Researching | Construction Building Flatness Detection Method Based on 3D Laser Scanning

Laser & Optoelectronics Progress, Volume. 60, Issue 16, 1612004(2023)

Construction Building Flatness Detection Method Based on 3D Laser Scanning

Guoqiang Wu¹, Jiayong Yu^1、*, Wei Ma¹, Hu Chang², Zongcheng Wei², Jie Xu¹, and Xuejing Jiang¹

Author Affiliations

¹College of Civil Engineering, Anhui Jianzhu University, Hefei 230601, Anhui, China

²2ND Construction Co., Ltd of China Construction 5TH Engineering Bureau, Hefei 230000, Anhui, China

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Figures&Tables (13)

References (17)

Paper Information

Figures & Tables(13)

Fig. 1. Flow chart of point cloud data thinning

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Fig. 2. Schematic of concave-convex feature point judgment

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Fig. 3. Schematic of flatness detection. (a) TMM; (b) PFM

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Fig. 4. Scanning site in building

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Fig. 5. Room D three-dimensional point cloud

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Fig. 6. Comparison of three methods for concave-convex feature thinning

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Fig. 7. Point cloud feature extraction and segmentation

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Fig. 8. Point cloud distribution statistic

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Fig. 9. Color deviation map of wall-3 flatness

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Table 1. Comparison of results processed by three methods

Table 1. Comparison of results processed by three methods

Method	Distance threshold	Number of original points	Number of remaining points	Thinning ratio /%	Flatness /mm
Random sampling method	—	166755	56921	65.8	2.05
Minimum distance method	0.01 mm	166755	54310	67.4	2.64
Non-uniform thinning method	—	166755	74319	55.4	3.36

Table 2. Plane fitting parameter

Table 2. Plane fitting parameter

Member	Normal	Plane fitting root mean square
Wall-1	（-0.002446，0.999997，0.000558）	0.003337
Wall-2	（-0.999978，-0.001949，0.000168）	0.003512
Wall-3	（0.002605，-0.999995，0.001828）	0.005944
Wall-4	（0.999992，0.003708，0.001417）	0.002753
Floor	（0.000971，0.004027，0.999991）	0.006160
Floor slab	（0.000267，-0.001273，0.999999）	0.005763

Table 3. Dimension index calculation result
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Table 3. Dimension index calculation result
Detection method Wall-1 Wall-2 Wall-3 Wall-4
TMM 3.1 1.0 4.2 2.8
PFM 3.46 1.76 5.60 3.78

Table 4. Working time
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Table 4. Working time
Position PFM TMM
Data acquisition Pre-processing Detection
One level 1.5 0.6 0.2 3

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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

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Paper Information

Category: Instrumentation, Measurement and Metrology

Received: Apr. 12, 2023

Accepted: May. 30, 2023

Published Online: Aug. 18, 2023

The Author Email: Yu Jiayong (yujiayongskd@163.com)

DOI:10.3788/LOP231078

Topics

laser devices and laser physics

Lasers and Laser Optics

laser manufacturing

Instrumentation, Measurement and Metrology