B. Peri’s research while affiliated with Nottingham Trent University and other places

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Publications (1)

Figure 1. Spectral reflectance of paint consisting of various concentrations of azurite pigments in an egg tempera binding medium. The legends indicate the amount of egg tempera added to 1.5g of azurite. 
Figure 4. Effect of binding media on the spectral reflectance of paint: a) smalt pigment and b) Brazil wood lake pigment in an egg tempera, linseed oil and acrylic binding medium.
Figure 6. Kubelka-Munk theory predicting mixture of pigments. The dotted curve gives the predicted spectrum and the green curve give the measured spectrum of the actual mix. a) Measured reflectance of azurite (red), red earth (solid black) and a mixture of the two (green) in egg tempera compared with the predicted spectrum (dotted black) b) measured reflectance of azurite (red), lead tin yellow (solid black) and a mixture of the two (green) compared with the predicted spectrum (dotted black).
Figure 8. OCT cross-section images of various pigments (in a linseed oil binding medium) painted on glass microscope slides. 
Figure 9. OCT cross-section images of a) Kermes lake in linseed oil (~8 μ m thick layer); b) lake with lead white in linseed oil (~12 μ m thick layer) painted on a white Teflon board (short section on the left of the images are regions of bare Teflon). The faint dotted lines in the middle of the images are ghost images. 

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Pigment identification with optical coherence tomography and multispectral imaging
  • Article
  • Full-text available

January 2008

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2,539 Reads

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17 Citations

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K. Keita

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B. Peri

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T. Vajzovic

ABSTRACT We describe a new method,for non-invasive pigment identification by combining the spectral reflectance in the visible spectrum,with near infrared OCT cross-section images,of the subsurface layer structure. Keywords: optical coherence tomography, multispectral imaging, spectral imaging, pigment identification, scattering coefficient

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Citations (1)

... The reflectance spectra of the reference and the aged paint mock-ups are depicted in Figure 4. In agreement with [27], we found that, before the aging test, the morphology of the spectral curve of the reference mock-ups prepared with the same pigment was similar regardeless of the binder used. However, differences were found in the reflectance intensity between the samples made with the same pigment though with a different binder. ...

Reference:

Deterioration of White Tempera Mock-Ups Paints in a SO2-Rich Atmosphere
Pigment identification with optical coherence tomography and multispectral imaging

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K. Keita

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B. Peri

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T. Vajzovic