METHOD AND DEVICE FOR MEASURING PPG SIGNAL BY USING MOBILE DEVICE

摘要

The present invention relates to a method for measuring a PPG signal using a mobile terminal. According to the method, oxygen saturation in a blood vessel according to pressure will be different for a contraction period and a relaxation period of the heart, and thus light absorption will be different. Thus, it can be checked that a value of color information (RGB, brightness, etc.) shown in a skin (finger, face, etc.) can be changed by being influenced by oxygen saturation. Therefore, the method can perform a work of restoring the PPG signal using the varied color information value.