Deciphering hidden layers images through terahertz spectral fingerprints
Candida Moffa, Daniele Francescone, Alessandro Curcio, Anna Candida Felici, Marco Bellaveglia, Luca Piersanti, Mauro Migliorati, Massimo Petrarca
TL;DR
This paper demonstrates that terahertz multispectral imaging can non-destructively reveal concealed texts and analyze pigment compositions in layered artworks, offering new insights into hidden narratives and material characterization.
Contribution
It introduces the use of THz multispectral imaging for depth-resolved analysis of layered artworks, revealing hidden texts and mapping pigments simultaneously.
Findings
Successfully revealed concealed text beneath layered mockups
Reconstructed hidden narratives at different depths using frequency analysis
Mapped pigment composition providing chemical insights
Abstract
Terahertz radiation enables non destructive, depthresolved analysis of layered artworks. This study demonstrates THz multispectral imaging ability to reveal concealed text beneath mockup of pictorial layers, reconstructing hidden narratives at varying depths through frequency domain analysis.Simultaneously, it maps pigment composition, providing valuable chemical information. Showcasing the power to penetrate and decipher stratified materials, this work establishes THz multispectral imaging as a crucial tool for unlocking hidden secrets and characterizing materials in Cultural Heritage artifacts.
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