Pubblicazioni

A versatile optical profilometer based on conoscopic holography sensors for acquisition of specular and diffusive surfaces in artworks  (2017)

Autori:
Gaburro, Nicola; Marchioro, Giacomo; Daffara, Claudia
Titolo:
A versatile optical profilometer based on conoscopic holography sensors for acquisition of specular and diffusive surfaces in artworks
Anno:
2017
Tipologia prodotto:
Contributo in atti di convegno
Tipologia ANVUR:
Contributo in Atti di convegno
Lingua:
Inglese
Nome rivista:
PROCEEDINGS OF SPIE, THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING
ISSN Rivista:
0277-786X
N° Volume:
10331
Titolo del Convegno:
Optics for Arts, Architecture, and Archaeology VI 2017
Luogo:
Munich, Germany
Periodo:
28-29 June 2017
ISBN:
978-151061107-8
Intervallo pagine:
103310A-103310A-9
Parole chiave:
optical profilometry, conoscopic holography, surface analysis, portable instrumentation, artworks
Breve descrizione dei contenuti:
Surface metrology of artworks requires the design of suitable devices for in-situ non-destructive measurement together with reliable procedures for an effective analysis of such non-engineered variegate objects. To advance the state-of-the-art it has been implemented a versatile optical micro-profilometry taking advantage of the adaptability of conoscopic holography sensors, able to operate with irregular shapes and composite materials (diffusive, specular, and polychrome) of artworks. The scanning technique is used to obtain wide field and high spatially resolved areal profilometry. The prototype has a modular scheme based on a set of conoscopic sensors, extending the typical design based on a scanning stage and a single probe with a limited bandwidth, thus allowing the collection of heights data from surface with different scales and materials with variegate optical response. The system was optimized by characterizing the quality of the measurement with the probes triggered in continuous scanning modality. The results obtained on examples of cultural heritage objects (2D paintings, 3D height-relief) and materials (pictorial, metallic) demonstrate the versatility of the implemented device.
Id prodotto:
100051
Handle IRIS:
11562/972108
ultima modifica:
20 marzo 2018
Citazione bibliografica:
Gaburro, Nicola; Marchioro, Giacomo; Daffara, Claudia, A versatile optical profilometer based on conoscopic holography sensors for acquisition of specular and diffusive surfaces in artworks in «PROCEEDINGS OF SPIE, THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING» vol. 10331  in Optics for Arts, Architecture, and Archaeology VIAtti di "Optics for Arts, Architecture, and Archaeology VI 2017" , Munich, Germany , 28-29 June 2017 , 2017pp. 103310A-103310A-9

Consulta la scheda completa presente nel repository istituzionale della Ricerca di Ateneo IRIS

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