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Monitoring biological degradation of historical stone using hyperspectral imaging
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SYSNO ASEP 0573424 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Monitoring biological degradation of historical stone using hyperspectral imaging Author(s) Matoušková, E. (CZ)
Kovářová, K. (CZ)
Cihla, Michal (UTAM-F)
Hodač, J. (CZ)Number of authors 4 Article number 2220565 Source Title European Journal of Remote Sensing
(2023)Number of pages 23 s. Publication form Print - P Language eng - English Country IT - Italy Keywords biological degradation ; cultural heritage ; hyperspectral imaging ; Prague ; sandstone ; weathering OECD category Materials engineering R&D Projects DG20P02OVV021 GA MK - Ministry of Culture (MK) Method of publishing Open access UT WOS 001007775800001 EID SCOPUS 85161835512 DOI 10.1080/22797254.2023.2220565 Annotation Stone is one of the most common materials used as a building material in central Europe for centuries. Historical objects are endangered by degradation procedures coming from physical, chemical and biological weathering agents.The weathering process itself should be analysed in detail in order to prevent historical objects by application of proper restoration cleaning techniques. Within our research, a historical sandstone block was analysed during time to monitor biological changes on the surface. The object of interest is situated in the immediate vicinity of Charles Bridge in Prague, which is protected as a UNESCO heritage site. This site was chosen due to high overall humidity all year long. For investigation of the year- round process of biodegradation hyperspectral sensor was used. In the first place, data were processed using four vegetation indices (NDVI, RGRI, CRI1 and VREI1). All vegetation indices indicate that vegetation is thriving and subject to normal seasonal change. The second chosen method of data processing is to use spectral reflectance curves and their subsequence processing by Spectral Angle Mapper (SAM) classification algorithms. A decline in vegetation with the onset of autumn and during the winter months was detected. Workplace Institute of Theoretical and Applied Mechanics Contact Kulawiecová Kateřina, kulawiecova@itam.cas.cz, Tel.: 225 443 285 Year of Publishing 2025 Electronic address https://doi.org/10.1080/22797254.2023.2220565
Number of the records: 1