XVI International Numismatic Congress

Image recognition applied to the hoard of Le Câtillon II

13 Sept 2022, 15:00

20m

Auditorium Maximum - Hall B

oral presentation S34. CELTIC COINS 3. CELTIC NUMISMATICS IN THE DIGITAL AGE

Speakers

Chrisowalandis Deligio (Goethe Universität Frankfurt am Main) Karsten Tolle (Goethe Universität Frankfurt/ Main) Philip De Jersey (Culture and Heritage, States of Guernsey)

Description

The hoard of Le Câtillon II found in 2012 in Jersey contains almost 70,000 Celtic coins. It took enormous manpower and time (including 25 volunteers) taking apart the hoard, generating pictures and also to do a first identification of each single coin. Currently, die studies are still ongoing and it would probably take another several decades to finish them based on the eyes of an expert only.
Within our project called Classifications and Representations for Networks (ClaReNet) funded by the German Federal Ministry of Education and Research (BMBF) this hoard is one of three cases to apply and evaluate IT-based methods to support the processes, ranging from pre-sorting the coins to clustering them into die related sets.
So far, we can say that our first approaches with unsupervised and supervised deep-learning of smaller process steps are extremely promising. However, it remains extremely important to keep the expert in the loop.