The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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Estimation of the Light Intensity by Using Bright-Chip LED Sensory System

고휘도 발광 Chip 소자를 이용한 빛의 명암도 분석

  • Choi, Ju-Hyeon (Dept. of Biomedical Engineering, Konkuk University) ;
  • Kim, Ji-Sun (Dept. of Biomedical Engineering, Konkuk University) ;
  • Jung, Gu-In (Dept. of Biomedical Engineering, Konkuk University) ;
  • Lee, Tae-Hee (Dept. of Biomedical Engineering, Konkuk University) ;
  • Kim, A-Hee (Dept. of Biomedical Engineering, Konkuk University) ;
  • Oh, Han-Byeol (Dept. of Biomedical Engineering, Konkuk University) ;
  • Park, Hee-Jung (Dept. of Biomedical Engineering, Konkuk University) ;
  • Kim, Kyung-Seop (Dept. of Biomedical Engineering, Konkuk University) ;
  • Jun, Jae-Hoon (Dept. of Biomedical Engineering, Konkuk University)
  • Received : 2013.05.31
  • Accepted : 2013.07.05
  • Published : 2013.09.01
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Abstract

The light intensity which represents the relative amount of brightness and darkness is very important feature to discern the color hue and its relevant information. With this aim, we devise a new optical system and method to analyze the light intensity. Our suggested system including a phototransistor and white-high-brightness chip light-emitting diode intend estimate the contrast value utilizing Image Research Institute(I.R.I.) Hue & Tone samples which includes 120 color sheets arranged by the color hue and tone. As a result, we confirmed that the brightness of the color checker can be accurately estimated by a high-brightness light-emitting-diode optical system.

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References

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