View
219
Download
0
Category
Tags:
Preview:
Citation preview
“Virtual Emona” on dLib.si using 3D technologiesAuthors:Kaja Antlej, IB-PROCADD d.o.o.Mojca Šavnik, National and University Library of SloveniaBernarda Županek, Museum and galleries of LjubljanaKristjan Celec, IB-PROCADD d.o.o.
Kaja Antlej, Young Researcher IB-PROCADD d.o.o.
The fifth SEEDI International Conference: Digitization of cultural and scientific heritage May 19-20 2010, Sarajevo, BiH
Roman colony Emona (Colonia Iulia Emona)
-1. to 6. Century - present city of Ljubljana, Slovenia.
Emona had comprehensive belonging territory, for which it was the administrative, political, economic and cultural centre.
(Fig
ure:
w
ww
.mest
nim
uze
j.si
/)
The beginning phase of the project:
- 3D digitization of the model of archaeological site NUK II (named by future bigger building of NUK) made by Peter Ogorelec and co-workers
- 3D digitization of 13 artefacts found on the site
for internet publishing on dLib.si
Model of site NUK II
Archaeological site NUK II:- 4 remained Emonian insulas- crossing of two roads between them
Late Roman period: thermal city baths, recreational-amusement complex.
Central point: a thermal bath with extension of 50 m² surface areas and depth of nearly 1.60 m.
Large number of artefacts: clay (oil lamps) and glass vessels, coins, dices, chips for playing games...
(Ph
oto
gra
ph
s b
y:
Dam
jan
Sn
oj, A
les
Og
ore
lec
Arc
hiv
e M
GM
L)
3D scanned models will be on dLib.si published in two ways:
- as independent digital objects with metafile description
- as the whole, united in virtual exhibition >to walk around the model of archaeological location, metafiledescription: title, year of creation and specifications, also short description of Emona
digital library d.Lib.si, virtual exhibition
heritage transference from physical ---> virtual environment environment
Benefits:- visitors from distant access- important for local public - widespread recognition of Slovenian heritage in the world - easier access to heritage to people with special needs
oil lamp (photograph)
3D model (VRML)
First phases of the project from digital shape sampling and processing (DSSP) of data for internet publishing: - 3D digitization- scan editing- texturing and - exporting to appropriate file format
All 3D models need to be in appropriate file format for web publishing, as well as textured for better presentation.
photographs
3D digitization
digitized model (STL)
NUK II site model - scale 1:50- measures 2017 x 1698 mm (without frame)
3D digitization- net with glue sticked reflective targets - Handheld laser 3D scanner ZScanner 800- ZScan software: generates polygonized surface- Geomagic Studio: editing to watertight model
TV
Slo
ven
ija
3D digitized13 archaeological objects: - part of amphora- 4 clay oil lamps- 1 bronze oil lamp (+ lid)- weight- appliqué- incense burner- dice- black counter- white counter
Uncontact scanning of the surface assures safe object handling, which is significant for heritage contents.
3D models (VRML)
Example of bronze oil lamp - processes of texturing,- exporting to 3D PDF -3D printing of copy
Oil lamp -important object of Roman everyday life- NUK II: large number of clay lamps, bronze oil lamp was found. - with lamps on olive oil lighted in houses over the whole Empire
TV
Slo
ven
ija
oil lamp (photograph)
3D digitization
oil lamp: 90 x 62 x 56 mmlid: 41 x 45 x 31 mm
- objects 3D scanned separately - edited to watertight surface - textured > 20 different photographs
- saved into VRML file format
We can save both parts into one file, but in simple 3D viewers we cannot view them and turn around objects independently.
original scan
watertight STL
texturing process
3D viewer for VRML files - basic interactive functions- not need huge computer virtual memory
Adobe Reader (7 and later) - PDF file format (VRML can be exported to PDF)- also supports the interactive 3D datar viewing the 3D models (from version 7 ahead)- dLib.si PDF for 2D documents, and PDF. Files can be viewed in Adobe Acrobat
3D digitized oil lamp (3D PDF)
Every watertight object can be printed with 3D printer, other additive machine or CNC system.
For promotion and presentation purposes of Emonian heritage: - copy of bronze oil lamp and its lid - 3D printer ZPrinter 450
3D printed model is also an excellent tool in museum pedagogy. full color 3D printed model
The beginning phase of project Virtual Emona - a ground for an exhibition
3D documented material:- archiving - presenting 3D models in the dLib.si multimedia collection (connection to Europeana)
Momentarily the project is bordered only to the archaeological site NUK II, but in the future it can be broaden to a wider Emonian or/and Slovenian heritage. 3D model (VRML)
part of amphora (photograph)
Virtual Emona project on Slovenian National Television
25. 3. 2010, TV Slovenija 2Cultural TV show 8. dan
Fokus: 3D tehnologija v kulturni dediščini
Prepared by: Maja Bahar
TV
Slo
ven
ijaTV
Slo
ven
ija
This presentation and the paper were made during Researching program of Young Researcher Kaja Antlej, IB-PROCADD d.o.o. Operation part financed by the European Union, European Social Fund.
Kaja Antlej, Young Researcher
e-mail: kaja@ib-procadd.simobile: +386 (0) 41 657 928
IB-PROCADD, d. o. o.Ljubljana, Sloveniaphone: +386 (0)1 565 72 54website: www.ib-procadd.si, www.3Dt.si
Recommended