基于时间相位展开算法的相位测量轮廓术  

Application of temporal phase unwrapping method in phase measurement profilometry

作　　者：欧阳京[1] 吕乃光[1] 吴迪[1] 

机构地区：[1]北京机械工业学院电子信息工程系,北京100085

出　　处：《北京机械工业学院学报》2007年第1期1-4,22,共5页Journal of Beijing Institute of Machinery

基　　金：国家自然科学基金资助项目(50475176);北京市自然科学基金北京市教委科技发展计划重点项目(KZ200511232019);北京市重点实验室(机电系统测控)开放课题(030321)

摘　　要：为了拓广结构光测量技术的应用领域,克服被测物体表面不连续变化的情况,对传统的PMP测量进行了改进,对时间相位展开算法与空间相位展开算法进行了比较,并通过试验结果证明了时间相位展开的优越性。试验中测量范围为400 mm×400 mm×200 mm,被测物体选择了平面、圆柱和鼠标3种。试验中借助图像处理技术,提高了测量的精度。测量系统仍处于试验阶段,在系统结构标定方面的精度还有待提高。For the sake of extending the application of technique of structure light measurement and overcoming the discontinuity on the objects measured by PMP,the classical PMP method is improved in the paper. Temporal phase unwrapping algorithm is used to unwrap the phase. This method is compared with space phase unwrapping algorithm then. The results of experiments prove the advantage of temporal phase unwrapping algorithm. The range of measurement is 400 mm × 400 mm × 200 mm space. Three different objects are chosen for measurement experiment including a plane, a column and a mouse. For improving precision of measurement, image process technology is applied in the experiment. Since the system of measurement is at experimental stage, the precision in system parameters calibration still remains to be improved.

关 键 词：相位测量轮廓术 时间相位展开 三维面形 

分 类 号：TH744.9[机械工程—光学工程]