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Título
Suitability of Automatic Photogrammetric Reconstruction Configurations for Small Archaeological Remains
Autor
Facultad/Centro
Área de conocimiento
Título de la revista
Sensors
Número de la revista
10
Fecha
2020-05-22
ISSN
1424-8220
Resumo
Three-dimensional (3D) reconstruction is a useful technique for the documentation, characterization, and evaluation of small archeological objects. In this research, a comparison among different photogrammetric setups that use different lenses (macro and standard zoom) and dense point cloud generation calibration processes for real specific objects of archaeological interest with different textures, geometries, and materials is raised using an automated data collection. The data acquisition protocol is carried out from a platform with control points referenced with a metrology absolute arm to accurately define a common spatial reference system. The photogrammetric reconstruction is performed considering a camera pre-calibration as well as a self-calibration. The latter is common for most data acquisition situations in archaeology. The results for the different lenses and calibration processes are compared based on a robust statistical analysis, which entails the estimation of both standard Gaussian and non-parametric estimators, to assess the accuracy potential of different configurations. As a result, 95% of the reconstructed points show geometric discrepancies lower than 0.85 mm for the most unfavorable case and less than 0.35 mm for the other cases
Materia
Palabras clave
Peer review
SI
ID proyecto
- PC_TCUE18-20_012
URI
DOI
Editorial
MDPI
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