Abstract
Abstract. The work presented here focuses on the analysis of the potential of spherical images acquired with specific cameras for documentation and three-dimensional reconstruction of Cultural Heritage. Nowadays, thanks to the introduction of cameras able to generate panoramic images automatically, without the requirement of a stitching software to join together different photos, spherical images allow the documentation of spaces in an extremely fast and efficient way. In this particular case, the Nikon Key Mission 360 spherical camera was tested on the Tolentini’s cloister, which used to be part of the convent of the close church and now location of the Iuav University of Venice. The aim of the research is based on testing the acquisition of spherical images with the KM360 and comparing the obtained photogrammetric models with data acquired from a laser scanning survey in order to test the metric accuracy and the level of detail achievable with this particular camera. This work is part of a wider research project that the Photogrammetry Laboratory of the Iuav University of Venice has been dealing with in the last few months; the final aim of this research project will be not only the comparison between 3D models obtained from spherical images and laser scanning survey’s techniques, but also the examination of their reliability and accuracy with respect to the previous methods of generating spherical panoramas. At the end of the research work, we would like to obtain an operational procedure for spherical cameras applied to metric survey and documentation of Cultural Heritage.
Highlights
In the last few years, there has been a rapid development of testing panoramic images and spherical photogrammetry applied to Cultural Heritage, both for purely commercial purposes and for tourism promotion, and for threedimensional metric documentation, especially in the Architectural and Archaeological field (Kwiatek et al, 2015; Paris, 2015; Kwiatek et al, 2014; Cannella, 2013; Fangi, 2012; D’Annibale et al, 2009; Zara, 2004)
This work is part of a wider research project that the Photogrammetry Laboratory of the Iuav University of Venice has been dealing with in the last few months; the final aim of this project will be the comparison between 3D models obtained from spherical images and laser scanning survey’s techniques, and the examination of their reliability and accuracy with respect to the previous methods of generating spherical panoramas
At the end of the research work, we would like to obtain an operational procedure for spherical cameras applied to metric survey and documentation of Cultural Heritage: the work here presented is intended as a preliminary approach in the field of spherical photogrammetry with low-cost acquisition systems
Summary
In the last few years, there has been a rapid development of testing panoramic images and spherical photogrammetry applied to Cultural Heritage, both for purely commercial purposes and for tourism promotion, and for threedimensional metric documentation, especially in the Architectural and Archaeological field (Kwiatek et al, 2015; Paris, 2015; Kwiatek et al, 2014; Cannella, 2013; Fangi, 2012; D’Annibale et al, 2009; Zara, 2004). The metric documentation of Cultural Heritage with multiimage spherical panorama has already achieved good and accurate results in the past (Fangi, 2017; Fangi, 2015; Barazzetti et al, 2010; Fangi, 2010; Luhmann, 2010; Fangi, 2009; Fangi, 2007; Schneider et al, 2005). In the last few years, the software tools have had a considerable increase in the field of spherical photogrammetry and, with some limits, there are some software based on Structure from Motion algorithms able to manage and
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