JSTS:Journal of Semiconductor Technology and Science

  • 제6권4호
  • /
  • Pages.270-274
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  • 2006
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  • 1598-1657(pISSN)
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  • 2233-4866(eISSN)
대한전자공학회 (The Institute of Electronics and Information Engineers)
권호 표지

A Pseudo Multiple Capture CMOS Image Sensor with RWB Color Filter Array

  • Park, Ju-Seop (Department of Electrical and Electronic Engineering Yonsei University) ;
  • Choe, Kun-Il (Department of Electrical and Electronic Engineering Yonsei University) ;
  • Cheon, Ji-Min (Department of Electrical and Electronic Engineering Yonsei University) ;
  • Han, Gun-Hee (Department of Electrical and Electronic Engineering Yonsei University)
  • 발행 : 2006.12.31
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초록

A color filter array (CFA) helps a single electrical image sensor to recognize color images. The Red-Green-Blue (RGB) Bayer CFA is commonly used, but the amount of the light which arrives at the photodiode is attenuated with this CFA. Red-White-Blue (RWB) CFA increases the amount of the light which arrives at photodiode by using White (W) pixels instead of Green (G) pixels. However, white pixels are saturated earlier than red and blue pixels. The pseudo multiple capture scheme and the corresponding RWB CFA were proposed to overcome the early saturation problem of W pixels. The prototype CMOS image sensor (CIS) was fabricated with $0.35-{\mu}m$ CMOS process. The proposed CIS solves the early saturation problem of W pixels and increases the dynamic range.

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참고문헌

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