Key Laboratory for Urban Geometrics of National Administration of Surveying Mapping and Geoinformation

Beijing, China

Key Laboratory for Urban Geometrics of National Administration of Surveying Mapping and Geoinformation

Beijing, China

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Ming G.,Key Laboratory for Urban Geometrics of National Administration of Surveying Mapping and Geoinformation | Ming G.,Beijing University of Civil Engineering and Architecture | Yanmin W.,Key Laboratory for Urban Geometrics of National Administration of Surveying Mapping and Geoinformation | Yanmin W.,Beijing University of Civil Engineering and Architecture | And 4 more authors.
Journal of the Balkan Tribological Association | Year: 2015

Mineral pigments are a main part of Chinese ancient architecture paintings and coloured drawings. LiDAR technology is a means of measuring technique commonly used in the protection of ancient buildings. Spectra of mineral pigments are acquired by using hyper-spectral imaging technique and analysed separately to find out the influence of mineral pigments on LiDAR. The curve database is then established by the analysis of the spectra acquired. The authors reap huge fruits that acquire the reflection intensity of the mineral pigments by LiDAR scanning, finding out the connection by comparing the curve spectra and the reflection intensity. The comparison result shows that the reflection intensities of ivory black and mica are more stable than other pigments on wavelength within a range from 0 to 2000 nm. Throughout the analysis of the experiment, the authors find it important to verify a mineral pigment of fine chemical stability to make the target of LiDAR in the protection of cultural relics. Although the mineral pigments keep exposing in the air, they always prone to oxidation in sunlight, resulting in discolouration of cultural relics. The paper shows a certain understanding on the 1132 stability of pigments and their oxides can provide the theory reference for the protection of cultural relics in the future through the analysis.

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