KR920005648A - CNR Circuit and Method According to Color Saturation - Google Patents

CNR Circuit and Method According to Color Saturation Download PDF

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Publication number
KR920005648A
KR920005648A KR1019900012813A KR900012813A KR920005648A KR 920005648 A KR920005648 A KR 920005648A KR 1019900012813 A KR1019900012813 A KR 1019900012813A KR 900012813 A KR900012813 A KR 900012813A KR 920005648 A KR920005648 A KR 920005648A
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KR
South Korea
Prior art keywords
signal
data
motion
factor
code
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KR1019900012813A
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Korean (ko)
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KR930003967B1 (en
Inventor
백승웅
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강진구
삼성전자 주식회사
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Priority to KR1019900012813A priority Critical patent/KR930003967B1/en
Publication of KR920005648A publication Critical patent/KR920005648A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals

Abstract

내용 없음.No content.

Description

색포화도에 따른 CNR회로 및 방식CNR Circuit and Method According to Color Saturation

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

제1도는 종래의 회로도.1 is a conventional circuit diagram.

제2도는 제1도의 동작 파형도.2 is an operational waveform diagram of FIG.

제3도는 본 발명에 따른 회로도.3 is a circuit diagram according to the present invention.

제4도는 제3도중 동작 검출부(27)의 동작 파형도.4 is an operation waveform diagram of the motion detection unit 27 in FIG.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

21 : A/D변환기 22,35 : 제1-2코드 변환기21: A / D converter 22,35: 1-2 code converter

23,30 : 제1-2감산기 24 : 필드 메모리23,30: 1-2 subtractor 24: field memory

25 : 절대치기 26 : 클리핑부25: absolute stroke 26: clipping portion

27 : 모션 검출부 28 : 모션 팩터 검출부27: motion detector 28: motion factor detector

29 : 색포화도 결정부 31 : NR모션 팩터 검출부29: color saturation determination unit 31: NR motion factor detection unit

32 : 승산기 33 : 가산기32: multiplier 33: adder

34 : 엔코더 36 : D/A변환기34: encoder 36: D / A converter

Claims (2)

