Studio delle paste ceramiche di anfore della laguna di Venezia mediante una procedura basata sulla elaborazione di immagini

Iwona Modrzewska, Luciano Azzarelli, Sirio Cerri, Massimo Chimenti, Maciej Pawlikowski, Franco Pianetti

«Archeologia e Calcolatori» 1996, 7, 469-486

Abstract

This article discusses a research project about the imported and local amphorae found in the Veneto region. The study is specifically based on fragments of Spanish amphorae found in the Venetian lagoon. Several samples could be clearly identified as fragments of the forms coming from the Baetica region (e.g., Dr 8, Dr 38, Dr 7/11, Dr 20 and Dr 20-23); other samples of very limited number could also be reliably identified. In order to attempt a broad identification we have studied the composition of the pastes of a small number of fragments by means of mineralogical and petrographic analyses. Additionally image processing techniques were also used: in particular, a classification procedure has been designed that will perform morphologic, chromatic, radiometric and spectral analyses on the images of thin sections of the amphorae, taken by a polarising microscope. The procedure could be completed by analysing a larger number of samples, that will allow to establish the decision thresholds used in the classification process; the procedure will facilitate the fusion of data and information obtained with different destructive and non destructive tests of the samples, so that it could constitute a useful tool for the archaeological research.

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