基于结构色的SEM图像特征分析及其等效折射率计算方法研究  

Study on SEM image feature analysis and equivalent refractive index calculation method based on structure color

作　　者：王晓霞 王芬[1] 苟紫鹃[1] 何立凤 WANG Xiao-xia;WANG Fen;GOU Zi-juan;HE Li-feng(School of Materials Science and Engineering,Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials,Shaanxi University of Science&Technology,Xi'an 710021,China;School of Electrical Information and Artificial Intelligence,Shaanxi University of Science&Technology,Xi'an 710021,China)

机构地区：[1]陕西科技大学材料科学与工程学院陕西省无机材料绿色制备与功能化重点实验室,陕西西安710021 [2]陕西科技大学电子信息与人工智能学院,陕西西安710021

出　　处：《陕西科技大学学报》2019年第5期131-135,145,共6页Journal of Shaanxi University of Science & Technology

基　　金：国家自然科学基金项目(51472153,61603234);陕西省科技厅科技计划项目(2017NY-124)

摘　　要：获取精确等效折射率对研究胶粒结构呈色具有重要意义.在此目的下,本文提出了一种研究扫描电镜(SEM)二维图像中各胶粒微观形态的特征计算方法.通过标记并统计不同胶粒的图像面积比,来计算SEM图像中各不同成分对象对应的填充率,最后计算出等效折射率.将已有文献中类似物质的等效折射率数据和本方法求出的等效折射率作对比,发现本方法计算的聚苯乙烯薄膜有效折射率随烧制温度变化而引起的变化范围在1.42~1.46之间,而文献中等效折射率一般采用固定值1.46;此外,结合结构呈色实验数据进行分析计算,发现结构呈色实验值与本方法计算值更接近,说明本方法技术手段可行.It is of great significance to obtain the exact equivalent refractive index for studying the coloration of colloidal structure.Under this purpose,a new method is proposed to study the microscopic morphology of the various colloidal particles in the SEM two-dimensional image,to mark and calculate the image area ratio of different colloidal particles,and to calculate the corresponding filling rate of different component objects in the SEM image.Then calculate the equivalent refractive index.By comparing the equivalent refractive index data of similar substances in the literature and the data solved in the method,the effective refractive index of polystyrene thin films calculated by this method varies from 1.42 to 1.46 with the temperature change of firing.The medium effective refractive index in the literature generally uses a fixed value of 1.46,and combined with the experimental color analysis data,the structure color test value is closer to the calculated value,indicating that this method is technically feasible.

关 键 词：微观结构SEM图像 胶粒图像面积比 等效折射率 结构呈色 

分 类 号：O766.1[理学—晶体学]