What question did this study set out to answer?

The aim is to enhance vital parameter detection through a non-invasive optical method using multispectral imaging.

March 16, 20260 citationsOpen Access

Short-Wave Infrared based, remote vital parameter detection using pulsed illumination

OSOlaf SimanskiWismar University of Applied Sciences NHNiklas HuhsWismar University of Applied Sciences

Key Points

The aim is to enhance vital parameter detection through a non-invasive optical method using multispectral imaging.
Utilized remote photoplethysmography (rPPG) for vital parameters detection.
Employed a Sony IMX990 InGaAs sensor along with a visible and short-wave infrared LED array.
Developed a multispectral video system for improved measurement accuracy.
Demonstrated initial effectiveness of rPPG in detecting blood-volume changes remotely.
Achieved successful measurement of vital parameters without invasive sensors or cables.

Abstract

The field of non-invasive vital parameter detection is rapidly growing, offering improved patient care and greater comfort by reducing invasive sensors and cables. Remote photoplethysmography (rPPG) is an optical method that measures blood-volume changes in tissue microvasculature. Similar to conventional PPG, which uses LEDs and a photodiode to detect transmitted light through a finger, rPPG instead measures reflected light from selected regions of interest. Using a Sony IMX990 InGaAs sensor and an LED array covering visible and short-wave infrared wavelengths, this work extends rPPG to a multispectral video system and demonstrates its initial effectiveness.

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