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Journals >
Laser & Optoelectronics Progress >
Volume 58 >
Issue 22 >
Page 2230002 > Article
Laser & Optoelectronics Progress
Vol. 58, Issue 22, 2230002 (2021)
Comparison of Paint Classification Methods Based on Spectral Fusion
Kunshan Gu and Jifen Wang
*
Author Affiliations
School of Investigation, People's Public Security University of China, Beijing 100038, China
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DOI:
10.3788/LOP202158.2230002
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Kunshan Gu, Jifen Wang. Comparison of Paint Classification Methods Based on Spectral Fusion[J]. Laser & Optoelectronics Progress, 2021, 58(22): 2230002
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Fig. 1.
Four infrared spectra of 50 paint samples. (a) Original spectra; (b) first derivative spectra; (c) second derivative spectra; (d) third derivative spectra
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Fig. 2.
Effect of
K
value selection on error rate
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Fig. 3.
Overall classification and recognition rate of five paint samples under 10 spectral data models
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Fig. 4.
Statistical results of minimum classification errors of four kernel functions
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Fig. 5.
Recognition rate of paint samples from different spectral data sets by SVM
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Fig. 6.
The average classification and recognition rate of all kinds of samples by SVM
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Fig. 7.
Discriminant analysis diagram
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Spectral type
Accuracy /%
Y1
Y2
Y3
Y4
Y5
Original spectra (OG)
14
100
88
84
14
1st derivative spectra (FD)
57
100
100
74
14
2nd derivative spectra (SD)
57
100
100
89
43
3rd derivative spectra (TD)
57
100
100
74
29
G1
29
100
100
79
14
G2
29
100
100
89
29
G3
43
100
100
84
29
G4
71
100
100
89
43
G5
57
100
100
79
29
G6
43
100
100
84
29
Average accuracy
45.7
100
98.8
82.5
27.3
Table 1.
Classification and recognition rate of paint samples for each spectral data when
K
=1
Spectral type
Accuracy /%
Wilks’ Lambda
Unexplained variance
Mahalanobis distance
Smallest F ratio
Rao’s V
Training set
Test set
Training set
Test set
Training set
Test set
Training set
Test set
Training set
Test set
OG
94
78
94
88
94
88
94
86
92
76
FD
90
84
94
90
94
86
100
90
92
72
SD
96
90
96
90
100
96
100
90
90
84
TD
98
90
98
88
100
96
98
94
98
86
G1
94
88
92
86
100
98
100
90
92
72
G2
96
90
96
90
100
96
100
90
90
84
G3
98
88
96
88
100
96
100
92
98
86
G4
90
86
100
90
100
96
100
94
96
82
G5
96
84
96
88
98
94
100
100
88
80
G6
92
84
96
88
100
98
100
96
96
86
Table 2.
The recognition rate of training sets and test sets of five discriminant analysis models under different spectral data
Function
Eigenvalue
Canonical correlation
Test of function
Wilks’ Lambda
P
F
1
90.092
0.994
1 through 4
0.000
0.000
F
2
14.707
0.968
2 through 4
0.002
0.000
F
3
11.233
0.958
3 through 4
0.028
0.000
F
4
1.876
0.808
4
0.348
0.001
Table 3.
Discriminant function characteristic table
Abstract
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Kunshan Gu, Jifen Wang. Comparison of Paint Classification Methods Based on Spectral Fusion[J]. Laser & Optoelectronics Progress, 2021, 58(22): 2230002
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Paper Information
Category: Spectroscopy
Received: Dec. 27, 2020
Accepted: Feb. 4, 2021
Published Online: Nov. 10, 2021
The Author Email: Wang Jifen (wangjifen58@126.com)
DOI:
10.3788/LOP202158.2230002
Recommended Topics
laser devices and laser physics
Lasers and Laser Optics
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