Phase extraction based on iteration algorithm with crossed fringes in phase measuring deflectometry
Phase extraction based on iteration algorithm with crossed fringes in phase measuring deflectometry
复制标题
相位测量偏转中基于交叉条纹迭代算法的相位提取
DOI：
10.1117/12.2285165
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发表时间：
2017-10
期刊：
影响因子：
--
通讯作者：
Zhao Xiong
中科院分区：
文献类型：
--
作者：
Chengying Jin;Dahai Li;Kewei E;Mengyang Li;Pengyu Chen;Ruiyang Wang;Zhao Xiong
在相位测量偏折术中，两个正交的正弦条纹图案分别投影在测试表面上，并记录被表面反射的畸变条纹，每个条纹具有顺序的相移。然后通过三角剖分得到局部表面梯度的两个分量。为了避免复杂的相位提取过程（正交条纹投影、精确相移），提出了一种新的正交条纹相位提取算法。它是基于最小二乘迭代过程。数值仿真和初步实验验证了该算法的有效性和性能。给出了实验结果，并将实验结果与传统相移算法和Fizeau干涉仪测量结果进行了比较。
In phase measuring deflectometry, two orthogonal sinusoidal fringe patterns are separately projected on the test surface and the distorted fringes reflected by the surface are recorded, each with a sequential phase shift. Then the two components of the local surface gradients are obtained by triangulation. It usually involves some complicated and time-consuming procedures (fringe projection in the orthogonal directions, accurate phase shifting).To avoid the complex process, a novel phase extraction algorithm with crossed fringes is presented in this paper. It is based on a least-squares iterative process. Both a numerical simulation and a preliminary experiment are conducted to verify the validity and performance of this algorithm. Experimental results obtained by our method are shown, and comparisons between our experimental results and those obtained by the traditional phase-shifting algorithm and between our experimental results and those measured by the Fizeau interferometer are made.
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影响因子：
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影响因子：
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作者：
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DOI：
10.1117/12.2020721
发表时间：
2013-05
期刊：
--
影响因子：
--
作者：
P. Su;M. Khreishi;R. Huang;T. Su;J. Burge
通讯作者：
P. Su;M. Khreishi;R. Huang;T. Su;J. Burge