Title
A novel method for estimating the complete 3D shape of pottery with axial symmetry from single potsherds based on principal component analysis
Date Issued
01 January 2016
Access level
metadata only access
Resource Type
journal article
Author(s)
Navarro L.
Saldana J.
University of Rochester
Publisher(s)
Elsevier Ltd
Abstract
Recording ceramic potsherds recovered during archeological excavation is an essential task for both the archeological interpretation and conservation because of the evidence they represent. However, complete vessels provide additional data such as food storage capacity, and physical dimensions that surpasses the information that can be extracted from a single potsherd. This paper proposes a novel digital approach intended to improve the archeological registration and interpretation by the complete 3D shape reconstruction of pottery with axial symmetry based on the 2D recordings of single potsherds. A 3D laser scanner and photogrammetry are used to acquire the mesh models of potsherds and complete vessels, respectively. Subsequently, 2D generator profiles are extracted from the models by calculating the contour, axis of symmetry, and diameter of the rim's potsherd. Then, a database of profile contours of complete vessels was established, classified and utilized in the reconstruction algorithm using Principal Component Analysis (PCA) in order to obtain a 3D complete representation of pottery estimated from a single potsherd. The proposed method was applied in the study of pottery developed by Pre-Hispanic civilizations on the north coast of Peru for the preparation and consumption of a maize-based alcoholic beverage. Accuracy experiments report errors of less than 6.25% for the 3D reconstruction of complete vessels from single potsherds. Nevertheless, experiments demonstrate that the use of a large enough database in the reconstruction algorithm leads to accuracy errors less than 0.66%.
Start page
42
End page
54
Volume
3
Issue
2
Language
English
OCDE Knowledge area
Ciencias médicas, Ciencias de la salud
Subjects
Scopus EID
2-s2.0-84969504926
Source
Digital Applications in Archaeology and Cultural Heritage
ISSN of the container
22120548
Sponsor(s)
The authors would like to thank Matias Quintana for his support and partial editing of this manuscript. This research was partially supported by the grant 89-2014 DGI from the Pontificia Universidad Catolica del Perú . Fernando Zvietcovich is supported by the Fulbright Program (U.S.A. Department of State) , and Fondo para la Innovacion, la Ciencia y la Tecnologia FINCyT (Peruvian Government) (Grant No. BECA-1-P-183-13 ).
Sources of information:
Directorio de Producción Científica
Scopus