Hyperspectral imaging helps identify materials used in historical paintings and manuscripts
In short: Researchers at the Nello Carrara Institute and the National Gallery of Art have utilized hyperspectral imaging to study cultural heritage. By capturing hundreds of narrow light bands, this technology allows scientists to identify and map the various pigments and substances used by artists in Old Master paintings and illuminated manuscripts.
This noninvasive method works by creating a massive dataset known as an image-cube, where every pixel contains a unique light spectrum. While the technique provides a powerful way to locate specific materials for further testing, the sheer volume of data often requires complex mathematical tools, such as principal component analysis, to simplify the information for analysis.
Why it matters: Advanced light-based imaging allows conservators to see the chemical makeup of ancient art without touching it.
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Sources
- Summary by Intellect · source: Research: Cucci et al. (2016). Reflectance Hyperspectral Imaging for Investigation of Works of Art: Old Master Paintings and Illuminated Manuscripts. Accounts of Chemical Research.
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