Laser & Optoelectronics Progress, Volume. 55, Issue 10, 101203(2018)
Fiber-Optic Interferometer Projection Based on Spatial-Temporal Fringes for Three-Dimensional Surface Measurement Technique
The phase extraction technique based on the traditional spatial-temporal fringe pattern method is studied, which is perfected by correcting the phase-shift of the phase-shift fringer pattern with a linear carrier frequency. This technique is also applied to the fiber-optic interferometer projection for three-dimensional surface measurements. Compared with the traditional four-step phase-shifting method, overlapping averaging four-frame algorithm, and the advanced iterative algorithm, the phase extraction technique based on the spatial-temporal fringe pattern method can effectively suppress the phase-shifting error caused by phase-shifting inaccuracy of the phase-shifter in the fiber-optic interference fringe projection device and environmental factors. Further, it can eliminate the high-frequency noise caused by factors, including stray light.
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Li Haoyu, Zhu Ronggang, He Yong. Fiber-Optic Interferometer Projection Based on Spatial-Temporal Fringes for Three-Dimensional Surface Measurement Technique[J]. Laser & Optoelectronics Progress, 2018, 55(10): 101203
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Received: Apr. 17, 2018
Accepted: --
Published Online: Oct. 14, 2018
The Author Email: Yong He (heyong@mail.njust.edu.cn)