Acta Photonica Sinica, Volume. 52, Issue 2, 0212003(2023)
Two Step Phase-shifting Interferometry by Least Squares Iterative Optimization
Figures & Tables(11)
Fig. 2. Simulated two-frame phase-shifted interferograms and the reference phase
Fig. 6. Experiment for the phase reconstruction using open interferogram
Fig. 7. Experiment for the phase reconstruction using closed interferogram
Fig. 8. Experiment for the phase reconstruction using the complex interferogram
Table 1. The RMS error of phase（dB）
View tableView in ArticleTable 1. The RMS error of phase（dB）
The proposed method The PCA&LSI method The CV method 0.073 0.100 0.24 0.055 0.089 0.17 0.059 0.091 0.19
Table 2. The RMS error（dB）
View tableView in ArticleTable 2. The RMS error（dB）
SNR/dB The proposed method The PCA&LSI method The CV method 35 0.057 0.090 0.19 50 0.017 0.071 0.17 70 0.014 0.071 0.18
Table 3. Processing time（s）
View tableView in ArticleTable 3. Processing time（s）
The proposed method The PCA&LSI method The CV method Open fringe pattern 0.035 0.21 3.10 Closed fringe pattern 0.140 0.60 6.96 Complex fringe pattern 0.069 0.34 2.15
Tools
Get Citation
Copy Citation Text
Chang LIU, Hubing DU, Leijie FENG, Xingxu YAN, Gaopeng ZHANG. Two Step Phase-shifting Interferometry by Least Squares Iterative Optimization[J]. Acta Photonica Sinica, 2023, 52(2): 0212003
Paper Information
Category: Instrumentation, Measurement and Metrology
Received: Sep. 8, 2022
Accepted: Oct. 10, 2022
Published Online: Mar. 28, 2023
The Author Email: Hubing DU (duhubing@xatu.edu.cn), Gaopeng ZHANG (zhanggaopeng@opt.ac.cn)
© Copyright 2018-2021 | Chinese Laser Press.
All Rights Reserved 沪ICP备15018463号-20