Systems and methods for model-based non-contact physiological data acquisition

A method for non-contact acquisition of current physiological data representing a subject, the method comprising:

• detecting an electromagnetic wave at least in part generated by a first subject with electronic circuitry that is associated with said first subject;
• said electromagnetic wave including a first electromagnetic wave that has been modified by a second electromagnetic wave,
• said first electromagnetic wave representing a first physiological state of said first subject,
• said second electromagnetic wave is generated by said second subject and represents a second physiological state of said second subject;
• based on a first parameter of said first electromagnetic wave, that has determined with a programmable processor from said electromagnetic wave, determining a second parameter of said second electromagnetic wave;
• acquiring a set of historical physiological data associated with the second subject from a tangible, non-transitory data storage medium;
• and
• deriving current physiological data representing current physiological state of the second subject based on said set of historical physiological data and a comparison between the first and second parameters.