On multi-image reconstruction from historic photographs

dc.contributor.author	Καλησπεράκης, Ηλίας	el
dc.contributor.author	Πέτσα, Έλλη	el
dc.contributor.author	Ρόβα, Μαργαρίτα	el
dc.contributor.author	Καρράς, Γιώργος	el
dc.date.accessioned	2015-01-28T20:00:38Z
dc.date.available	2015-01-28T20:00:38Z
dc.date.issued	2015-01-28
dc.identifier.uri	http://hdl.handle.net/11400/4966
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	Calibration
dc.subject	Orientation
dc.subject	Non-Metric
dc.subject	Bundle
dc.subject	Reconstruction
dc.subject	Visualization
dc.subject	Architectural Heritage Conservation
dc.subject	Βαθμονόμηση
dc.subject	Προσανατολισμός
dc.subject	Δέσμη
dc.subject	Ανοικοδόμηση
dc.subject	Οραματισμός
dc.subject	Αρχιτεκτονική διατήρησης της πολιτιστικής κληρονομιάς
dc.title	On multi-image reconstruction from historic photographs	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.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
heal.bibliographicCitation	Kalisperakis, I., Rova, M., Petsa, E. and Karras, G. (2003). On multi-image reconstruction from historic photographs. XIX CIPA International Symposium, Antalya, Turkey, pp. 216-219. Available from: http://cipa.icomos.org/fileadmin/template/doc/antalya/63.pdf	en
heal.abstract	The ultimate purpose of this work is to reconstruct photogrammetrically a distinguished building in the centre of Athens, which has been torn down years ago. Five old photographs were available taken apparently with the same camera, the nominal calibration para-meters of which could be somehow ‘guessed’. As a first step, it was decided to employ our own bundle-adjustment software, which works within a commercial CAD environment. Besides, unlike most commercially available 3D reconstruction software, it allows full control over the whole adjustment process (by presenting individual image point residuals, producing RMS errors for check points, accommodating additional calibration parameters etc.). A second task was to compare these results with PhotoModeler, in order to evaluate this widely used (but in certain aspects ‘obscure’) tool against a rigorous photogrammetric approach. Besides solutions with no control information, a few full and partial control points were established from existing architectural drawings, allowing self-cali-bration procedures. The two software tools produced essentially equivalent results, thus validating the precision of the PhotoModeler approach. However, certain additional features of a proper bundle adjustment program (e.g. recovery of radial lens distortion, self-ca-libration with minimal or unconventional control), discussed here, may allow a fuller exploitation of the powerful reconstruction and visualisation tools of the PhotoModeler type. It was confirmed that, using suitable software, rigorous approaches can be applied to historic images, and results of reasonable precision may be expected, limited only by possible inaccuracies in scale.	en
heal.fullTextAvailability	true
heal.conferenceName	XIX CIPA International Symposium	en
heal.conferenceItemType	full paper