Unmixing of human skin optical reflectance maps by Non-negative Matrix Factorization algorithm

July Galeano (1) , Romuald Jolivot (2) , Franck Marzani (1) , Yannick Benezeth (1)

1 Le2i - Laboratoire Electronique, Informatique et Image [UMR6306]
2 NECTEC - National Electronics and Computer Technology Center

We present in this paper the decomposition of human skin absorption spectra with a Non-negative Matrix Factorization method. In doing so, we are able to quantify the relative proportion of the main chromophores present in the epidermis and the dermis. We present experimental results showing that we obtain a good estimate of melanin and hemoglobin concentrations. Our approach has been validated by analyzing the human skin absorption spectra in areas of healthy skin and areas affected by melasma on eight patients.

Mots clés: Non-negative Matrix Factorization; Spectral reconstruction; Chromophores quantification; Skin optical reflectance maps

Domaines: Informatique [cs]; Imagerie médicale; Informatique [cs]; Traitement du signal et de l'image [eess.SP]; Sciences de l'ingénieur [physics]; Traitement du signal et de l'image [eess.SP]

July Galeano, Romuald Jolivot, Franck Marzani, Yannick Benezeth. Unmixing of human skin optical reflectance maps by Non-negative Matrix Factorization algorithm. Biomedical Signal Processing and Control, 2013, 8 (2), pp.169-175. ⟨10.1016/j.bspc.2012.08.007⟩. ⟨hal-00742425⟩