Information TechnologyInformation Technology&&

Cultural HeritageCultural Heritage

Prof. Andreas GeorgopoulosProf. Andreas GeorgopoulosLab of Photogrammetry – N.T.U. AthensLab of Photogrammetry – N.T.U. Athens

Exploitation of Cultural Heritage Information – A need for a European hand? – Paphos, September 10-11 2007

IntroductionIntroduction Cultural Heritage RecordingCultural Heritage Recording Geometric Documentation productsGeometric Documentation products Should they be “PSI”? Should they be “PSI”? CH Legal issues in GRCH Legal issues in GR RecommendationsRecommendations

OutlineOutline

Exploitation of Cultural Heritage Information – A need for a European hand? – Paphos, September 10-11 2007

International agreements for Cultural International agreements for Cultural HeritageHeritage

Necessity of the survey – geometric Necessity of the survey – geometric documentation documentation ((Venice CharterVenice Charter, 1964), 1964)

The geometric documentation is a sub-set The geometric documentation is a sub-set of the of the Integrated DocumentationIntegrated Documentation of a of a monumentmonument

Geometric DocumentationGeometric Documentationof Monumentsof Monuments

Exploitation of Cultural Heritage Information – A need for a European hand? – Paphos, September 10-11 2007

Geometric DocumentationGeometric Documentationof Monumentsof Monuments

The geometric documentation of a monument The geometric documentation of a monument is the procedure of is the procedure of acquiringacquiring, , processingprocessing, , presentingpresenting, , archivingarchiving, , storingstoring and and managingmanaging of data (nowadays mostly digital) adequate to of data (nowadays mostly digital) adequate to determine the determine the positionposition, the , the true formtrue form, , shapeshape and and sizesize of the monument in the 3D space of the monument in the 3D space at at a given momenta given moment in time in time..

The geometric documentation of monuments The geometric documentation of monuments records theirrecords their present present, as this has evolved through , as this has evolved through time and provides the necessary time and provides the necessary base materialbase material for those who study their for those who study their pastpast as well as for those as well as for those who take care of their who take care of their futurefuture..

Exploitation of Cultural Heritage Information – A need for a European hand? – Paphos, September 10-11 2007

Sources of metric informationSources of metric information

Geodetic measurementsGeodetic measurements 3D point determination3D point determination

Photogrammetric data – procedures & Photogrammetric data – procedures & productsproducts Vector drawings (2D – 3D)Vector drawings (2D – 3D) Raster products (2D)Raster products (2D) Video sequences (2D)Video sequences (2D)

Laser scanner point cloudsLaser scanner point clouds Practically infinite number of 3D pointsPractically infinite number of 3D points

Exploitation of Cultural Heritage Information – A need for a European hand? – Paphos, September 10-11 2007

Impact of ITImpact of IT AutomationAutomation Improvement of accuracy and speedImprovement of accuracy and speed Developments in instrumentationDevelopments in instrumentation New products in digital formNew products in digital form

Combination of multi-source dataCombination of multi-source data OrthophotosOrthophotos 3D models3D models Multimedia visualizationsMultimedia visualizations

New uses of digital contentNew uses of digital content MonitoringMonitoring ArchivingArchiving CommercializationCommercialization ......

Exploitation of Cultural Heritage Information – A need for a European hand? – Paphos, September 10-11 2007

Multi-Source DataMulti-Source Data

Photogrammetric Photogrammetric measurementsmeasurements Point cloudsPoint clouds

Surveyed pointsSurveyed points

Exploitation of Cultural Heritage Information – A need for a European hand? – Paphos, September 10-11 2007

Combination of dataCombination of datadigitally produced 3D Vector + 2D Raster products

Exploitation of Cultural Heritage Information – A need for a European hand? – Paphos, September 10-11 2007

OrthophotomosaicsOrthophotomosaics

Exploitation of Cultural Heritage Information – A need for a European hand? – Paphos, September 10-11 2007

3D Models & MM 3D Models & MM visualizationsvisualizations

Point cloud registration and filling the gapsPoint cloud registration and filling the gaps Noise filtering and size reductionNoise filtering and size reduction Polygon mesh ready for renderingPolygon mesh ready for rendering Multimedia and Video productionMultimedia and Video production

