By Marinos Ioannides, Ewald Quak
This ebook comprises chosen contributions from one of the most well known researchers within the box of electronic historical past and 3D illustration of the previous, dependent largely on invited displays from the workshop “Computational Geometry and Ontologies for Cultural history 3D electronic Libraries: What are the longer term possible choices for Europeana?” which used to be held together with the overseas convention on Cultural historical past EuroMed2012 (www.euromed2012.eu) at the island of Cyprus in October 2012. This was once the authentic occasion of the Cyprus Presidency of the Council of the eu Union on development in Cultural history renovation. the purpose of this booklet is to supply an perception to ongoing study and destiny instructions during this novel, regularly very promising and multi-disciplinary evolving box, which lies on the intersection of electronic background, engineering, desktop technology, arithmetic, fabric technological know-how, structure, civil engineering and archaeology.
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Additional info for 3D Research Challenges in Cultural Heritage: A Roadmap in Digital Heritage Preservation
A more sophisticated result could be obtained by designing a system able to interconnect different media and to provide a complex network of cross-links and relations. A first attempt on this path has been done recently with the design of a system able to provide a strict correlation between text and 3D models . Many CH artworks are very complex and require long and structured textual descriptions to tell their story, to explain the artistic value and the iconographic content. We usually have to present a story that is narrated by means of the sculpted decorations (in the case of statues, bas-reliefs or even buildings).
Throughout the history of architecture, the morphological complexity of shapes was always influenced by the methods of geometrical control that made their conception possible; examples of these methods are the descriptive geometry  or stereotomy , . Based on a study of the principles subjacent to these control methods of architectural shape, one can then identify, on one side, relevant information to be extracted from survey (profiles in a point cloud for example) and, on the other side, the process of construction better adapted to ensure the geometrical restitution of elements.
5. Generation of a depth map from the polygonal mesh and analysis of geometric discontinuities and profiles directly on the map (a base, a shaft and a capital of a column) corresponding to well-defined concepts (in terms of architectural vocabulary). The transfer of segmentation and semantic annotation to unique items, even to the entire model, is studied a second time. The study on segmentation and semantic annotation should complement an analysis of the geometric similarity used to compare elements or architectural objects between them.