PROCÉDÉ POUR DÉDUIRE UN SIGNE DE VIE D'UNE PERSONNE À L'AIDE D'UN PARAMÈTRE ADAPTÉ

摘要

The present application discloses adjusting a parameter, the parameter being used to derive a physiological characteristic of an individual from an image of the user. Adjusting the parameter comprises obtaining the parameter for the individual, obtaining a corresponding parameter for a plurality of other individuals within a cohort of the individual and comparing 10174 the parameter for the individual with a statistically significant parameter for the plurality of other individuals. The parameter for the individual is adjusted 10176 in accordance with the difference between the parameter for the individual and the statistically significant parameter for the plurality of other individuals. The physiological characteristic may be a vital sign such as heart rate, breathing rate heart rate variability or oxygen saturation. The parameter which is adjusted may be a parameter which was initially determined in a calibration. The statistically significant parameter may be an average such as a mean or a median of the parameters of the others in the users sub-population.