绝对相位展开方法研究  

Study on absolute phase-unwrapping method

作　　者：陈永权[1] 赵建科[1] 袁湘兰[1] 郑中林[1] 

机构地区：[1]中国科学院西安光学精密机械研究所,陕西西安710119

出　　处：《红外与激光工程》2008年第S1期23-25,共3页Infrared and Laser Engineering

摘　　要：提出一种新光学三维传感方法。该方法通过投影多组周期不同的正弦光栅条纹到被测物体表面,通过相移算法,反解各组投影条纹的截断相位,并采用所提绝对相位展开方法,对截断相位进行了解调,实现了对物体表面的测量。与双频光栅投影测量方法及传统时间相位展开方法相比,该方法投影条纹组数灵活、测量效率高,实验证明该方法的适用性。A novel 3D optical sensing method is proposed. The wrapped phase distribution of the measured object is obtained by projecting several different periodic sinusoidal grating fringes onto the measured object and through the appropriate phase-shifting algorithm in this method .The wrapped phase is unwrapped by using the absolute phase-unwrapping method, then the surface object is measured. Comparing with the twin-frequency grating projecting method and the traditional temporal phase-unwrapping method, the numb...

关 键 词：光学三维传感 相移算法 绝对相位展 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]