3D terrestrial laser scanning of El Fuerte de Samaipata

Jacek Kościuk, Mariusz Ziółkowski, Bartłomiej Ćmielewski, Delfor Ulloa Vidaurre



The El Fuerte de Samaipata site inscribed on the UNESCO World Heritage List presents a pre-Columbian, multicultural history on the surface of a big sandstone rock. There are several ways of creating precise, high-resolution documentation of this rock, including classic geodetic surveys, modern high-definition surveying (terrestrial laser scanning), and close-range photogrammetry. Close-range photogrammetry is a low cost technique, and the detailed RGB documentation provided by it aids architectural and archaeological research.     This paper presents the results of the application of close-range photogrammetry in different light bands (visual, infrared, and thermal). Sony ILCE-7RM2, Parrot Sequoia, and Flir Tau2 cameras were used. The authors obtained over 50 thousand images and over 27 thousand multispectral images (multiplied by four bands, which gave over 100 thousand single band images). The multispectral and thermal data enabled risk maps to be created for conservation purposes.

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