KR940018771A - 화상 신호 부호화 방법과,복호화 방법 및 화상 신호 기록매체 - Google Patents

화상 신호 부호화 방법과,복호화 방법 및 화상 신호 기록매체 Download PDF

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KR940018771A
KR940018771A KR1019940000332A KR19940000332A KR940018771A KR 940018771 A KR940018771 A KR 940018771A KR 1019940000332 A KR1019940000332 A KR 1019940000332A KR 19940000332 A KR19940000332 A KR 19940000332A KR 940018771 A KR940018771 A KR 940018771A
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signal
speed reproduction
signals
image signal
image
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데루히꼬 스즈끼
요이찌 야가사끼
준 요네미쯔
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오오가 노리오
소니 가부시끼가이샤
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Abstract

고속재생시에 있어서 화상이 끓기는 것을 방지한다. B0 내지 P14의 15프레임의 픽쳐에 의해 GOP를 구성한다. 이중, I픽쳐 I2와 P픽쳐 P5, P8, P11, P14를 정리해서 고속재생용 픽쳐로서 B픽쳐(B0, B1, B3, B4, B6, B7, B9, B10, B12, B13)에 앞에 설치한다. 고속재생시 이 고속재생용의 픽쳐만이 재생한다.

Description

화상 신호 부호화 방법과, 복호화 방법 및, 화상 신호 기록매체
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제 1 도는 본 발명의 화상 신호 부호화 장치의 제 1 실시예의 구성을 도시하는 블록도, 제 2 도는 제 1 도의 실시예에 있어서 화상 신호 부호기(1)의 구성예를 도시하는 블록도, 제 3 도는 제 2 도의 예측 모드 결정 회로(35)의 동작을 설명하는 도면.

Claims (19)

