Transactions on Electrical and Electronic Materials

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Color Correction in Portable-type Urine Analyzer

  • Kim, Jae-Hyung (Department of Physics, Inje university) ;
  • Park, Chang-Hee (Department of Physics, Inje university) ;
  • Lee, Seung-Jin (Institute of Medical Development, SEAN Imagination Technology Co., Ltd.) ;
  • Jeon, Gye-Rok (Department of Biomedical Engineering, College of Medicine, Pusan National University) ;
  • Kim, Gi-Ryon (Department of Biomedical Engineering, College of Medicine, Pusan National University)
  • Published : 2002.12.01
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Abstract

Color correction methods of chromaticity coordinates using Color Matching Function (CMF) were studied to develop a device-independent portable-type urine analyzer. The reflection spectra were measured for the degrees of 10 test items of the urine reagent strip (urine strip) to develop a portable-type urine analyzer. A computer simulation was performed to quantitatively distinguish the color reactions of the urine system, by using the spectral power distribution of Light Emitting Diode(LED), the reflection of a urine strip, and spectral sensitivity of a photodiode. To develop a device-independent system, chromaticity coordinates were modified to reduce the color deviations in the urine strip, by using the temperature compensation of LED and the color transformation by CMF. The experimental values obtained by developed urine system exhibited the accuracy above 95% for all color samples.

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References

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