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Implementation on the Urine Analysis System using Color Correction and Chromaticity Coordinates Transform Methods  

김기련 (부산대학교 대학원 의공학협동과정)
예수영 (부산대학교 대학원 의공학협동과정)
손정만 (부산대학교 대학원 의공학협동과정)
김철한 (부산대학교 대학원 의공학협동과정)
정도운 (부산대학교 대학원 의공학협동과정)
이승진 (세안아이티(주) 의료정보공학연구실)
장용훈 (동주대학 네트워크 전자계열)
전계록 (부산대학교 의과대학 의공학교실)
Publication Information
Journal of Biomedical Engineering Research / v.24, no.3, 2003 , pp. 183-192 More about this Journal
Abstract
A transformation methode of the chromaticity coordinates was proposed to calibrate the measured data obtained by a urine analysis system which implemented in our previous study. Generally. the reacted color of a reagent strip by urine analysis system often exhibit the color distortions due to nonlinear characteristics of the various devices that is the optic module mechanism. hardware, and surround circumstance. A color correction method for minimizing the color distortion play a few role in maintaining high accuracy and reproduction of the urine analysis system. In this work, we used the compensation method such as the shading correction, the characteristic curve extraction of RGB color by means of third order spline interpolation, and linear transformation using a reference color. In addition, 1931 CIE XYZ color space was used to compensate the color of the measured data by a standard reference system as colorimeter. A compensation matrix was obtained so that the output values of the urine analysis system is nearly equal to that of a standard reference system for identical color sample. Color correction obtained by a urine analysis system which implemented in our previous study exhibited a good color accuracy when it was compared with the reference data. Observed result from an experiments on ten items or a urinalysis strip that color difference or between two urine analysis system was 1.28.
Keywords
Urine analysis system; Color correction; Device characterization;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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