241 research outputs found
Point cloud come sistema informativo. Il trattamento della nuvola di punti in un rilievo integrato finalizzato alla documentazione digitale del Cultural Heritage
No full textLa necessità di una documentazione validata ed economicamente sostenibile del Cultural Heritage (CH) invita alla ricerca di metodologie speditive per la digitalizzazione, per la documentazione, la diagnostica e la tutela. Attraverso l’uso di nuove tecnologie è possibile creare un vero e proprio fac-simile dell’oggetto, fedele all’originale, misurabile e oggettivo.
L’obiettivo di questo lavoro di tesi è la definizione di best-practices, attraverso la sperimentazione di procedure di integrazione strumentale e analitica per trasformare il dato grezzo della nuvola di punti in informazione utile, senza passare per la fase di modellazione e lavorando sui dati tridimensionali acquisiti.
La prima fase ha visto l’analisi di diversi casi studio per l’individuazione di punti deboli e punti di forza. Il successivo lavoro di ricerca è stato condotto sulla matrice di informazioni contenuta nel listato della nuvola di punti. Nella seconda parte sono descritte procedure di integrazione multi-strumentale. La terza parte, condotta durante lo stage al laboratorio MAP del CNRS di Marsiglia, mostra come a partire dalle sole grandezze geometriche sia possibile estrapolare informazioni per mezzo di analisi e operazioni di clustering, generando cartografie automatiche e quantitative, finalizzate all’implementazione di software per annotazioni 3D su nuvola di punti. Infine, nel progetto “ArcheoFano” si mostra come gli output delle integrazioni possano confluire in differenti metodologie di rappresentazione.
In conclusione, questo lavoro giunge alla definizione di pratiche condivisibili e riutilizzabili per la digitalizzazione del CH, tramite la creazione di un sistema controllato e calibrato di dati integrati e l’estrapolazione semi-automatica di informazioni per la diagnostica. Questa ricerca si inserisce perfettamente nelle attuali politiche internazionali di gestione e tutela del CH e dimostra come una campagna diffusa di digitalizzazione tramite point cloud sia un mezzo efficace.The necessity of validated and economically sustainable documentation of Cultural Heritage (CH) invites to research expeditious methods for the digitization, documentation, diagnostics and protection. By using new technologies it is possible to create a real facsimile of the object, true to the original, measurable and objective.
The aim of this thesis is the definition of best practices, through the testing of procedures of instrumental and analytical integration to transform the raw data of the point cloud into useful information, without going through the modeling phase and working on the acquired 3D data.
The first stage consists in the analysis of different case studies for the identification of weak and strength points. The following research was conducted on the matrix of information contained in the listing of the point cloud. In the second part are described procedures of multi-instrumental integration. The third part, conducted during the internship at the MAP laboratory of CNRS in Marseille, shows how information can be estimated starting just from geometric characteristics through analyses and clustering operations. This generates automated and quantitative maps, aimed at the implementation of software for 3D annotations on the point cloud. Finally, in the "ArcheoFano" project it is shown how the outputs of the integrations can flow into different methods of representation.
In conclusion, this paper comes to the definition of shareable and reusable practices for digitization of CH, to the creation of a controlled and calibrated system of integrated data and to the semi-automatic extrapolation of information for diagnostics. This research fits perfectly in the current international political of management and protection of CH and demonstrates how a widespread campaign of scanning using point cloud is an effective means
Tecniche laser scanning per il rilievo delle fortificazioni: il Torrione di Francesco di Giorgio Martini a Cagli
No full textIntegrated survey for digital documentation and monitoring of historic buildings: the case study of San Filippo Church in Cagli
No full textUn rilievo integrato per la documentazione digitale e il monitoraggio dell’edilizia storica: il caso della chiesa di San Filippo a Cagli,
No full textALL-IN-ONE LASER SCANNING METHODS FOR SURVEYING, REPRESENTING AND SHARING INFORMATION ON ARCHAEOLOGY. VIA FLAMINIA AND THE FURLO TUNNEL COMPLEX
No full textThe aim of this paper is to describe the results of the laser scanner survey of an archaeological complex, aimed at knowledge,
documentation and diagnostic operations to make premises secure. Archaeology has always been the most complex subject where the
discipline of surveying is continually being put to the test and experimented with. The development in laser scanner technologies has
led to an extremely important turning point in this field. Complex geometrical shapes or irregular surfaces, such as those in
archaeology, are defined through surfaces that can be directly extrapolated from the point cloud with extremely high precision,
allowing even the finest details to be mapped. The precision of this surveying technique together with the wide range of data that can
be acquired and represented provide several opportunities for communication and investigation. This experimental work has
concentrated on the Furlo tunnel complex, located along one of the most important infrastructural arteries from Roman antiquity, the
Via Flaminia. The need in this case was to be able to acquire the entire rocky complex, extending the scan area as far as possible so
as to assess the whole system in its entirety. The results of our metric and morphological survey provide an excellent basis for record
the situation as it is today, so as to establish the initial temporal step to be used in future monitoring programmes. The accuracy of
the survey allows static assessments and effective planning for future safety-oriented projects
Virtual Architecture in the Free Space
No full textThe multi-projection image techniques offer interesting possibilities for architecture communication and augmented reality. This poster shows experimental solutions for pseudo-holographic projection 360 degree so-called "holographic bell", and projection screen. The more intense research regarding the technical and technological possibilities and the materials of the semi-reflecting plates is being carried out in the EARCOM laboratory of DICEA of Univpm in Ancona. The main goal is to design a good container, ensuring that the content is predominant: low-cost bells, with the maximum projection surface and minimizing the structur
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