Plethysmography Using Skin Images Captured by RGB and Narrowband Filter Camera

Telecare has become of increasing importance during the COVID-19 pandemic, and the precise measurement of plethysmography has been shown to be highly effective. We propose a plethysmography measurement method using skin images captured by a combination of RGB and a narrowband filter (NBF) camera. For precise measurement, we introduce an independent component analysis score combined with the moving images. Our experimental results showed that the proposed method resulted in a better reproduction of plethysmography than that of individual images and also ICA scores only from RGB moving images. © 2022 IEEE.