Dipartimento di Ingegneria Meccanica, Energetica e Gestionale - Tesi di Dottorato
Permanent URI for this collectionhttps://lisa.unical.it/handle/10955/100
Questa collezione raccoglie le Tesi di Dottorato afferenti al Dipartimento di Ingegneria Meccanica, Energetica e Gestionale dell'Università della Calabria.
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Item Strumenti e metodi di prototipazione virtuale nella progettazione dell'autoveicolo: dal reverse engineering all'integrazione FEM/Multibody(2006-11-24) Vena, Gianpiero; Luchi, Maria Laura; Muzzupappa, MaurizioItem Studio del comportamento dinamico dei veicoli da competizione mediante analisi parametrica in ambiente multibody(2006-11-24) Matrangolo, Giuseppe; Luchi, Maria Laura; Muzzupappa, MaurizioItem Thermomechanical characterization of Nickel-Titanium shape memory alloys(2007-11-23) Falvo, Andrea; Luchi, Maria Laura; Fugiuele, FrancoItem Analisi tecnico-sperimentale delle metodologie transitori di identificazione dei parametri caratteistici dei collettori solari termici a liquido(2008) Cucumo, Silvio; Rizzuti, Sergio; Marinelli, ValerioItem Identation-Based fracture characterization of brittle materials(2008-11-21) Leonardi, Alessandro; Rizzuti, Sergio; Furgiuele, Franco; Wood, Robert J.K.; Syngellakis, StavrosItem Interazione Uomo Macchina nella Progettazione Industriale: l’utilizzo della Realtà Virtuale come Strumento di Progettazione(2008-11-21) Pasquino, Germana; Rizzuti, Sergio; Luchi, Maria LauraItem Development of static and dynamic techniques for the elastic characterization of isotropic and composite material(2008-11-21) Stigliano, Giambattista; Rizzuti, Sergio; Pagnotta, LeonardoItem Un approccio analitico basato sui grafi per lo studio funzionale di prodotti industriali(2009-11-16) Lofranco, Francesco; Rizzuti, SergioItem Methodologies to enhance performances in sheet metal forming processes(2009-11-16) Manco, Giuseppe Leonardo; Rizzuti, Sergio; Filice, LuiginoItem Acquisizione ed elaborazione dati di irraggiamento ed illuminamento solare nuove correlazioni di calcolo(2010) De Rose, Alessandro; Marinelli, V.; Rizzuti, S.Item Bioreattori per l’ingegnerizzazione di tessuto per grandi difetti ossei(2010) De Napoli, Ilaria Ester; de Cindio, Bruno; Catapano, GerardoItem Visuo-Haptic displays for Interactive Mixed Prototyping(2010-11-23) Francesco Cosco, Francesco; Otaduy, Miguel; Muzzupappa, Maurizio; Rizzuti, SergioItem Workplace design methodology based on modeling & simulationRisorsa elettronica(2010-11-23) Cimino, Antonio; Longo, Francesco; Rizzuti, SergioItem Progettazione end-effector per chirurgia laparoscopica(2010-11-28) Perrelli, Michele; Danieli, Guido; Rizzuti, SergioItem Mechanisrns and modeling of white and dark layersı formation in hard machining of AISI 52100 steels(2011) Caruso, Serafino; Rizzuti, Sergio; Umbrello, DomenicoItem Una metodologia per la misurazioni della planarità per mezzo di macchine a controllo di coordinate(CMM)(2011) Rosa, Raffaele; Rizzuti, SergioItem Metodi e tool per l'ottimizzazione della calibrazione e della validazione dei sistemi di controllo motore(2012-09-29) Guzzo, Alessandra; Rizzuti, Sergio; Bova, Sergio; Riegel, AlessandroItem Innovative methodologies for multi-view 3D reconstruction of cultural heritage(2012-11-15) Gallo, Alessandro; Rizzuti, Sergio; Bruno, FabioThis dissertation focuses on the use of multi-view 3D reconstruction techniques in the field of cultural heritage. To name just a few applications, a digital 3D acquisition can be used for documentation purposes in the event of destruction or damage of an artefact, or for the creation of museums and virtual tourism, education, structural studies, restoration, etc... All these applications require high precision and accuracy to reproduce the details, but there are other important characteristics such as low cost, ease of use, the level of knowledge needed to operate the systems, which have also to be taken into account. At the present time, the interest is growing around the use of images for the digital documentation of cultural heritage, because it is possible to obtain a 3D model by the means of common photographic equipment. In this work, we have investigated multi-view 3D reconstruction techniques in two specific fields that have not been treated in literature: the 3D reconstruction of small objects (from few mm to few cm) and the survey of submerged archaeological finds. As for the 3D reconstruction of small objects, a new methodology based on multi-view and image fusion techniques has been developed. The used approach solves the problems related to the use of macro lenses in photogrammetry, such as the very small depth of field and the loss of quality due to diffraction. Since image matching algorithms cannot work on blurred areas, each image of the sequence is obtained by merging pictures acquired at different focus planes. The methodology has been applied on different case studies, and the results have shown that it is possible to reconstruct small complex objects with a resolution of 20 microns and an accuracy of 10 microns. For which concerns the underwater imaging, a preliminary comparative study between active and passive techniques in turbid water has been conducted. The experimental setup consists in a 3D scanner designed for underwater survey, composed by two cameras and a projector. An analysis on the influence of the colour channel has been conducted, showing how it is possible to obtain a cleaner reconstruction by using the green channel only. The results have shown a denser point cloud when using the passive technique, characterized by missing areas since the technique is more sensible to turbidity. By contrast, the reconstruction conducted with the active technique have shown more stable results as the turbidity increases, but a greater noise. A multi-view passive technique has been experimented for the survey of a submerged structure located at a depth of 5 meters, on a seabed characterized by poor visibility conditions and the presence of marine flora and fauna. We performed an analysis of the performances of a multi-view technique commonly used in air in the first instance, highlighting the limits of the current techniques in underwater environment. In such conditions, in fact, it has not been possible to obtain a complete reconstruction of the scene. The second stage of the process was the testing of image enhancement algorithms in order to improve matching performances in poor visibility conditions. In particular, a variational analysis of the factors that influence the quality of the 3D reconstruction, such as the image resolution and the colour channel, has been performed. For this purpose, the data related to the parameters of interest, such as the number of features extracted or the number of oriented cameras, have been evaluated. The statistical analysis has allowed to find the best combination of factors for a complete and accurate 3D reconstruction of the submerged scenario.Item Studio di modelli di calcolo della luminanza del cielo e confronto con dati sperimentali(2012-11-15) Mele, Marilena; Rizzuti, Sergio; Marinelli, ValerioItem Una metodologia integrata per la valutazione di sostenibilità dei prodotti industriali nelle prime fasi della progettazione(2012-11-15) Rocco, Claudio; De Napoli, Luigi; Rizzuti, Sergio