Spectral lenses to highlight blood vessels in the skin

Abstract

A device for visualization of blood vessels in the human skin is presented. A diffractive optical element is used to locate blood vessels in the skin image. It has been shown that visualization of blood vessels is most effective in the form of obtaining an index image at wavelengths of 735 nm and 835 nm. The index is calculated using a formula similar to the NDVI formula. The work also uses an application software that is used to solve the problems of spectral analysis.

Keywords

• hyperspectrometer
• hypercube
• spectral analysis
• blood vessels on the skin
• spectral diffractive lens