基于改进物元法的人体面部皮肤状态综合评价

An improved matter-element comprehensive evaluation of human facial skin condition based on improving the matter-element method

研究了客观、全面地评价人体面部皮肤状态的方法。为解决目前来源于多个指标的皮肤数据的信息冲突和专家评价标准一致性不佳的问题,结合皮肤状态等级划分的区域特性,提出依据应用调整最佳点位置,对物元法关联函数中的距计算公式进行改进。之后考虑各指标权重在综合评价算法中的重要程度不同,采用层次分析和熵权这两种主客观赋权算法进行优化融合,建立了对人体面部皮肤状态具有较好评价效果的模型。最后,以10名研究对象为例进行实证测试,结果表明相较于经典物元评价模型,改进模型不仅基于的评价标准固定且其评价结果与专家意见具有更高的一致性,二者的吻合度达到了90%。可见,该方法能有效地结合皮肤多指标的实际分布特性进行系统的综合评价,为后续评价算法替代专家进行皮肤诊疗提供了理论支撑。

A method for objective and effective evaluation of human facial skin condition is studied. In order to solve the key problems of information conflict and strong subjectivity in multi index comprehensive evaluation of skin condition,the weight of each index is obtained through the integrated optimization of the entropy weight method and the analytic hierarchy process based on the skin evaluation index system,and then with the combination with the index characteristics,this study presents an improved matter element method for distance calculation according to the application dynamic adjustment of the optimal point location to establish the model of human facial skin condition with good evaluation results. 10 people are exemplified as case studies. The result shows that compared with the classic matter-element evaluation model,the improved matter-element model has the better consistency with the expert opinion,and the alignment of the two is up to 90%. It proves that the optimal point location selected by the improved model is more accordance with the actual distribution of skin parameters,and the improved model is better in realizing the integration of subjective and objective information for better evaluation of human facial skin condition.