Gabriele Fangi

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ABSTRACT It is well know that it is possible to use the vanishing point geometry to assess the orientation parameters of the photographic image. Here we propose a numerical or graphical procedure to estimate such parameters, assuming that in the imaged object are present planar surfaces, straight-line edges, and right angles. In addition, by means of the(More)
In this article, we present the results of the photogrammetric surveys of two important monuments, the Roman Theatre in Sabratha, Libya, and San Galgano Abbey, in Italy. The surveys were performed with a new photogrammetric technique, Spherical Photogrammetry, developed by Gabriele Fangi [2007, 2008, 2009, 2010]. The method is based on so-called spherical(More)
The derivation of 3D metric information from spherical images for interactive exploration and realistic 3D modeling is receiving great attention due to their high-resolution content, large field-of-view, lowcost, easiness, rapidity and completeness. We present a methodology for accurate 3D reconstruction from spherical (panoramic) images acquired by(More)
Completeness, speed, accuracy are some aspects of the laser scanning system for the acquisition of complex structures and sites. Complete geometry of exposed surface is remotely captured in minutes in the form of dense, accurate “3D point clouds”, ready for immediate use. This technique is used for architecture, virtual reality, heritage preservation and(More)
Multi-image panoramas are normally used extensively for virtual tours and documentation of Cultural Heritage for their easiness and completeness. Moreover they have metric capabilities enabling the 3d evaluation of an object provided at least two panoramas (Fangi, 2007, 2008). The procedure already very well tested, is highly efficient and fast, although(More)
In the last decade, the new technology of laser scanning has improved the architectural and archaeological survey. This instrument measures millions and millions of points in a short time. But the more interesting and above all more difficult goal is, up till now, the data processing. Using several procedures and testing some softwares it is possible to(More)
In surveying missions the volume and the weight of the surveying equipment are often a problem. In a previous work, the A. proposed what he called blind traverse for control network assessment in close-range photogrammetry. It is a procedure that forms the so-called topographic models, linking together a couple of Theodolite Stations by their observations(More)
Here are exposed the results of the photogrammetric surveys of two noticeable monuments, the Roman Theatre in Sabratha, Libya and San Galgano Abbey, in Italy. They have been performed with a new photogrammetric technique, the Spherical Photogrammetry, set up by (Fangi, 2007, 2008, 2009, 2010). Such a method is based on the so-called spherical panoramas.(More)