상 압축의 효율을 높이고 전송해야할 데이터의 양을 줄이는 효과를 얻을 수 있다.
PCT/KR2012/003125 2011-04-21 2012-04-23 인루프 필터링을 적용한 예측 방법을 이용한 영상 부호화/복호화 방법 및 장치 WO2012144876A2 (ko)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US13/877,253 US9008180B2 (en) 2011-04-21 2012-04-23 Method and apparatus for encoding/decoding images using a prediction method adopting in-loop filtering
US14/609,472 US9420312B2 (en) 2011-04-21 2015-01-30 Method and apparatus for encoding/decoding images using a prediction method adopting in-loop filtering
US15/210,978 US10237577B2 (en) 2011-04-21 2016-07-15 Method and apparatus for encoding/decoding images using a prediction method adopting in-loop filtering
US15/210,967 US10129567B2 (en) 2011-04-21 2016-07-15 Method and apparatus for encoding/decoding images using a prediction method adopting in-loop filtering
US16/261,390 US10785503B2 (en) 2011-04-21 2019-01-29 Method and apparatus for encoding/decoding images using a prediction method adopting in-loop filtering
US16/991,312 US11381844B2 (en) 2011-04-21 2020-08-12 Method and apparatus for encoding/decoding images using a prediction method adopting in-loop filtering
US17/829,160 US20220295115A1 (en) 2011-04-21 2022-05-31 Method and apparatus for encoding/decoding images using a prediction method adopting in-loop filtering

Applications Claiming Priority (2)

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KR20110037484 2011-04-21
KR10-2011-0037484 2011-04-21

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US13/877,253 A-371-Of-International US9008180B2 (en) 2011-04-21 2012-04-23 Method and apparatus for encoding/decoding images using a prediction method adopting in-loop filtering
US14/609,472 Continuation US9420312B2 (en) 2011-04-21 2015-01-30 Method and apparatus for encoding/decoding images using a prediction method adopting in-loop filtering

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WO2012144876A2 WO2012144876A2 (ko) 2012-10-26
WO2012144876A3 true WO2012144876A3 (ko) 2013-01-10

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