Next Article in Journal
Environmental Monitoring of Methane with Quartz-Enhanced Photoacoustic Spectroscopy Exploiting an Electronic Hygrometer to Compensate the H2O Influence on the Sensor Signal
Previous Article in Journal
The Wearable Co-Design Domino: A User-Centered Methodology to Co-Design and Co-Evaluate Wearables
Previous Article in Special Issue
The Quality Assessment of Different Geolocalisation Methods for a Sensor System to Monitor Structural Health of Monumental Objects
Open AccessArticle

Suitability of Automatic Photogrammetric Reconstruction Configurations for Small Archaeological Remains

1
Department of Mechanical Engineering, Universidad de Salamanca, Avenida Fernando Ballesteros, 0, Béjar, 37700 Salamanca, Spain
2
Department of Technology, Universidad Católica de Ávila, C/ Canteros s/n, 05005 Ávila, Spain
3
Department of Mining Technology, Topography and Structures, Universidad de León, Avenida Astorga, s/n, 24401 Ponferrada, Spain
*
Author to whom correspondence should be addressed.
Sensors 2020, 20(10), 2936; https://doi.org/10.3390/s20102936
Received: 4 May 2020 / Revised: 18 May 2020 / Accepted: 20 May 2020 / Published: 22 May 2020
(This article belongs to the Special Issue Sensors for Cultural Heritage Monitoring)
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. View Full-Text
Keywords: macro-photogrammetry; 3D reconstruction; archeology; cultural heritage; documentation; digital preservation; point cloud macro-photogrammetry; 3D reconstruction; archeology; cultural heritage; documentation; digital preservation; point cloud
Show Figures

Figure 1

MDPI and ACS Style

Rodríguez-Martín, M.; Rodríguez-Gonzálvez, P. Suitability of Automatic Photogrammetric Reconstruction Configurations for Small Archaeological Remains. Sensors 2020, 20, 2936.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop