Chipeng Cao, Huiqin Wang, Ke Wang, Zhan Wang, Gang Zhang, Tao Ma. Intelligent Evaluation Method of Grottoes Surface Weathering Based on Multispectral Imaging and Random Forest Algorithm[J]. Acta Optica Sinica, 2020, 40(22): 2230001
- Acta Optica Sinica
- Vol. 40, Issue 22, 2230001 (2020)
Fig. 1. Characterization of reflection spectrum of grottoes surface with different weathering types and degrees
Fig. 2. Spectral reflectance of grotto surface with different weathering types and degrees
Fig. 3. Characteristics of the first derivative of spectral reflectance of grotto surface with different weathering types and degrees
Fig. 4. Technical block diagram of weathering types and degrees evaluation method
Fig. 5. Experimental process
Fig. 6. Multispectral imaging data collection on grotto surface. (a) RGB image of target collection area; (b) 640 nm multi-spectral image of target area; (c) distribution of sampling points
Fig. 7. Multi-spectral data reconstruction flow chart
Fig. 8. Normalized spectral reflectance data of grotto surface with different weathering types and degrees
Fig. 9. Characteristics of the first derivative of standardized spectral reflectance date of grotto surface with different weathering types and degrees
Fig. 10. Assessment results of pure weathering area
Fig. 11. Assessment results of four algorithms on overall weathering types and degrees of grotto surface. (a) True weathering types and degrees; (b) RF algorithm; (c) SVM algorithm; (d) SAM algorithm; (e) CNN algorithm
|
Table 1. Comparison of prediction results of four algorithms
| |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Table 2. Comparison of confusion matrix of four algorithms
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20