Fast phase unwrapping algorithm for interferometric applications
Fast phase unwrapping algorithm for interferometric applications
复制标题
DOI：
10.1364/ol.28.001194
复制
发表时间：
2003-07-15
期刊：
影响因子：
3.6
通讯作者：
Zhu, YM
中科院分区：
文献类型：
--
作者：
Schofield, MA;Zhu, YM
广泛的干涉测量技术恢复在区间（-pi, pi）上被数学包裹的相位信息。获得真正的解包裹阶段是一个长期存在的问题。我们提出了一种解决相位展开问题的算法，使用傅立叶技术的组合。我们算法的执行时间相当于执行八次快速傅立叶变换所需的计算时间，并且对包裹相位中存在的噪声和残留物是稳定的。我们扩展了该算法来处理任意大小的数据。我们希望现有干涉测量应用的最新技术，包括实时相位恢复的可能性，能够从我们的算法中受益。(C) 2003年美国光学学会。
A wide range of interferometric techniques recover phase information that is mathematically wrapped on the interval (-pi, pi]. Obtaining the true unwrapped phase is a longstanding problem. We present an algorithm that solves the phase unwrapping problem, using a combination of Fourier techniques. The execution time for our algorithm is equivalent to the computation time required for performing eight fast Fourier transforms and is stable against noise and residues present in the wrapped phase. We have extended the algorithm to handle data of arbitrary size. We expect the state of the art of existing interferometric applications, including the possibility for real-time phase recovery, to benefit from our algorithm. (C) 2003 Optical Society of America.