Spectral optimization for RGB skin oxygenation measurements

Author(s)

Sampaio, Murilo Sanches ; de Sousa Dias, Antonio Alberto ; de Souza, Raquel Pantojo ; Cardoso, George Cunha ; IEEE

• Document type: Journal article
• Source: 2021 SBFOTON INTERNATIONAL OPTICS AND PHOTONICS CONFERENCE (SBFOTON IOPC); v. N/A, p. 4-pg., 2021-01-01.

Abstract

In this article, we investigate the spectral properties of light and RGB systems that optimize precision for spectral quantification of chromophores melanin, oxyhemoglobin, and deoxyhemoglobin in skin images. The methodology uses the Beer-Lambert law, and the stability of the resultant system of equations is studied regarding spectral properties of the RGB channels plus illuminant. Good backward reconstruction of the image and low condition number for the linear system matrix predict that spectral parameter chosen to decompose the image in the absence of spectroscopy knowledge about the system and camera are adequate. (AU)

• FAPESP's process: 19/27107-6 - Quantified mapping of skin oxygenation and melanin density
• Grantee: Murilo Sanches Sampaio
• Support Opportunities: Scholarships in Brazil - Scientific Initiation