Pengxuan Wei, Zhi Huang, Xiao Zheng, Haitao Liu, Xiang Wu, Yongjian Wan. Fast phase unwrapping method based on multiple pigeonhole adaptive sorting[J]. Infrared and Laser Engineering, 2020, 49(8): 20200032
- Infrared and Laser Engineering
- Vol. 49, Issue 8, 20200032 (2020)
Fig. 1. Schematic diagram of pixel second-order difference
Fig. 2. Algorithm flowchart
Fig. 3. Schematic diagram of pixel non-confidence value. (a) Pixel non-confidence values； (b) Pixel group non-confidence values
Fig. 4. Results of multiple pigeonholes adaptive sorting
Fig. 5. Phase-unwrapping process
Fig. 6. Single-shot structured light system
Fig. 7. Four-step phase-shifted grating projection on face
Fig. 8. Improved phas-unwrapping algorithm. (a) Phase unwrapping of face； (b) Phase height
Fig. 9. Original phas-unwrapping algorithm. (a) Phase unwrapping of face；(b) Phase height
Fig. 10. Points cloud of face. (a) Front view；(b) Side view
Fig. 11. Result of points cloud surface reconstruction. (a) Phase-unwrapping algorithm proposed in this paper ；(b) Original phase-unwrapping method
Fig. 12. Four-step phase-shifted grating projection on blisk
Fig. 13. Improved phas-unwrapping algorithm. (a) Phase unwrapping of blisk；(b) Phase height
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Table 1.
Application scenarios and calculation time of the phase-unwrapping algorithm
相位展开方法的应用场景和计算时间
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