Boundary-aware single fringe pattern demodulation
Boundary-aware single fringe pattern demodulation
复制标题
边界感知单条纹图案解调
DOI：
10.1364/oe.25.032669
复制
发表时间：
2017-12
期刊：
影响因子：
3.8
通讯作者：
Kemao Qian
中科院分区：
文献类型：
--
作者：
Wang Haixia;Kemao Qian
光学干涉测量技术具有非接触、高精度、全场测量等优点，在各个研究和应用领域都具有很大的吸引力。在测量快速现象时，往往需要对单个条纹图进行处理。然而，在相位恢复中遇到了一些困难，其中条纹图案的不连续性问题是具有挑战性的，并且由于制造件的日益复杂而需要注意。在本文中，我们提出了一个完整的流程图不连续单条纹处理，它使用分割作为通用的预处理所有不连续条纹图案的问题。在流程图中，我们还提出了一种系统的方法，通过掩蔽函数将边界感知引入解调方法中，以提高解调精度，并通过一种新的复合质量图来提高解调鲁棒性。据我们所知，这是第一次提出一个完整的解决方案，为单一和不连续的条纹图案处理。三个典型的解调方法，频率引导的正则化相位跟踪器与二次相位匹配，窗口傅立叶脊，和螺旋相位正交变换，被用来演示如何解调方法可以使边界感知。所提出的方法被验证成功的解调结果从模拟和实验条纹。
Optical interferometric techniques offer non-contact, high accuracy and full field measurements, which are very attractive in various research and application fields. Single fringe pattern processing is often needed when measuring fast phenomenon. However, several difficulties are encountered in phase retrieval, among which the discontinuity problem of the fringe pattern is challenging and requires attention due to the increasing complexity of manufactured pieces. In this paper, we propose a complete flowchart for discontinuous single fringe pattern processing, which uses segmentation as universal pre-processing for all discontinuous fringe pattern problems. Within the flowchart, we also propose a systematic way to introduce boundary-awareness into demodulation methods by a masking function to improve demodulation accuracy and a quality-guided scanning strategy with a novel composite quality map to improve demodulation robustness. To the best of our knowledge, this is the first time a complete solution is proposed for single and discontinuous fringe pattern processing. Three typical demodulation methods, the frequency-guided regularized phase tracker with quadratic phase matching, the windowed Fourier ridges, and the spiral phase quadrature transform, are used to demonstrate how demodulation methods can be made boundary-aware. The proposed methods are verified by successful demodulation results from both simulated and experimental fringe patterns.