Fan Gu, Changlun Zhang, Zhiguang Guo, Hengyou Wang, Qiang He, Tong An. Combined Filtering Algorithm for Extracting Bridge Point Cloud[J]. Laser & Optoelectronics Progress, 2023, 60(2): 0211001
- Laser & Optoelectronics Progress
- Vol. 60, Issue 2, 0211001 (2023)
Fig. 1. Flow chart of bridge construction point cloud extraction
Fig. 2. Experimental point cloud data
Fig. 3. Point cloud data after denoising (side view)
Fig. 4. Point cloud data after denoising (vertical view)
Fig. 5. Enclosure
Fig. 6. Vegetation point cloud and bridge point cloud
Fig. 7. Filtering result based on dispersion (side view)
Fig. 8. Filtering result based on dispersion (vertical view)
Fig. 9. Combined radius filtering result ( side view )
Fig. 10. Combined radius filtering result ( vertical view)
Fig. 11. Filtering result based on statistics (side view)
Fig. 12. Filtering result based on statistics (vertical view)
Fig. 13. Result of normal filtering (side view)
Fig. 14. Result of normal filtering (vertical view)
Fig. 15. Result of proposed algorithm
Fig. 16. Filtering result of radius+colour+CSF
Fig. 17. Filtering result of radius+altitude+CSF
Fig. 18. Filtering result of radius+colour+normal
Fig. 19. Filtering result of radius+altitude+normal
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Table 1. Characteristic statistical value of different ground features at red, green, and blue bands
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Table 2. Comparison results of different algorithms
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