[show abstract][hide abstract] ABSTRACT: A non-contact method of monitoring respiration rate is developed. The approach involved tracking a facial region of interest (ROI) associated with respiration in thermal images. Image processing techniques were used to enhance the recorded thermal images and to remove unwanted noise. The skin surface area centered on the tip of the nose was specified by a circle that covered the region affected by respiration process. Feature extraction and signal processing methods were applied to this region to compute the respiration rate. It was demonstrated that the method could successfully track the ROI for both regular and random head movement types and could determine respiration rate in a noncontact manner. Further work is in progress to enhance the algorithm so that it can cope with very large head movements.
Communication Systems Networks and Digital Signal Processing (CSNDSP), 2010 7th International Symposium on; 08/2010
[show abstract][hide abstract] ABSTRACT: A method has been developed to track a region related to respiration process in thermal images. The respiration region of interest (ROI) consisted of the skin area around the tip of the nose. The method was then used as part of a non-contact respiration rate monitoring that determined the skin temperature changes caused by respiration. The ROI was located by the first determining the relevant salient features of the human face physiology. These features were the warmest and coldest facial points. The tracking method was tested on thermal video images containing no head movements, small random and regular head movements. The method proved valuable for tracking the ROI in all these head movement types. It was also possible to use this tracking method to monitor respiration rate involving a number of head movement types. Currently, more investigations are underway to improve the tracking method so that it can track the ROI in cases larger head movements.
Computer Systems and Applications (AICCSA), 2010 IEEE/ACS International Conference on; 06/2010