AI RESEARCH
Unmixing microinfrared spectroscopic images of cross-sections of historical oil paintings
arXiv CS.LG
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ArXi:2603.06673v1 Announce Type: cross Spectroscopic imaging (SI) has become central to heritage science because it enables non-invasive, spatially resolved characterisation of materials in artefacts. In particular, attenuated total reflection Fourier transform infrared microscopy (ATR-$\mu$FTIR) is widely used to analyse painting cross-sections, where a spectrum is recorded at each pixel to form a hyperspectral image