A multianalytical approach for the study of relief polychrome glazed ceramics (France, 19th century)

Beauvoit, Emmie; Ben Amara, Ayed; Chapoulie, Rémy; Lemasson, Quentin

doi:10.1016/j.jasrep.2023.104176

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Journal of Archaeological Science: Reports

2023

DOI: 10.1016/j.jasrep.2023.104176

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A multianalytical approach for the study of relief polychrome glazed ceramics (France, 19th century)

Emmie Beauvoit,

Ayed Ben Amara,

Rémy Chapoulie

et al.

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2024

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Cited by 2 publications

References 46 publications

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Terahertz time-domain spectro-imaging and hyperspectral imagery to investigate a historical Longwy glazed ceramic

Fauquet,

Galluzzi,

Taday

et al. 2024

Sci Rep

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Terahertz time-domain spectro-imaging and hyperspectral imagery to investigate a historical Longwy glazed ceramic

Fauquet,

Galluzzi,

Taday

et al. 2024

Sci Rep

View full text Add to dashboard Cite

Maiolica seen by Vis–NIR hyperspectral imaging spectroscopy: the application of an ultraportable camera at the Museo Nazionale del Bargello

Galluzzi,

Manca,

Puntin

et al. 2024

Eur. Phys. J. Plus

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An ultraportable hyperspectral camera operating in the Vis–NIR range (400–1000 nm) was used in this study for the non-invasive analysis of a selection of Italian maiolica wares and sherds from the Museo Nazionale del Bargello in Florence, Italy. The studied objects included authentic archaeological sherds, nineteenth-century forgeries, and ceramics of uncertain origin. The primary aim of this study was to evaluate the efficacy of hyperspectral imaging (HSI) spectroscopy combined with multivariate analysis for examining highly refractive and three-dimensional glazed ceramic artefacts within the constraints of a museum environment, including imperfect lighting conditions. Two data processing pipelines were tested: one based on principal component analysis (PCA) with score plots and the other on spectral angle mapper (SAM) classification obtained through the ENVI Spectral Hourglass Wizard (ENVI-SHW). The analyses enabled the discrimination between original parts and/or restored parts and additions. Among others, a complex assemblage of original sherds, restored parts, and non-ceramic parts was observed in a Renaissance pastiche vase. Furthermore, the method enabled the identification of the various chromophores providing clues on the artistic colour palette. In particular, the identification of chromium in the blue and green glazes of two objects of uncertain chronology suggested that they were not made before the nineteenth century. The acquisition of a larger and more detailed database of HSI data on maiolica glazes is strongly encouraged to improve the applicability of this method in authenticity, art-historical and archaeological studies.

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A multianalytical approach for the study of relief polychrome glazed ceramics (France, 19th century)

Cited by 2 publications

References 46 publications

Terahertz time-domain spectro-imaging and hyperspectral imagery to investigate a historical Longwy glazed ceramic

Terahertz time-domain spectro-imaging and hyperspectral imagery to investigate a historical Longwy glazed ceramic

Maiolica seen by Vis–NIR hyperspectral imaging spectroscopy: the application of an ultraportable camera at the Museo Nazionale del Bargello

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