Qing Long, Hongning Li, Ming Yang, Xin Yang. Improved Three-Dimensional Measurement Method for Structured Light Phase[J]. Laser & Optoelectronics Progress, 2022, 59(24): 2410009
- Laser & Optoelectronics Progress
- Vol. 59, Issue 24, 2410009 (2022)
Fig. 1. Diagram of experimental principle
Fig. 2. Diagram of the experimental platform
Fig. 3. Result comparison of phase calculation method before and after improvement. (a) Object to be measured; (b) result of traditional phase calculation method; (c) result of improved method
Fig. 4. Three-dimensional shape restored by improved phase calculation method. (a) Actual image; (b) depth map of phase unwrapping; (c) depth map of phase difference; (d) three-dimensional structured map
Fig. 5. Test results for whiteboard. (a) Scene; (b) phase measurement profilometry; (c) time defocus analysis method; (d) proposed method; (e) value in 100th column in Fig. 5 (b); (f) value in 100th column in Fig.5 (c); (g) value in 100th column in Fig.5 (d)
Fig. 6. Experimental results of the proposed method
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Table 1. Error comparison of phase calculation method before and after improvement
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Table 2. Error comparison
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