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首页> 外文会议>5th Kuala Lumpur international conference on biomedical engineering 2011 >A Modified Beer-Lambert Model of Skin Diffuse Reflectance for the Determination of Melanin Pigments
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A Modified Beer-Lambert Model of Skin Diffuse Reflectance for the Determination of Melanin Pigments

机译：皮肤漫反射率的改良Beer-Lambert模型用于测定黑色素色素

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In skin care industry and dermatology, analysis of human skin tone is an important parameter for evaluating the current condition of the skin. Research has shown that the human skin tones are due to the combination of skin chromo-phores (pigments) such as melanin, haemoglobin, bilirubin and beta-carotene. Several works on skin modelling have been reported but none has been specifically developed to classify and measure types of melanin. In this research, the spectral responses of different human skin phototypes are investigated for melanin pigment (pheomelanin and eumelanin) analysis. We propose skin pigmentation model based on a modified Beer-Lambert model of skin diffuse reflectance to measure types of melanin. A clinical study involving 118 participants with different skin phototypes (SPTs) is conducted where the skin reflectance data of participants are measured using Spec-trophotometer Konica Minolta 2600c. Applying the data to the proposed skin model, it was found the pheomelanin concentration is -4.6E5+ 5.4E-6 moles/l for SPT III, -5.9E-5±6.4E-6 moles/l for SPT IV, and -8.2E-5±9.8E-6moles/l for SPT V and the eumelanin concentration is 9.7E-5±7.3E-6 moles/l for SPT III, 1.2E-4±1.03E-5 moles/l for SPT IV, and 1.6E-4±1.7E-5 moles/l for SPT V. Results show that proposed model can be used for pigmentation analysis to measure melanin pigments types in skin.
机译：在皮肤护理行业和皮肤病学中，人体肤色分析是评估皮肤当前状况的重要参数。研究表明，人的肤色是由于黑色素，血红蛋白，胆红素和β-胡萝卜素等皮肤染色体（色素）的结合所致。据报道有几篇关于皮肤模型的著作，但没有专门针对黑色素的类型进行分类和测量。在这项研究中，研究了不同人类皮肤光型的光谱响应，以进行黑色素色素（pheomelanin和eumelanin）分析。我们提出了基于皮肤漫反射率的改良Beer-Lambert模型的皮肤色素沉着模型，以测量黑色素的类型。进行了一项涉及118位不同皮肤光型（SPT）参与者的临床研究，其中使用分光光度计Konica Minolta 2600c测量了参与者的皮肤反射率数据。将数据应用于拟议的皮肤模型，发现苯丙氨酸甲酯浓度对于SPT III为-4.6E5 + 5.4E-6摩尔/ l，对于SPT IV为-5.9E-5±6.4E-6摩尔/ l，和-8.2对于SPT V，E-5±9.8E-6摩尔/升，对于SPT III，其Eumelanin浓度为9.7E-5±7.3E-6摩尔/升，对于SPT IV为1.2E-4±1.03E-5摩尔/升， SPT V为1.6E-4±1.7E-5摩尔/升。结果表明，该模型可用于色素沉着分析，以测量皮肤中黑色素的类型。

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