  1. 화상신호를 부호화하여 전송하는 화상신호 부호화 방법에 있어서, 부호화한 화상신호를 고속재생용의 신호와 그밖의 신호로 구분하고, 고속재생용의 신호를 정리해서 전송하는 것을 특징으로 하는 화상신호 부호화 방법.
  2. 제 1 항에 있어서, 상기 고속재생용의 신호는 프레임 내에서 완결해서 부호화 되어 있는 신호화, 한쪽 방향으로 부터의 운동 예측을 행한 신호를 포함하는 것을 특징으로 하는 화상신호 부호화 방법.
  3. 제 1 항에 있어서, 전송하는 신호의 우선순위를 판정하고, 우선순위가 높은 신호를 고속재생용의 신호로 하는 것을 특징을 하는 화상신호 부호화 방법.
  4. 제 3 항에 있어서, 프레임 내에서 완결하는 부호화를 행하는 픽쳐의 신호와 한쪽 방향으로부터의 운동예측을 행한 신호에 대해서만이 우선순위의 판정을 행하는 것을 특징으로 하는 화상 신호 부호화 방법.
  5. 제 1 항 내지 제 4 항중 어느 한 항에 있어서, 상기 고속재생용의 신호를 다른 신호와 식별하기 위한 식별 신호를 동시에 전송하는 것을 특징으로 하는 화상신호 부호화 방법.
  6. 제 1 항 내지 제 5 항중 어느 한항에 있어서, 상기 고속재생용의 신호량을 식별하기 위한 식별신호를 동시에 전송하는 것을 특징으로 하는 화상신호 부호화 방법.
  7. 제 1 항 내지 제 6 항중 어느 한항에 있어서, 상기 고속재생용의 신호 위치를 식별하기 위한 식별신호를 동시에 전송하는 것을 특징으로 하는 화상신호 부호의 방법.
  8. 제 7 항에 있어서, 상기 고속재생용의 신호 위치를 식별하기 위한 식별신호를 정리해서 동시에 전송하는 것을 특징으로 하는 화상신호 부호화 방법.
  9. 제 3 항에 있어서, 상기 고속재생용의 신호의 각 블럭의 말미에 블럭 종료 코드를 부가해서 전송하는 것을 특징으로 하는 화상 신호 부호화 방법.
  10. 제 3 항에 있어서, 상기 화상 신호에 대한 부호화는 가변 길이 부호화를 포함하고 상기 고속재생용의 신호에 대한 가변길이 부호화 처리의 이벤트수를 전송하는 것을 특징으로 하는 화상신호 부호화 방법.
  11. 제 1 항 내지 제 10 항중 어느 한항에 있어서, 상기 고속재생용의 신호와 그 밖의 신호는 각각을 기억하기 위한 2개의 영역으로 분할된 기억수단에 일시기억된 후, 앞서 상기 고속재생용의 신호가 독출되어서부터 그 밖의 신호가 독출되어 전송되고, 상기 기억수단에 대한 상기 고속재생용의 신호와 그 밖의 신호의 읽기쓰기는 각각에 대한 기입 포인터 및 독출 포인터에 의해 제어되는 것을 특징으로 하는 화상신호 부호화 방법.
  12. 고속재생용의 신호와 그밖의 신호가 구분되어서 전송되어온 신호로부터 상기 고속재생용의 신호와 그 밖의 신호를 추출하고, 상기 고속재생용의 신호와 그 밖의 신호를 합성하고, 통상의 속도의 신호로서 재생하는 것을 특징으로 하는 화상신호 복호화 방법.
  13. 고속재생용의 신호와 그 밖의 신호가 구분되어 전송되어 온 신호로부터 상기 고속재생용의 신호를 추출하고, 상기 고속재생용의 신호를 복호하여 고속재생 화상을 재생하는 것을 특징으로 하는 화상신호 복호화 방법.
  14. 제 13 항에 있어서, 고속재생용의 신호가 그것을 식별하는 식별신호와 함께 전송되어온 신호로부터 그 것이 식별신호를 추출하고, 추출한 상기 식별신호를 이용해서 상기 고속재생용의 신호를 추출하는 것을 특징으로 하는 화상신호 복호화 방법.
  15. 제13항 또는 제14 항에 있어서, 고속재생용의 신호가 그것의 량을 식별하는 식별신호와 함께 전송되어 온 신호로부터 그 식별신호를 추출하고, 추출한 상기 식별 신호를 이용하여 상기 고속재생용의 신호를 복호 하는 것을 특징으로 하는 화상신호 복호화 방법.
  16. 제13, 14 또는 제15항에 있어서, 고속재생용의 신호가 그것의 기록위치를 식별하는 식별신호와 함께 전송되어온 신호로 부터 그것의 식별신호를 추출하고, 추출한 상기 식별신호를 이용하여 상기 고속재생용의 신호를 추출하는 것을 특징으로 하는 화상신호 복호화 방법.
  17. 제16항에 있어서, 고속재생용의 신호가 그 기록위치를 정리하여 식별하는 식별신호와 함께 전송되어 온 신호로 부터 그것의 식별신호를 추출하고, 추출한 상기 식별신호를 이용하여 상기 고속재생용의 신호를 추출하는 것을 특징으로 화는 화상신호 복호화 방법.
  18. 제12항에 있어서, 상기한 그밖의 신호에 에러가 생기고 상기 고속 재생용의 신호와 합성할 수가 없는 경우에는 상기 고속재생용의 신호만을 통상의 속도의 신호로서 재생하는 것을 특징으로 하는 화상신호 복호화 방법.
  19. 부호화된 화상신호가 기록되어 있는 화상신호 기록 매체에 있어서, 고속재생용의 화상신호가 그 밖의 신호와 구분해서 정리해서 기록되어 있는 것을 특징으로 하는 화상신호 기륵매체.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019940000332A 1993-01-11 1994-01-11 화상 신호 부호화 방법과,복호화 방법 및 화상 신호 기록매체 KR940018771A (ko)

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AU673206B2 (en) 1996-10-31
JP3240017B2 (ja) 2001-12-17
CN1095540A (zh) 1994-11-23
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US5602956A (en) 1997-02-11
EP0606868A2 (en) 1994-07-20
JPH06261303A (ja) 1994-09-16

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