摘要
莫尔条纹具有放大的作用,而无衍射光在长距离内有恒稳定的特点,将两者结合能实现大范围的几何量精密测量。在介绍无衍射光莫尔条纹的基础上,分析莫尔条纹数与两束无衍射光的中心光斑距离的关系,采用高斯低通滤波器后再进行二值化,得到莫尔条纹清晰的图像,然后统计一周内图像灰度值变化的次数,得到莫尔条纹数。本研究对无衍射光在精密测量中的应用具有借鉴意义。
A method of counting the moire fringes of non-diffacting beams was presented in this paper. Be cause the moire fringes have a function of magnifying and the non-diffacting beams have a characteristics of stablity in long distance, it could achieve the precision measurement of geometry in extensiveness. On the basis of introducing the moire fringes of non-diffactings, this paper analyzed the relationship between the
出处
《湖北工业大学学报》
2015年第4期1-4,共4页
Journal of Hubei University of Technology
基金
国家自然科学基金(51405143)
关键词
无衍射光
莫尔条纹
图像处理
莫尔条纹计数
non-diffracting beam
Moire fringe
image processing
moire fringes counting
