title: A study of opto-physiological modeling to quantify tissue absorbance in imaging photoplethysmography.
abstract: This paper presents an opto-physiological model (OPM) to quantify the absorbance of multi-layered tissue in imaging photoplethysmography (IPPG). The approach used to generate such a model is to revise the path length of the Beer Lambert law through the Monte Carlo (MC) simulation of multi-layered tissue. The OPM can mathematically quantify the effect of optical properties on the absorbance of multilayered tissue. Subsequently, the absorbance measured from homogeneous, multi-layered tissue phantoms compares with model predictions. To this end, the model is validated to predict the widest range of experimental outcomes while maintaining the highest possible level of accuracy. This study brings a new approach to understand the principle of IPPG.
authors.affiliation: Department of Electronic and Electrical Engineering, Loughborough University, Ashby Road, Leicestershire LE11 3TU UK. s.hu@lboro.ac.uk
authors.forename: Sijung
authors.initials: S
authors.lastname: Hu
authors.forename: Jia
authors.initials: J
authors.lastname: Zheng
authors.forename: Vicente
authors.initials: V
authors.lastname: Azorin Peris
mesh_terms: D000042:Absorption; D003198:Computer Simulation; D003952:Diagnostic Imaging / Q000379:methods*; D008954:Models, Biological; D009010:Monte Carlo Method; D055620:Optical Phenomena; D009928:Organ Specificity; D019047:Phantoms, Imaging; D017156:Photoplethysmography / Q000379:methods*; D015203:Reproducibility of Results