Jingbo Zhou, Yuehua Li, Zhiying Qin, Fengshan Huang, Zhe Wu. Calibration of Line Structured Light Sensor Based on Reference Target[J]. Acta Optica Sinica, 2019, 39(4): 0412005
- Acta Optica Sinica
- Vol. 39, Issue 4, 0412005 (2019)
Fig. 1. Measuring principle of LSLS
Fig. 2. Calibration model of πT and πL not coinciding
Fig. 3. Measuring devices of LSLS
Fig. 4. Image of reference target
Fig. 5. Calculation process of camera coordinates of laser line. (a) Ceramic target; (b) laser line on target
Fig. 6. Projection of reference points on πL
Fig. 7. Fitting surfaces of corresponding points. (a) Pixel coordinates and X coordinates; (b) pixel coordinates and Y coordinates
Fig. 8. Calculation process of intersection points
Fig. 9. Distribution of test points on laser plane under different target positions
Fig. 10. Measurement errors under different degrees of fitting polynomial
Fig. 11. Measurement errors of different calibration methods
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Table 1. Comparison of measurement results and errorsmm
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Table 2. Comparison of measurement errorsmm
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