SYSTEM AND METHOD FOR EXTRACTING PHYSIOLOGICAL INFORMATION FROM REMOTELY DETECTED ELECTROMAGNETIC RADIATION

摘要

The present invention relates to a device and a method for extracting physiological information indicative of at least one health symptom from remotely detected electromagnetic radiation. The device comprises an interface (20) for receiving a data stream comprising remotely detected image data representing an observed region comprising at least one subject of interest (12), wherein the image data comprises wavelength-dependent image information, wherein the wavelength-dependent image information is composed of at least two color channels (96, 98, 100) representative of respective wavelength portions; an image processor (22) for detecting channel signal strength information for at least two of the at least two color channels (96, 98, 100); and a data comparison unit (24) for comparing detected channel signal strengths with respective reference values.

主权项

1. Remote photoplethysmographic monitoring system for extracting physiological information indicative of at least one health symptom from remotely detected electromagnetic radiation, comprising:
an interface for receiving a data stream comprising remotely detected video data representing an observed region comprising at least one subject of interest, wherein the video data comprises wavelength-dependent image information, wherein the wavelength-dependent image information is composed of at least two color channels representative of respective wavelength portions; an image processor for detecting relative channel signal strength information for at least two of the at least two color channels; and a data comparison unit for comparing detected relative channel signal strengths with respective reference values obtained from reference data generated by monitoring healthy subjects, wherein the data comparison unit is further configured for determining a ratio of the detected relative channel signal strengths of at least two of the at least two color channels and for comparing the ratio of the relative channel signal strengths with a reference ratio; and a symptom analyzer for deriving blood composition-indicative information from the comparison of actual relative channel signal strengths with the reference values.