Cit:Yang.etal:2023

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Autor Yang, H. and Chen, C. and Ni, J. and Karekal, S.
Jahr 2023
Titel A hyperspectral evaluation approach for quantifying salt-induced weathering of sandstone
Bibtex @article{YANG2023163886,

title = {A hyperspectral evaluation approach for quantifying salt-induced weathering of sandstone}, journal = {Science of The Total Environment}, volume = {885}, pages = {163886}, year = {2023}, issn = {0048-9697}, doi = {https://doi.org/10.1016/j.scitotenv.2023.163886}, url = {https://www.sciencedirect.com/science/article/pii/S004896972302507X}, author = {Haiqing Yang and Chiwei Chen and Jianghua Ni and Shivakumar Karekal}, keywords = {Weathering degree classification, Salt-induced sandstone, Hyperspectral response, Machine learning, Dazu rock carvings}, abstract = {Salt-induced weathering is a common phenomenon in stone relics, and its traditional artificial evaluation of severity is greatly affected by subjective consciousness and lacks systematic standards. Here, we propose a hyperspectral evaluation method for quantifying salt-induced weathering on sandstone surfaces in laboratory tests. Our novel approach consists of two parts: data acquisition of microscopic observations of sandstone in salt-induced weathering environments, and machine learning technology for a predictive model. We first obtain the microscopic morphology of sandstone surfaces by near-infrared hyperspectral imaging technique. Then, a salt-induced weathering reflectivity index is proposed according to analyses of spectral reflectance variation. Next, a principal components analysis-Kmeans (PCA-Kmeans) algorithm is applied to bridge the gaps between the salt-induced weathering degree and the associated hyperspectral images. Furthermore, machine learning technologies, such as Random Forest (RF), Support Vector Machine (SVM), Artificial Neural Network (ANN), and K-Nearest Neighbors (KNN), are trained for better evaluating the salt-induced weathering degree of sandstone. Tests demonstrate that the RF algorithm is feasible and active in weathering classification based on spectral data. The proposed evaluation approach is finally applied to the analysis of salt-induced weathering degree on Dazu Rock Carvings.} }

DOI https://doi.org/10.1016/j.scitotenv.2023.163886
Link https://www.sciencedirect.com/science/article/abs/pii/S004896972302507X
Bemerkungen in: Science of The Total Environment, Band 885


Eintrag in der Bibliographie

[Yang.etal:2023]Yang, H.; Chen, C.; Ni, J.; Karekal, S. (2023): A hyperspectral evaluation approach for quantifying salt-induced weathering of sandstone. In: Science of The Total Environment, 885 (), WebadresseLink zu Google Scholar