KR920005654A - Luminance and Chromaticity Separation System - Google Patents

Luminance and Chromaticity Separation System Download PDF

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Publication number
KR920005654A
KR920005654A KR1019900013415A KR900013415A KR920005654A KR 920005654 A KR920005654 A KR 920005654A KR 1019900013415 A KR1019900013415 A KR 1019900013415A KR 900013415 A KR900013415 A KR 900013415A KR 920005654 A KR920005654 A KR 920005654A
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South Korea
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signal
luminance
component
output signal
output
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KR1019900013415A
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Korean (ko)
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KR930008183B1 (en
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이호웅
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이헌조
주식회사 금성사
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00Details of colour television systems
    • H04N9/77Circuits 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
    • H04N9/78Circuits 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

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Processing Of Color Television Signals (AREA)

Abstract

내용 없음No content

Description

휘도 및 색도성분 분리시스템Luminance and Chromaticity Separation System

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제2도는 본 발명의 휘도 및 색도성분 분리시스템에 대한 블록도.2 is a block diagram of a luminance and chromatic component separation system of the present invention.

Claims (4)

현재라인과 이전라인의 휘도성분차에 따라 고전위 또는 저전위를 출력하는 휘도성분 분리부(100)와, 검출한 색도성분을 타이밍 제어하여 출력하는 색도성분 분리부(200)와, 현재라인과 이전라인 성분의 차를 구한 후 저주파 영역의 휘도성분을 제거한 색도성분을 출력하는 움직임적응형 콤필터(300)와, 상기 움직임적응형 콤필터(300)의 출력신호에 잔존하는 휘도성분을 제거하여 휘도성분 검출에 필요한 신호를 출력하는 휘도성분 검출용 신호발생부(400)와, 복합영상신호(CV) 및 상기 휘도성분검출용 신호발생부(400)의 출력신호로부터 휘도성분을 검출한다음 외부제어 신호에 따라 크로마성분이 포함된 휘도신호나 포함되지 않은 휘도신호를 출력하는 휘도성분 검출부(500)와, 상기 휘도성분 분리부(100)에서 고전위가 출력되거나, 색도성분의 일부가 휘도성분에 섞여들어가거나, 색도성분이 있는 다음 샘플링 포인트에서 휘도성분이 출현되거나, 이전라인에서 휘도성분이 없고, 색도성분이 있다가 현재 라인에서 휘도성분이 나타날때 고전위의 제어신호를 출력하는 제어신호발생부(600)와, 상기 제어신호발생부(600)의 출력신호에 따라 상기 색도성분분리부(200)의 출력신호나 적응형 콤필터(300)의 출력신호를 최종의 색도신호(Cout)로 선택하여 출력하는 스위치부(700)로 구성된 것을 특징으로 하는 휘도 및 색도성분 분리시스템.A luminance component separation unit 100 for outputting a high potential or a low potential according to the luminance component difference between the current line and the previous line, a chromaticity component separation unit 200 for controlling the timing of the detected chromaticity component and outputting the current line; After obtaining the difference between the previous line components, the adaptive adaptive comb filter 300 for outputting the chromatic components from which the luminance components in the low frequency region are removed, and the luminance components remaining in the output signal of the adaptive adaptive comb filter 300 are removed. The luminance component is detected from the luminance component detection signal generator 400 for outputting a signal for luminance component detection, the composite video signal CV and the output signal of the luminance component detection signal generator 400, and then externally. According to the control signal, the luminance component detector 500 outputs the luminance signal including the chroma component or the luminance signal without the luminance component, and the high potential is output from the luminance component separator 100, or a part of the chromatic components is luminance. A control signal that outputs a high-potential control signal when the luminance component appears at the next sampling point with chromaticity, or when there is no luminance component in the previous line, or when there is a chromatic component in the current line. The output signal of the chromatic component separation unit 200 or the output signal of the adaptive comb filter 300 according to the output signal of the generator 600 and the control signal generator 600 is the final chroma signal Cout. Luminance and chromaticity component separation system, characterized in that consisting of a switch unit for selecting and outputting. 