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arXiv · 2505.23965

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
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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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BibTeXRIS

Candida Moffa, Daniele Francescone, Alessandro Curcio, Anna Candida Felici, Marco Bellaveglia, Luca Piersanti, Mauro Migliorati, Massimo Petrarca. 2025-05-29. Deciphering hidden layers images through terahertz spectral fingerprints. https://doi.org/10.1016/j.saa.2025.126510

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