A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Spherical Photogrammetry for Cultural Heritage Metric Documentation: A Critical Review
In addition to the well established standard photogrammetric techniques, another type of photogrammetry has been proposed by the Author, the so-called PSP (Panoramic Spherical Photogrammetry). This photogrammetric technique is particularly suitable for architectural surveys. Multi-image spherical panoramas are used which are partly overlapping digital images taken from the same point in order to obtain an all-round 360° cartographic representation of the sphere. There are many advantages: the speed of execution, the drastic reduction of traditional photogrammetric models, the completeness of the documentation, the FOV can be 360° wide, the absence of distortion, and most importantly the low-cost, thereby allowing a photogrammetric survey to be carried out which is, fast, complete, accurate and inexpensive. After a description of the principles of the PSP technique, a few examples are shown. Up to now some 500 projects have been run, ranging from the very initial phase of taking photographs, to the final rendered model. The procedure is very quick in the first phase while, on the contrary, it is time consuming in the orientation phase and above all in restitution, as it is still fully manual. Although only a few projects have been finished, this is precisely the rationale behind the technique: to build up an archive of oriented images (panoramas) which can be retrieved, observed, and used when required.
Spherical Photogrammetry for Cultural Heritage Metric Documentation: A Critical Review
In addition to the well established standard photogrammetric techniques, another type of photogrammetry has been proposed by the Author, the so-called PSP (Panoramic Spherical Photogrammetry). This photogrammetric technique is particularly suitable for architectural surveys. Multi-image spherical panoramas are used which are partly overlapping digital images taken from the same point in order to obtain an all-round 360° cartographic representation of the sphere. There are many advantages: the speed of execution, the drastic reduction of traditional photogrammetric models, the completeness of the documentation, the FOV can be 360° wide, the absence of distortion, and most importantly the low-cost, thereby allowing a photogrammetric survey to be carried out which is, fast, complete, accurate and inexpensive. After a description of the principles of the PSP technique, a few examples are shown. Up to now some 500 projects have been run, ranging from the very initial phase of taking photographs, to the final rendered model. The procedure is very quick in the first phase while, on the contrary, it is time consuming in the orientation phase and above all in restitution, as it is still fully manual. Although only a few projects have been finished, this is precisely the rationale behind the technique: to build up an archive of oriented images (panoramas) which can be retrieved, observed, and used when required.
Spherical Photogrammetry for Cultural Heritage Metric Documentation: A Critical Review
Research for Development
Toniolo, Lucia (editor) / Boriani, Maurizio (editor) / Guidi, Gabriele (editor) / Fangi, Gabriele (author)
2014-10-17
11 pages
Article/Chapter (Book)
Electronic Resource
English
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