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Digitizing and Encoding Seals - 20-21/01/2020 - Venezia (Italy)




The aim of the workshop is to present and discuss solutions, currently under development, concerning an XML-based and TEI-compliant data model for the description of Byzantine seals – and, with minor adjustments, of other coin-like objects, such as bread stamps, Hellenistic or Western Medieval seals and sealings. For this purpose, participants will be introduced to a new encoding standard: SigiDoc, the first attempt to adapt and extend the digital approach – already applied to inscriptions, coins and papyri – to seals. SigiDoc builds on the experience of the EpiDoc encoding standard and its customisable publication platform EFES (EpiDoc Front End Services). The introduction into the methodology and functionalities of both SigiDoc and EFES will take place during the first half of the workshop, followed by hands-on training sessions on the second day. The final session of the workshop will be dedicated to discussing challenges and solutions to open issues within the development of SigiDoc, as well as the questions and suggestions arising from the participants.





LUGAR/LOCATION/LUOGO: Ca' Foscari University of Venice (Venezia, Italy)









The workshop will also feature an introduction and a practical demonstration of Reflective Transformation Imaging (RTI), a cutting edge imaging technology especially well-suited for the digitization of seals. With RTI, an object is photographed multiple times with lightning from different angles. These images are then computationally processed and presented in a way that allows the viewer to virtually move the light source on-screen, thus making visible and discernible finest and most subtle structure of the object’s surface. Legibility and analysis of visual features can be significantly improved. Participants in the RTI session will be introduced into the use of RTI technology, techniques and equipment, and their applications in sigillography. During the RTI session, seals and other objects (brought by the participants) will be digitised using a custom built RTI dome.

Lessons and hands-on training will be offered by Alessio Sopracasa (Sorbonne University, Paris), Simona Stoyanova (University of Nottingham), Martina Filosa (University of Cologne), and Marcel Schaeben (CCeH, University of Cologne).

To apply for a place on this workshop, please send an application to by December 27 including a brief description of your interest in the workshop as well as your scholarly background. Basic knowledge of TEI-XML as well as of Ancient/Byzantine Greek are desirable.


Monday Jan 20th

13.00    Welcome

13.15    Introducing SigiDoc - A digital standard for describing seals

14.15    Digitizing seals - A practical introduction to RTI

15.30    Coffee Break

16.00    Encoding seals - Introduction to EFES

19.00    End first day


Tuesday Jan 21st

9.00    Indexing and authority files

10.00    Coffee Break

10.30    Faceted search and other features

12.00    Lunch Break

13.00    Hands-on training SigiDoc/EFES

14.30   Evaluation of the RTI test results 

15.00    Coffee Break

15.30    Hands-on training SigiDoc/EFES

17.00    THE END


Venue: Sala Piccola, Palazzo Malcanton Marcorà, Dorsoduro 3484/D - 30123 Venezia
Application deadline: 27 December 2019


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