KR900013793A - 고 능률 코딩 장치 - Google Patents

고 능률 코딩 장치 Download PDF

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KR900013793A
KR900013793A KR1019900002493A KR900002493A KR900013793A KR 900013793 A KR900013793 A KR 900013793A KR 1019900002493 A KR1019900002493 A KR 1019900002493A KR 900002493 A KR900002493 A KR 900002493A KR 900013793 A KR900013793 A KR 900013793A
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data
block
generating
transmission
coefficient data
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KR1019900002493A
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노리히사 시로따
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오오가 노리오
소니 가부시끼가이샤
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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
    • H04N19/189—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
    • 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
    • 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
    • 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
    • H04N19/10—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
    • 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
    • H04N19/10—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
    • H04N19/152—Data rate or code amount at the encoder output by measuring the fullness of the transmission buffer

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

Abstract

내용 없음

Description

고 능률 코딩 장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제2도는 본 발명의 한 실시예에 대한 블록 다이어그램.
제3도는 인코딩 프로세스 유니트로서 블록을 기술하는 개략적인 다이어그램.
제4도는 가중 회로의 동작을 설명하는 개략적인 다이어그램.

Claims (4)

  1. 소정의 전송 용량을 가진 데이터 전송 수단에 의한 전송을 위한 비디오 데이터 비교를 허용하는 블록 포맷으로 디지털 비디오 데이터를 코딩하기 위한 고능률 코딩 장치에 있어서, 상기 디지털 비디오 데이터가 공급되는, 블록 데이터를 발생하기 위한 블록세그멘테이션 수단과, 상기 블록 데이터가 공급되며, 각 블록에 대한 DC성분 및 다수의 AC성분을 포함하는 계수 데이터를 발생하기 위한 직각 변환 수단과, 소정의 주기동안에 상기 AC계수 데이타의 제1 분포 테이블을 발생하기 위한 수단과, 상기 제1분포 테이블로부터 누적 형태의 제2분포 테이블을 발생하기 위한 수단과, 상기 데이터 전송 수단의 상기 소정의 전송 용량과 상기 제2분포 테이블에 의한 상기 소정의 주기동안 상기 AC계수 데이터의 총 비트 수를 제어하기 위한 수단과, 상기 각각의 소정 주기동안 상기 DC계수 데이터와 상기 제어된 AC계수 데이터 및 부가 코드를 전송하기 위한 수단을 포함해서 이루어진 고능률 코딩 장치.
  2. 제1항에 있어서, 상기 제어 수단이, 상기 제2분포 테이블에 근거하여 상기 소정의 주기동안에 상기 AC계수 데이터의 총 비트 수를 계산하기 위한 계산 수단과, 상기 데이터 전송 수단의 상기 소정의 전송 용량과 상기 계산된 총 비트 수를 비교하기 위한 비교기 수단을 포함하는 고능률 코딩장치.
  3. 데이터 전송 수단에 의한 전송을 위한 비디오 데이터 비교를 허용하는 블록 포맷으로 디지털 비디오 데이터를 코딩하기 위한 고능률 코딩 장치에 있어서, 상기 디지털 비디오 데이터가 공급되며, 블록 데이터를 발생하기 위한 블러 세그멘테이션 수단과, 상기 블록 데이터가 공급되며, 각 블록에 대한 DC성분 및 다수의 AC성분을 포함하는 계수 데이터를 발생하기 위한 직각 변환수단과, 각 블록에 대한 상기 AC계수 데이터가 공급되며, 그것을 다수의 서브-블럭으로 분할하기 위한 서브-블럭 세그멘테이션 수단과, 전송될 유효 계수 데이타가 포함디어 있는 상기 서브-블럭을 나타내는 어드레스 정보를 발생하기 위한 수단과, 각 블록에 대한 상기 DC계수 데이터와 상기 어드레스 정보 및 상기 유효계수 데이터를 전송하기 위한 수단을 포함해서 이루어진 고능률 코딩 장치.
  4. 데이터 전송 수단에 의한 전송을 위한 비디오 데이터 비교를 허용하는 블록 포맷으로 디지털 오디오 데이터를 코딩하기 위한 고능률 코딩 장치에 있어서, 상기 디지털 오디오 데이터가 공급되며, 블록 데이터를 발생하기 위한 블록 세그멘테이션 수단과, 상기 블록 데이터가 공급되며, 각 블록에 대한 DC성분 및 다수의 AC성분을 포함하는 계수 데이터를 발생하기 위한 직각 변환수단과, 각 블록의 상기 AC계수 데이터가 공급되며, 보다 큰 크기의 서브-블럭으로부터 작은서브-블럭을 순차적으로 발생하기 위한 서브-블럭 세크멘테이션 수단과, 작은 크기의 서브-블럭의 전송 패턴을 나타내는 각 서브-블럭의 크기에 대한 전송 패턴 데이터를 발생하기 위한 수단과, 각 블록에 대한상기 DC계수 데이터와 상기 전송 패턴 데이터 및 유효 계수 데이터를 전송하기 위한 수단을 포함해서 이루어진 고능률 코딩 장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019900002493A 1989-02-28 1990-02-27 고 능률 코딩 장치 KR900013793A (ko)

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JP1046971A JPH02226886A (ja) 1989-02-28 1989-02-28 データ伝送装置及び伝送方法
JP46971 1989-02-28

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US (1) US5006931A (ko)
EP (1) EP0385654B1 (ko)
JP (1) JPH02226886A (ko)
KR (1) KR900013793A (ko)
CA (1) CA2011034C (ko)
DE (1) DE69030459D1 (ko)

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CA2011034A1 (en) 1990-08-31
EP0385654A2 (en) 1990-09-05
US5006931A (en) 1991-04-09
JPH02226886A (ja) 1990-09-10
EP0385654B1 (en) 1997-04-16
EP0385654A3 (en) 1992-12-30
DE69030459D1 (de) 1997-05-22
CA2011034C (en) 2000-05-30

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