An open-source educational software for basic photogrammetric tasks

dc.contributor.author	Καλησπεράκης, Ηλίας	el
dc.contributor.author	Γραμματικόπουλος, Λάζαρος	el
dc.contributor.author	Πέτσα, Έλλη	el
dc.contributor.author	Καρράς, Γιώργος	el
dc.date.accessioned	2015-01-28T21:50:33Z
dc.date.available	2015-01-28T21:50:33Z
dc.date.issued	2015-01-28
dc.identifier.uri	http://hdl.handle.net/11400/4991
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	Matlab
dc.subject	Monoscopic measurements
dc.subject	Camera calibration
dc.subject	Κάμερας βαθμονόμησης
dc.title	An open-source educational software for basic photogrammetric tasks	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://id.loc.gov/authorities/subjects/sh2006001819
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	2006-11-09
heal.bibliographicCitation	Kalisperakis, I., Grammatikopoulos, L., Petsa, E. and Karras, G. (2006). An open-source educational software for basic photogrammetric tasks. Proceedings of the FIGISPRS-ICA International Symposium on “Modern Technologies, Education & Professional Practice in Geodesy & Related Fields”, Sofia, 09-10/11/2006 , pp. 581-586. Available from: http://portal.survey.ntua.gr/main/labs/photo/staff/gkarras/Karras_Sofia_06.pdf	en
heal.abstract	The current implementation of an educational package for basic photogrammetric operations is out- lined. The context of this open-source software (MPT), developed in Matlab, is primarily the intro-ductory course of Photogrammetry. Thus, the scope here is not to show students ‘how to do it’ but rather to clarify ‘what is actually being done’ in every step. In this sense, the stress lies mainly on basic photogrammetric adjustments. Students can work with one or two images at a time and per-form monoscopic measurements of image points, lines or polylines. Exterior orientation is handled in a variety of ways: space resection with or without camera calibration (with or without estimation of radial lens distortion); linear and non-linear DLT approach (again with or without lens distortion); relative orientation and absolute orientation. Detailed results are presented, including standard error of the adjustment, residuals, covariance matrix of estimated parameters, correlations. Individual ob-servations may be optionally excluded to study their effect on the adjustment. For fully oriented ste-reo pairs, 3D reconstruction is then possible. The 3D plot may be observed in the program’s 3Dviewer and exported in DXF format. Besides, 2D projective transformation is also possible, allowing rectification of vector data or resampling of digital images. Other features (e.g. image enhancement tools or self-calibrating bundle adjustment) are already implemented and will soon be incorporated.	en
heal.fullTextAvailability	true
heal.conferenceName	FIGISPRS-ICA International Symposium on Modern Technologies, Education & Professional Practice in Geodesy & Related Fields	en
heal.conferenceItemType	full paper