KR920007470A - 동적으로 채널 대역폭을 할당하는 장치 및 방법 - Google Patents

동적으로 채널 대역폭을 할당하는 장치 및 방법 Download PDF

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KR920007470A
KR920007470A KR1019910015563A KR910015563A KR920007470A KR 920007470 A KR920007470 A KR 920007470A KR 1019910015563 A KR1019910015563 A KR 1019910015563A KR 910015563 A KR910015563 A KR 910015563A KR 920007470 A KR920007470 A KR 920007470A
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channel sharing
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estimated channel
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KR1019910015563A
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KR950004111B1 (ko
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항 수에-밍
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토마스 스태포드
아메리칸 텔리폰 앤드 텔레그라프 컴파니
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/12—Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal
    • 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
    • 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
    • H04N19/134—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
    • H04N19/30—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using hierarchical techniques, e.g. scalability

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression Or Coding Systems Of Tv Signals (AREA)
  • Image Processing (AREA)
  • Television Systems (AREA)

Abstract

내용 없음.

Description

동적으로 채널 대역폭을 할당하는 장치 및 방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명에 따라서 비디오 엔코더의 전형적인 시스템 개관을 간단화된 블럭도 형태로 도시한도.
제2도는 영상의 전형적인 공간 분할을 도시한도.
제3도는 HDTV 프레임내에 포함된 영상의 전형적인 주파수 분할을 도시한도.
제4도는 전형적인 동적 채널 할당 장치의 수행을 도시한 확대도.
제5도는 전형적인 초기 셰어링 팩터 에스티메이터의 수행을 간단화된 블럭도 형태로 도시한도.
제6도 및 7도는 제8도에 도시된 바와같이 결합될때 초기 셰어링 팩터 추정기에 의해 추정된 채널 셰어링 팩터의 초기 세트를 파생시키는 전형적인 방법을 도시한 순서도.
제8도는 제6도 및 7도를 결합한도.
제9도 및 10도는 제11도에 도시한 바와같이 결합될때 채널 셰어링 팩터의 세트의 정규화를 수행하는 전형적인 방법을 도시한 순서도.
제11도는 제9도 및 10도를 결합한도.
제12도는 비디오 디코더를 고레벨 블럭도 형태로 도시한도.
* 도면의 주요부분에 대한 부호의 설명
101 : 비디오 분할기 102 : 비디오 코더
103 : 동적 채널 할당 장치 104 : 멀티플렉서.

Claims (12)

