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International Journal of Biomedical Imaging
Volume 2013, Article ID 978289, 15 pages
http://dx.doi.org/10.1155/2013/978289
Research Article

Skin Parameter Map Retrieval from a Dedicated Multispectral Imaging System Applied to Dermatology/Cosmetology

1National Electronic and Computer Technology Center, 112 Thailand Science Park, Phahonyothin Road, Khlong Nueng, Klong Luang, Pathumthani 12120, Thailand
2Laboratoire LE2I, UMR CNRS 6306, UFR Sciencees & Techniques, Université de Bourgogne, BP 47870, 21078 Dijon CEDEX, France

Received 1 May 2013; Revised 15 July 2013; Accepted 29 July 2013

Academic Editor: Vincent Paquit

Copyright © 2013 Romuald Jolivot et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In vivo quantitative assessment of skin lesions is an important step in the evaluation of skin condition. An objective measurement device can help as a valuable tool for skin analysis. We propose an explorative new multispectral camera specifically developed for dermatology/cosmetology applications. The multispectral imaging system provides images of skin reflectance at different wavebands covering visible and near-infrared domain. It is coupled with a neural network-based algorithm for the reconstruction of reflectance cube of cutaneous data. This cube contains only skin optical reflectance spectrum in each pixel of the bidimensional spatial information. The reflectance cube is analyzed by an algorithm based on a Kubelka-Munk model combined with evolutionary algorithm. The technique allows quantitative measure of cutaneous tissue and retrieves five skin parameter maps: melanin concentration, epidermis/dermis thickness, haemoglobin concentration, and the oxygenated hemoglobin. The results retrieved on healthy participants by the algorithm are in good accordance with the data from the literature. The usefulness of the developed technique was proved during two experiments: a clinical study based on vitiligo and melasma skin lesions and a skin oxygenation experiment (induced ischemia) with healthy participant where normal tissues are recorded at normal state and when temporary ischemia is induced.