Scientia Silvae Sinicae ›› 2022, Vol. 58 ›› Issue (9): 36-47.doi: 10.11707/j.1001-7488.20220904
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Ying Yuan,Xuefeng Wang*
Received:
2021-06-30
Online:
2022-09-25
Published:
2023-01-18
Contact:
Xuefeng Wang
CLC Number:
Ying Yuan,Xuefeng Wang. Nondestructive Estimation of Canopy Total Nitrogen of Young Aquilaria sinensis Based on Multispectral Images[J]. Scientia Silvae Sinicae, 2022, 58(9): 36-47.
Fig.4
Results of image segmentation Fig. 4Ⅰ shows the direct segmentation effect of GA-BPNN method for each spectral band image, Fig. 4Ⅱ shows the segmentation effect of FMT and GA-BPNN method for each spectral band image, where RGB is the color image synthesized after segmentation of RGB single-band image."
Table 2
Comparison of different EN model"
指标 Index | 光谱特征Spectral features | 纹理特征Texture features | 综合特征Comprehensive features | ||||||||
BAS-EN(1) | ABC-EN(1) | HGWO-EN(1) | BAS-EN(2) | ABC-EN(2) | HGWO-EN(2) | BAS-EN(3) | ABC-EN(3) | HGWO-EN(3) | |||
α | 0.978 2 | 0.973 3 | 0.667 6 | 0.024 3 | 0.371 9 | 0.866 5 | 0.814 3 | 0.829 8 | 0.930 7 | ||
R2 | 0.736 1 | 0.755 1 | 0.745 7 | 0.532 1 | 0.537 3 | 0.541 8 | 0.829 2 | 0.829 4 | 0.829 0 | ||
MRE | 0.754 3 | 0.726 4 | 0.716 9 | 1.353 1 | 1.333 4 | 1.333 7 | 0.777 3 | 0.772 1 | 0.771 2 | ||
MSE | 0.261 3 | 0.242 0 | 0.251 6 | 0.467 7 | 0.463 1 | 0.455 6 | 0.169 6 | 0.169 5 | 0.169 8 | ||
RMSE | 0.511 1 | 0.492 0 | 0.501 6 | 0.683 9 | 0.680 5 | 0.675 0 | 0.411 8 | 0.411 7 | 0.412 1 |
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