KR920015935A - 컬러 ccd카메라용 크로마신호 매트릭스회로 - Google Patents

컬러 ccd카메라용 크로마신호 매트릭스회로 Download PDF

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Publication number
KR920015935A
KR920015935A KR1019920000174A KR920000174A KR920015935A KR 920015935 A KR920015935 A KR 920015935A KR 1019920000174 A KR1019920000174 A KR 1019920000174A KR 920000174 A KR920000174 A KR 920000174A KR 920015935 A KR920015935 A KR 920015935A
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KR
South Korea
Prior art keywords
signals
color
signal
chroma
processing circuit
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Application number
KR1019920000174A
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English (en)
Inventor
야스시 사또
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오가 노리오
소니 가부시기가이샤
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Application filed by 오가 노리오, 소니 가부시기가이샤 filed Critical 오가 노리오
Publication of KR920015935A publication Critical patent/KR920015935A/ko

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Classifications

    • 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
    • H04N9/67—Circuits for processing colour signals for matrixing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/80—Camera processing pipelines; Components thereof
    • H04N23/84—Camera processing pipelines; Components thereof for processing colour signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00—Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/10—Circuitry of solid-state image sensors [SSIS]; Control thereof for transforming different wavelengths into image signals
    • H04N25/11—Arrangement of colour filter arrays [CFA]; Filter mosaics
    • H04N25/13—Arrangement of colour filter arrays [CFA]; Filter mosaics characterised by the spectral characteristics of the filter elements
    • H04N25/134—Arrangement of colour filter arrays [CFA]; Filter mosaics characterised by the spectral characteristics of the filter elements based on three different wavelength filter elements

Abstract

내용 없음

Description

컬러 CCD카메라용 크로마신호 매트릭스회로
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 본 발명의 일실시예에 의한 크로마신호처리회로의 구성도, 제2A도 및 제2B도는 각각 본 발명에 이용된 컬러필터어레이패턴의 설명도, 제3A도 및 제3B도는 각각 본 발명에 이용된 컬러필처어레이패턴의 설명도, 제4A도 및 제4B도는 각각 본 발명에 이용된 컬러필터어레이패턴의 다른 예의 설명도, 제5A도 및 제5B도는 각각 본 발명에 이용된 컬러필터어레이패턴의 또 다른 예의 설명도, 제6도는 원색신호 RR, GR, GB의 종방향주파수 1/2Py에서 생성된 상수 a - d와 샘플링캐리어레벨과의 관계를 설명하는 특성도.

Claims (5)

  1. 모든 화소의 영상정보를 분리하여 독출할 수 있는 고체촬상기와, 2개의 화소또는 컬러필터가 종방향 및 횡방향으로 반복 형성되는 기본격자를 가지며, 동일한 스펙트럼감도특성을 갖는 2개의 화소 또는 컬러필터가 이 단위격자내에 형성되는 컬러어레이패턴을 가지고, 상기 고체촬상기에 배설된 컬러필터어레이를 구비한 싱글칩 컬러카메라용 크로마신호처리회로에 있어서, 2개의 원색신호와 2종류로 된 하나의 원색신호를 생성하기 위해 상기 고체촬상기의 출력신호로부터 얻어지는 상기 단위격자의 4화소의 각 크로마신호중, 소정의 비율로 동일한 스텍트럼감도특성을 갖는 2화소의 각 크로마신호를 가산함으로써 형성되는 제1크로마신호와, 그외의 제2 및 제3크로마신호를 처리하는 제1산출수단과, 2개의 색차신호를 생성하기 위해 상기 각 제2개의 원색신호와, 상기 2종류로 된 하나의 원색신호를 처리하는 제2산출수단과, 종방향공간주파수에서 생성된 샘프링캐리어레벨이 상기 2개의 색차신호에서 최소로 되도록 상기 소정의 비율을 제어하는 제어수단으로 이루어지는 것을 특징으로 하는 싱글칩 컬러카메라용 크로마신호 처리신호.
  2. 제1항에 있어서, 상기 제1, 제2 및 제3크로마신호는 각각 Ye신호 Mg신호 및 Cy신호인 것을 특징으로 하는 싱글칩 컬러카메라용 크로마신호 처리회로.
  3. 제2항에 있어서, 상기 2개의 원색신호는 RR신호와, BB신호이고, 상기 2종류로 된 하나의 원색신호는 GR신호와 GB신호인 것을 특징으로 하는 싱글칩 컬러카메라용 크로마신호처리회로.
  4. 제3항에 있어서, 상기 2개의 색차신호는 각각 (R - Y)신호와, (B - Y)신호인 것을 특징으로 하는 싱글칩 컬러카메라용 크로마신호처리회로.
  5. 제1항에 있어서, 상기 제어수단은 광원의 색온도변화에 응답하여 상기 비율을 제어하는 것을 특징으로 하는 싱글칩 컬러카메라용 크로마신호처리회로.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019920000174A 1991-01-11 1992-01-09 컬러 ccd카메라용 크로마신호 매트릭스회로 KR920015935A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP01374691A JP3489118B2 (ja) 1991-01-11 1991-01-11 単板カラーカメラ及びその色信号処理回路
JP91-013746 1991-01-11

Publications (1)

Publication Number Publication Date
KR920015935A true KR920015935A (ko) 1992-08-27

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KR1019920000174A KR920015935A (ko) 1991-01-11 1992-01-09 컬러 ccd카메라용 크로마신호 매트릭스회로

Country Status (5)

Country Link
US (1) US5282025A (ko)
EP (1) EP0494677B1 (ko)
JP (1) JP3489118B2 (ko)
KR (1) KR920015935A (ko)
DE (1) DE69221909T2 (ko)

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US5901257A (en) * 1996-05-03 1999-05-04 Omnivision Technologies, Inc. Single chip color MOS image sensor with two line reading structure and improved color filter pattern
US6289139B1 (en) 1996-05-03 2001-09-11 Omnivision Technologies, Inc. Single chip color CMOS image sensor with two or more line reading structure
US6035077A (en) * 1996-05-03 2000-03-07 Omnivision Technologies, Inc. Single-chip color CMOS image sensor with two or more line reading structure and high-sensitivity interlace color structure
US6167469A (en) 1998-05-18 2000-12-26 Agilent Technologies, Inc. Digital camera having display device for displaying graphical representation of user input and method for transporting the selected digital images thereof
US6665009B1 (en) 1998-05-20 2003-12-16 Omnivision Technologies, Inc. On-chip dead pixel correction in a CMOS imaging sensor
US6914627B1 (en) 1998-05-27 2005-07-05 Omnivision Technologies, Inc. Method and apparatus for digital column fixed pattern noise canceling for a CMOS image sensor
US6593963B1 (en) 1998-05-29 2003-07-15 Agilent Technologies, Inc. Programmable control of operational signals in a digital camera
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US6642956B1 (en) * 1998-05-29 2003-11-04 Agilent Technologies, Inc. Digital image processor for a digital camera
US8790118B2 (en) * 1998-11-03 2014-07-29 Shade Analyzing Technologies, Inc. Interactive dental restorative network
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US7341450B2 (en) * 2003-10-03 2008-03-11 Shade Analyzing Technologies, Inc. Tooth shade scan system and method
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Also Published As

Publication number Publication date
EP0494677A3 (en) 1992-09-30
EP0494677A2 (en) 1992-07-15
JP3489118B2 (ja) 2004-01-19
JPH077737A (ja) 1995-01-10
EP0494677B1 (en) 1997-09-03
DE69221909T2 (de) 1998-04-02
DE69221909D1 (de) 1997-10-09
US5282025A (en) 1994-01-25

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