Automatic Analysis of UV-Induced Fluorescence Imagery of Historical Violins

Dondi, Piercarlo; Lombardi, Luca; Invernizzi, Claudia; Rovetta, Tommaso; Malagodi, Marco; Licchelli, Maurizio

doi:10.1145/3051472

Cited by 20 publications

(14 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Reflection infrared spectra were then transformed into absorbance spectra by applying the Kramers-Kronig Transformation (KKT) (included in the OPUS 7.2 software package). Analytical spots were selected on the basis of preliminary imaging of the musical instrument under visible and UV light [45,46], in order to investigate variously preserved areas and retrieve information both from the varnish and from the underlying layers. Sub-millimetric samples were detached by a scalpel from the most preserved area among those previously selected as non-invasive FTIR analytical spots.…”

Section: Methodsmentioning

confidence: 99%

Reflection FTIR spectroscopy for the study of historical bowed string instruments: Invasive and non-invasive approaches

Fiocco

Invernizzi

Grassi

et al. 2021

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

Self Cite

View full text Add to dashboard Cite

A micro-sample detached from a historical bowed string instrument represents a valuable record that allows researchers to collect a wealth of information concerning the materials used by the great Masters of violin-making art and to disclose-at least partiallytheir procedures for finishing and varnishing. In the present work, a set of four cross-sectioned micro-samplescollected from well-preserved bowed string instruments made by Antonio Stradivari and Lorenzo Storioni-are investigated by Synchrotron Radiation (SR) FTIR micro-spectroscopy in reflection mode. SR-FTIR spectra are considered both as point analysis and as univariate and multivariate chemical maps. Moreover, data obtained by a non-invasive approach with a portable reflection FTIR spectrometer and SEM-EDX data on the same cross-sections are also considered. FTIR investigation of the cross-sections is a challenging task for such brittle and complex layered micro-samples. Nevertheless, the high intensity of the analytical SR beam used in reflection geometry allowed us to obtain informative FTIR spectra and to fully preserve the integrity of the samples. Both the non-invasive and the micro-invasive reflection FTIR approaches can reveal the materials spread on the wood surface to finish the musical instruments. The fingerprint of Lorenzo Storioni in his production around 1790 is highlighted in the cross sectioned samples, definitely different from the technique of Stradivari.

show abstract

Section: Methodsmentioning

confidence: 99%

Reflection FTIR spectroscopy for the study of historical bowed string instruments: Invasive and non-invasive approaches

Fiocco

Invernizzi

Grassi

et al. 2021

Spectrochimica Acta Part A: Molecular and Biomolecular Spectros

Self Cite

View full text Add to dashboard Cite

show abstract

“…at 360 nm); the images were collected using a full‐frame Nikon D4 digital camera mounting a 50 mm F1.4 Nikkor objective with a Kodak Wratten 2E filter (longpass filter blocking wavelengths below 415 nm), a 30s exposure time, aperture 11, and ISO 400. The UV‐induced fluorescence (UVIFL) images were compared through an image analyzer software specifically built for this purpose, which helped to distinguish WO surfaces from the hypothetic BC ones.…”

Section: Methodsmentioning

confidence: 99%

The elemental composition of Stradivari's musical instruments: new results through non‐invasive EDXRF analysis

et al. 2017

View full text Add to dashboard Cite

During recent decades, many researchers have tried to understand the main influences on the extraordinary sound and beauty of the masterpieces made by the ancient violin makers. This is still a challenge for many others today. Mainly because of a lack of written historical documents, the rediscovery of some of the ancient violin‐making processes was made possible thanks to scientific analyses performed on their materials by means of diagnostic techniques. However, understanding which substances were adopted is a very hard task, because the analyses are influenced by many factors: for example, alterations, wear, retouches, and the heterogeneity of materials. This paper presents some new EDXRF results collected on eight‐stringed musical instruments made by Antonio Stradivari between 1669 and 1734 (“Clisbee” 1669, “Hellier” 1679, “Ford‐Rougemont” 1703, “Joachim‐Ma” 1714, “Russian Federation” viola 1715, “Cremonese” 1715, “Vesuvius” 1727, and “Scotland” 1734) and now preserved at the Museo del Violino in Cremona. A brief comparison with a modern violin made by Simone Ferdinando Sacconi (“Hellier copy” 1941), one of the most eminent violin makers of the 20th century and one of the greatest experts on Stradivari's work, is also provided. This represents the first comparative analysis of a wide number of ancient musical instruments made by the same violin maker over an extended period. A non‐destructive and non‐invasive approach was followed to (a) understand the elemental composition differences between the best conserved and most worn‐out surfaces; (b) check if there are elemental similarities among the finishing materials of violins made in different years by the same violin maker; (c) give new suggestions about the materials used. To distinguish the best conserved areas from the worn‐out ones, a preliminary investigation by UV‐induced fluorescence photography was performed. In addition, stereomicroscopic observations and Fourier transform infrared spectroscopy (FTIR) analyses were performed on selected areas to validate the hypotheses. The results, in some cases comparable with previous research on Stradivari instruments, have increased the pool of information about materials and treatments adopted in the Stradivari workshop.

show abstract

“…There is also a mobile application to assist historic building inspection and damage identification (73). Finally, the use of spectroscopy is applied to analyze musical instruments' surface (67).…”

Section: Systems Oriented Towards Preventive Conservationmentioning

confidence: 99%

Usability of data-oriented user interfaces for cultural heritage: A systematic mapping study

Diulio

Gardey

Gómez

et al. 2021

Journal of Information Science

View full text Add to dashboard Cite

This study surveys the state of the art in usability and user experience strategies applied to applications that deal with large amounts of data in the field of cultural heritage, highlighting the most prominent aspects and underlining the under-explored. In these applications, large amounts of data need to be wisely presented to help final users at drawing conclusions and making decisions. While sophisticated technology may be used to improve the user experience, it should not be applied to the detriment of usability, which is critical for the success of these applications. We performed a systematic mapping study to classify the literature retrieved in the four largest scientific databases by a structured search string. We classify applications according to purpose, intended users, the way they address and evaluate user experience and usability, among others, and include the analysis of combined results through maps. Findings reveal the contradiction that while most articles are intended for the education and tourism of the general public, only half of the studies evaluate usability. Moreover, there is a significant research gap in user interfaces for systems in the context of preventive conservation, for research, assessment and decision assistance. This is the first systematic mapping study combining usability and cultural heritage, especially for data-oriented applications. It shows that more research is necessary to assist conservators and researchers and to address usability from early stages of development.

show abstract

Automatic Analysis of UV-Induced Fluorescence Imagery of Historical Violins

Cited by 20 publications

References 29 publications

Reflection FTIR spectroscopy for the study of historical bowed string instruments: Invasive and non-invasive approaches

Reflection FTIR spectroscopy for the study of historical bowed string instruments: Invasive and non-invasive approaches

The elemental composition of Stradivari's musical instruments: new results through non‐invasive EDXRF analysis

Usability of data-oriented user interfaces for cultural heritage: A systematic mapping study

Contact Info

Product

Resources

About