Publication
SPECTRAL LITHOLOGICAL MAPPING USING PCA AND ICA METHODS: A CASE STUDY FROM SOUTHERN TUNCELI (EASTERN TURKEY)
(STEF92 Technology, 2026, MELEK URAL, SEDAT INAL, Mustafa EGRI, Mehmet ALTUNBEY)
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In this study, using ASTER surface reflectance and emissivity data to map four main lithological units (volcanic, magmatic, clastic, metamorphic) in southern Tunceli (Ayazpinari-Cukurca) using PCA and ICA transformations, and the results were validated against a reference map. The highest success among different band combinations was achieved in the SWIR region alone for the PCA transformation, and across the entire range (VNIR-SWIR-TIR, 0.52–11.65 µm) for the ICA transformation. Although SWIR-based PCA success...
Photogrammetry and Remote Sensing2026