KR970004878A - 비디오 압축 방법 및 장치 - Google Patents

비디오 압축 방법 및 장치 Download PDF

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KR970004878A
KR970004878A KR1019960020928A KR19960020928A KR970004878A KR 970004878 A KR970004878 A KR 970004878A KR 1019960020928 A KR1019960020928 A KR 1019960020928A KR 19960020928 A KR19960020928 A KR 19960020928A KR 970004878 A KR970004878 A KR 970004878A
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frames
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video
video compression
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KR100475198B1 (ko
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헤들리 윌킨슨 제임스
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엠. 츠루아이
소니 유나이티드 킹덤 리미티드
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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
    • H04N19/186—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
    • H04N19/85—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression
    • H04N19/89—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using pre-processing or post-processing specially adapted for video compression involving methods or arrangements for detection of transmission errors at the decoder
    • 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
    • H04N19/577—Motion compensation with bidirectional frame interpolation, i.e. using B-pictures
    • 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
    • H04N19/587—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving temporal sub-sampling or interpolation, e.g. decimation or subsequent interpolation of pictures in a video sequence
    • 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
    • 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
    • H04N19/63—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using transform coding using sub-band based transform, e.g. wavelets

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)

Abstract

디코더 재조성 에러는, 일부 프레임들에 의해 발생된 에러가 다른 프레임들에 의해 발생된 에러보다 더 낮으므로, 다른 프레임들에 걸쳐 에러를 균일화하는 인코더에서 보상하기 위해 추정된다. 보상은 프레임 그룹내의 특정 번호의 프레임에 각각 관련된 시간 대역의 형태로 적용된 시간 가중화에 의해 이루어 진다. 2n개 프레임들 내의 한 프레임은 'T' 프레임이며 나머지 프레임은 'B' 프레임인 로그적 시간 데시메이션 프레임 구조에 대해 상기 기술이 응용될 수 있다.

Description

비디오 압축 방법 및 장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 로그적(logarithmic) 시간 데시메이션 구조를 개략적으로 도시한 도면.

Claims (8)

  1. 현재의 비디오 프레임에 종속된 인코더내의 재조성(reconstruction)에러를 추정하는 단계 및, 다른 프레임들에 걸쳐 에러를 균일화하기 위해 상기 추정된 재조성 에러에 종속된 보상을 하는 단계로 구성되는 것을 특징으로 하는 비디오 압축 방법.
  2. 제1항에 있어서, 'T' 프레임 및 한개 이상의 'B'프레임을 포함하는 그룹으로 인코딩되는 비디오 프레임 그룹은 그 그룹내의 프레임이 보상되는 것에 따라 보상되는 것을 특징으로 하는 비디오 압축 방법.
  3. 제2항에 있어서, 각각의 비디오 프레임 그룹내에서, 'I'프레임이 아닌 다른 임의의 프레임은 'B' 프레임인 것을 특징으로 하는 비디오 압축 방법.
  4. 제3항에 있어서, 각각의 인코딩된 비디오 프레임 그룹은 2n개 프레임들을 포함하는 것을 특징으로 하는 비디오 압축 방법.
  5. 제1항에 내지 제4항 중의 어느 한 항에 있어서, 상기 보상은 시간적 가중화(temoral weighting)에 의해 이루어지는 것을 특징으로 하는 비디오 압축 방법 .
  6. 제5항에 있어서, 입력되는 비디오 프레임 그룹은 다수의 프레임을 포함하고, 상기 시간적 가중화는 특정 번호의 프레임에 각각 관련된 시간 대역의 형태로 적용되는 것을 특징으로 하는 비디오 압축 방법.
  7. 첨부 도면을 참조하여 상세히 설명되는 것을 특징으로 하는 비디오 압축 방법.
  8. 제1항 내지 7항중의 어느 한 항에서 설정된 방법에 따라 동작가능한 것을 특징으로 하는 비디오 압축 장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019960020928A 1995-06-06 1996-06-07 비디오압축방법및장치 Expired - Fee Related KR100475198B1 (ko)

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GB9511461.7 1995-06-06
GB9511461A GB2303267B (en) 1995-06-06 1995-06-06 Video compression

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KR970004878A true KR970004878A (ko) 1997-01-29
KR100475198B1 KR100475198B1 (ko) 2005-06-13

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US (1) US5974183A (ko)
JP (1) JP3469708B2 (ko)
KR (1) KR100475198B1 (ko)
GB (1) GB2303267B (ko)

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US20040001546A1 (en) 2002-06-03 2004-01-01 Alexandros Tourapis Spatiotemporal prediction for bidirectionally predictive (B) pictures and motion vector prediction for multi-picture reference motion compensation
FR2852773A1 (fr) * 2003-03-20 2004-09-24 France Telecom Procedes et dispositifs de codage et de decodage d'une sequence d'images par decomposition mouvement/texture et codage par ondelettes
US8284971B2 (en) * 2008-11-21 2012-10-09 Envoy Medical Corporation Logarithmic compression systems and methods for hearing amplification
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JP2012109726A (ja) * 2010-11-16 2012-06-07 Canon Inc 画像処理装置および画像処理方法
JP2013106333A (ja) 2011-11-17 2013-05-30 Sony Corp 画像処理装置および方法
KR200482829Y1 (ko) 2015-12-28 2017-03-22 최소영 자석이 내장되는 블록완구의 블록 간 접합을 위한 표면구조
KR200482828Y1 (ko) 2015-12-28 2017-03-22 최소영 블록완구에 결합되는 자석내장부재의 블록 간 접합을 위한 표면구조
KR200483151Y1 (ko) 2015-12-28 2017-04-07 최소영 하나의 프레임으로 만들어져 자석내장부재가 결합되는 블록완구의 블록 간 접합을 위한 표면구조

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GB2303267A (en) 1997-02-12
GB2303267B (en) 2000-03-22
GB9511461D0 (en) 1995-08-02
JP3469708B2 (ja) 2003-11-25
JPH08336147A (ja) 1996-12-17
US5974183A (en) 1999-10-26
KR100475198B1 (ko) 2005-06-13

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