KR920017499A - Y / C separation system according to edge type - Google Patents

Y / C separation system according to edge type Download PDF

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Publication number
KR920017499A
KR920017499A KR1019910002569A KR910002569A KR920017499A KR 920017499 A KR920017499 A KR 920017499A KR 1019910002569 A KR1019910002569 A KR 1019910002569A KR 910002569 A KR910002569 A KR 910002569A KR 920017499 A KR920017499 A KR 920017499A
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KR
South Korea
Prior art keywords
chroma
edge
signal
separation system
extractor
Prior art date
Application number
KR1019910002569A
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Korean (ko)
Other versions
KR0181960B1 (en
Inventor
이성원
Original Assignee
김광호
삼성전자 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 김광호, 삼성전자 주식회사 filed Critical 김광호
Priority to KR1019910002569A priority Critical patent/KR0181960B1/en
Publication of KR920017499A publication Critical patent/KR920017499A/en
Application granted granted Critical
Publication of KR0181960B1 publication Critical patent/KR0181960B1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/77—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase
    • H04N9/78—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase for separating the brightness signal or the chrominance signal from the colour television signal, e.g. using comb filter
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K5/153—Arrangements in which a pulse is delivered at the instant when a predetermined characteristic of an input signal is present or at a fixed time interval after this instant
    • H03K5/1534—Transition or edge detectors
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K5/00—Manipulating of pulses not covered by one of the other main groups of this subclass
    • H03K2005/00013—Delay, i.e. output pulse is delayed after input pulse and pulse length of output pulse is dependent on pulse length of input pulse

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

내용 없음No content

Description

Edge 형태에 따른 Y/C분리 시스템Y / C separation system according to edge type

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 이 발명 엣지 형태에 따른 Y/C분리시스템의 블럭도.1 is a block diagram of a Y / C separation system according to the present invention.

제2도 크로마 추출기의 상세 블럭도.Detailed block diagram of a chroma extractor.

제3도는 엣지 검출기의 블럭도.3 is a block diagram of an edge detector.

제4도는 엣지 검출기의 구성예.4 is a configuration example of an edge detector.

Claims (3)

디지탈 영상신호로부터 크로마(또는 루미넨스) 신호를 단순하게 추출하는 크로마(또는 루미넨스)추출기(C)와 상기 크로마(또는 루미넨스)추출기(C)로부터 추출된 신호에서 엣지 형태를 판별하는 엣지 검출기(E)와, 상기 엣지검출기(E)의 제어 신호를 이용하여 디지탈 영상신호에서 엣지의 형태에 따라 적합한 필터의 형태를 선택하는 어댑티브 Y/C분리기(A)로 구성된 엣지 형태에 따른 Y/C분리시스템.Edge detector for discriminating the edge shape from the chroma (or luminescence) extractor (C) for simply extracting the chroma (or luminescence) signal from the digital video signal and the signal extracted from the chroma (or luminescence) extractor (C). (E) and Y / C according to the edge shape consisting of an adaptive Y / C separator (A) for selecting a suitable filter type according to the edge shape in the digital video signal using the control signal of the edge detector (E). Separation system. 제1항에 있어서, 엣지 검출기(E)의 입력 신호로 크로마추출기(C)에서 단순하게 추출된 크로마 신호(CV, CV1H, CV2H)를 입력함을 특징으로 하는 엣지 형테에 따른 Y/C분리시스템.The Y / C separation system according to the edge type frame according to claim 1, wherein the chroma signals CV, CV1H, and CV2H, which are simply extracted from the chroma extractor C, are input as an input signal of the edge detector E. . 제1항에 있어서, 어댑티브 Y/C분리기(A)는 상기 크로마추출기(C)에서 추출된 크로마신호를 이용하여 십자(+) 형태의 윈도우를 구성하여 중심값과 비교하여 그 차분 절대값을 구하고 구해진 값들을 상호비교하여 판별한 엣지 형태의 정보에 따라 적합한 필터의 형태를 선택하는 것을 특징으로 하는 엣지 형태에 따른 Y/C분리시스템.The method of claim 1, wherein the adaptive Y / C separator (A) forms a cross-shaped window using the chroma signal extracted from the chroma extractor (C), compares with the center value, and obtains the absolute difference value thereof. Y / C separation system according to the edge type, characterized in that for selecting the appropriate filter type according to the edge type information determined by comparing the obtained values. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910002569A 1991-02-18 1991-02-18 Y/c separation system depending on the type of edge KR0181960B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019910002569A KR0181960B1 (en) 1991-02-18 1991-02-18 Y/c separation system depending on the type of edge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019910002569A KR0181960B1 (en) 1991-02-18 1991-02-18 Y/c separation system depending on the type of edge

Publications (2)

Publication Number Publication Date
KR920017499A true KR920017499A (en) 1992-09-26
KR0181960B1 KR0181960B1 (en) 1999-05-01

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ID=19311182

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019910002569A KR0181960B1 (en) 1991-02-18 1991-02-18 Y/c separation system depending on the type of edge

Country Status (1)

Country Link
KR (1) KR0181960B1 (en)

Also Published As

Publication number Publication date
KR0181960B1 (en) 1999-05-01

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