皮肤光谱特性分析及诊断方法研究

Study on the Method of Skin′s Spectral Analysis and Diagnosis

本文介绍了一种光纤探头式皮肤反射光谱检测系统的结构。该系统采用精密光栅分光系统和CCD光电接收器件 ,能够快速检测皮肤反射光谱。依据皮肤反射光谱的特征和色度学原理 ,提出表示皮肤颜色的方法 ,给出了三刺激值和色差的计算公式以及病变皮肤表面颜色的区分界限。在分析了皮肤表面颜色和反射光谱曲线的基础上 ,提出实现客观自动识别病变皮肤的对策。通过比较病变皮肤与正常皮肤的反射光谱和色差 ,实现某些皮肤病的分析和诊断。利用此系统对典型皮肤病例的反射光谱进行测试分析实验 ,取得了较好的效果。

A kind of systematic structure to test skin color with optic-fiber probe is introduced. The system can be used to measure skin's reflecting spectrum by using a grating instrument system and a linear CCD sensor. According to the color theory and skin's reflecting spectrum, the formulae for calculating skin's color tri-stimulus value and chromatic error and the identified area of diseased skin's color are given. By measuring skin's surface color and reflecting spectral curve, a way to distinguish its feature, automatically and objectively, is offered. Some skin disease auto-diagnosis can be realized, comparing the reflecting spectrum and chromatic aberration of malignant skin with those of healthy skin. Good results were achieved by using this system to analyze and diagnose skin disease.