Improved Dual-Frequency On-Line Phase Measuring Profilometry Based on Full-Cycle Equal Phase-Shift Algorithm

被引：0
|
作者：
Peng K. [1 ]
Cao Y. [2 ]
Wu Y. [3 ]
机构：
[1] Hubei Key Laboratory of Ferro & Piezoelectric Materials and Devices, Faculty of Physics & Electronic Sciences, Hubei University, Wuhan, 430062, Hubei
[2] Department of Opto-Electronics, Sichuan University, Chengdu, 610064, Sichuan
[3] School of Electronic and Information Engineering, Taiyuan University of Science and Technology, Taiyuan, 030024, Shanxi
来源：
Guangxue Xuebao/Acta Optica Sinica | 2019年 / 39卷 / 04期
关键词：
Composite fringe; Full-cycle equal phase-shift algorithm; Measurement; Pixel matching; Three dimensional measurement;
D O I：
10.3788/AOS201939.0412012
中图分类号：
学科分类号：
摘要：
Based on the relative position relationship between the measured object and the high-frequency fringe in the on-line three-dimensional (3D) measurement, an improved dual-frequency on-line 3D measurement method is proposed. By controlling the acquisition points when the measured object moves, the light intensity distribution of the high-frequency fringe in each deformed pattern after pixel matching can be exactly consistent. The full-cycle equal phase-shift algorithm is directly applied for phase calculation so that the filtering process is avoided and the 3D reconstruction accuracy is improved. The light intensity component of the high-frequency fringe is designed to be much smaller than that of the low-frequency fringe, and it can be considered as faint background light and the interference of high-frequency fringe on phase calculation is further reduced. The simulated and experimental results show that compared with other methods, the proposed method can improve the reconstruction accuracy effectively. © 2019, Chinese Lasers Press. All right reserved.
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  • [1] Srinivasan V., Liu H.C., Halioua M., Automated phase-measuring profilometry of 3-D diffuse objects, Applied Optics, 23, 18, pp. 3105-3108, (1984)
  • [2] Brown G.M., Overview of three-dimensional shape measurement using optical methods, Optical Engineering, 39, 1, pp. 10-22, (2000)
  • [3] Zheng D.L., Da F.P., Qian K.M., Et al., Phase-shifting profilometry combined with gray-code patterns projection: unwrapping error removal by an adaptive median filter, Optics Express, 25, 5, pp. 4700-4713, (2017)
  • [4] Xu X.F., Cao Y.P., An improved Stoilov algorithm based on statistical approach, Acta Optica Sinica, 29, 3, pp. 733-737, (2009)
  • [5] Chen H.L., Yin Y.K., Cai Z.W., Et al., Suppression of the nonlinear phase error in phase shifting profilometry: considering non-smooth reflectivity and fractional period, Optics Express, 26, 10, pp. 13489-13505, (2018)
  • [6] Ekstrand L., Zhang S., Three-dimensional profilometry with nearly focused binary phase-shifting algorithms, Optics Letters, 36, 23, (2011)
  • [7] Chen C., Wan Y.Y., Cao Y.P., Instability of projection light source and real-time phase error correction method for phase-shifting profilometry, Optics Express, 26, 4, (2018)
  • [8] Ri S.E., Fujigaki M., Morimoto Y., Intensity range extension method for three-dimensional shape measurement in phase-measuring profilometry using a digital micromirror device camera, Applied Optics, 47, 29, pp. 5400-5407, (2008)
  • [9] Rusinkiewicz S., Hall-Holt O., Levoy M., Real-time 3D model acquisition, ACM Transactions on Graphics, 21, 3, pp. 438-446, (2002)
  • [10] Hyun J.S., Chiu G.T.C., Zhang S., High-speed and high-accuracy 3D surface measurement using a mechanical projector, Optics Express, 26, 2, (2018)
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