Mingteng Lu, Xianyu Su. Vertical Measurement Method for Structured Light Three-Dimensional Profilometry Based on Phase-Shifting and Modulation Ratio[J]. Chinese Journal of Lasers, 2019, 46(7): 0704003
- Chinese Journal of Lasers
- Vol. 46, Issue 7, 0704003 (2019)
Fig. 1. Principle diagram of proposed method. (a) Optical path for vertical fringe projection;(b) optical path for horizontal fringe projection
Fig. 2. Principle of height mapping. (a) Modulation curves of two grating fringes; (b) distribution of parameter MR
Fig. 3. Principle diagram of system calibration
Fig. 4. Measured plots at several pixels: (a) Modulation cross curves;(b) MR curves inside the purple square area of Fig.4(a)
Fig. 5. Measurement results of testing plane. (a) Vertical phase-shifting fringe patterns of testing plane; (b) horizontal phase-shifting fringe patterns of testing plane; (c) 3D shape of reconstructed plane
Fig. 6. Measurement results of standard sphere. (a) Vertical phase-shifting fringe patterns of the standard sphere; (b) horizontal phase-shifting fringe patterns of standard sphere; (c) 3D shape of reconstructed sphere
Fig. 7. Measurement results of stepped object. (a) Vertical phase-shifting fringe patterns; (b) horizontal phase-shifting fringe patterns; (c) picture of object to be tested; (d) 3D shape of reconstructed object
| ||||||||||||||
Table 1. Measured height and standard deviation of each stage
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20