Guang Zhou, Weizheng Lei, Xiaohao Dong, Jie Wang. Absolute Measurement of Rectangular Flat Mirrors Using a Unidirectional Multi-Shifted Method[J]. Laser & Optoelectronics Progress, 2023, 60(23): 2312001
- Laser & Optoelectronics Progress
- Vol. 60, Issue 23, 2312001 (2023)
Fig. 1. Schematic diagram of pixel-level translation 2D absolute measurement
Fig. 2. Fitted plane. (a) Reference circular plane REF; (b) measured rectangular plane SUT; (c) relative measurement result M
Fig. 3. Effect of random noise on one-dimensional absolute measurement
Fig. 4. Surface contrast without noise. (a) Original plane; (b) rectangular plane after recovery; (c) residual map
Fig. 5. Surface contrast with random noise. (a) Original plane; (b) rectangular plane after recovery; (c) residual map
Fig. 6. Effect of different translation times on surface shape with random noise
Fig. 7. Effect of shift pixel on surface shape recovery
Fig. 8. Experimental setup
Fig. 9. Rectangular plane mirror measurement interface
Fig. 10. Surface contrast. (a) Original plane; (b) rectangular absolute plane after recovery; (c) residual map
Fig. 11. Centerline contrast
Fig. 12. Final surface contrast. (a) Original plane; (b) rectangular absolute plane after recovery; (c) residual map
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Table 1. Surface residual RMS for recovery with different pixel sizes
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