High sensitivity optical measurement of skin gloss

High sensitivity optical measurement of skin gloss

Ezerskaia, A. (TU Delft ImPhys/Optics; Philips Research)
Ras, Arno (Philips Research)
Bloemen, Pascal (Philips Research)
Pereira, S.F. (TU Delft ImPhys/Optics)
Urbach, Paul (TU Delft ImPhys/Optics)
Varghese, Babu (Philips Research)

2017

We demonstrate a low-cost optical method for measuring the gloss properties with improved sensitivity in the low gloss regime, relevant for skin gloss properties. The gloss estimation method is based on, on the one hand, the slope of the intensity gradient in the transition regime between specular and diffuse reflection and on the other on the sum over the intensities of pixels above threshold, derived from a camera image obtained using unpolarized white light illumination. We demonstrate the improved sensitivity of the two proposed methods using Monte Carlo simulations and experiments performed on ISO gloss calibration standards with an optical prototype. The performance and linearity of the method was compared with different professional gloss measurement devices based on the ratio of specular to diffuse intensity. We demonstrate the feasibility for in-vivo skin gloss measurements by quantifying the temporal evolution of skin gloss after application of standard paraffin cream bases on skin. The presented method opens new possibilities in the fields of cosmetology and dermatopharmacology for measuring the skin gloss and resorption kinetics and the pharmacodynamics of various external agents.

Dermatology
Medical optics instrumentation
Optical diagnostics for medicine
Spectroscopy, tissue diagnostics

http://resolver.tudelft.nl/uuid:c8e640d8-e083-4d2d-a91a-9c904ecf4994

https://doi.org/10.1364/BOE.8.003981

2156-7085

Biomedical Optics Express, 8 (9), 3981-3992

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© 2017 A. Ezerskaia, Arno Ras, Pascal Bloemen, S.F. Pereira, Paul Urbach, Babu Varghese