通过皮肤图像角点密度和皮沟面积判断皮肤发育的研究

Evaluating skin development based on corner density and rimae cutis area in skin image

目的:通过筛选人体皮肤的部分纹理参数,探索皮肤发育老化的规律。方法:用数码显微镜采集健康人群前臂内侧中间部位皮肤的放大图像,通过数字图像处理技术提取皮肤纹理角点密度和皮沟面积2个参数,采用相关性、差异性以及回归分析方法分析其随年龄增长的发育规律。结果:实验数据表明,男女性均存在皮沟面积随年龄的增长而增加的现象(男性:r=0.950,P=0.000,女性:r=0.960,P=0.000);而男女性的皮肤纹理角点密度随年龄的增长而减小(男性:r=-0.958,P=0.000,女性:r=-0.969,P=0.000)。结论:通过对皮肤纹理角点密度和皮沟面积的定量分析,揭示了皮肤纹理部分参数的生理发育和老化规律,有利于美容效果的评价,为皮肤修复、皮肤美容、皮肤保养等提供定量数据支撑,同时在法医学领域提供一种新的年龄鉴定方法。

Objective ：To probe into rule of skin development and aging by extracting comer density and rimae cutis area in skin im- age. Methods：The amplificatory skin images on the middle of inner forearm of healthy people were collected by digital microscope High technologies of image processing including image segmen- tation and corner detection were applied to extract quantitative data of the two parameters. Skin texture development rules were analyzed by using statistics methods of correlation analysis, variance analysis and regression analysis. Results：The experi- ment data showed that the area of rimae cutis increased with age （ male ： r=0.950, P=0.000, female ： r=0.960, P=0.000）. The density of corner in skin image was decreased with age （ male ： r=-0.958, P=-0.000;female：r=-0.969,P=-0.000）. Conclusion：The method of this paper is effective in exploring the skin texture development rule. The research helps to assess the effect of cosmetic objectively and improve cosmetic operations with quantify data. The research also can be applied to forensic aging identification.