摘要
数字散斑干涉技术可以用来测量物体的微小形变及位移,因其具有较高的精度和全场非接触测量的特点,它被广泛的应用于工业检测、航空航天和生物医学等领域。在该技术中干涉条纹的处理以及相位值的获取是至关重要的。本文介绍了数字散斑干涉技术中条纹处理的各种方法,包括增强、滤波、二值化和骨架线提取等,同时介绍了利用相移技术精确地计算相位值的方法,相移技术大大提高了测量的精度。
The digital speckle pattern interferometry can be used to measure the micro deformation and displacement of an object.It is applied widely in industry test,aeronautics and astronautics,biomedicine and so on.In this technology,the processing of interferometry fringes and the value of phases are very important.This paper describes kinds of methods to process the fringe,including enhancement,filtering,binarization,skeleton extraction and so on.Meanwhile,the technology of phase shifting is introduced to calculate the value of phase precisely.The phase shifting techniques greatly improve the precision of measurement.
出处
《工具技术》
2011年第5期91-94,共4页
Tool Engineering
基金
国家自然科学基金项目(51075116)
安徽省自然科学基金项目(090414158)
关键词
增强
滤波
二值化
骨架线
相移
enhancement
filtering
binarization
skeleton
phase shifting
