Xie Zexiao, Zhang Anqi. Simultaneous Calibration of the Intrinsic and Extrinsic Parameters of Ultra-Large-Scale Line Structured-Light Sensor[J]. Acta Optica Sinica, 2018, 38(3): 315001
- Acta Optica Sinica
- Vol. 38, Issue 3, 315001 (2018)
Fig. 1. Ultra-large scale line structured-light sensor 3D measurement system. (a) Real products; (b) structural representation
Fig. 2. Intrinsic parameters model of line structured-light
Fig. 3. Quasi-one-dimensional target
Fig. 4. Calibration process
Fig. 5. Solving model of a4
Fig. 6. Calibrating extrinsic parameters of line structured-light
Fig. 7. Target image of camera calibration
Fig. 8. Fitting error result of circulararc of multi positions
Fig. 9. Three standard balls
Fig. 10. Scanning experiment of multi positions
Fig. 11. Three standard balls. (a) Scatter points; (b) fitting result of single ball
Fig. 12. Scanning error results of standard balls. (a) Errors between the fitted and standard radius; (b) maximum error of positive and negative phase; (c) errors between standard spherical centers’ and measured distance
Fig. 13. Comparison of the spherical centers’ distance errors between method 1 and 2
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Table 1. Fitting result of circulararc of multi positions
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Table 2. Multi-position fitting result of three standard balls
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Table 3. Measured results of the spherical centers’ distance of step calibration
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