Laser scanning e photo scanning. Tecniche di rilevamento per la documentazione 3D di beni architettonici ed archeologici

Angelini, A. and Gabrielli, R. (2013) Laser scanning e photo scanning. Tecniche di rilevamento per la documentazione 3D di beni architettonici ed archeologici. Archeologia e Calcolatori, 24. pp. 379-394. ISSN 1120-6861

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Laser scanner and digital photogrammetric systems (photo scanning) must be considered at present two of the main techniques used for archaeological and architectural surveying. The integration of both 3D scanning systems allowed us to improve the scientific knowledge, the management, the use and the safeguarding of Cultural Heritage. The aim of this article is to identify analogies and differences between the two surveying techniques applied to different archaeological contexts. Starting from a general introduction to the concept of measurement and the management of the data acquired from different techniques of surveying, the article focuses on the laser scanner applications with particular attention on the intrinsic properties of the instrument, the problems of measurement and the methodology used during the survey. The second part is focused on the digital photogrammetry applied on a particular archaeological context. Digital photogrammetry was developed and experimented in order to acquire territorial data quickly. The optimization of the working speed, while maintaining accuracy of data, means cost savings and an optimal use of funds. Our workgroup decided to transfer that methodology to the archaeological excavations of Rome Metro Line C in collaboration with some public institutions and private companies. The final results have produced 2D and 3D graphic documentations of all the archaeological area up to highly-accurate ortho-recti ??ed images. Point clouds allowed us to simultaneously view a general 3D model of all open archaeological areas, providing an opportunity for observation and an analysis not possible by other means. Each area can be studied together with the others in a global view of the excavation. Every stratigraphic unit can be displayed in the same area and switched on in the same way as a layer.

Item Type: Article
Uncontrolled Keywords: Computer Graphics IP CAD; Survey and excavations
Subjects: 900 Storia, Geografia e discipline ausiliarie > 930 Storia dei mondo antico fino al 499 ca. > 930.1 Archeologia (Classificare qui la Storia fino al 4000 a.C., l'Archeologia preistorica, le opere interdisciplinari sull'Archeologia) > 930.102 Archeologia - Opere miscellanee > 930.1028 Archeologia – Tecniche, metodologie, apparecchi e strumenti (comprende: Archeometria) > 930.10285 Archeologia – Applicazioni informatiche (comprende: tecniche di datazione)
Depositing User: Dott.ssa Paola Moscati
Date Deposited: 23 May 2014 07:47
Last Modified: 20 Apr 2017 09:41

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