A computer tool to identify best matches for pottery fragments

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TitreA computer tool to identify best matches for pottery fragments
Type de publicationJournal Article
Year of Publication2021
AuteursWilczek J, Monna F, Navarro N, Chateau-Smith C
JournalJOURNAL OF ARCHAEOLOGICAL SCIENCE-REPORTS
Volume37
Pagination102891
Date PublishedJUN
Type of ArticleArticle
ISSN2352-409X
Mots-clésarchaeology, automation, Best match, DCT (Discrete Cosine Transform), ICP (Iterative Closest Point), Pottery, RDP (Ramer-Douglas-Peucker), RTC (Radius Tangent and Curvature)
Résumé

Archaeologists working with pottery spend a considerable amount of time on a fundamental task - providing precise descriptions of pottery fragments. This study presents a survey of existing computational solutions to identify the best matches for a given fragment, based on its shape. Four methods (ICP, DCT, RDP, and RTC) are compared, using a pottery dataset from Graufesenque (southern France), dated to the Roman Period. The first three methods produced successful and very similar results for rim fragments (within the five best candidates for 95% of the dataset). The ICP algorithm produced the best overall results for rim fragments, and can also be used for non-rim fragments. A practical computer application, including all the above methods, was developed in R programming language, with an easy-to-use graphical interface, and is now made freely available to the archaeological community for future studies, and further development.

DOI10.1016/j.jasrep.2021.102891