Guoqiang Wu, Jiayong Yu, Wei Ma, Hu Chang, Zongcheng Wei, Jie Xu, Xuejing Jiang. Construction Building Flatness Detection Method Based on 3D Laser Scanning[J]. Laser & Optoelectronics Progress, 2023, 60(16): 1612004
- Laser & Optoelectronics Progress
- Vol. 60, Issue 16, 1612004 (2023)
Fig. 1. Flow chart of point cloud data thinning
Fig. 2. Schematic of concave-convex feature point judgment
Fig. 3. Schematic of flatness detection. (a) TMM; (b) PFM
Fig. 4. Scanning site in building
Fig. 5. Room D three-dimensional point cloud
Fig. 6. Comparison of three methods for concave-convex feature thinning
Fig. 7. Point cloud feature extraction and segmentation
Fig. 8. Point cloud distribution statistic
Fig. 9. Color deviation map of wall-3 flatness
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Table 1. Comparison of results processed by three methods
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Table 2. Plane fitting parameter
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Table 3. Dimension index calculation result
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Table 4. Working time
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