四川大学学报（自然科学版）2012，Vol.49Issue(1)：102-108,7.DOI:10.3969/j.issn.0490-6756.2012.01.017
时间相位展开的误差分析与算法设计
Error analysis and algorithm design of temporal phase unwrapping
摘要
Abstract
Temporal phase unwrapping method projects grating fringes with different pitches, the phase unwrapping process is then carried out for each pixel along the time axis independently, so as to avoid the error spreading, and has been developed well in recent years. This article researches and analyses on time efficiency, reliability and accuracy of phase unwrapping methods, compares above aspects of three typical temporal phase unwrapping methods; Fitting negative exponential, three pitches unwrapping and heterodyne method. According to the charateristics of those methods, we present a new algorithm dis-ignment that combines the advantages of three pitches unwrapping and heterodyne method-three pitches heterodyne method. It is shown in computer simulation and experiment results that using only three grating fringes, the new method still has high reliability and accuracy, so it has a broad application prospect.关键词
相位展开/时间相位展开/三维传感/三频外差法Key words
phase unwrapping/temporal phase unwrapping/3D sensing/three pitches heterodyne method分类
数理科学引用本文复制引用
李璐璐,苏显渝,窦蕴甫,陈锋..时间相位展开的误差分析与算法设计[J].四川大学学报（自然科学版）,2012,49(1):102-108,7.基金项目
国家自然科学基金(60838002) （60838002）
