Category: Application development

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Call for collaboration under the Greek National Project ‘GameIt’

logo-GameIT
The Multimedia Research Group has an open call for 4 external collaborators for the purposes of the Greek National Project ‘GameIt‘. The call is open till June 19, 2014, 15:00. A brief description of the vacancies is as follows:

  1. Two (2) electrical or informatics engineers for the development of
    • Ontology mapping system
    • Serious games scenario editor (world & scenario editor)
    • Multiplayer online game system
  2. Two (2) historians/archaeologists or/and art historians for
    • Collection and cataloguing of cultural and educational sources
    • Analysis and rating of cultural and educational resources
    • Mapping of ontologies of various resources to the ontology of ‘GameIt’
    • Collection, cataloguing and analysis of thesauri and vocabularies

Extensive call description can be found at the ILSP job vacancies page.

—————————————— Greek version

Η Ομάδα Έρευνας Πολυμέσων αναζητά 4 συνεργάτες για τις ανάγκες του Εθνικού έργου ΠΑΒΕΤ ‘GameIt‘. Η πρόσκληση είναι ανοικτή έως τη 19η Ιουνίου 2014, ώρα 15:00. Μια συνοπτική περιγραφή των εν λόγω θέσεων ακολουθεί:

  1. Δύο (2) μηχανικοί/πληροφορικοί για την ανάπτυξη
    • Συστήματος αντιστοίχισης οντολογιών
    • Μηχανή συγγραφής σεναρίων παιχνιδιών (world & scenario editor)
    • Σύστημα πολυσυμμετοχκού διαδικτυακού παιχνιδιού
  2. Δύο (2) ιστορικοί/αρχαιολόγοι ή/και ιστορικοί τέχνης για
    • Συλλογή και καταγραφή πολιτιστικών και εκπαιδευτικών πηγών
    • Ανάλυση και διαβάθμιση πολιτιστικών και εκπαιδευτικών πηγών
    • Αντιστοίχιση οντολογιών πηγών με την οντολογία του έργου ‘GameIt’
    • Συλλογή, καταγραφή και ανάλυση θησαυρών όρων και λεξικών

Αναλυτική περιγραφή της πρόσκλησης βρίσκεται στη σελίδα ανοικτών θέσεων συνεργασίας του ΙΕΛ.

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3D digital cultural heritage A to Z

3D digital cultural heritage begins its life with 3D digitisation as part of a complete 3D recording approach and completes with the 3D applications and reproduction. 3D physical reproduction has gained momentum in the recent years as 3D printing technologies are becoming more and more accessible, mainly due to the reduction of cost both in hardware and in consumables used for printing.
Recently our lab acquired one such 3D printing system, the CubeX by 3D Systems. With this system our lab has now completed the puzzle of 3D digital cultural heritage, covering all aspects involved. With an Arius 3D laser scanning system, a customised structured light scanner based on the David 3D scanning system, a shape from silhouette scanning system and a Structure-From-Motion-Dense Multi-View 3D Reconstruction method with a turntable, along with an Optech Ilris 3D time-of-flight laser scanning system for large structures and open spaces, we are able to cover a diversity of 3D digitisation projects. With a long experience in data structures, cultural documentation and work for Europeana we are able to support any cultural documentation project. Our even longer experience in multimedia applications for cultural heritage in many forms and platforms covers numerous possibilities for digital delivery, scientific study, education and entertainment. Now with the addition of the CubeX 3D printing system we are able to cover the aspect of physical reproduction.

Our newly acquired CubeX system characteristics in brief:
Z axis resolution:
0.100mm (0.004” / 100 microns)
X-Y resolution:
+/- 1% of object dimension or +/- 0.2mm (0.008” / 200 microns) whichever is greater
Maximum build size:
275mm (w) x 265mm (l) x 240mm (h) or 10.75” x 10.75” x 9.5”

Here are a few draft 3D printed models from our previous work on monument digitisation:
IMG_01384 IMG_01385
IMG_01376IMG_01374
IMG_01379IMG_01382

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Testing WebGL technology…

This is a demo of five 3D digital replicas of artefacts that one can examine in a WebGL enabled browser.

It uses the X3DOM script to exploit the WebGL functionality in order to visualise real time 3D graphics without the need of any additional plug-ins in a Web page.

By adviced that not all web browsers are compliant with the WebGL standard yet.

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Content-based Virtual Museum navigation

Content based retrieval engine in a Virtual Museum of Pottery
An interactive virtual museum of 3D pottery artefacts has been used as a case study. The virtual visitor can perform queries to the system like ‘Where in this 3D scene I can find vessels similar to this’. Again an attempt to combine a content-based retrieval mechanism within an interactive real time 3D enviroment.

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Exploring 3D Scenes with keywords

3DSSE 3D Scene Search Engine3DSSE is an experimental search engine that allows the user to explore 3D scenes using keywords.
The engine is based on the annotation of 3D scenes in order to identify and describe specific ontologies within that scene. The metadata that follow each 3D scene contain information about each ontology (e.g. building, statue, artefact) as well as a viewpoint vector that enables the virtual visitor to be placed directly in front of a specific ontology within the 3D scene. This approach not only shifts the virtual visitor from the time consuming manual exploration of a complex 3D scene into a more efficient and user-friendly approach to identify areas-of-interest but it allows the performance of complex queries related to properties such architectural attributes, construction dates, topological relationship and other.
You can try it at http://polymnia.ipet.gr/akoutsou/3dsse

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3D reconstruction of Argostoli

A virtual walkthrough at the port of Argostoli, Kefalonia, as it was before the devastating earthquake of 1953.

The three-dimensional reconstruction of the area, based on topographic maps, historical photographs and documentary material, depicts the area of the port of Argostoli at the time before the earthquake.
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3D Digitization of Monuments

Case: Digitization of Religious Monuments in the region of Mani, Peloponnese

The project involves the digitization and 3D reconstruction of a Byzantine church in the area of Stavri in Mani and the Post-Byzantine church of Aghios Vasileios in the Kelefa settlement. The goal of the project was the universal dissemination of the monuments. The virtual walkthrough includes the exterior as well as the interior of the churches.