Basic study on non-contact respiration measurement during exercise tolerance test by using kinect sensor

We propose a non-contact respiration measurement in the exercise tolerance test by using the Kinect sensor instead of the fiber grating sensor, and examine the validity of the proposed method by a comparison experiment with the expiration gas analyzer. As the result, it become clear that the tidal volume and the quasi-tidal volume increase with almost similar trend. However it is confirmed that the divergence between the tidal volume and the quasi-tidal volume increases over 100 watt ergo-metric load. Meanwhile, the quasi-tidal volume calculated from the region of respiration change with more similar trend than the quasi-tidal volume calculated from the entire region of interest.