KR930014487A - 가변길이의 적응 영상 압축 방법 - Google Patents

가변길이의 적응 영상 압축 방법 Download PDF

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KR930014487A
KR930014487A KR1019910024010A KR910024010A KR930014487A KR 930014487 A KR930014487 A KR 930014487A KR 1019910024010 A KR1019910024010 A KR 1019910024010A KR 910024010 A KR910024010 A KR 910024010A KR 930014487 A KR930014487 A KR 930014487A
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South Korea
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image
variable length
compression method
amount
image compression
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KR1019910024010A
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KR0141824B1 (ko
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이제형
박용철
윤대희
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이헌조
주식회사 금성사
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Priority to KR1019910024010A priority Critical patent/KR0141824B1/ko
Priority to US07/994,775 priority patent/US5475502A/en
Priority to EP19920403538 priority patent/EP0549470A1/en
Priority to JP4343998A priority patent/JPH05276501A/ja
Publication of KR930014487A publication Critical patent/KR930014487A/ko
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Publication of KR0141824B1 publication Critical patent/KR0141824B1/ko

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    • G11—INFORMATION STORAGE
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    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • 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
    • H04N19/189—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding
    • H04N19/192—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the adaptation method, adaptation tool or adaptation type used for the adaptive coding the adaptation method, adaptation tool or adaptation type being iterative or recursive
    • 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
    • H04N19/115—Selection of the code volume for a coding unit prior to 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
    • H04N19/10—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
    • H04N19/126—Details of normalisation or weighting functions, e.g. normalisation matrices or variable uniform quantisers
    • 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
    • H04N19/14—Coding unit complexity, e.g. amount of activity or edge presence estimation
    • 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
    • H04N19/146—Data rate or code amount at the encoder output
    • H04N19/149—Data rate or code amount at the encoder output by estimating the code amount by means of a model, e.g. mathematical model or statistical model
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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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
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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
    • H04N19/18—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
    • 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
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    • H—ELECTRICITY
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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
    • H04N19/13—Adaptive entropy coding, e.g. adaptive variable length coding [AVLC] or context adaptive binary arithmetic coding [CABAC]
    • 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
    • H04N19/146—Data rate or code amount at the encoder output
    • 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
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/91—Entropy coding, e.g. variable length coding [VLC] or arithmetic coding

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Mathematical Analysis (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Pure & Applied Mathematics (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Image Processing (AREA)
  • Television Signal Processing For Recording (AREA)

Abstract

본 발명은 가정용 디지탈 브이 씨 알의 영상 데이타 처리 기술에 관한 것으로, 화상의 특징을 추출하고 이 값을 참조로 부호화 파라메터를 영상마다 산출하여 영상블록의 비트 배분을 행하여 발생 정보량을 일정 종류로 제한하고, 영상의 통계적 성질을 반영하는 부호량 제어를 수행하여 영상을 압축하므로써 정보량의 제어가 용이하고, 발생된 에러도 블록내에 수렴할 수 있다.

Description

가변길이의 적응 영상 압축 방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 일반적인 디지탈 브이 씨 알의 변환 부호화 처리 블록도.
제2도는 제1도에서 비트 비율 압축 엔코더의 블록도.
제3도의 (가) 내지 (다)는 8×8의 휘도신호 블록 4개와 U,V 신호 블록 2개로 구성된 메크로 블록의 예시도.

Claims (1)

  1. 화상의 특징으로 추출하고 이 값을 참조로 부호화 파라메터를 영상마다 산출하여 영상블록의 비트 배분을 행하여 발생 정보량을 일정 종류로 제한하고, 영상의 통계적 성질을 반영하는 부호량 제어를 수행하여 영상을 압축하는 것을 특징으로하는 가변길의 적응 영상 압축 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019910024010A 1991-12-23 1991-12-23 가변길이의 적응 영상 압축 방법 및 장치 KR0141824B1 (ko)

Priority Applications (4)

Application Number Priority Date Filing Date Title
KR1019910024010A KR0141824B1 (ko) 1991-12-23 1991-12-23 가변길이의 적응 영상 압축 방법 및 장치
US07/994,775 US5475502A (en) 1991-12-23 1992-12-22 Variable length-adaptive image data compression method and apparatus
EP19920403538 EP0549470A1 (en) 1991-12-23 1992-12-23 Variable length-adaptive image data compression method and apparatus
JP4343998A JPH05276501A (ja) 1991-12-23 1992-12-24 可変長の適応映像圧縮方法及び装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910024010A KR0141824B1 (ko) 1991-12-23 1991-12-23 가변길이의 적응 영상 압축 방법 및 장치

Publications (2)

Publication Number Publication Date
KR930014487A true KR930014487A (ko) 1993-07-23
KR0141824B1 KR0141824B1 (ko) 1998-07-15

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KR1019910024010A KR0141824B1 (ko) 1991-12-23 1991-12-23 가변길이의 적응 영상 압축 방법 및 장치

Country Status (4)

Country Link
US (1) US5475502A (ko)
EP (1) EP0549470A1 (ko)
JP (1) JPH05276501A (ko)
KR (1) KR0141824B1 (ko)

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JP3700196B2 (ja) * 1994-03-29 2005-09-28 ソニー株式会社 画像処理装置及び画像処理方法
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Also Published As

Publication number Publication date
EP0549470A1 (en) 1993-06-30
JPH05276501A (ja) 1993-10-22
KR0141824B1 (ko) 1998-07-15
US5475502A (en) 1995-12-12

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