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Canvas Painting Analysis Using Spectroscopic Analysis and Microcharacterisation Techniques.

Braeden Borg1, Michelle Dunn1, Andrew S M Ang2

  • 1School of Science, Computing and Engineering Technologies, Swinburne University of Technology, Hawthorn, VIC 3123, Australia.

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Summary
This summary is machine-generated.

This study integrates Raman spectroscopy, reflectance spectrophotometry, and 3D optical profilometry to create a comprehensive analytical map of artworks. This combined approach overcomes limitations of individual techniques for detailed material and surface analysis.

Keywords:
3-d optical profilometryRaman spectroscopycultural heritage conservationmicro characterisationreflectance spectrophotometryspatial mapping

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Area of Science:

  • Art analysis
  • Materials science
  • Spectroscopy

Background:

  • Raman spectroscopy is crucial for analyzing artwork materials but requires contextual data like color.
  • Reflectance spectrophotometry captures color but is sensitive to surface texture and rarely complements Raman data.
  • Existing methods lack integrated analysis for comprehensive artwork characterization.

Purpose of the Study:

  • To develop a multimodal analytical approach for artworks.
  • To overcome limitations of individual spectroscopic and imaging techniques.
  • To create a singular, spatially matched analytical map of artwork components.

Main Methods:

  • Utilized Raman spectroscopy for chemical identification of pigments, binders, and varnishes.
  • Employed reflectance spectrophotometry for surface color analysis.
  • Applied 3D optical profilometry to characterize paint surface micro-topology.
  • Spatially registered data from all three modalities.

Main Results:

  • Successfully integrated chemical, color, and topographical data from a synthetic painting sample.
  • Demonstrated the ability to display spectroscopic findings alongside corresponding color and surface topography.
  • Created a unified analytical map providing richer insights than individual methods.

Conclusions:

  • Multimodal analysis offers a more complete understanding of artwork composition and surface.
  • Integrating Raman, reflectance spectrophotometry, and 3D profilometry enhances material identification and characterization.
  • This approach provides a powerful tool for art conservation and analysis.