제1항에 있어서, 복합영상신호(CV)를 1라인 지연시켜 출력하는 1라인 지연기(31)와 상기 1라인 지연기(31)의 출력신호에서 현재 라인 신호를 감산하는 감산기(32)와, 현재라인의 복합영상신호(CV)에서 저주파의 휘도신호를 제거하는 고역필터(33)와, 상기 감산기(32)의 출력신호에서 상기 고역필터(33)의 움직임적응형 콤필터(300)를 구성한 것을 특징으로 하는 휘도 및 색도성분 분리시스템.2. The apparatus of claim 1, further comprising: a one-line delayer 31 for delaying one line of the composite video signal CV and outputting it, and a subtractor 32 for subtracting the current line signal from the output signal of the one-line delayer 31; And a high pass filter 33 for removing the low frequency luminance signal from the composite video signal CV of the current line, and a motion adaptive comb filter 300 of the high pass filter 33 from the output signal of the subtractor 32. A luminance and chromaticity component separation system characterized in that the configuration. 제1항에 있어서, 현재라인의 복합영상신호(51)를 타이밍 제어하여 출력하는 지연매치부(51)와, 상기 지연매치부(51)와 출력신호에 상기 휘도성분검출을 신호발생부(400)의 출력신호를 감산하는 크로마감산부(52)와, 이를 다시 타이밍 제어하는 지연매치부(53)와, 상기 지연매치부(53)의 출력신호를 대역통과시켜 색도성분을 검출하는 대역필터(54)와, 상기 지연매치부(53)의 출력신호중에서 대역통과를 저지하여 휘도성분을 출력하는 대역 저지필터(56)와 상기 제어신호발생부(600)의 제어에 따라 상기 대역저지필터(56)의 출력신호가 단독으로 출력되게 하거나 상기 대역필터(54)의 출력신호를 가산시킨 휘도신호(Yout)가 출력되게 하는 스위칭부(55)로 휘도성분 검출부(500)를 구성하는 것을 특징으로 하는 휘도 및 색도성분 분리시스템.The signal generator 400 according to claim 1, further comprising a delay matching unit (51) for timing-controlling and outputting the composite video signal (51) of the current line, and detecting the luminance component in the delay matching unit (51) and an output signal. A band filter for detecting chromaticity components by band-passing the chroma subtractor 52 for subtracting the output signal of the signal, the delay matcher 53 for timing control again, and the output signal of the delay matcher 53. 54 and the band blocking filter 56 under the control of the control signal generator 600 and the band blocking filter 56 which outputs a luminance component by blocking a band pass among the output signals of the delay matching unit 53. The luminance component detection unit 500 is configured by a switching unit 55 which outputs the output signal of the control signal) or outputs the luminance signal Yout obtained by adding the output signal of the band filter 54. Luminance and Chromaticity Separation System. 제1항에 있어서, 상기 감산기(34)의 출력색도 성분의 절대값을 산출하는 산출부(61)와, 상기 절대값 산출부(62)의 출력신호의 크기를 드레쉬 홀드값과 비교하여 그에 따른 신호를 출력하는 비교부(62)와, 상기 대역필터(54)의 출력신호에 대한 절대값을 산출하는 절대값 산출부(63)와, 상기 절대값 산출부(63)의 출력신호의 크기를 드레쉬 홀드값과 비교하여 그에 따른 신호를 출력하는 비교부(62)와, 상기 비교부(62,64)의 출력신호를 논리조합하여 오아게이트(OR1)의 입력으로 제공하는 앤드게이트(AD1-AD4)로 제어신호발생부(600)를 구성한 것을 특징으로 하는 휘도 및 색도성분 분리시스템.The method of claim 1, wherein the output unit 61 for calculating an absolute value of the output chromaticity component of the subtractor 34 and the magnitude of the output signal of the absolute value calculator 62 are compared with a threshold hold value. A comparator 62 for outputting a corresponding signal, an absolute value calculator 63 for calculating an absolute value for the output signal of the band pass filter 54, and an magnitude of an output signal of the absolute value calculator 63 Is compared with the threshold value and outputs the corresponding signal, and the AND gate AD1 which logically combines the output signals of the comparators 62 and 64 as an input of the OR gate OR1. -AD4) luminance and chromatic component separation system characterized in that the control signal generator 600 is configured. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019900013415A 1990-08-29 1990-08-29 Y/c separate system KR930008183B1 (en)

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KR1019900013415A KR930008183B1 (en) 1990-08-29 1990-08-29 Y/c separate system

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KR1019900013415A KR930008183B1 (en) 1990-08-29 1990-08-29 Y/c separate system

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KR920005654A true KR920005654A (en) 1992-03-28
KR930008183B1 KR930008183B1 (en) 1993-08-26

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100447169B1 (en) * 2001-10-31 2004-09-04 엘지전자 주식회사 Circuit and Method for Separating Color/Luminance Signal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100447169B1 (en) * 2001-10-31 2004-09-04 엘지전자 주식회사 Circuit and Method for Separating Color/Luminance Signal

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KR930008183B1 (en) 1993-08-26

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