Contactless Monitoring of Breathing Patterns and Respiratory Rate at the Pit of the Neck: A Single Camera Approach

Figure 4

Example of trends relative to (a) pressure drop ΔP recorded by the differential pressure sensor, (b) integrated and normalized ΔP signal used to extract reference pattern and respiratory rate values, and (c) signal obtained by the video processing algorithm using the data collected from the CCD sensor of the camera.