KR890013903A - 디코딩 장치 - Google Patents

디코딩 장치 Download PDF

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Publication number
KR890013903A
KR890013903A KR1019890001266A KR890001266A KR890013903A KR 890013903 A KR890013903 A KR 890013903A KR 1019890001266 A KR1019890001266 A KR 1019890001266A KR 890001266 A KR890001266 A KR 890001266A KR 890013903 A KR890013903 A KR 890013903A
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South Korea
Prior art keywords
data
decoding
digital video
block
sample
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KR1019890001266A
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English (en)
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KR970007355B1 (ko
Inventor
데쯔지로 곤도
Original Assignee
오오가 노리오
소니 가부시끼 가이샤
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Publication of KR890013903A publication Critical patent/KR890013903A/ko
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Publication of KR970007355B1 publication Critical patent/KR970007355B1/ko

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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • 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
    • H04N19/98—Adaptive-dynamic-range coding [ADRC]
    • 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
    • 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
    • H04N19/593—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using predictive coding involving spatial prediction techniques

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Error Detection And Correction (AREA)
  • Circuits Of Receivers In General (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Abstract

내용 없음.

Description

디코딩 장치
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 제 1실시예의 블럭선도.
제2 및 3도는 제1도의 동작을 설명하기 위한 개략선도.

Claims (9)

  1. 코딩 장치로부터 전달된 데이타를 디코딩하는 디코딩 장치로서, 디코드되어질 샘플 데이타의 인접 샘플 데이타를 발생하는 수단, 디코드되어질 데이타에 상응하는 데이타 및 상기 인접 샘플 데이타에 상응하는 데이타를 비교하는 비교기 수단, 상기 비교기 수단의 출력이 공급되어 정정 데이타를 발생하는 정정 데이타 발생 수단 및, 디코드되어질 상기 샘플 데이타 및 상기 정정 데이타로부터 상기 원시 데이타를 디코딩하는 디코딩 수단을 구비하는 것을 특징으로 하는 디코딩 장치.
  2. 제1항에 있어서, 상기 코딩 장치는 상기 원시 데이타의 비트수 보다 적은 비트수로 원시 데이타를 코딩하는 것을 특징으로 하는 디코딩 장치.
  3. 제1항에 있어서, 상기 데이타는 디지탈된 비데오 데이타를 포함하며 상기 인접한 샘플 데이타 발생 수단은 한 라인 주기동안 데이타를 지연시키는 라인 지연수단 및 한 샘플 주기동안 데이타를 지연시키는 샘플 지연 수단을 포함하는 것을 특징으로 하는 디코딩 장치.
  4. 제2항에 있어서, 상기 코딩 장치는 화상 소자의 그룹을 표시하는 블럭 데이타의 압축을 허용하는 블럭 포맷으로 디지탈 비데오 데이타를 엔코드하며, 각 블럭내의 상기 화상소자의 디지탈 비데오 데이타의 최대값을 검출하는 제1 검출 수단, 상기 블럭의 상기 화상 소자의 디지탈 비데오 데이타의 최소값을 검출하는 제2 검출 수단, 상기 디지탈 비데오 데이타 각각과 각 블럭에 대한 상기 최대 및 최소값중 한 값간의 차로서 상기 블럭 각각에 대해 변형된 디지탈 비데오 데이타를 발생하는 수단, 원시 데이타의 비트수보다 적은 비트수를 사용하여 상기 변형된 디지탈 비데오 데이타를 엔코딩하는 엔코딩 수단 및 엔코드된 데이타 및 상기 각 블럭에 부가 코드를 전달하는 전달 수단을 포함하며, 상기 부가 코드는 상기 최대값, 최소값 및 상기 동적 범위 정보에 상응하는 신호중 적어도 2개로 형성되는 것을 특징으로하는 디코딩 장치.
  5. 제4항에 있어서, 상기 인접 샘플 데이타 발생 수단은 디코오드된 상기 샘플 데이타가 속하는 동일 블럭에 인접한 샘플 데이타를 발생하며 상기 디코딩 수단은 상기 정정 데이타 및 디코드 되는 상기 샘플 데이타를 가산하는 가산기 수단, 상기 동적 범위 정보에 적합한 상기 가산기 수단의 출력을 디코딩하는 디코더 및 상기 디코더의 출력과 상기 최대 및 최소값중 하나를 혼합시키는 혼합 수단을 포함하는 것을 특징으로 하는 디코딩 장치.
  6. 제4항에 있어서, 또한 상기 동적 범위 정보에 적합되는 전달된 데이타를 디코딩하는 동적 범위 적응 디코더 및 블럭 분할 수단을 구비하는 것을 특징으로 하는 디코딩 장치.
  7. 제6항에 있어서, 상기 인접 샘플 데이타 발생 수단에는 상기 블럭 분할 수단의 출력이 공급되며, 상기 디코딩 수단을 상기 블럭 분할 수단의 출력 및 상기 정정 데이타를 가산하는 가산기를 포함하는 것을 특징으로 하는 디코딩 장치.
  8. 제7항에 있어서, 상기 비교기 수단은 디코드된 샘플 데이타 및 양자화된 스텝의 절반부의 가산된 데이타 및 상기 인접 샘플 데이타를 비교하는 것을 특징으로 하는 디코딩 장치.
  9. 제2항에 있어서, 상기 코딩 장치는 교체 및 사이클 방식으로 제1 비트수 및 제2 비트수로 원시 샘플 데이타를 엔코드하는 것을 특징으로 하는 디코딩 장치.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019890001266A 1988-02-05 1989-02-03 디코딩 장치 KR970007355B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2537788A JP2629238B2 (ja) 1988-02-05 1988-02-05 復号装置及び復号方法
JP63-25377 1988-02-05
JP25377 1988-02-05

Publications (2)

Publication Number Publication Date
KR890013903A true KR890013903A (ko) 1989-09-26
KR970007355B1 KR970007355B1 (ko) 1997-05-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019890001266A KR970007355B1 (ko) 1988-02-05 1989-02-03 디코딩 장치

Country Status (8)

Country Link
US (1) US4890161A (ko)
EP (1) EP0327322B1 (ko)
JP (1) JP2629238B2 (ko)
KR (1) KR970007355B1 (ko)
AT (1) ATE110912T1 (ko)
AU (1) AU620373B2 (ko)
CA (1) CA1334691C (ko)
DE (1) DE68917742T2 (ko)

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Also Published As

Publication number Publication date
AU2951289A (en) 1989-08-10
EP0327322B1 (en) 1994-08-31
KR970007355B1 (ko) 1997-05-07
CA1334691C (en) 1995-03-07
US4890161A (en) 1989-12-26
JP2629238B2 (ja) 1997-07-09
EP0327322A3 (en) 1990-05-16
DE68917742T2 (de) 1995-02-23
DE68917742D1 (de) 1994-10-06
ATE110912T1 (de) 1994-09-15
AU620373B2 (en) 1992-02-20
JPH01200883A (ja) 1989-08-14
EP0327322A2 (en) 1989-08-09

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