Multispectral and Hyperspectral Imaging for Skin Acquisition and Analysis

International audienceMultispectral and hyperspectral imaging are imaging modalities that collect more physical information than conventional color imaging, allowing detailed study of material properties. Applied to skin, these imaging methods enable noninvasive, pixel-by-pixel surface measurements, making them promising tools for in vivo skin study. In particular, skin spectral images can be analyzed using physics-based models, or artificial intelligence combined with databases. A typical application is the estimation of information such as melanin concentration and total blood volume fraction from a model-based approximation of skin structure and composition and a model of light–skin interaction