Noise and background removal in Raman sp
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Pablo Manuel Ramos; Itziar Ruisánchez
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Article
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2005
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John Wiley and Sons
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English
⚖ 352 KB
👁 1 views
The wavelet transform was applied to Raman spectra to remove heteroscedastic noise from ancient pigments such as azurite and ultramarine blue. Wavelets from the Daubechies, Coiflet and Symmlet families were evaluated. Two different thresholding strategies on the detail coefficients were applied; the