  1. 활용가능한 전체 채널 대역폭 부분을 통적으로 할당시키는 장치에 있어서, 적어도 하나의 영상 표현을 포함하는 각 프레임으로 구성된 적어도 하나의 비디오의 적어도 상이한 부분을 동시에 처리하는 복수의각 개개 비디오 코더(102)를 포함하는 세트, 사전 프레임(103,108,401,502)에서 사용된 평균 프레임 양자화 계단 크기를 입력으로서 개개 비디오 코더의 상기 세트의 각 멤버로부터 수신하기 위한 수단, 및 현재프레임동안 추정된 채널 셰어링 팩터(103,401,504)의 한 세트를 발생시키는 각 상기 개개 비디오 코더로부터 나온 상기 평균 프레임 양자화 계단 크기에 응답하는 수단을 구비하는 것을 특징으로 하는 동적으로 채널 대역폭을 할당하는 장치.
  2. 제1항에 있어서, 채널 셰어링 팩터의 한 세트를 출력(109)으로서 공급하기 위한 수단을 추가로 구비하는 것을 특징으로 하는 동적으로 채널 대역폭을 할당하는 장치.
  3. 제1항에 있어서, 상기 사전 프레임(103,108,401,501)동안 각 개개 비디오 코더에 의해 펠당 발생되는 평균 비트수를 나타내는 한 세트의 값을 입력으로서하기 위한 수단을 구비하며, 상기 세트의 각 멤버가 개개 비디오 코더의 상기 세트의 적어도 한 멤버와 대응하는 것을 특징으로 하는 동적으로 채널 대역폭을 할당하는 장치.
  4. 제3항에 있어서, 발생 수단이 또한 상기 세트값에 또한 응답하는 것을 특징으로 하는 동적으로 채널대역폭을 할당하는 장치.
  5. 제1항에 있어서, 추정된 채널 셰어링 팩터의 수정된 세트를 추정된 채널 셰어링 팩터의 상기 세트로부터 발생시키므로서, 추정된 채널 셰어링 팩터의 상기 수정된 세트가 상기 현재 프레임(402)보다 앞선 적어도 하나의 프레임동안 적어도 하나와 추정된 채널 셰어링 팩터의 값을 반영시키는 수단을 추가로 구비하는 것을 특징으로 하는 동적으로 채널 대역폭을 할당하는 장치.
  6. 제5항에 있어서, 상기 발생(402)수단이 상기 현재 프레임 보다 앞선 적어도 하나의 프레임동안 상기 현재 추정된 채널 셰어링 팩터의 가중된 평균을 얻기 위한 수단을 추가로 포함하는 것을 특징으로 하는 동적으로 채널 대역폭을 할당하는 장치.
  7. 제1항 또는 5항에 있어서, 만일 발생된다면, 추정된 채널 셰어링 팩터의 수정된 세트 또는 만일 상기 수정된 세트가 바람직하지 않다면, 추정된 채널 셰어링 팩터의 상기 세트 물중 하나를 정규화(403) 하기위한 수단을 구비하는 것을 특징으로 하는 동적으로 채널 대역폭을 할당하는 장치.
  8. 적어도 하나의 영상 표현을 포함하는 각 프레임으로 구성된 적어도 하나의 비디오 신호의 적어도 상이한 부분을 동시에 처리하는 복수의 개개 비디오 코더를 포함하는 한 세트의 각 멤버에 전체 채널 대역폭의 부분을 동적으로 할당하는 방법에 있어서, 사전 프레임에 사용되는 평균 프레임 양자화 계단 크기를 입력으로서 개개 비디오 코더의 상기 세트의 각 멤버로부터 수신하며 , 각 상기 개개 비디오 코더로부터 나온상기 평균 양자화 계단 크기에 응답하는 추정된 채널 셰어링 팩터의 한 세트는 현재 프레임동안 발생시키는특징으로 하는 동적으로 채널 대역폭을 할당하는 방법.
  9. 제8항에 있어서, 채널 셰어링 팩터의 한 세트를 출력으로서 공급하는 단계를 추가로 구비하는 것을특징으로 하는 동적으로 채널 대역폭을 할당하는 방법.
  10. 제8항에 있어서, 각 개개 비디오 코더에 의해 펠당 발생되는 평균 비트수를 표시하는 한 세트의 값을 입력으로서 수신하는 단계를 구비하며, 상기 세트의 각 멤버는 개개 비디오 코더의 상기 세트의 적어도하나의 멤버에 대응하며, 여기서 상기 발생 단계는 상기 세트의 값에 또한 응답하는 것을 특징으로 하는 동적으로 채널 대역폭을 할당하는 방법.
  11. 제8항에 있어서, 추정된 채널 셰어링 팩터의 상기 세트로부터 나온 추정된 채널 셰어링 팩터의 수정된 세트를 발생시키므로서, 추정된 채널 셰어링 팩터의 상기 수정된 세트가 상기 현재 프레임보다 앞선 적어도 하나의 프레임동안 적어도 하나의 추정된 채널 셰어링 팩터값을 반영시키는 단계를 구비하는 것을 특징으로 하는 동적으로 채널 대역폭을 할당하는 방법.
  12. 제8항 또는 11항에 있어서, 만일 발생된다면, 추정된 채널 셰어링 팩터의 상기 수정된 세트 또는 만일 상기 수정된 추정 채널 셰어링 팩터가 발생되지 않으면 추정된 채널 셰어링 팩터의 상기 세트를 정규화하는 단계를 구비하는 것을 특징으로 하는 동적으로 채널 대역폭을 할당하는 방법.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019910015563A 1990-09-10 1991-09-06 동적으로 채널 대역폭을 할당하는 장치 및 방법 KR950004111B1 (ko)

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Application Number Priority Date Filing Date Title
US580,412 1990-09-09
US07/580,412 US5115309A (en) 1990-09-10 1990-09-10 Method and apparatus for dynamic channel bandwidth allocation among multiple parallel video coders

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KR920007470A true KR920007470A (ko) 1992-04-28
KR950004111B1 KR950004111B1 (ko) 1995-04-25

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US (1) US5115309A (ko)
EP (1) EP0479432B1 (ko)
JP (1) JP2504880B2 (ko)
KR (1) KR950004111B1 (ko)
CA (1) CA2049692C (ko)
DE (1) DE69118639T2 (ko)
HK (1) HK146296A (ko)

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