Jiangang Zhao, Dahai Li, Lei Li, Pengyu Chen, Ruiyang Wang, Qionghua Wang. Method for Coordinate Acquisition of Camera and Measured Surface in Deflectometry[J]. Chinese Journal of Lasers, 2019, 46(3): 0304001
- Chinese Journal of Lasers
- Vol. 46, Issue 3, 0304001 (2019)
Fig. 1. Measuring principle of deflectometry
Fig. 2. Measuring principle of proposed method
Fig. 3. Schematic of experimental setup
Fig. 4. Difference of surface coordinates obtained by proposed method and Zhang's calibration method. (a) x direction; (b) y direction
Fig. 5. Comparison of shape measurement results of measured window glass. (a)-(c) Shape results after removal of first three terms of Zernike polynomials; (d)-(f) shape results after removal of first four terms of Zernike polynomials
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Table 1. Root mean square (RMS) errors of test surface coordinates obtained by proposed method
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Table 2. Coordinate of pinhole camera obtained by proposed method
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Table 3. Errors of pinhole camera coordinates obtained by proposed method
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