Exploitation of Cultural Heritage Information – A need for a European hand? – Paphos, September 10-11 2007

3D Visualization3D Visualization

Exploitation of Cultural Heritage Information – A need for a European hand? – Paphos, September 10-11 2007

Possible . . . Re-usesPossible . . . Re-uses

EducationEducationPromotion of TourismPromotion of TourismCopies - SouvenirsCopies - SouvenirsEnable tele-visits for handicapped personsEnable tele-visits for handicapped personsProduction of 3D tactile models for blind Production of 3D tactile models for blind

personspersons … … … … … …

Exploitation of Cultural Heritage Information – A need for a European hand? – Paphos, September 10-11 2007

ConsiderationsConsiderations There is There is definitely definitely demanddemand for such re-use of CH for such re-use of CH

digital contentdigital content However . . .However . . .

The The DirectiveDirective 2003/98/EC Article 1 specifically states 2003/98/EC Article 1 specifically states that that itit shall not apply to: “Documents held by cultural shall not apply to: “Documents held by cultural establishments such as museums, libraries, archives, establishments such as museums, libraries, archives, orchestras, operas, ballets and theatresorchestras, operas, ballets and theatres.”.” (article 1-f) (article 1-f)

The Cultural HeritageThe Cultural Heritage content content is is not not available from theavailable from the public sectorpublic sector for use and re-use for use and re-use andand it it is is not not all all digitaldigital

Potential re-users Potential re-users are usually not attempting as they are usually not attempting as they are faced with are faced with strict legal issuesstrict legal issues (copyrights – (copyrights – ownership)ownership)

Re-use is Re-use is not not occurringoccurring anyway irrespective of the anyway irrespective of the DirectiveDirective

Exploitation of Cultural Heritage Information – A need for a European hand? – Paphos, September 10-11 2007

Legal issues in GRLegal issues in GR ALL antiquities belong to Greece and are governed by Law ALL antiquities belong to Greece and are governed by Law

#3028/2002, which replaced one of the earliest laws of the #3028/2002, which replaced one of the earliest laws of the modern Greek Statemodern Greek State

Their ownership is also described in the intellectual rights Their ownership is also described in the intellectual rights law (#2121/1993),law (#2121/1993),but above all . . .

They belong to the . . . Archaeologist who discovered themThey belong to the . . . Archaeologist who discovered them although . . .

There are 10 million tourists per year andThere are 10 million tourists per year and Thousands of interested parties (museums, scientists, etc.)Thousands of interested parties (museums, scientists, etc.)

Exploitation of Cultural Heritage Information – A need for a European hand? – Paphos, September 10-11 2007

No mention at all to • digital content• orphan works

Are these “PSI” ??Are these “PSI” ?? A multitude of (digital) products is rapidly producedA multitude of (digital) products is rapidly produced A multitude of experts (other than archaeologists) A multitude of experts (other than archaeologists)

were involved in their productionwere involved in their production Their re-use does not -by any means- affect the Their re-use does not -by any means- affect the

integrity of the prototypeintegrity of the prototype It is estimated that there is increasing demand for It is estimated that there is increasing demand for

their re-use for the benefit of all parts (industry and their re-use for the benefit of all parts (industry and society)society)

Copyright issues may easily be resolvedCopyright issues may easily be resolved After all CH belongs to mankindAfter all CH belongs to mankind

Exploitation of Cultural Heritage Information – A need for a European hand? – Paphos, September 10-11 2007

For the above to become true . . .For the above to become true . . .

Raw Raw and and processedprocessed digital content should digital content should be available both off-line AND on-linebe available both off-line AND on-line

StandardsStandards should be developed and should be developed and adopted, both adopted, both technologicaltechnological and and legallegal

A relevant European A relevant European bodybody should perhaps should perhaps be establishedbe established

A A digital librarydigital library should be established with should be established with sub-libraries in all EU member statessub-libraries in all EU member states

Exploitation of Cultural Heritage Information – A need for a European hand? – Paphos, September 10-11 2007