Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2026, V. 23, No. 4, pp. 70-88
Application of the VSS videospectral system for mapping vegetation types based on the results of space imagery
B.I. Belyaev 1 , M.Yu. Belyaev 2 , Yu.S. Davidovich 1 , L.V. Katkovsky 1 , S.V. Konev 2 , V.М. Kuznetzov 2 , G.S. Litvinovich 1 , A.O. Martinov 1 , L.A. Smolentseva 2 1 A.N. Sevchenko Institute of Applied Physical Problems of Belarusian State University, Minsk, Belarus
2 S.P. Korolev Rocket and Space Сorporation “Energia”, Korolev, Moscow Region, Russia
Accepted: 03.06.2026
DOI: 10.21046/2070-7401-2026-23-4-70-88
The article presents the results of processing individual images from the International Space Station using the VSS video spectral equipment as part of the Uragan space experiment aimed at monitoring natural and man-made disasters. The VSS hardware complex, developed by the A. N. Sevchenko Institute of Applied Physical Problems of Belarusian State University, combines synchronous high-resolution video recording (visible and near infrared range) with hyperspectral measurements (400–950 nm), which ensures increased accuracy of visual and spectral data analysis. As part of the experiment, in 2024, a survey of the territory of Belarus was carried out with the participation of the first Belarusian female cosmonaut M. Vasilevskaya. The purpose of this work is to classify the spectral radiance data and assess the significance of the spectral channels. The principal component analysis (PCA) was used for data processing, which allowed us to reduce the dimensionality of the original spectra (700 channels) to 2 components explaining 95.6 % of the variance. Hierarchical clustering in the reduced space identified five classes of natural objects: water surfaces, winter crops at the tillering stage, coniferous forests, peat-bog and sod-podzolic soils. A method for assessing the significance of spectral channels based on the PCA loading matrix is proposed, which revealed the significance of the entire spectral range of the VSS equipment (400–950 nm, except for the O2 and H2O absorption bands) for the analysis of surfaces with a predominance of vegetation. The results confirmed the correlation of biophysical parameters of the objects and their optical characteristics and also demonstrated the reproducibility of the method due to the preservation of the PCA parameters for processing new data. The practical significance of the work lies in the creation of a universal tool for operational analysis of hyperspectral remote sensing data, adapted for the tasks of monitoring land covers and natural disasters.
Keywords: classification, principal component analysis, spectral density of radiance, spectrum, spectral channels, Random Forest
Full textReferences:
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