Please use this identifier to cite or link to this item: http://hdl.handle.net/11400/4955
Title: Metric information from single uncalibrated images
Authors: Καρράς, Γιώργος
Πέτσα, Έλλη
Item type: Conference publication
Conference Item Type: Full Paper
Keywords: Camera calibration;Lines;Camera orientation;Object reconstruction;Βαθμονόμηση μηχανής λήψης;Προσανατολισμός μηχανής λήψης;Ανακατασκευή αντικειμένου;Γραμμές
Subjects: Technology
Photogrammetry
Τεχνολογία
Φωτογραμμετρία
Issue Date: 28-Jan-2015
3-Oct-1999
Date of availability: 28-Jan-2015
Abstract: In cases of damaged or destroyed buildings, single images can be a basic or the only witness available for documenta-tion, restoration or reconstruction. Such images have mostly not been taken for purpose of geometric documentation. Thus, it is usually not possible to employ standard photogrammetric techniques. This contribution addresses the ‘unfa-vourable’ case of single images with no available information on camera/image geometry and without geodetic control. It is merely assumed that directions are identified on the object (defining three vanishing points). Line photogrammetry is used to estimate the main interior orientation parameters and the rotational matrix, which provide basic information for 3D reconstruction. The approach is investigated with test images. A practical example, referring to the Athens Municipal Theater demolished some sixthy years ago, is also included. It is concluded that, in principle, careful treatment of single images allows in such cases to extract their inscribed metric information with ‘reasonable’ accuracy.
Language: English
Citation: Karras, G. and Petsa, E. (1999). Metric information from single uncalibrated images. XVII CIPA International Symposium, Olinda, 3-6/10/1999. Available from: http://portal.survey.ntua.gr/main/labs/photo/staff/gkarras/Karras_Cipa_1999.pdf
Conference: XVII CIPA International Symposium
Access scheme: Publicly accessible
License: Αναφορά Δημιουργού-Μη Εμπορική Χρήση-Όχι Παράγωγα Έργα 3.0 Ηνωμένες Πολιτείες
URI: http://hdl.handle.net/11400/4955
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