Feature Vector-Based Coarse Registration Algorithm for Aircraft Blades

Zechuan Wang; Zhenhua Zhang; jin Liu; Haima Yang

doi:10.3788/LOP241494

Laser & Optoelectronics Progress, Volume. 62, Issue 6, 0615003(2025)

Feature Vector-Based Coarse Registration Algorithm for Aircraft Blades

Zechuan Wang^1、*, Zhenhua Zhang¹, jin Liu¹, and Haima Yang²

Author Affiliations

¹College of Electronic and Electrical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China

²School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China

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Figures & Tables(13)

Fig. 1. Rotation of feature vectors. (a) Initial position; (b) decentralization; (c) alignment of feature vectors

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Fig. 2. Rotation of feature points. (a) Alignment of feature vectors; (b) alignment of feature points

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Fig. 3. Point cloud scanning system

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Fig. 4. Coarse registration results of rocket turbopump blades. (a) Initial blades; (b) proposed algorithm; (c) FPFH; (d) PCA; (e) 3DSC

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Fig. 5. Precise registration results of rocket turbopump blades by ICP algorithm. (a) Proposed algorithm; (b) FPFH; (c) PCA; (d) 3DSC

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Fig. 6. Coarse registration results of damaged compressor blades. (a) Initial blades; (b) proposed algorithm; (c) FPFH; (d) PCA; (e) 3DSC

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Fig. 7. Precise registration results of damaged compressor blades by ICP algorithm. (a) Proposed algorithm; (b) FPFH; (c) PCA; (d) 3DSC

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Fig. 8. Coarse registration results of different algorithms. (a) Time; (b) RMSE

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Fig. 9. Precise registration results of different algorithms. (a) ICP Iterations; (b) RMSE

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Table 1. Comparison of coarse registration results for rocket turbopump blades by different algorithms
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Table 1. Comparison of coarse registration results for rocket turbopump blades by different algorithms
Algorithm RMSE /mm Time /s Down sampling
Proposed 0.5217 8.66 —
FPFH 0.7626 52.75 10000
PCA 0.5050 78.62 160000
3DSC 1.8370 250.89 50000

Table 2. Comparison of precise registration results for rocket turbopump blades by different algorithms
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Table 2. Comparison of precise registration results for rocket turbopump blades by different algorithms
Algorithm RMSE /（10^-3 mm） Time /s ICP iterations
Proposed algorithm+ICP 2.226 403.58 20
FPFH+ICP 3.345 596.46 29
PCA+ICP 1.853 380.24 18
3DSC+ICP 33.540 709.15 35

Table 3. Comparison of coarse registration results for damaged compressor blades by different algorithms
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Table 3. Comparison of coarse registration results for damaged compressor blades by different algorithms
Algorithm RMSE /mm Time /s Down sampling
Proposed 0.5231 10.87 —
FPFH 0.7936 69.75 12000
PCA 0.5738 85.72 170000
3DSC 2.2750 245.48 50000

Table 4. Comparison of precise registration results for damaged compressor blades by different algorithms
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Table 4. Comparison of precise registration results for damaged compressor blades by different algorithms
Algorithm RMSE /（10^-3 mm） Time /s ICP iterations
Proposed algorithm+ICP 3.109 464.58 19
FPFH+ICP 4.065 723.46 29
PCA+ICP 3.784 489.24 20
3DSC+ICP 24.180 857.15 35

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Zechuan Wang, Zhenhua Zhang, jin Liu, Haima Yang. Feature Vector-Based Coarse Registration Algorithm for Aircraft Blades[J]. Laser & Optoelectronics Progress, 2025, 62(6): 0615003

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Paper Information

Category: Machine Vision

Received: Jun. 17, 2024

Accepted: Aug. 20, 2024

Published Online: Mar. 3, 2025

The Author Email:

DOI:10.3788/LOP241494

CSTR:32186.14.LOP241494

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology

Table 1. Comparison of coarse registration results for rocket turbopump blades by different algorithms

Table 1. Comparison of coarse registration results for rocket turbopump blades by different algorithms

Table 2. Comparison of precise registration results for rocket turbopump blades by different algorithms

Table 2. Comparison of precise registration results for rocket turbopump blades by different algorithms

Table 3. Comparison of coarse registration results for damaged compressor blades by different algorithms

Table 3. Comparison of coarse registration results for damaged compressor blades by different algorithms

Table 4. Comparison of precise registration results for damaged compressor blades by different algorithms

Table 4. Comparison of precise registration results for damaged compressor blades by different algorithms