Importance of integrated results of different non-destructive techniques in order to evaluate defects in panel paintings: The contribution of infrared, optical and ultrasonic techniques

S. Sfarra, P. Theodorakeas, C. Ibarra-Castanedo, N. P. Avdelidis, A. Paoletti, D. Paoletti, K. Hrissagis, A. Bendada, M. Koui, X. Maldague

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

The increasing deterioration of panel paintings can be due to physical processes that take place during exhibition or transit, or as a result of temperature and humidity fluctuations within a building, church or museum. In response to environmental alterations, a panel painting can expand or contract and a new equilibrium state is eventually reached. These adjustments though, are usually accompanied by a change in shape in order to accommodate to the new conditions. In this work, a holographic method for detecting detached regions and micro-cracks is described. Some of these defects are confirmed by Thermographic Signal Reconstruction (TSR) technique. In addition, Pulsed Phase Thermography (PPT) and Principal Component Thermography (PCT) allow to identify with greater contrast two artificial defects in Mylar which are crucial to understand the topic of interest: the discrimination between defect materials. Finally, traditional contact ultrasounds applications, are widely applied for the evaluation of the wood quality in several characterization procedures. Inspecting the specimen from the front side, the natural and artificial defects of the specimen are confirmed. Experimental results derived by the application of the integrated methods on an Italian panel painting reproduction, called The Angel specimen, are presented. The main advantages that these techniques can offer to the conservation and restoration of artworks are emphasized.

Original languageEnglish
Title of host publicationO3A
Subtitle of host publicationOptics for Arts, Architecture, and Archaeology III
Volume8084
DOIs
Publication statusPublished - 2011
Externally publishedYes
EventO3A: Optics for Arts, Architecture, and Archaeology III - Munich, Germany
Duration: 25 May 201126 May 2011

Conference

ConferenceO3A: Optics for Arts, Architecture, and Archaeology III
CountryGermany
CityMunich
Period25.5.1126.5.11

Keywords

  • Defects
  • Holographic Interferometry
  • Infrared Thermography
  • Ultrasonic Testing, Panel Paintings

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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  • Cite this

    Sfarra, S., Theodorakeas, P., Ibarra-Castanedo, C., Avdelidis, N. P., Paoletti, A., Paoletti, D., Hrissagis, K., Bendada, A., Koui, M., & Maldague, X. (2011). Importance of integrated results of different non-destructive techniques in order to evaluate defects in panel paintings: The contribution of infrared, optical and ultrasonic techniques. In O3A: Optics for Arts, Architecture, and Archaeology III (Vol. 8084). [80840R] https://doi.org/10.1117/12.889335