  The ability of sensing breathing is becoming an increasingly important
function for technology that aims at supporting both psychological and physical
wellbeing. We demonstrate ThermSense, a new breathing sensing platform based on
smartphone technology and low-cost thermal camera, which allows a user to
measure his/her breathing pattern in a contact-free manner. With the designed
key functions of Thermal Voxel Integration-based breathing estimation and
respiration variability spectrogram (RVS, bi-dimensional representation of
breathing dynamics), the developed platform provides scalability and
flexibility for gathering respiratory physiological measurements ubiquitously.
The functionality could be used for a variety of applications from stress
monitoring to respiration training.
