Experiences in photogrammetric archaeological recording

dc.contributor.author	Μαυρομάτη, Δήμητρα	el
dc.contributor.author	Πέτσα, Έλλη	el
dc.contributor.author	Καρράς, Γιώργος	el
dc.date.accessioned	2015-01-28T18:37:17Z
dc.date.available	2015-01-28T18:37:17Z
dc.date.issued	2015-01-28
dc.identifier.uri	http://hdl.handle.net/11400/4954
dc.rights	Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/us/	*
dc.subject	Archaeology
dc.subject	DEM/DTM
dc.subject	Laser scanning
dc.subject	Orthophotography
dc.subject	Bundle
dc.subject	Non-Metric
dc.subject	Αρχαιολογία
dc.subject	Σαρωτής λέιζερ
dc.subject	Ορθοφωτογραφία
dc.subject	Δέσμη
dc.title	Experiences in photogrammetric archaeological recording	en
heal.type	conferenceItem
heal.classification	Technology
heal.classification	Photogrammetry
heal.classification	Τεχνολογία
heal.classification	Φωτογραμμετρία
heal.classificationURI	http://id.loc.gov/authorities/subjects/sh85133147
heal.classificationURI	http://skos.um.es/unescothes/C02980
heal.classificationURI	N/A-Τεχνολογία
heal.classificationURI	N/A-Φωτογραμμετρία
heal.keywordURI	http://lod.nal.usda.gov/68448
heal.language	en
heal.access	free
heal.recordProvider	Τ.Ε.Ι. Αθήνας, Σχολή Τεχνολογικών Εφαρμογών, Τμήμα Μηχανικών Πληροφορικής και Μηχανικών Τοπογραφίας & Γεωπληροφορικής	el
heal.publicationDate	2003-09-30
heal.bibliographicCitation	Mavromati, D., Petsa, E.and Karras, G. (2003). Experiences in photogrammetric archaeological recording. XIX CIPA International Symposium, Antalya, Turkey, 30/9- 4/10/2003 pp. 666-669. Available from: http://cipa.icomos.org/fileadmin/template/doc/antalya/180.pdf	en
heal.abstract	Photogrammetric textured representations of archaeological sites, and above all orthorectification, combine geometric accuracy with visual detail (regarding damage or decay), thus providing a suitable basis for conservation. Yet, orthoprojection in archaeology still poses difficult problems. At the examples of two ancient Greek sites, certain issues are discussed and illustrated. First, in most cases sites need to be recorded from considerable heights above ground with special low-cost camera platforms (balloon, modified fishing-rod etc.). A usual consequence of ‘unstable’ camera elevators is poor control over image rotations, responsible for irregular strip geo-metry; bundle adjustment is further complicated by unknown interior orientation of lightweight non-metric cameras and strong dis-tortions of wide-angle lenses. A second crucial aspect dealt with here is the authors’ approach for precise surface modeling to ensure products of both geometric accuracy and high iconic quality; this entails surface description through a careful combination of break-lines and densely sampled spot elevations for handling edges and surface discontinuities. Regarding laser scanning, now being exten-sively tried in the context of archaeology, experiments carried out here confirmed that it could indeed replace tedious photogramme-tric 3D modeling in several cases. However, it is rather clear that laser scanning cannot in fact totally replace photogrammetric mo-deling. This is due not only to problems posed by shape, size, location and surroundings of many archaeological objects, but also to problems emerging mainly with respect to edges. It is concluded that simple means of image acquisition and careful photogrammetric handling can produce results of high geometric and visual quality, while tiresome photogrammetric modeling can partly (but some-times cannot) be replaced by laser scanning. Functional synergy of the two approaches is a delicate matter to be further investigated.	en
heal.fullTextAvailability	true
heal.conferenceName	Experiences in photogrammetric archaeological recording. XIX CIPA International Symposium,	en
heal.conferenceItemType	full paper