화상 처리 시스템의 색포화도에 따른 CNR회로에 있어서, 색신호를 입력하여 디지탈 신호로 변화 출력하는 A/D변환기(21)와, 상기 A/D변환기(21)의 디지탈 변환된 신호를 입력하여 최상위비트를 인버팅하여 2'S컴프리먼트 코드로 변환하는 제1코드 변환부(22)와, 필드단위로 데이타를 저장하는 필드 메모리(24)와, 상기 디코더(22)의 디코딩 출력된 현재의 데이타(A)와 상기 필드 메모리(24)의 1필드 이전 데이타(B)를 감산하여 출력하는 제1감산기(23)와, 상기 감산기(23)에서 감산된 신호(A-B)를 입력하여 절대값을 취하여 출력하는 절대치기(25)와, 상기 절대치기(25)의 절대값을 취한 8비트 데이타를 5비트 데이타로 클리핑하는 클리핑부(26)와, 상기 클리핑부(26)의 클리핑 신호를 입력하여 드레쉬 홀드값(TH)과 비교하여 모션을 검출하는 모션 검출부(27)와, 상기 모션 검출부(27)의 모션 검출 신호를 입력하여 모션 팩터(Kmot)를 검출하는 모션 팩터 검출부(28)와, 상기 디코더(22)에 코드 변환된 신호를 입력하여 색포화도 팩터(KS)를 결정하는 색포화도 결정부(29)와, 상기 색포화도 결정부(29)의 색포화도 팩터(KS)와 상기 모션 검출부(27)의 모션 팩터(Kmot)를 감산하는 제2감산기(30)와, 상기 제2감산기(30)의 감산된 신호를 입력하여 NR모션 팩터를 검출하는 NR모션팩터 검출부(31)와, 상기 NR모션 팩터 검출부(31)의 NR모션 팩터(Kc)와 상기 제1감산기(23)의 감산된 신호를 승산하는 승산기(32)와, 상기 승산기(32)의 출력신호와 상기 필드 메모리(24)는 1필드 이전 데이타(B)를 가산하는 가산기(33)와, 상기 가산기(33)에서 가산된 신호를 엔코딩 출력하는 엔코더(34)와, 상기 엔코더(34)의 엔코딩된 출력신호를 입력하여 코드를 변환 출력하는 제2코드 변환기(35)와, 상기 제2코드 변환기(35)의 코드 변환된 신호를 아날로그 신호로 변환 출력하는 A/D변환기(36)로 구성됨을 특징으로 하는 색포화도에 따른 CNR회로.In the CNR circuit according to the color saturation degree of the image processing system, an A / D converter 21 for inputting a color signal and converting the digital signal into a digital signal and a digital-converted signal of the A / D converter 21 are input for the most significant bit. A first code converting section 22 for converting the data into a 2'S compliment code, a field memory 24 for storing data in field units, and current data A decoded and outputted by the decoder 22. And a first subtractor 23 for subtracting and outputting one field previous data B of the field memory 24, and an absolute value for inputting and subtracting the absolute value of the signal AB subtracted from the subtractor 23. The clipping unit 26 for clipping the stroke 25, the 8-bit data taking the absolute value of the absolute stroke 25 into 5-bit data, and the clipping signal of the clipping unit 26 are input to the threshold hold value. A motion detection unit 27 for detecting motion in comparison with TH, and the motion detection The motion factor detection unit 28 which detects the motion factor Kmot by inputting the motion detection signal of the unit 27, and the color that determines the color saturation factor KS by inputting the coded signal to the decoder 22. A second subtractor 30 for subtracting the saturation determining unit 29, the color saturation factor KS of the color saturation determining unit 29, and the motion factor Kmot of the motion detection unit 27, and the second subtractor 30. The NR motion factor detector 31 detects the NR motion factor by inputting the subtracted signal of the subtractor 30, and the NR motion factor Kc of the NR motion factor detector 31 and the first subtractor 23. The multiplier 32 for multiplying the subtracted signal, the output signal of the multiplier 32, and the field memory 24 are an adder 33 for adding one field previous data B, and in the adder 33. An encoder 34 for encoding and outputting the added signal, and a second code for converting and outputting a code by inputting the encoded output signal of the encoder 34; And a converter (35) and an A / D converter (36) for converting and outputting the coded signal of the second code converter (35) into an analog signal. 화상 처리 시스템의 색포화도에 따른 CNR방식에 있어서, 색신호를 디지탈 데이타로 변환후 최상위 비트를 인버팅하여 2'S컴플리먼트 코드로 변환하고, 상기 2'S 컴플리먼트 코드로 변환된 현재의 데이타와 한 필드 이전의 데이타를 감산하며, 상기 감산된 데이타를 절대값을 취한후 8비트 데이타를 5비트 데이타로 클리핑하고, 상기 클리핑된 데이타를 드레쉬 홀드값과 비교하여 모션을 검출한 후 모션 정보에 따라 모션 팩터를 검출하며, 상기 2'S컴플리먼트 코드로 변환된 데이타로부터 색포화도 팩터를 검출하고, 상기 모션 팩터에서 색포화도 팩터를 감산하여 NR모션 팩터를 검출하며, 상기 NR모션 팩터 감지신호와 상기 현재의 데이타와 한 필드 이전의 데이타가 감산된 신호를 승산한후 한 필드 이전의 데이타를 가산하고, 상기 가산된 데이타를 엔코딩하여 상기 2'S컴플리먼트 코드로 변환된 신호를 원래의 코드로 코딩하며, 상기 코딩된 신호를 아날로그 신호로 변환하도록 함을 특징으로 하는 화상 처리 시스템의 색포화도에 따른 CNR방식.In the CNR method according to the color saturation degree of the image processing system, the color signal is converted into digital data, the most significant bit is inverted to be converted into a 2'S complement code, and the current data and one field converted into the 2'S complement code. Subtract the previous data, take the absolute value of the subtracted data, clip 8-bit data into 5-bit data, detect the motion by comparing the clipped data with a threshold hold value, and then move the motion according to the motion information. A factor is detected, a color saturation factor is detected from the data converted into the 2'S complement code, a color saturation factor is subtracted from the motion factor to detect an NR motion factor, and the NR motion factor detection signal and the current After multiplying the data by the subtracted signal by the data of one field, the data of one field is added, and the encoded data is encoded. Over the 2'S complement and coding a signal converted to the treatment code to the original code, CNR method according to the color saturation of the image processing system of the coded signal, characterized in that to convert the analog signal. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019900012813A 1990-08-20 1990-08-20 Chroma noise reduction circuit and method KR930003967B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019900012813A KR930003967B1 (en) 1990-08-20 1990-08-20 Chroma noise reduction circuit and method

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Application Number Priority Date Filing Date Title
KR1019900012813A KR930003967B1 (en) 1990-08-20 1990-08-20 Chroma noise reduction circuit and method

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KR920005648A true KR920005648A (en) 1992-03-28
KR930003967B1 KR930003967B1 (en) 1993-05-17

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100368007B1 (en) * 2000-04-17 2003-01-24 국보제약주식회사 Oral composition containing minocycline HCL

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100368007B1 (en) * 2000-04-17 2003-01-24 국보제약주식회사 Oral composition containing minocycline HCL

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