Chuanfu SUN, Tao PENG, Yonggang LU, Kun XU, Zhijiang ZHANG. Fast extraction center stripe of multi-line-structured light for three-dimensional measurement of casting slab[J]. Optics and Precision Engineering, 2023, 31(3): 380
- Optics and Precision Engineering
- Vol. 31, Issue 3, 380 (2023)
Fig. 1. Gray-scale statistics of laser stripe cross-section
Fig. 2. Images of casting slab
Fig. 3. Gray scale surfaces of casting slab
Fig. 4. Image processed by background difference method
Fig. 5. Gray value curves at line 2560th row
Fig. 6. Optimization principle of gray-gravity method
Fig. 7. Scene of three-dimensional measurement system for casting slab
Fig. 8. Image of ROI extraction fragment of line-structured light
Fig. 9. Adaptive gray threshold
Fig. 10. Comparison of extraction errors of different stripe center extraction methods
Fig. 11. Extraction results of different laser lines with different brightnesses
Fig. 12. Line-structured light on surface of casting slab and its three-dimensional reconstruction
|
Table 1. Extraction errors of different strip center extraction methods
|
Table 2. Running time of light bar center point extraction
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Table 3. Three dimensional measurement results of upper and lower edge points of casting slab
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20