Comparación de fotogrametría terrestre y escaner laser en pictogramas. caso de estudio: zona canoas en la vereda el charquito del Municipio de Soacha

Abstract

The main objective was to make a comparison with terrestrial laser scanner and photogrammetric methods for pictograms in Canoas Zone in the El Charquito the municipality of Soacha. It was determined through various methods: obtaining ground photographs, scanning 3D laser scanner with referencing spheres of control and georeferencing of the area using GPS positioning - RTK. the tracing, taking measurements and mapping coordinates 24 points visible in the highlights pictograms was made. each survey was analyzed obtaining two 3D models and developed comparison, 4 orthophotos (two IR and two standard) using 2 test of the American Society for Photogrammetry and Remote Sensing and adjustment of the survey data with RTK, Based on the results the laser scanner is not a good element to document rock art because it does not provide a good color image, measures pictographs were taken without much certainty, a comparison of the model with photographs as the amount taken in the scene saw these become clearer.