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Non-contact Quantitative Diffuse Reflectance Spectroscopy

V. Sorgato , M. Berger , C. Emain , A. Koenig , B. Roig , C. Vever-Bizet , J.M. Dinten , G. Bourg-Heckly , A. Planat-Chretien

Bibtex , URL

DIFFUSE OPTICAL IMAGING V, 9538, 95380U (2015)

DOI: 10.1117/12.2183764

ISSN: 0277-786X

Abstract

We validate a non-contact Diffuse Reflectance Spectroscopy (DRS) system as a first stage to approach quantitative multi-spectral imaging technique. The non-contact DRS system with separated illumination and detection paths was developed with different progressive set-ups which were all compared to a well-founded contact DRS system. While quantitation of the absorption coefficient is well achieved with the existing method, the calculation of the scattering coefficient is deteriorated by the non-contact architecture measurements. We have therefore developed an adaptive reference-based algorithm to compensate for this effect.