Data management for moulded ceramics and digital image comparison: a case study of Roman terra cotta figurines

In: Posluschny, A. ; Lambers, K. ; Herzog, I. (Hrsgg.): Layers of Perception. Proceedings of the 35th International Conference on Computer Applications and Quantitative Methods in Archaeology (CAA), Berlin, 2.-6. April, 2007 (Koll. Vor- u. Frühgesch. 10). Bonn 2008, pp. 160-163

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Abstract

Using a technique of image comparison on the one hand and data management on the other, we have developed a system that takes into account the singularity of moulded ceramics and allows us to approach the figurines from various points of view such as iconography, archaeological contexts, fabric and painting. The system is receptive to products of different economical regions and guarantees the objectivity of the dating process. A total of 3200 figurines have been described, measured and photographed to allow comparison of the digital images. The analysis enabled us to establish a relative chronology, to recognise iconographical evolution and to redefine the relationships between the coroplasts and the workshops. The major result of the study is the establishment of a chronological system that will make the figurines an important dating instrument for Roman provincial archaeology. Furthermore, we succeeded in defining the economic interaction between Eastern and Central Gaul.