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Graphical annotation of semantic units in a 3D gis for cultural heritage research and presentation

Mania Aikaterini, Niccolucci ,F, Arnold, D, Ioannides, M

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Summary

This paper is to show that an interoperable 3D GIS with support for semantic information can be used for very finely granulated objects as well as for objects covering vast expenses, thus allowing to link models of an archae- ological find, its surroundings and the larger landscape in a single system. For this, a common model that allows the management of semantic data which is loosely coupled to features, or parts of these features, of the real world, has been designed. It permits to give objects multiple meanings, depending on the concepts of the individual users, as well as to give semantic data specific areas and levels of validity. This approach is then explained by showing two use cases – one in a numismatic context, the other one exploring the development of wall paintings over time. In both cases, even minor elements in the images used can be defined as semantic areas and be annotated with information, both for expert and amateur users. By providing a Java-based Internet tool, these users can collabo- ratively work on these interpretations and annotations. Finally, the time component is shown to be important for both cases, and ways of presenting changes over time are given.

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