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Terahertz imaging for subsurface investigation of art paintings
2017
Terahertz Emitters, Receivers, and Applications VIII
Terahertz (THz) reflective imaging is applied to the stratigraphic and subsurface investigation of oil paintings, with a focus on the mid-20th century Italian painting, 'After Fishing', by Ausonio Tanda. THz frequency-wavelet domain deconvolution, which is an enhanced deconvolution technique combining frequency-domain filtering and stationary wavelet shrinkage, is utilized to resolve the optically thin paint layers or brush strokes. Based on the deconvolved terahertz data, the stratigraphy of
doi:10.1117/12.2274292
fatcat:wavbnfhwa5c4tpqudoddkyjryi