Development of measurement system for subsurface scattering light of skin and analysis of its age-related changes

K. Kikuchi; M. Katsuyama; T. Shibata; J. Y. Hardeberg; T. Yuasa; Y. Aizu

doi:10.1117/12.3007926

20 September 2023 Development of measurement system for subsurface scattering light of skin and analysis of its age-related changes

K. Kikuchi, M. Katsuyama, T. Shibata, J. Y. Hardeberg, T. Yuasa, Y. Aizu

Author Affiliations +

Proceedings Volume 12608, Biomedical Imaging and Sensing Conference; 1260813 (2023) https://doi.org/10.1117/12.3007926
Event: Optics and Photonics International Congress, 2023, Yokohama, Japan

Abstract

We have developed a system that separates and measures the optical properties of skin, i.e., the surface reflection, diffuse reflection, and sub-surface scattering components of the skin. This system includes two polarization filters that separate light from the skin into a surface reflection component image and a diffuse reflection component image. Furthermore, by using a projector as a light source and irradiating the skin using a high-frequency binary illumination pattern, the sub-surface scattering component image alone can be separated and generated. Using the proposed system, we performed a survey of 154 Japanese women aged from their 20s to their 70s and analyzed age-related changes in the optical properties of their skin. The results revealed the following. First, the luminance value Y of the surface reflection from the cheek and its standard deviation within the analysis area increase with age. Second, the Y value of diffuse reflection from the skin decreases with age. Third, the amount of light in the sub-surface scattering components also decreases with age. The proposed system is expected to have a wide range of applications in the medical and cosmetic fields.

Citation Download Citation

K. Kikuchi, M. Katsuyama, T. Shibata, J. Y. Hardeberg, T. Yuasa, and Y. Aizu "Development of measurement system for subsurface scattering light of skin and analysis of its age-related changes", Proc. SPIE 12608, Biomedical Imaging and Sensing Conference, 1260813 (20 September 2023); https://doi.org/10.1117/12.3007926

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KEYWORDS

Reflection

Skin

Light scattering

Projection systems

Polarization

Cameras

Optical properties

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