Yi Yang, Bing Yan, Dawei Dong, Yan Huang, Zhongzhi Tang. Method for Extracting the Centerline of Line Structured Light Based on Quadratic Smoothing Algorithm[J]. Laser & Optoelectronics Progress, 2020, 57(10): 101504
- Laser & Optoelectronics Progress
- Vol. 57, Issue 10, 101504 (2020)
Fig. 1. Image before and after cropping. (a) Image before cropping; (b) image after cropping
Fig. 2. Result of the gray center of gravity method
Fig. 3. Comparison of results before and after primary smoothing
Fig. 4. Comparison of two smoothing results
Fig. 5. Center line of the upper laser stripe on the standard block and its extraction results. (a) Cylinder standard block; (b) depth standard block
Fig. 6. Error of standard block. (a) Diameter error; (b) depth error
Fig. 7. Four typical line types. (a) Straight line; (b) bolt; (c) curve; (d) broken line
Fig. 8. Laser fringe pictures under different illumination conditions
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Table 1. Center error of laser stripe extraction
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Table 2. Operation timeunit: s
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Table 3. Comparison of coordinates extracted from laser fringe centerunit: pixel
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