Fei Yan, Cheng Sun, Peiyue Wu, Changqiu Lu, Jie Wen, Jia Liu. A Three-Dimensional Measurement Method Based on Binary Coding Combined with Error Diffusion Algorithm[J]. Acta Optica Sinica, 2023, 43(22): 2212001
- Acta Optica Sinica
- Vol. 43, Issue 22, 2212001 (2023)
Fig. 1. Principle of binary coding combined with error diffusion
Fig. 2. Schematic diagram of binary coding combined with error diffusion
Fig. 3. S-shaped path scanning
Fig. 4. Contrast of fringes. (a)(b) Local enlargement of images; (c)(d) four binary images; (e)(f) Gaussian filter image; (g)(h) grayscale value of Gaussian filter image
Fig. 5. Solution for standard sinusoidal phase. (a) Wrapped phase of the 400th row partial pixel; (b) unwrapped phase
Fig. 6. Simulation comparison of phase root mean square error with different periods
Fig. 7. Experimental comparison of phase root-mean-square error with different periods
Fig. 8. Experimental results of phase solving calibration plates. (a)-(c) Captured pictures; (d)-(f) unwrapped phase; (g)-(i) point cloud of calibration plate
Fig. 9. Results of sinusoidal fitting. (a) T=32 pixel; (b) T=96 pixel
Fig. 10. Measurement results of precision ball. (a) Point cloud of precision ball; (b) reconstruction results; (c) fitted sphere data; (d) fitting error distribution
Fig. 11. Reconstruction results of statue. (a) Unwrapped phase; (b) full renderings; (c) local enlarged view
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Table 1. Sinusoidal fitting error analysis
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Table 2. fitting sphere accuracy analysis
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