Fig. 1. Light stripe images. (a) Under exposure (100 μs); (b) optimal exposure(2150 μs); (c) over exposure (10000 μs)

Fig. 2. Process of light stripe Gaussian reliability evaluation

Fig. 3. Extraction process of sub-pixel light stripe center position

Fig. 4. Positions of typical sections (p1-p16) on the light stripe

Fig. 5. Reliability evaluation results of typical sections' light stripe centers. (a) C varies with t; (b) R varies with t

Fig. 6. Building Ci(t)、Ri(t) variation models with logarithmic fitting

Fig. 7. I of typical section positions varies with exposure time t

Fig. 8. Platform of line structured light 3D measurement

Fig. 9. High-precision rack

Fig. 10. Measurement results. (a) Measured profiles of the 9th tooth; (b) RSSa varies with t

Fig. 11. Comparison of model measurement results. (a) Reconstructed model 1 (t=200 μs); (b) reconstructed model 2 (t=2000 μs); (c) reconstructed model 3 (t=5000 μs); (d) reconstructed model 4 (t=10000 μs); (e) cracks area; (f) potholes