The analysis of mural painting "The Crucifiction" in St. John the Baptist and St. John the Evangelist basilica in Torun

Rogóz, J.; Cupa, A.; Wiecek, B.

doi:10.21611/qirt.2008.16_07_07

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2021

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“…Heritage experts face even such cases where original paintings were covered by subsequent mortar and paint layers due to changes in taste, religious belief, ownership or alterations of the building. Indeed, many examples of precious paintings or sketch drawings covered during history are reported [6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Revealing Underdrawings in Wall Paintings of Complex Stratigraphy with a Novel Reflectance Photoacoustic Imaging Prototype

et al. 2021

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Revealing precious hidden features by a completely non-invasive approach is one of the crucial issues in the Heritage Science field. In this regard, concealed fresco paintings still represent an analytical challenge. This paper addresses the specific issue in wall painting diagnostics by the photoacoustic (PA) imaging technique, already proven to be efficient in revealing underdrawings and internal stratigraphy in movable paintings on paper and canvas. A newly set-up reflection PA prototype was applied here for the first time to probe the charcoal, graphite and sinopia hidden sketch drawings in concealed (gypsum, limewash, overpainted) wall paintings. The results presented here push forward the frontiers of the PA imaging technique and point to its potential effectiveness of revealing hidden underdrawings in historical wall paintings with complex stratigraphy.

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Section: Introductionmentioning

confidence: 99%